Merge pull request #7378 from neondatabase/rc/2024-04-15

Release 2024-04-15

.config/nextest.toml

@@ -1,2 +1,2 @@
 [profile.default]
-slow-timeout = { period = "60s", terminate-after = 3 }
+slow-timeout = { period = "20s", terminate-after = 3 }

.dockerignore

@@ -17,7 +17,6 @@
 !libs/
 !neon_local/
 !pageserver/
-!patches/
 !pgxn/
 !proxy/
 !s3_scrubber/

.github/actionlint.yml

@@ -1,11 +1,12 @@
 self-hosted-runner:
   labels:
     - arm64
+    - dev
     - gen3
     - large
-    - large-arm64
+    # Remove `macos-14` from the list after https://github.com/rhysd/actionlint/pull/392 is merged.
+    - macos-14
     - small
-    - small-arm64
     - us-east-2
 config-variables:
   - REMOTE_STORAGE_AZURE_CONTAINER

.github/actions/neon-branch-create/action.yml

@@ -3,13 +3,13 @@ description: 'Create Branch using API'
 
 inputs:
   api_key:
-    description: 'Neon API key'
+    desctiption: 'Neon API key'
     required: true
   project_id:
-    description: 'ID of the Project to create Branch in'
+    desctiption: 'ID of the Project to create Branch in'
     required: true
   api_host:
-    description: 'Neon API host'
+    desctiption: 'Neon API host'
     default: console-stage.neon.build
 outputs:
   dsn:

.github/actions/neon-branch-delete/action.yml

@@ -3,16 +3,16 @@ description: 'Delete Branch using API'
 
 inputs:
   api_key:
-    description: 'Neon API key'
+    desctiption: 'Neon API key'
     required: true
   project_id:
-    description: 'ID of the Project which should be deleted'
+    desctiption: 'ID of the Project which should be deleted'
     required: true
   branch_id:
-    description: 'ID of the branch to delete'
+    desctiption: 'ID of the branch to delete'
     required: true
   api_host:
-    description: 'Neon API host'
+    desctiption: 'Neon API host'
     default: console-stage.neon.build
 
 runs:

.github/actions/neon-project-create/action.yml

@@ -3,22 +3,22 @@ description: 'Create Neon Project using API'
 
 inputs:
   api_key:
-    description: 'Neon API key'
+    desctiption: 'Neon API key'
     required: true
   region_id:
-    description: 'Region ID, if not set the project will be created in the default region'
+    desctiption: 'Region ID, if not set the project will be created in the default region'
     default: aws-us-east-2
   postgres_version:
-    description: 'Postgres version; default is 15'
-    default: '15'
+    desctiption: 'Postgres version; default is 15'
+    default: 15
   api_host:
-    description: 'Neon API host'
+    desctiption: 'Neon API host'
     default: console-stage.neon.build
   provisioner:
-    description: 'k8s-pod or k8s-neonvm'
+    desctiption: 'k8s-pod or k8s-neonvm'
     default: 'k8s-pod'
   compute_units:
-    description: '[Min, Max] compute units; Min and Max are used for k8s-neonvm with autoscaling, for k8s-pod values Min and Max should be equal'
+    desctiption: '[Min, Max] compute units; Min and Max are used for k8s-neonvm with autoscaling, for k8s-pod values Min and Max should be equal'
     default: '[1, 1]'
 
 outputs:

.github/actions/neon-project-delete/action.yml

@@ -3,13 +3,13 @@ description: 'Delete Neon Project using API'
 
 inputs:
   api_key:
-    description: 'Neon API key'
+    desctiption: 'Neon API key'
     required: true
   project_id:
-    description: 'ID of the Project to delete'
+    desctiption: 'ID of the Project to delete'
     required: true
   api_host:
-    description: 'Neon API host'
+    desctiption: 'Neon API host'
     default: console-stage.neon.build
 
 runs:

.github/workflows/build-build-tools-image.yml

@@ -39,7 +39,7 @@ jobs:
       matrix:
         arch: [ x64, arm64 ]
 
-    runs-on: ${{ fromJson(format('["self-hosted", "gen3", "{0}"]', matrix.arch == 'arm64' && 'large-arm64' || 'large')) }}
+    runs-on: ${{ fromJson(format('["self-hosted", "dev", "{0}"]', matrix.arch)) }}
 
     env:
       IMAGE_TAG: ${{ inputs.image-tag }}

.github/workflows/build_and_test.yml

@@ -236,6 +236,27 @@ jobs:
           submodules: true
           fetch-depth: 1
 
+      - name: Check Postgres submodules revision
+        shell: bash -euo pipefail {0}
+        run: |
+          # This is a temporary solution to ensure that the Postgres submodules revision is correct (i.e. the updated intentionally).
+          # Eventually it will be replaced by a regression test https://github.com/neondatabase/neon/pull/4603
+
+          FAILED=false
+          for postgres in postgres-v14 postgres-v15 postgres-v16; do
+            expected=$(cat vendor/revisions.json | jq --raw-output '."'"${postgres}"'"')
+            actual=$(git rev-parse "HEAD:vendor/${postgres}")
+            if [ "${expected}" != "${actual}" ]; then
+              echo >&2 "Expected ${postgres} rev to be at '${expected}', but it is at '${actual}'"
+              FAILED=true
+            fi
+          done
+
+          if [ "${FAILED}" = "true" ]; then
+            echo >&2 "Please update vendor/revisions.json if these changes are intentional"
+            exit 1
+          fi
+
       - name: Set pg 14 revision for caching
         id: pg_v14_rev
         run: echo pg_rev=$(git rev-parse HEAD:vendor/postgres-v14) >> $GITHUB_OUTPUT
@@ -341,9 +362,6 @@ jobs:
         env:
           NEXTEST_RETRIES: 3
         run: |
-          #nextest does not yet support running doctests
-          cargo test --doc $CARGO_FLAGS $CARGO_FEATURES
-
           for io_engine in std-fs tokio-epoll-uring ; do
             NEON_PAGESERVER_UNIT_TEST_VIRTUAL_FILE_IOENGINE=$io_engine ${cov_prefix} cargo nextest run $CARGO_FLAGS $CARGO_FEATURES
           done
@@ -432,9 +450,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        build_type: [ debug ]
-        pg_version: [ v15 ]
-        pageserver_compaction_algorithm_kind: [ "legacy", "tiered" ]
+        build_type: [ debug, release ]
+        pg_version: [ v14, v15, v16 ]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -460,11 +477,6 @@ jobs:
           BUILD_TAG: ${{ needs.tag.outputs.build-tag }}
           PAGESERVER_VIRTUAL_FILE_IO_ENGINE: tokio-epoll-uring
           PAGESERVER_GET_VECTORED_IMPL: vectored
-          PAGESERVER_GET_IMPL: vectored
-          PAGESERVER_VALIDATE_VEC_GET: true
-          PAGESERVER_DEFAULT_TENANT_CONFIG_COMPACTION_ALGORITHM: 'kind="${{ matrix.pageserver_compaction_algorithm_kind }}"'
-          # catch the tests that override `tenant_config` as a whole without specifying the compaction algorithm `kind`
-          NEON_PAGESERVER_PANIC_ON_UNSPECIFIED_COMPACTION_ALGORITHM: true
 
       # Temporary disable this step until we figure out why it's so flaky
       # Ref https://github.com/neondatabase/neon/issues/4540
@@ -544,33 +556,12 @@ jobs:
           PERF_TEST_RESULT_CONNSTR: "${{ secrets.PERF_TEST_RESULT_CONNSTR }}"
           TEST_RESULT_CONNSTR: "${{ secrets.REGRESS_TEST_RESULT_CONNSTR_NEW }}"
           PAGESERVER_VIRTUAL_FILE_IO_ENGINE: tokio-epoll-uring
-          PAGESERVER_GET_VECTORED_IMPL: vectored
-          PAGESERVER_GET_IMPL: vectored
-          PAGESERVER_VALIDATE_VEC_GET: false
       # XXX: no coverage data handling here, since benchmarks are run on release builds,
       # while coverage is currently collected for the debug ones
 
-  report-benchmarks-failures:
-    needs: [ benchmarks, create-test-report ]
-    if: github.ref_name == 'main' && failure() && needs.benchmarks.result == 'failure'
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: slackapi/slack-github-action@v1
-      with:
-        channel-id: C060CNA47S9 # on-call-staging-storage-stream
-        slack-message: |
-          Benchmarks failed on main: ${{ github.event.head_commit.url }}
-
-          Allure report: ${{ needs.create-test-report.outputs.report-url }}
-      env:
-        SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
-
   create-test-report:
     needs: [ check-permissions, regress-tests, coverage-report, benchmarks, build-build-tools-image ]
     if: ${{ !cancelled() && contains(fromJSON('["skipped", "success"]'), needs.check-permissions.result) }}
-    outputs:
-      report-url: ${{ steps.create-allure-report.outputs.report-url }}
 
     runs-on: [ self-hosted, gen3, small ]
     container:
@@ -727,13 +718,9 @@ jobs:
     uses: ./.github/workflows/trigger-e2e-tests.yml
     secrets: inherit
 
-  neon-image-arch:
+  neon-image:
     needs: [ check-permissions, build-build-tools-image, tag ]
-    strategy:
-      matrix:
-        arch: [ x64, arm64 ]
-
-    runs-on: ${{ fromJson(format('["self-hosted", "gen3", "{0}"]', matrix.arch == 'arm64' && 'large-arm64' || 'large')) }}
+    runs-on: [ self-hosted, gen3, large ]
 
     steps:
       - name: Checkout
@@ -748,13 +735,19 @@ jobs:
         run: |
           mkdir -p .docker-custom
           echo DOCKER_CONFIG=$(pwd)/.docker-custom >> $GITHUB_ENV
-      - uses: docker/setup-buildx-action@v2
+      - uses: docker/setup-buildx-action@v3
 
       - uses: docker/login-action@v3
         with:
           username: ${{ secrets.NEON_DOCKERHUB_USERNAME }}
           password: ${{ secrets.NEON_DOCKERHUB_PASSWORD }}
 
+      - uses: docker/login-action@v3
+        with:
+          registry: 369495373322.dkr.ecr.eu-central-1.amazonaws.com
+          username: ${{ secrets.AWS_ACCESS_KEY_DEV }}
+          password: ${{ secrets.AWS_SECRET_KEY_DEV }}
+
       - uses: docker/build-push-action@v5
         with:
           context: .
@@ -766,52 +759,25 @@ jobs:
           push: true
           pull: true
           file: Dockerfile
-          cache-from: type=registry,ref=neondatabase/neon:cache-${{ matrix.arch }}
-          cache-to: type=registry,ref=neondatabase/neon:cache-${{ matrix.arch }},mode=max
+          cache-from: type=registry,ref=neondatabase/neon:cache
+          cache-to: type=registry,ref=neondatabase/neon:cache,mode=max
           tags: |
-            neondatabase/neon:${{ needs.tag.outputs.build-tag }}-${{ matrix.arch }}
+            369495373322.dkr.ecr.eu-central-1.amazonaws.com/neon:${{needs.tag.outputs.build-tag}}
+            neondatabase/neon:${{needs.tag.outputs.build-tag}}
 
       - name: Remove custom docker config directory
         if: always()
         run: |
           rm -rf .docker-custom
 
-  neon-image:
-    needs: [ neon-image-arch, tag ]
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.NEON_DOCKERHUB_USERNAME }}
-          password: ${{ secrets.NEON_DOCKERHUB_PASSWORD }}
-
-      - name: Create multi-arch image
-        run: |
-          docker buildx imagetools create -t neondatabase/neon:${{ needs.tag.outputs.build-tag }} \
-                                             neondatabase/neon:${{ needs.tag.outputs.build-tag }}-x64 \
-                                             neondatabase/neon:${{ needs.tag.outputs.build-tag }}-arm64
-
-      - uses: docker/login-action@v3
-        with:
-          registry: 369495373322.dkr.ecr.eu-central-1.amazonaws.com
-          username: ${{ secrets.AWS_ACCESS_KEY_DEV }}
-          password: ${{ secrets.AWS_SECRET_KEY_DEV }}
-
-      - name: Push multi-arch image to ECR
-        run: |
-          docker buildx imagetools create -t 369495373322.dkr.ecr.eu-central-1.amazonaws.com/neon:${{ needs.tag.outputs.build-tag }} \
-                                                                                neondatabase/neon:${{ needs.tag.outputs.build-tag }}
-
-  compute-node-image-arch:
+  compute-node-image:
     needs: [ check-permissions, build-build-tools-image, tag ]
+    runs-on: [ self-hosted, gen3, large ]
+
     strategy:
       fail-fast: false
       matrix:
         version: [ v14, v15, v16 ]
-        arch: [ x64, arm64 ]
-
-    runs-on: ${{ fromJson(format('["self-hosted", "gen3", "{0}"]', matrix.arch == 'arm64' && 'large-arm64' || 'large')) }}
 
     steps:
       - name: Checkout
@@ -826,7 +792,7 @@ jobs:
         run: |
           mkdir -p .docker-custom
           echo DOCKER_CONFIG=$(pwd)/.docker-custom >> $GITHUB_ENV
-      - uses: docker/setup-buildx-action@v2
+      - uses: docker/setup-buildx-action@v3
         with:
           # Disable parallelism for docker buildkit.
           # As we already build everything with `make -j$(nproc)`, running it in additional level of parallelisam blows up the Runner.
@@ -858,14 +824,15 @@ jobs:
           push: true
           pull: true
           file: Dockerfile.compute-node
-          cache-from: type=registry,ref=neondatabase/compute-node-${{ matrix.version }}:cache-${{ matrix.arch }}
-          cache-to: type=registry,ref=neondatabase/compute-node-${{ matrix.version }}:cache-${{ matrix.arch }},mode=max
+          cache-from: type=registry,ref=neondatabase/compute-node-${{ matrix.version }}:cache
+          cache-to: type=registry,ref=neondatabase/compute-node-${{ matrix.version }}:cache,mode=max
           tags: |
-            neondatabase/compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }}-${{ matrix.arch }}
+            369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-node-${{ matrix.version }}:${{needs.tag.outputs.build-tag}}
+            neondatabase/compute-node-${{ matrix.version }}:${{needs.tag.outputs.build-tag}}
 
       - name: Build compute-tools image
         # compute-tools are Postgres independent, so build it only once
-        if: matrix.version == 'v16'
+        if: ${{ matrix.version == 'v16' }}
         uses: docker/build-push-action@v5
         with:
           target: compute-tools-image
@@ -879,57 +846,14 @@ jobs:
           pull: true
           file: Dockerfile.compute-node
           tags: |
-            neondatabase/compute-tools:${{ needs.tag.outputs.build-tag }}-${{ matrix.arch }}
+            369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-tools:${{ needs.tag.outputs.build-tag }}
+            neondatabase/compute-tools:${{ needs.tag.outputs.build-tag }}
 
       - name: Remove custom docker config directory
         if: always()
         run: |
           rm -rf .docker-custom
 
-  compute-node-image:
-    needs: [ compute-node-image-arch, tag ]
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        version: [ v14, v15, v16 ]
-
-    steps:
-      - uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.NEON_DOCKERHUB_USERNAME }}
-          password: ${{ secrets.NEON_DOCKERHUB_PASSWORD }}
-
-      - name: Create multi-arch compute-node image
-        run: |
-          docker buildx imagetools create -t neondatabase/compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }} \
-                                             neondatabase/compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }}-x64 \
-                                             neondatabase/compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }}-arm64
-
-      - name: Create multi-arch compute-tools image
-        if: matrix.version == 'v16'
-        run: |
-          docker buildx imagetools create -t neondatabase/compute-tools:${{ needs.tag.outputs.build-tag }} \
-                                             neondatabase/compute-tools:${{ needs.tag.outputs.build-tag }}-x64 \
-                                             neondatabase/compute-tools:${{ needs.tag.outputs.build-tag }}-arm64
-
-      - uses: docker/login-action@v3
-        with:
-          registry: 369495373322.dkr.ecr.eu-central-1.amazonaws.com
-          username: ${{ secrets.AWS_ACCESS_KEY_DEV }}
-          password: ${{ secrets.AWS_SECRET_KEY_DEV }}
-
-      - name: Push multi-arch compute-node-${{ matrix.version }} image to ECR
-        run: |
-          docker buildx imagetools create -t 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }} \
-                                                                                neondatabase/compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }}
-
-      - name: Push multi-arch compute-tools image to ECR
-        if: matrix.version == 'v16'
-        run: |
-          docker buildx imagetools create -t 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-tools:${{ needs.tag.outputs.build-tag }} \
-                                                                                neondatabase/compute-tools:${{ needs.tag.outputs.build-tag }}
-
   vm-compute-node-image:
     needs: [ check-permissions, tag, compute-node-image ]
     runs-on: [ self-hosted, gen3, large ]
@@ -937,8 +861,11 @@ jobs:
       fail-fast: false
       matrix:
         version: [ v14, v15, v16 ]
+    defaults:
+      run:
+        shell: sh -eu {0}
     env:
-      VM_BUILDER_VERSION: v0.29.3
+      VM_BUILDER_VERSION: v0.23.2
 
     steps:
       - name: Checkout
@@ -951,48 +878,26 @@ jobs:
           curl -fL https://github.com/neondatabase/autoscaling/releases/download/$VM_BUILDER_VERSION/vm-builder -o vm-builder
           chmod +x vm-builder
 
-      # Use custom DOCKER_CONFIG directory to avoid conflicts with default settings
-      # The default value is ~/.docker
-      - name: Set custom docker config directory
-        run: |
-          mkdir -p .docker-custom
-          echo DOCKER_CONFIG=$(pwd)/.docker-custom >> $GITHUB_ENV
-
-      - uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.NEON_DOCKERHUB_USERNAME }}
-          password: ${{ secrets.NEON_DOCKERHUB_PASSWORD }}
-
       # Note: we need a separate pull step here because otherwise vm-builder will try to pull, and
       # it won't have the proper authentication (written at v0.6.0)
       - name: Pulling compute-node image
         run: |
-          docker pull neondatabase/compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }}
+          docker pull 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-node-${{ matrix.version }}:${{needs.tag.outputs.build-tag}}
 
       - name: Build vm image
         run: |
           ./vm-builder \
             -spec=vm-image-spec.yaml \
-            -src=neondatabase/compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }} \
-            -dst=neondatabase/vm-compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }}
+            -src=369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-node-${{ matrix.version }}:${{needs.tag.outputs.build-tag}} \
+            -dst=369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-${{ matrix.version }}:${{needs.tag.outputs.build-tag}}
 
       - name: Pushing vm-compute-node image
         run: |
-          docker push neondatabase/vm-compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }}
-
-      - name: Remove custom docker config directory
-        if: always()
-        run: |
-          rm -rf .docker-custom
+          docker push 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-${{ matrix.version }}:${{needs.tag.outputs.build-tag}}
 
   test-images:
     needs: [ check-permissions, tag, neon-image, compute-node-image ]
-    strategy:
-      fail-fast: false
-      matrix:
-        arch: [ x64, arm64 ]
-
-    runs-on: ${{ fromJson(format('["self-hosted", "gen3", "{0}"]', matrix.arch == 'arm64' && 'small-arm64' || 'small')) }}
+    runs-on: [ self-hosted, gen3, small ]
 
     steps:
       - name: Checkout
@@ -1010,7 +915,7 @@ jobs:
       - name: Verify image versions
         shell: bash # ensure no set -e for better error messages
         run: |
-          pageserver_version=$(docker run --rm neondatabase/neon:${{ needs.tag.outputs.build-tag }} "/bin/sh" "-c" "/usr/local/bin/pageserver --version")
+          pageserver_version=$(docker run --rm 369495373322.dkr.ecr.eu-central-1.amazonaws.com/neon:${{needs.tag.outputs.build-tag}} "/bin/sh" "-c" "/usr/local/bin/pageserver --version")
 
           echo "Pageserver version string: $pageserver_version"
 
@@ -1036,48 +941,78 @@ jobs:
 
   promote-images:
     needs: [ check-permissions, tag, test-images, vm-compute-node-image ]
-    runs-on: ubuntu-latest
-
-    env:
-      VERSIONS: v14 v15 v16
+    runs-on: [ self-hosted, gen3, small ]
+    container: golang:1.19-bullseye
+    # Don't add if-condition here.
+    # The job should always be run because we have dependant other jobs that shouldn't be skipped
 
     steps:
-      - uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.NEON_DOCKERHUB_USERNAME }}
-          password: ${{ secrets.NEON_DOCKERHUB_PASSWORD }}
-
-      - uses: docker/login-action@v3
-        with:
-          registry: 369495373322.dkr.ecr.eu-central-1.amazonaws.com
-          username: ${{ secrets.AWS_ACCESS_KEY_DEV }}
-          password: ${{ secrets.AWS_SECRET_KEY_DEV }}
-
-      - name: Copy vm-compute-node images to ECR
+      - name: Install Crane & ECR helper
         run: |
-          for version in ${VERSIONS}; do
-            docker buildx imagetools create -t 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-${version}:${{ needs.tag.outputs.build-tag }} \
-                                               neondatabase/vm-compute-node-${version}:${{ needs.tag.outputs.build-tag }}
-          done
+          go install github.com/google/go-containerregistry/cmd/crane@31786c6cbb82d6ec4fb8eb79cd9387905130534e # v0.11.0
+          go install github.com/awslabs/amazon-ecr-credential-helper/ecr-login/cli/docker-credential-ecr-login@69c85dc22db6511932bbf119e1a0cc5c90c69a7f # v0.6.0
+
+      - name: Configure ECR login
+        run: |
+          mkdir /github/home/.docker/
+          echo "{\"credsStore\":\"ecr-login\"}" > /github/home/.docker/config.json
+
+      - name: Copy vm-compute-node images to Docker Hub
+        run: |
+          crane pull 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v14:${{needs.tag.outputs.build-tag}} vm-compute-node-v14
+          crane pull 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v15:${{needs.tag.outputs.build-tag}} vm-compute-node-v15
+          crane pull 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v16:${{needs.tag.outputs.build-tag}} vm-compute-node-v16
 
       - name: Add latest tag to images
-        if: github.ref_name == 'main'
+        if: github.ref_name == 'main' || github.ref_name == 'release' || github.ref_name == 'release-proxy'
         run: |
-          for repo in neondatabase 369495373322.dkr.ecr.eu-central-1.amazonaws.com; do
-            docker buildx imagetools create -t $repo/neon:latest \
-                                               $repo/neon:${{ needs.tag.outputs.build-tag }}
+          crane tag 369495373322.dkr.ecr.eu-central-1.amazonaws.com/neon:${{needs.tag.outputs.build-tag}} latest
+          crane tag 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-tools:${{needs.tag.outputs.build-tag}} latest
+          crane tag 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-node-v14:${{needs.tag.outputs.build-tag}} latest
+          crane tag 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v14:${{needs.tag.outputs.build-tag}} latest
+          crane tag 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-node-v15:${{needs.tag.outputs.build-tag}} latest
+          crane tag 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v15:${{needs.tag.outputs.build-tag}} latest
+          crane tag 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-node-v16:${{needs.tag.outputs.build-tag}} latest
+          crane tag 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v16:${{needs.tag.outputs.build-tag}} latest
 
-            docker buildx imagetools create -t $repo/compute-tools:latest \
-                                               $repo/compute-tools:${{ needs.tag.outputs.build-tag }}
+      - name: Push images to production ECR
+        if: github.ref_name == 'main' || github.ref_name == 'release'|| github.ref_name == 'release-proxy'
+        run: |
+          crane copy 369495373322.dkr.ecr.eu-central-1.amazonaws.com/neon:${{needs.tag.outputs.build-tag}} 093970136003.dkr.ecr.eu-central-1.amazonaws.com/neon:latest
+          crane copy 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-tools:${{needs.tag.outputs.build-tag}} 093970136003.dkr.ecr.eu-central-1.amazonaws.com/compute-tools:latest
+          crane copy 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-node-v14:${{needs.tag.outputs.build-tag}} 093970136003.dkr.ecr.eu-central-1.amazonaws.com/compute-node-v14:latest
+          crane copy 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v14:${{needs.tag.outputs.build-tag}} 093970136003.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v14:latest
+          crane copy 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-node-v15:${{needs.tag.outputs.build-tag}} 093970136003.dkr.ecr.eu-central-1.amazonaws.com/compute-node-v15:latest
+          crane copy 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v15:${{needs.tag.outputs.build-tag}} 093970136003.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v15:latest
+          crane copy 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-node-v16:${{needs.tag.outputs.build-tag}} 093970136003.dkr.ecr.eu-central-1.amazonaws.com/compute-node-v16:latest
+          crane copy 369495373322.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v16:${{needs.tag.outputs.build-tag}} 093970136003.dkr.ecr.eu-central-1.amazonaws.com/vm-compute-node-v16:latest
 
-            for version in ${VERSIONS}; do
-              docker buildx imagetools create -t $repo/compute-node-${version}:latest \
-                                                 $repo/compute-node-${version}:${{ needs.tag.outputs.build-tag }}
+      - name: Configure Docker Hub login
+        run: |
+          # ECR Credential Helper & Docker Hub don't work together in config, hence reset
+          echo "" > /github/home/.docker/config.json
+          crane auth login -u ${{ secrets.NEON_DOCKERHUB_USERNAME }} -p ${{ secrets.NEON_DOCKERHUB_PASSWORD }} index.docker.io
 
-              docker buildx imagetools create -t $repo/vm-compute-node-${version}:latest \
-                                                 $repo/vm-compute-node-${version}:${{ needs.tag.outputs.build-tag }}
-            done
-          done
+      - name: Push vm-compute-node to Docker Hub
+        run: |
+          crane push vm-compute-node-v14 neondatabase/vm-compute-node-v14:${{needs.tag.outputs.build-tag}}
+          crane push vm-compute-node-v15 neondatabase/vm-compute-node-v15:${{needs.tag.outputs.build-tag}}
+          crane push vm-compute-node-v16 neondatabase/vm-compute-node-v16:${{needs.tag.outputs.build-tag}}
+
+      - name: Push latest tags to Docker Hub
+        if: github.ref_name == 'main' || github.ref_name == 'release'|| github.ref_name == 'release-proxy'
+        run: |
+          crane tag neondatabase/neon:${{needs.tag.outputs.build-tag}} latest
+          crane tag neondatabase/compute-tools:${{needs.tag.outputs.build-tag}} latest
+          crane tag neondatabase/compute-node-v14:${{needs.tag.outputs.build-tag}} latest
+          crane tag neondatabase/vm-compute-node-v14:${{needs.tag.outputs.build-tag}} latest
+          crane tag neondatabase/compute-node-v15:${{needs.tag.outputs.build-tag}} latest
+          crane tag neondatabase/vm-compute-node-v15:${{needs.tag.outputs.build-tag}} latest
+          crane tag neondatabase/compute-node-v16:${{needs.tag.outputs.build-tag}} latest
+          crane tag neondatabase/vm-compute-node-v16:${{needs.tag.outputs.build-tag}} latest
+
+      - name: Cleanup ECR folder
+        run: rm -rf ~/.ecr
 
   trigger-custom-extensions-build-and-wait:
     needs: [ check-permissions, tag ]
@@ -1198,6 +1133,8 @@ jobs:
               -f deployPreprodRegion=true
 
             gh workflow --repo neondatabase/aws run deploy-prod.yml --ref main \
+              -f deployPgSniRouter=false \
+              -f deployProxy=false \
               -f deployStorage=true \
               -f deployStorageBroker=true \
               -f deployStorageController=true \

.github/workflows/check-build-tools-image.yml

@@ -28,9 +28,7 @@ jobs:
       - name: Get build-tools image tag for the current commit
         id: get-build-tools-tag
         env:
-          # Usually, for COMMIT_SHA, we use `github.event.pull_request.head.sha || github.sha`, but here, even for PRs,
-          # we want to use `github.sha` i.e. point to a phantom merge commit to determine the image tag correctly.
-          COMMIT_SHA: ${{ github.sha }}
+          COMMIT_SHA: ${{ github.event.pull_request.head.sha || github.sha }}
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           LAST_BUILD_TOOLS_SHA=$(

.github/workflows/neon_extra_builds.yml

@@ -136,7 +136,7 @@ jobs:
   check-linux-arm-build:
     needs: [ check-permissions, build-build-tools-image ]
     timeout-minutes: 90
-    runs-on: [ self-hosted, small-arm64 ]
+    runs-on: [ self-hosted, dev, arm64 ]
 
     env:
       # Use release build only, to have less debug info around
@@ -232,20 +232,20 @@ jobs:
 
       - name: Run cargo build
         run: |
-          mold -run cargo build --locked $CARGO_FLAGS $CARGO_FEATURES --bins --tests -j$(nproc)
+          mold -run cargo build --locked $CARGO_FLAGS $CARGO_FEATURES --bins --tests
 
       - name: Run cargo test
         env:
           NEXTEST_RETRIES: 3
         run: |
-          cargo nextest run $CARGO_FEATURES -j$(nproc)
+          cargo nextest run $CARGO_FEATURES
 
           # Run separate tests for real S3
           export ENABLE_REAL_S3_REMOTE_STORAGE=nonempty
           export REMOTE_STORAGE_S3_BUCKET=neon-github-ci-tests
           export REMOTE_STORAGE_S3_REGION=eu-central-1
           # Avoid `$CARGO_FEATURES` since there's no `testing` feature in the e2e tests now
-          cargo nextest run --package remote_storage --test test_real_s3 -j$(nproc)
+          cargo nextest run --package remote_storage --test test_real_s3
 
           # Run separate tests for real Azure Blob Storage
           # XXX: replace region with `eu-central-1`-like region
@@ -255,12 +255,12 @@ jobs:
           export REMOTE_STORAGE_AZURE_CONTAINER="${{ vars.REMOTE_STORAGE_AZURE_CONTAINER }}"
           export REMOTE_STORAGE_AZURE_REGION="${{ vars.REMOTE_STORAGE_AZURE_REGION }}"
           # Avoid `$CARGO_FEATURES` since there's no `testing` feature in the e2e tests now
-          cargo nextest run --package remote_storage --test test_real_azure -j$(nproc)
+          cargo nextest run --package remote_storage --test test_real_azure
 
   check-codestyle-rust-arm:
     needs: [ check-permissions, build-build-tools-image ]
     timeout-minutes: 90
-    runs-on: [ self-hosted, small-arm64 ]
+    runs-on: [ self-hosted, dev, arm64 ]
 
     container:
       image: ${{ needs.build-build-tools-image.outputs.image }}
@@ -269,11 +269,6 @@ jobs:
         password: ${{ secrets.NEON_DOCKERHUB_PASSWORD }}
       options: --init
 
-    strategy:
-      fail-fast: false
-      matrix:
-        build_type: [ debug, release ]
-
     steps:
       - name: Fix git ownership
         run: |
@@ -310,35 +305,31 @@ jobs:
             exit 1
           fi
           echo "CLIPPY_COMMON_ARGS=${CLIPPY_COMMON_ARGS}" >> $GITHUB_ENV
-
       - name: Run cargo clippy (debug)
-        if: matrix.build_type == 'debug'
         run: cargo hack --feature-powerset clippy $CLIPPY_COMMON_ARGS
       - name: Run cargo clippy (release)
-        if: matrix.build_type == 'release'
         run: cargo hack --feature-powerset clippy --release $CLIPPY_COMMON_ARGS
 
       - name: Check documentation generation
-        if: matrix.build_type == 'release'
-        run: cargo doc --workspace --no-deps --document-private-items -j$(nproc)
+        run: cargo doc --workspace --no-deps --document-private-items
         env:
             RUSTDOCFLAGS: "-Dwarnings -Arustdoc::private_intra_doc_links"
 
       # Use `${{ !cancelled() }}` to run quck tests after the longer clippy run
       - name: Check formatting
-        if: ${{ !cancelled() && matrix.build_type == 'release' }}
+        if: ${{ !cancelled() }}
         run: cargo fmt --all -- --check
 
       # https://github.com/facebookincubator/cargo-guppy/tree/bec4e0eb29dcd1faac70b1b5360267fc02bf830e/tools/cargo-hakari#2-keep-the-workspace-hack-up-to-date-in-ci
       - name: Check rust dependencies
-        if: ${{ !cancelled() && matrix.build_type == 'release' }}
+        if: ${{ !cancelled() }}
         run: |
           cargo hakari generate --diff  # workspace-hack Cargo.toml is up-to-date
           cargo hakari manage-deps --dry-run  # all workspace crates depend on workspace-hack
 
       # https://github.com/EmbarkStudios/cargo-deny
       - name: Check rust licenses/bans/advisories/sources
-        if: ${{ !cancelled() && matrix.build_type == 'release' }}
+        if: ${{ !cancelled() }}
         run: cargo deny check
 
   gather-rust-build-stats:
@@ -347,7 +338,7 @@ jobs:
       contains(github.event.pull_request.labels.*.name, 'run-extra-build-stats') ||
       contains(github.event.pull_request.labels.*.name, 'run-extra-build-*') ||
       github.ref_name == 'main'
-    runs-on: [ self-hosted, large ]
+    runs-on: [ self-hosted, gen3, large ]
     container:
       image: ${{ needs.build-build-tools-image.outputs.image }}
       credentials:
@@ -378,7 +369,7 @@ jobs:
         run: make walproposer-lib -j$(nproc)
 
       - name: Produce the build stats
-        run: cargo build --all --release --timings -j$(nproc)
+        run: cargo build --all --release --timings
 
       - name: Upload the build stats
         id: upload-stats

.github/workflows/release.yml

@@ -53,7 +53,7 @@ jobs:
         GH_TOKEN: ${{ secrets.CI_ACCESS_TOKEN }}
       run: |
         cat << EOF > body.md
-          ## Storage & Compute release ${RELEASE_DATE}
+          ## Release ${RELEASE_DATE}
 
           **Please merge this Pull Request using 'Create a merge commit' button**
         EOF

Cargo.toml

@@ -41,26 +41,25 @@ license = "Apache-2.0"
 
 ## All dependency versions, used in the project
 [workspace.dependencies]
-ahash = "0.8"
 anyhow = { version = "1.0", features = ["backtrace"] }
 arc-swap = "1.6"
 async-compression = { version = "0.4.0", features = ["tokio", "gzip", "zstd"] }
 atomic-take = "1.1.0"
-azure_core = "0.19"
-azure_identity = "0.19"
-azure_storage = "0.19"
-azure_storage_blobs = "0.19"
+azure_core = "0.18"
+azure_identity = "0.18"
+azure_storage = "0.18"
+azure_storage_blobs = "0.18"
 flate2 = "1.0.26"
 async-stream = "0.3"
 async-trait = "0.1"
-aws-config = { version = "1.3", default-features = false, features=["rustls"] }
-aws-sdk-s3 = "1.26"
+aws-config = { version = "1.1.4", default-features = false, features=["rustls"] }
+aws-sdk-s3 = "1.14"
 aws-sdk-iam = "1.15.0"
-aws-smithy-async = { version = "1.2.1", default-features = false, features=["rt-tokio"] }
-aws-smithy-types = "1.1.9"
-aws-credential-types = "1.2.0"
-aws-sigv4 = { version = "1.2.1", features = ["sign-http"] }
-aws-types = "1.2.0"
+aws-smithy-async = { version = "1.1.4", default-features = false, features=["rt-tokio"] }
+aws-smithy-types = "1.1.4"
+aws-credential-types = "1.1.4"
+aws-sigv4 = { version = "1.2.0", features = ["sign-http"] }
+aws-types = "1.1.7"
 axum = { version = "0.6.20", features = ["ws"] }
 base64 = "0.13.0"
 bincode = "1.3"
@@ -75,7 +74,6 @@ clap = { version = "4.0", features = ["derive"] }
 comfy-table = "6.1"
 const_format = "0.2"
 crc32c = "0.6"
-crossbeam-deque = "0.8.5"
 crossbeam-utils = "0.8.5"
 dashmap = { version = "5.5.0", features = ["raw-api"] }
 either = "1.8"
@@ -83,14 +81,13 @@ enum-map = "2.4.2"
 enumset = "1.0.12"
 fail = "0.5.0"
 fallible-iterator = "0.2"
-framed-websockets = { version = "0.1.0", git = "https://github.com/neondatabase/framed-websockets" }
 fs2 = "0.4.3"
 futures = "0.3"
 futures-core = "0.3"
 futures-util = "0.3"
 git-version = "0.3"
-hashbrown = "0.14"
-hashlink = "0.9.1"
+hashbrown = "0.13"
+hashlink = "0.8.4"
 hdrhistogram = "7.5.2"
 hex = "0.4"
 hex-literal = "0.4"
@@ -101,8 +98,7 @@ http-types = { version = "2", default-features = false }
 humantime = "2.1"
 humantime-serde = "1.1.1"
 hyper = "0.14"
-tokio-tungstenite = "0.20.0"
-indexmap = "2"
+hyper-tungstenite = "0.13.0"
 inotify = "0.10.2"
 ipnet = "2.9.0"
 itertools = "0.10"
@@ -124,8 +120,8 @@ opentelemetry = "0.20.0"
 opentelemetry-otlp = { version = "0.13.0", default_features=false, features = ["http-proto", "trace", "http", "reqwest-client"] }
 opentelemetry-semantic-conventions = "0.12.0"
 parking_lot = "0.12"
-parquet = { version = "51.0.0", default-features = false, features = ["zstd"] }
-parquet_derive = "51.0.0"
+parquet = { version = "49.0.0", default-features = false, features = ["zstd"] }
+parquet_derive = "49.0.0"
 pbkdf2 = { version = "0.12.1", features = ["simple", "std"] }
 pin-project-lite = "0.2"
 procfs = "0.14"
@@ -134,10 +130,10 @@ prost = "0.11"
 rand = "0.8"
 redis = { version = "0.25.2", features = ["tokio-rustls-comp", "keep-alive"] }
 regex = "1.10.2"
-reqwest = { version = "0.12", default-features = false, features = ["rustls-tls"] }
-reqwest-tracing = { version = "0.5", features = ["opentelemetry_0_20"] }
-reqwest-middleware = "0.3.0"
-reqwest-retry = "0.5"
+reqwest = { version = "0.11", default-features = false, features = ["rustls-tls"] }
+reqwest-tracing = { version = "0.4.7", features = ["opentelemetry_0_20"] }
+reqwest-middleware = "0.2.0"
+reqwest-retry = "0.2.2"
 routerify = "3"
 rpds = "0.13"
 rustc-hash = "1.1.0"
@@ -147,7 +143,7 @@ rustls-split = "0.3"
 scopeguard = "1.1"
 sysinfo = "0.29.2"
 sd-notify = "0.4.1"
-sentry = { version = "0.32", default-features = false, features = ["backtrace", "contexts", "panic", "rustls", "reqwest" ] }
+sentry = { version = "0.31", default-features = false, features = ["backtrace", "contexts", "panic", "rustls", "reqwest" ] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1"
 serde_path_to_error = "0.1"
@@ -161,8 +157,7 @@ socket2 = "0.5"
 strum = "0.24"
 strum_macros = "0.24"
 "subtle"  = "2.5.0"
-# Our PR https://github.com/nical/rust_debug/pull/4 has been merged but no new version released yet
-svg_fmt = { git = "https://github.com/nical/rust_debug", rev = "28a7d96eecff2f28e75b1ea09f2d499a60d0e3b4" }
+svg_fmt = "0.4.1"
 sync_wrapper = "0.1.2"
 tar = "0.4"
 task-local-extensions = "0.1.4"
@@ -181,11 +176,10 @@ tokio-util = { version = "0.7.10", features = ["io", "rt"] }
 toml = "0.7"
 toml_edit = "0.19"
 tonic = {version = "0.9", features = ["tls", "tls-roots"]}
-tower-service = "0.3.2"
 tracing = "0.1"
 tracing-error = "0.2.0"
-tracing-opentelemetry = "0.21.0"
-tracing-subscriber = { version = "0.3", default_features = false, features = ["smallvec", "fmt", "tracing-log", "std", "env-filter", "json", "ansi"] }
+tracing-opentelemetry = "0.20.0"
+tracing-subscriber = { version = "0.3", default_features = false, features = ["smallvec", "fmt", "tracing-log", "std", "env-filter", "json"] }
 twox-hash = { version = "1.6.3", default-features = false }
 url = "2.2"
 urlencoding = "2.1"
@@ -246,8 +240,8 @@ tonic-build = "0.9"
 tokio-postgres = { git = "https://github.com/neondatabase/rust-postgres.git", branch="neon" }
 
 # bug fixes for UUID
-parquet = { git = "https://github.com/apache/arrow-rs", branch = "master" }
-parquet_derive = { git = "https://github.com/apache/arrow-rs", branch = "master" }
+parquet = { git = "https://github.com/neondatabase/arrow-rs", branch = "neon-fix-bugs" }
+parquet_derive = { git = "https://github.com/neondatabase/arrow-rs", branch = "neon-fix-bugs" }
 
 ################# Binary contents sections
 

Dockerfile.build-tools

@@ -65,7 +65,7 @@ RUN curl -sL "https://github.com/peak/s5cmd/releases/download/v${S5CMD_VERSION}/
     && mv s5cmd /usr/local/bin/s5cmd
 
 # LLVM
-ENV LLVM_VERSION=18
+ENV LLVM_VERSION=17
 RUN curl -fsSL 'https://apt.llvm.org/llvm-snapshot.gpg.key' | apt-key add - \
     && echo "deb http://apt.llvm.org/bullseye/ llvm-toolchain-bullseye-${LLVM_VERSION} main" > /etc/apt/sources.list.d/llvm.stable.list \
     && apt update \
@@ -87,7 +87,7 @@ RUN curl "https://awscli.amazonaws.com/awscli-exe-linux-$(uname -m).zip" -o "aws
     && rm awscliv2.zip
 
 # Mold: A Modern Linker
-ENV MOLD_VERSION v2.31.0
+ENV MOLD_VERSION v2.4.0
 RUN set -e \
     && git clone https://github.com/rui314/mold.git \
     && mkdir mold/build \
@@ -141,7 +141,7 @@ WORKDIR /home/nonroot
 
 # Rust
 # Please keep the version of llvm (installed above) in sync with rust llvm (`rustc --version --verbose | grep LLVM`)
-ENV RUSTC_VERSION=1.78.0
+ENV RUSTC_VERSION=1.77.0
 ENV RUSTUP_HOME="/home/nonroot/.rustup"
 ENV PATH="/home/nonroot/.cargo/bin:${PATH}"
 RUN curl -sSO https://static.rust-lang.org/rustup/dist/$(uname -m)-unknown-linux-gnu/rustup-init && whoami && \

Dockerfile.compute-node

@@ -241,17 +241,11 @@ RUN wget https://github.com/df7cb/postgresql-unit/archive/refs/tags/7.7.tar.gz -
 FROM build-deps AS vector-pg-build
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/
 
-COPY patches/pgvector.patch /pgvector.patch
-
-# By default, pgvector Makefile uses `-march=native`. We don't want that, 
-# because we build the images on different machines than where we run them.
-# Pass OPTFLAGS="" to remove it.
-RUN wget https://github.com/pgvector/pgvector/archive/refs/tags/v0.7.0.tar.gz -O pgvector.tar.gz && \
-    echo "1b5503a35c265408b6eb282621c5e1e75f7801afc04eecb950796cfee2e3d1d8 pgvector.tar.gz" | sha256sum --check && \
+RUN wget https://github.com/pgvector/pgvector/archive/refs/tags/v0.5.1.tar.gz -O pgvector.tar.gz && \
+    echo "cc7a8e034a96e30a819911ac79d32f6bc47bdd1aa2de4d7d4904e26b83209dc8 pgvector.tar.gz" | sha256sum --check && \
     mkdir pgvector-src && cd pgvector-src && tar xvzf ../pgvector.tar.gz --strip-components=1 -C . && \
-    patch -p1 < /pgvector.patch && \
-    make -j $(getconf _NPROCESSORS_ONLN) OPTFLAGS="" PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
-    make -j $(getconf _NPROCESSORS_ONLN) OPTFLAGS="" install PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
+    make -j $(getconf _NPROCESSORS_ONLN) PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
+    make -j $(getconf _NPROCESSORS_ONLN) install PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
     echo 'trusted = true' >> /usr/local/pgsql/share/extension/vector.control
 
 #########################################################################################

Makefile

@@ -25,16 +25,14 @@ ifeq ($(UNAME_S),Linux)
 	# Seccomp BPF is only available for Linux
 	PG_CONFIGURE_OPTS += --with-libseccomp
 else ifeq ($(UNAME_S),Darwin)
-	ifndef DISABLE_HOMEBREW
-		# macOS with brew-installed openssl requires explicit paths
-		# It can be configured with OPENSSL_PREFIX variable
-		OPENSSL_PREFIX ?= $(shell brew --prefix openssl@3)
-		PG_CONFIGURE_OPTS += --with-includes=$(OPENSSL_PREFIX)/include --with-libraries=$(OPENSSL_PREFIX)/lib
-		PG_CONFIGURE_OPTS += PKG_CONFIG_PATH=$(shell brew --prefix icu4c)/lib/pkgconfig
-		# macOS already has bison and flex in the system, but they are old and result in postgres-v14 target failure
-		# brew formulae are keg-only and not symlinked into HOMEBREW_PREFIX, force their usage
-		EXTRA_PATH_OVERRIDES += $(shell brew --prefix bison)/bin/:$(shell brew --prefix flex)/bin/:
-	endif
+	# macOS with brew-installed openssl requires explicit paths
+	# It can be configured with OPENSSL_PREFIX variable
+	OPENSSL_PREFIX ?= $(shell brew --prefix openssl@3)
+	PG_CONFIGURE_OPTS += --with-includes=$(OPENSSL_PREFIX)/include --with-libraries=$(OPENSSL_PREFIX)/lib
+	PG_CONFIGURE_OPTS += PKG_CONFIG_PATH=$(shell brew --prefix icu4c)/lib/pkgconfig
+	# macOS already has bison and flex in the system, but they are old and result in postgres-v14 target failure
+	# brew formulae are keg-only and not symlinked into HOMEBREW_PREFIX, force their usage
+	EXTRA_PATH_OVERRIDES += $(shell brew --prefix bison)/bin/:$(shell brew --prefix flex)/bin/:
 endif
 
 # Use -C option so that when PostgreSQL "make install" installs the
@@ -81,14 +79,11 @@ $(POSTGRES_INSTALL_DIR)/build/%/config.status:
 		echo "'git submodule update --init --recursive --depth 2 --progress .' in project root.\n"; \
 		exit 1; }
 	mkdir -p $(POSTGRES_INSTALL_DIR)/build/$*
-
-	VERSION=$*; \
-	EXTRA_VERSION=$$(cd $(ROOT_PROJECT_DIR)/vendor/postgres-$$VERSION && git rev-parse HEAD); \
-	(cd $(POSTGRES_INSTALL_DIR)/build/$$VERSION && \
-	env PATH="$(EXTRA_PATH_OVERRIDES):$$PATH" $(ROOT_PROJECT_DIR)/vendor/postgres-$$VERSION/configure \
+	(cd $(POSTGRES_INSTALL_DIR)/build/$* && \
+	env PATH="$(EXTRA_PATH_OVERRIDES):$$PATH" $(ROOT_PROJECT_DIR)/vendor/postgres-$*/configure \
 		CFLAGS='$(PG_CFLAGS)' \
-		$(PG_CONFIGURE_OPTS) --with-extra-version=" ($$EXTRA_VERSION)" \
-		--prefix=$(abspath $(POSTGRES_INSTALL_DIR))/$$VERSION > configure.log)
+		$(PG_CONFIGURE_OPTS) \
+		--prefix=$(abspath $(POSTGRES_INSTALL_DIR))/$* > configure.log)
 
 # nicer alias to run 'configure'
 # Note: I've been unable to use templates for this part of our configuration.

README.md

@@ -1,6 +1,4 @@
-[![Neon](https://github.com/neondatabase/neon/assets/11527560/f15a17f0-836e-40c5-b35d-030606a6b660)](https://neon.tech)
-
-
+[![Neon](https://user-images.githubusercontent.com/13738772/236813940-dcfdcb5b-69d3-449b-a686-013febe834d4.png)](https://neon.tech)
 
 # Neon
 

compute_tools/Cargo.toml

@@ -27,12 +27,10 @@ reqwest = { workspace = true, features = ["json"] }
 tokio = { workspace = true, features = ["rt", "rt-multi-thread"] }
 tokio-postgres.workspace = true
 tokio-util.workspace = true
-tokio-stream.workspace = true
 tracing.workspace = true
 tracing-opentelemetry.workspace = true
 tracing-subscriber.workspace = true
 tracing-utils.workspace = true
-thiserror.workspace = true
 url.workspace = true
 
 compute_api.workspace = true

compute_tools/src/bin/compute_ctl.rs

@@ -47,11 +47,10 @@ use chrono::Utc;
 use clap::Arg;
 use signal_hook::consts::{SIGQUIT, SIGTERM};
 use signal_hook::{consts::SIGINT, iterator::Signals};
-use tracing::{error, info, warn};
+use tracing::{error, info};
 use url::Url;
 
 use compute_api::responses::ComputeStatus;
-use compute_api::spec::ComputeSpec;
 
 use compute_tools::compute::{
     forward_termination_signal, ComputeNode, ComputeState, ParsedSpec, PG_PID,
@@ -63,41 +62,12 @@ use compute_tools::logger::*;
 use compute_tools::monitor::launch_monitor;
 use compute_tools::params::*;
 use compute_tools::spec::*;
-use compute_tools::swap::resize_swap;
 
 // this is an arbitrary build tag. Fine as a default / for testing purposes
 // in-case of not-set environment var
 const BUILD_TAG_DEFAULT: &str = "latest";
 
 fn main() -> Result<()> {
-    let (build_tag, clap_args) = init()?;
-
-    let (pg_handle, start_pg_result) = {
-        // Enter startup tracing context
-        let _startup_context_guard = startup_context_from_env();
-
-        let cli_args = process_cli(&clap_args)?;
-
-        let cli_spec = try_spec_from_cli(&clap_args, &cli_args)?;
-
-        let wait_spec_result = wait_spec(build_tag, cli_args, cli_spec)?;
-
-        start_postgres(&clap_args, wait_spec_result)?
-
-        // Startup is finished, exit the startup tracing span
-    };
-
-    // PostgreSQL is now running, if startup was successful. Wait until it exits.
-    let wait_pg_result = wait_postgres(pg_handle)?;
-
-    let delay_exit = cleanup_after_postgres_exit(start_pg_result)?;
-
-    maybe_delay_exit(delay_exit);
-
-    deinit_and_exit(wait_pg_result);
-}
-
-fn init() -> Result<(String, clap::ArgMatches)> {
     init_tracing_and_logging(DEFAULT_LOG_LEVEL)?;
 
     let mut signals = Signals::new([SIGINT, SIGTERM, SIGQUIT])?;
@@ -112,15 +82,9 @@ fn init() -> Result<(String, clap::ArgMatches)> {
         .to_string();
     info!("build_tag: {build_tag}");
 
-    Ok((build_tag, cli().get_matches()))
-}
-
-fn process_cli(matches: &clap::ArgMatches) -> Result<ProcessCliResult> {
-    let pgbin_default = "postgres";
-    let pgbin = matches
-        .get_one::<String>("pgbin")
-        .map(|s| s.as_str())
-        .unwrap_or(pgbin_default);
+    let matches = cli().get_matches();
+    let pgbin_default = String::from("postgres");
+    let pgbin = matches.get_one::<String>("pgbin").unwrap_or(&pgbin_default);
 
     let ext_remote_storage = matches
         .get_one::<String>("remote-ext-config")
@@ -146,32 +110,7 @@ fn process_cli(matches: &clap::ArgMatches) -> Result<ProcessCliResult> {
         .expect("Postgres connection string is required");
     let spec_json = matches.get_one::<String>("spec");
     let spec_path = matches.get_one::<String>("spec-path");
-    let resize_swap_on_bind = matches.get_flag("resize-swap-on-bind");
 
-    Ok(ProcessCliResult {
-        connstr,
-        pgdata,
-        pgbin,
-        ext_remote_storage,
-        http_port,
-        spec_json,
-        spec_path,
-        resize_swap_on_bind,
-    })
-}
-
-struct ProcessCliResult<'clap> {
-    connstr: &'clap str,
-    pgdata: &'clap str,
-    pgbin: &'clap str,
-    ext_remote_storage: Option<&'clap str>,
-    http_port: u16,
-    spec_json: Option<&'clap String>,
-    spec_path: Option<&'clap String>,
-    resize_swap_on_bind: bool,
-}
-
-fn startup_context_from_env() -> Option<opentelemetry::ContextGuard> {
     // Extract OpenTelemetry context for the startup actions from the
     // TRACEPARENT and TRACESTATE env variables, and attach it to the current
     // tracing context.
@@ -208,7 +147,7 @@ fn startup_context_from_env() -> Option<opentelemetry::ContextGuard> {
     if let Ok(val) = std::env::var("TRACESTATE") {
         startup_tracing_carrier.insert("tracestate".to_string(), val);
     }
-    if !startup_tracing_carrier.is_empty() {
+    let startup_context_guard = if !startup_tracing_carrier.is_empty() {
         use opentelemetry::propagation::TextMapPropagator;
         use opentelemetry::sdk::propagation::TraceContextPropagator;
         let guard = TraceContextPropagator::new()
@@ -218,17 +157,8 @@ fn startup_context_from_env() -> Option<opentelemetry::ContextGuard> {
         Some(guard)
     } else {
         None
-    }
-}
+    };
 
-fn try_spec_from_cli(
-    matches: &clap::ArgMatches,
-    ProcessCliResult {
-        spec_json,
-        spec_path,
-        ..
-    }: &ProcessCliResult,
-) -> Result<CliSpecParams> {
     let compute_id = matches.get_one::<String>("compute-id");
     let control_plane_uri = matches.get_one::<String>("control-plane-uri");
 
@@ -269,34 +199,6 @@ fn try_spec_from_cli(
         }
     };
 
-    Ok(CliSpecParams {
-        spec,
-        live_config_allowed,
-    })
-}
-
-struct CliSpecParams {
-    /// If a spec was provided via CLI or file, the [`ComputeSpec`]
-    spec: Option<ComputeSpec>,
-    live_config_allowed: bool,
-}
-
-fn wait_spec(
-    build_tag: String,
-    ProcessCliResult {
-        connstr,
-        pgdata,
-        pgbin,
-        ext_remote_storage,
-        resize_swap_on_bind,
-        http_port,
-        ..
-    }: ProcessCliResult,
-    CliSpecParams {
-        spec,
-        live_config_allowed,
-    }: CliSpecParams,
-) -> Result<WaitSpecResult> {
     let mut new_state = ComputeState::new();
     let spec_set;
 
@@ -324,17 +226,19 @@ fn wait_spec(
 
     // If this is a pooled VM, prewarm before starting HTTP server and becoming
     // available for binding. Prewarming helps Postgres start quicker later,
-    // because QEMU will already have its memory allocated from the host, and
+    // because QEMU will already have it's memory allocated from the host, and
     // the necessary binaries will already be cached.
     if !spec_set {
         compute.prewarm_postgres()?;
     }
 
-    // Launch http service first, so that we can serve control-plane requests
-    // while configuration is still in progress.
+    // Launch http service first, so we were able to serve control-plane
+    // requests, while configuration is still in progress.
     let _http_handle =
         launch_http_server(http_port, &compute).expect("cannot launch http endpoint thread");
 
+    let extension_server_port: u16 = http_port;
+
     if !spec_set {
         // No spec provided, hang waiting for it.
         info!("no compute spec provided, waiting");
@@ -349,45 +253,21 @@ fn wait_spec(
                 break;
             }
         }
-
-        // Record for how long we slept waiting for the spec.
-        let now = Utc::now();
-        state.metrics.wait_for_spec_ms = now
-            .signed_duration_since(state.start_time)
-            .to_std()
-            .unwrap()
-            .as_millis() as u64;
-
-        // Reset start time, so that the total startup time that is calculated later will
-        // not include the time that we waited for the spec.
-        state.start_time = now;
     }
 
-    Ok(WaitSpecResult {
-        compute,
-        http_port,
-        resize_swap_on_bind,
-    })
-}
-
-struct WaitSpecResult {
-    compute: Arc<ComputeNode>,
-    // passed through from ProcessCliResult
-    http_port: u16,
-    resize_swap_on_bind: bool,
-}
-
-fn start_postgres(
-    // need to allow unused because `matches` is only used if target_os = "linux"
-    #[allow(unused_variables)] matches: &clap::ArgMatches,
-    WaitSpecResult {
-        compute,
-        http_port,
-        resize_swap_on_bind,
-    }: WaitSpecResult,
-) -> Result<(Option<PostgresHandle>, StartPostgresResult)> {
     // We got all we need, update the state.
     let mut state = compute.state.lock().unwrap();
+
+    // Record for how long we slept waiting for the spec.
+    state.metrics.wait_for_spec_ms = Utc::now()
+        .signed_duration_since(state.start_time)
+        .to_std()
+        .unwrap()
+        .as_millis() as u64;
+    // Reset start time to the actual start of the configuration, so that
+    // total startup time was properly measured at the end.
+    state.start_time = Utc::now();
+
     state.status = ComputeStatus::Init;
     compute.state_changed.notify_all();
 
@@ -395,72 +275,33 @@ fn start_postgres(
         "running compute with features: {:?}",
         state.pspec.as_ref().unwrap().spec.features
     );
-    // before we release the mutex, fetch the swap size (if any) for later.
-    let swap_size_bytes = state.pspec.as_ref().unwrap().spec.swap_size_bytes;
     drop(state);
 
     // Launch remaining service threads
     let _monitor_handle = launch_monitor(&compute);
     let _configurator_handle = launch_configurator(&compute);
 
-    let mut prestartup_failed = false;
-    let mut delay_exit = false;
-
-    // Resize swap to the desired size if the compute spec says so
-    if let (Some(size_bytes), true) = (swap_size_bytes, resize_swap_on_bind) {
-        // To avoid 'swapoff' hitting postgres startup, we need to run resize-swap to completion
-        // *before* starting postgres.
-        //
-        // In theory, we could do this asynchronously if SkipSwapon was enabled for VMs, but this
-        // carries a risk of introducing hard-to-debug issues - e.g. if postgres sometimes gets
-        // OOM-killed during startup because swap wasn't available yet.
-        match resize_swap(size_bytes) {
-            Ok(()) => {
-                let size_gib = size_bytes as f32 / (1 << 20) as f32; // just for more coherent display.
-                info!(%size_bytes, %size_gib, "resized swap");
-            }
-            Err(err) => {
-                let err = err.context("failed to resize swap");
-                error!("{err:#}");
-
-                // Mark compute startup as failed; don't try to start postgres, and report this
-                // error to the control plane when it next asks.
-                prestartup_failed = true;
-                let mut state = compute.state.lock().unwrap();
-                state.error = Some(format!("{err:?}"));
-                state.status = ComputeStatus::Failed;
-                compute.state_changed.notify_all();
-                delay_exit = true;
-            }
-        }
-    }
-
-    let extension_server_port: u16 = http_port;
-
     // Start Postgres
-    let mut pg = None;
-    if !prestartup_failed {
-        pg = match compute.start_compute(extension_server_port) {
-            Ok(pg) => Some(pg),
-            Err(err) => {
-                error!("could not start the compute node: {:#}", err);
-                let mut state = compute.state.lock().unwrap();
-                state.error = Some(format!("{:?}", err));
-                state.status = ComputeStatus::Failed;
-                // Notify others that Postgres failed to start. In case of configuring the
-                // empty compute, it's likely that API handler is still waiting for compute
-                // state change. With this we will notify it that compute is in Failed state,
-                // so control plane will know about it earlier and record proper error instead
-                // of timeout.
-                compute.state_changed.notify_all();
-                drop(state); // unlock
-                delay_exit = true;
-                None
-            }
-        };
-    } else {
-        warn!("skipping postgres startup because pre-startup step failed");
-    }
+    let mut delay_exit = false;
+    let mut exit_code = None;
+    let pg = match compute.start_compute(extension_server_port) {
+        Ok(pg) => Some(pg),
+        Err(err) => {
+            error!("could not start the compute node: {:#}", err);
+            let mut state = compute.state.lock().unwrap();
+            state.error = Some(format!("{:?}", err));
+            state.status = ComputeStatus::Failed;
+            // Notify others that Postgres failed to start. In case of configuring the
+            // empty compute, it's likely that API handler is still waiting for compute
+            // state change. With this we will notify it that compute is in Failed state,
+            // so control plane will know about it earlier and record proper error instead
+            // of timeout.
+            compute.state_changed.notify_all();
+            drop(state); // unlock
+            delay_exit = true;
+            None
+        }
+    };
 
     // Start the vm-monitor if directed to. The vm-monitor only runs on linux
     // because it requires cgroups.
@@ -493,7 +334,7 @@ fn start_postgres(
             // This token is used internally by the monitor to clean up all threads
             let token = CancellationToken::new();
 
-            let vm_monitor = rt.as_ref().map(|rt| {
+            let vm_monitor = &rt.as_ref().map(|rt| {
                 rt.spawn(vm_monitor::start(
                     Box::leak(Box::new(vm_monitor::Args {
                         cgroup: cgroup.cloned(),
@@ -506,41 +347,12 @@ fn start_postgres(
         }
     }
 
-    Ok((
-        pg,
-        StartPostgresResult {
-            delay_exit,
-            compute,
-            #[cfg(target_os = "linux")]
-            rt,
-            #[cfg(target_os = "linux")]
-            token,
-            #[cfg(target_os = "linux")]
-            vm_monitor,
-        },
-    ))
-}
-
-type PostgresHandle = (std::process::Child, std::thread::JoinHandle<()>);
-
-struct StartPostgresResult {
-    delay_exit: bool,
-    // passed through from WaitSpecResult
-    compute: Arc<ComputeNode>,
-
-    #[cfg(target_os = "linux")]
-    rt: Option<tokio::runtime::Runtime>,
-    #[cfg(target_os = "linux")]
-    token: tokio_util::sync::CancellationToken,
-    #[cfg(target_os = "linux")]
-    vm_monitor: Option<tokio::task::JoinHandle<Result<()>>>,
-}
-
-fn wait_postgres(pg: Option<PostgresHandle>) -> Result<WaitPostgresResult> {
     // Wait for the child Postgres process forever. In this state Ctrl+C will
     // propagate to Postgres and it will be shut down as well.
-    let mut exit_code = None;
     if let Some((mut pg, logs_handle)) = pg {
+        // Startup is finished, exit the startup tracing span
+        drop(startup_context_guard);
+
         let ecode = pg
             .wait()
             .expect("failed to start waiting on Postgres process");
@@ -555,25 +367,6 @@ fn wait_postgres(pg: Option<PostgresHandle>) -> Result<WaitPostgresResult> {
         exit_code = ecode.code()
     }
 
-    Ok(WaitPostgresResult { exit_code })
-}
-
-struct WaitPostgresResult {
-    exit_code: Option<i32>,
-}
-
-fn cleanup_after_postgres_exit(
-    StartPostgresResult {
-        mut delay_exit,
-        compute,
-        #[cfg(target_os = "linux")]
-        vm_monitor,
-        #[cfg(target_os = "linux")]
-        token,
-        #[cfg(target_os = "linux")]
-        rt,
-    }: StartPostgresResult,
-) -> Result<bool> {
     // Terminate the vm_monitor so it releases the file watcher on
     // /sys/fs/cgroup/neon-postgres.
     // Note: the vm-monitor only runs on linux because it requires cgroups.
@@ -615,19 +408,13 @@ fn cleanup_after_postgres_exit(
         error!("error while checking for core dumps: {err:?}");
     }
 
-    Ok(delay_exit)
-}
-
-fn maybe_delay_exit(delay_exit: bool) {
     // If launch failed, keep serving HTTP requests for a while, so the cloud
     // control plane can get the actual error.
     if delay_exit {
         info!("giving control plane 30s to collect the error before shutdown");
         thread::sleep(Duration::from_secs(30));
     }
-}
 
-fn deinit_and_exit(WaitPostgresResult { exit_code }: WaitPostgresResult) -> ! {
     // Shutdown trace pipeline gracefully, so that it has a chance to send any
     // pending traces before we exit. Shutting down OTEL tracing provider may
     // hang for quite some time, see, for example:
@@ -739,11 +526,6 @@ fn cli() -> clap::Command {
                 )
                 .value_name("FILECACHE_CONNSTR"),
         )
-        .arg(
-            Arg::new("resize-swap-on-bind")
-                .long("resize-swap-on-bind")
-                .action(clap::ArgAction::SetTrue),
-        )
 }
 
 /// When compute_ctl is killed, send also termination signal to sync-safekeepers

compute_tools/src/catalog.rs

@@ -1,116 +0,0 @@
-use compute_api::{
-    responses::CatalogObjects,
-    spec::{Database, Role},
-};
-use futures::Stream;
-use postgres::{Client, NoTls};
-use std::{path::Path, process::Stdio, result::Result, sync::Arc};
-use tokio::{
-    io::{AsyncBufReadExt, BufReader},
-    process::Command,
-    task,
-};
-use tokio_stream::{self as stream, StreamExt};
-use tokio_util::codec::{BytesCodec, FramedRead};
-use tracing::warn;
-
-use crate::{
-    compute::ComputeNode,
-    pg_helpers::{get_existing_dbs, get_existing_roles},
-};
-
-pub async fn get_dbs_and_roles(compute: &Arc<ComputeNode>) -> anyhow::Result<CatalogObjects> {
-    let connstr = compute.connstr.clone();
-    task::spawn_blocking(move || {
-        let mut client = Client::connect(connstr.as_str(), NoTls)?;
-        let roles: Vec<Role>;
-        {
-            let mut xact = client.transaction()?;
-            roles = get_existing_roles(&mut xact)?;
-        }
-        let databases: Vec<Database> = get_existing_dbs(&mut client)?.values().cloned().collect();
-
-        Ok(CatalogObjects { roles, databases })
-    })
-    .await?
-}
-
-#[derive(Debug, thiserror::Error)]
-pub enum SchemaDumpError {
-    #[error("Database does not exist.")]
-    DatabaseDoesNotExist,
-    #[error("Failed to execute pg_dump.")]
-    IO(#[from] std::io::Error),
-}
-
-// It uses the pg_dump utility to dump the schema of the specified database.
-// The output is streamed back to the caller and supposed to be streamed via HTTP.
-//
-// Before return the result with the output, it checks that pg_dump produced any output.
-// If not, it tries to parse the stderr output to determine if the database does not exist
-// and special error is returned.
-//
-// To make sure that the process is killed when the caller drops the stream, we use tokio kill_on_drop feature.
-pub async fn get_database_schema(
-    compute: &Arc<ComputeNode>,
-    dbname: &str,
-) -> Result<impl Stream<Item = Result<bytes::Bytes, std::io::Error>>, SchemaDumpError> {
-    let pgbin = &compute.pgbin;
-    let basepath = Path::new(pgbin).parent().unwrap();
-    let pgdump = basepath.join("pg_dump");
-    let mut connstr = compute.connstr.clone();
-    connstr.set_path(dbname);
-    let mut cmd = Command::new(pgdump)
-        .arg("--schema-only")
-        .arg(connstr.as_str())
-        .stdout(Stdio::piped())
-        .stderr(Stdio::piped())
-        .kill_on_drop(true)
-        .spawn()?;
-
-    let stdout = cmd.stdout.take().ok_or_else(|| {
-        std::io::Error::new(std::io::ErrorKind::Other, "Failed to capture stdout.")
-    })?;
-
-    let stderr = cmd.stderr.take().ok_or_else(|| {
-        std::io::Error::new(std::io::ErrorKind::Other, "Failed to capture stderr.")
-    })?;
-
-    let mut stdout_reader = FramedRead::new(stdout, BytesCodec::new());
-    let stderr_reader = BufReader::new(stderr);
-
-    let first_chunk = match stdout_reader.next().await {
-        Some(Ok(bytes)) if !bytes.is_empty() => bytes,
-        Some(Err(e)) => {
-            return Err(SchemaDumpError::IO(e));
-        }
-        _ => {
-            let mut lines = stderr_reader.lines();
-            if let Some(line) = lines.next_line().await? {
-                if line.contains(&format!("FATAL:  database \"{}\" does not exist", dbname)) {
-                    return Err(SchemaDumpError::DatabaseDoesNotExist);
-                }
-                warn!("pg_dump stderr: {}", line)
-            }
-            tokio::spawn(async move {
-                while let Ok(Some(line)) = lines.next_line().await {
-                    warn!("pg_dump stderr: {}", line)
-                }
-            });
-
-            return Err(SchemaDumpError::IO(std::io::Error::new(
-                std::io::ErrorKind::Other,
-                "failed to start pg_dump",
-            )));
-        }
-    };
-    let initial_stream = stream::once(Ok(first_chunk.freeze()));
-    // Consume stderr and log warnings
-    tokio::spawn(async move {
-        let mut lines = stderr_reader.lines();
-        while let Ok(Some(line)) = lines.next_line().await {
-            warn!("pg_dump stderr: {}", line)
-        }
-    });
-    Ok(initial_stream.chain(stdout_reader.map(|res| res.map(|b| b.freeze()))))
-}

compute_tools/src/compute.rs

@@ -818,15 +818,9 @@ impl ComputeNode {
                         Client::connect(zenith_admin_connstr.as_str(), NoTls)
                             .context("broken cloud_admin credential: tried connecting with cloud_admin but could not authenticate, and zenith_admin does not work either")?;
                     // Disable forwarding so that users don't get a cloud_admin role
-
-                    let mut func = || {
-                        client.simple_query("SET neon.forward_ddl = false")?;
-                        client.simple_query("CREATE USER cloud_admin WITH SUPERUSER")?;
-                        client.simple_query("GRANT zenith_admin TO cloud_admin")?;
-                        Ok::<_, anyhow::Error>(())
-                    };
-                    func().context("apply_config setup cloud_admin")?;
-
+                    client.simple_query("SET neon.forward_ddl = false")?;
+                    client.simple_query("CREATE USER cloud_admin WITH SUPERUSER")?;
+                    client.simple_query("GRANT zenith_admin TO cloud_admin")?;
                     drop(client);
 
                     // reconnect with connstring with expected name
@@ -838,29 +832,24 @@ impl ComputeNode {
         };
 
         // Disable DDL forwarding because control plane already knows about these roles/databases.
-        client
-            .simple_query("SET neon.forward_ddl = false")
-            .context("apply_config SET neon.forward_ddl = false")?;
+        client.simple_query("SET neon.forward_ddl = false")?;
 
         // Proceed with post-startup configuration. Note, that order of operations is important.
         let spec = &compute_state.pspec.as_ref().expect("spec must be set").spec;
-        create_neon_superuser(spec, &mut client).context("apply_config create_neon_superuser")?;
-        cleanup_instance(&mut client).context("apply_config cleanup_instance")?;
-        handle_roles(spec, &mut client).context("apply_config handle_roles")?;
-        handle_databases(spec, &mut client).context("apply_config handle_databases")?;
-        handle_role_deletions(spec, connstr.as_str(), &mut client)
-            .context("apply_config handle_role_deletions")?;
+        create_neon_superuser(spec, &mut client)?;
+        cleanup_instance(&mut client)?;
+        handle_roles(spec, &mut client)?;
+        handle_databases(spec, &mut client)?;
+        handle_role_deletions(spec, connstr.as_str(), &mut client)?;
         handle_grants(
             spec,
             &mut client,
             connstr.as_str(),
             self.has_feature(ComputeFeature::AnonExtension),
-        )
-        .context("apply_config handle_grants")?;
-        handle_extensions(spec, &mut client).context("apply_config handle_extensions")?;
-        handle_extension_neon(&mut client).context("apply_config handle_extension_neon")?;
-        create_availability_check_data(&mut client)
-            .context("apply_config create_availability_check_data")?;
+        )?;
+        handle_extensions(spec, &mut client)?;
+        handle_extension_neon(&mut client)?;
+        create_availability_check_data(&mut client)?;
 
         // 'Close' connection
         drop(client);
@@ -868,7 +857,7 @@ impl ComputeNode {
         // Run migrations separately to not hold up cold starts
         thread::spawn(move || {
             let mut client = Client::connect(connstr.as_str(), NoTls)?;
-            handle_migrations(&mut client).context("apply_config handle_migrations")
+            handle_migrations(&mut client)
         });
         Ok(())
     }

compute_tools/src/http/api.rs

@@ -5,21 +5,17 @@ use std::net::SocketAddr;
 use std::sync::Arc;
 use std::thread;
 
-use crate::catalog::SchemaDumpError;
-use crate::catalog::{get_database_schema, get_dbs_and_roles};
 use crate::compute::forward_termination_signal;
 use crate::compute::{ComputeNode, ComputeState, ParsedSpec};
 use compute_api::requests::ConfigurationRequest;
 use compute_api::responses::{ComputeStatus, ComputeStatusResponse, GenericAPIError};
 
 use anyhow::Result;
-use hyper::header::CONTENT_TYPE;
 use hyper::service::{make_service_fn, service_fn};
 use hyper::{Body, Method, Request, Response, Server, StatusCode};
 use tokio::task;
 use tracing::{error, info, warn};
 use tracing_utils::http::OtelName;
-use utils::http::request::must_get_query_param;
 
 fn status_response_from_state(state: &ComputeState) -> ComputeStatusResponse {
     ComputeStatusResponse {
@@ -137,34 +133,6 @@ async fn routes(req: Request<Body>, compute: &Arc<ComputeNode>) -> Response<Body
             }
         }
 
-        (&Method::GET, "/dbs_and_roles") => {
-            info!("serving /dbs_and_roles GET request",);
-            match get_dbs_and_roles(compute).await {
-                Ok(res) => render_json(Body::from(serde_json::to_string(&res).unwrap())),
-                Err(_) => {
-                    render_json_error("can't get dbs and roles", StatusCode::INTERNAL_SERVER_ERROR)
-                }
-            }
-        }
-
-        (&Method::GET, "/database_schema") => {
-            let database = match must_get_query_param(&req, "database") {
-                Err(e) => return e.into_response(),
-                Ok(database) => database,
-            };
-            info!("serving /database_schema GET request with database: {database}",);
-            match get_database_schema(compute, &database).await {
-                Ok(res) => render_plain(Body::wrap_stream(res)),
-                Err(SchemaDumpError::DatabaseDoesNotExist) => {
-                    render_json_error("database does not exist", StatusCode::NOT_FOUND)
-                }
-                Err(e) => {
-                    error!("can't get schema dump: {}", e);
-                    render_json_error("can't get schema dump", StatusCode::INTERNAL_SERVER_ERROR)
-                }
-            }
-        }
-
         // download extension files from remote extension storage on demand
         (&Method::POST, route) if route.starts_with("/extension_server/") => {
             info!("serving {:?} POST request", route);
@@ -335,25 +303,10 @@ fn render_json_error(e: &str, status: StatusCode) -> Response<Body> {
     };
     Response::builder()
         .status(status)
-        .header(CONTENT_TYPE, "application/json")
         .body(Body::from(serde_json::to_string(&error).unwrap()))
         .unwrap()
 }
 
-fn render_json(body: Body) -> Response<Body> {
-    Response::builder()
-        .header(CONTENT_TYPE, "application/json")
-        .body(body)
-        .unwrap()
-}
-
-fn render_plain(body: Body) -> Response<Body> {
-    Response::builder()
-        .header(CONTENT_TYPE, "text/plain")
-        .body(body)
-        .unwrap()
-}
-
 async fn handle_terminate_request(compute: &Arc<ComputeNode>) -> Result<(), (String, StatusCode)> {
     {
         let mut state = compute.state.lock().unwrap();

compute_tools/src/http/openapi_spec.yaml

@@ -68,51 +68,6 @@ paths:
               schema:
                 $ref: "#/components/schemas/Info"
 
-  /dbs_and_roles:
-    get:
-      tags:
-        - Info
-      summary: Get databases and roles in the catalog.
-      description: ""
-      operationId: getDbsAndRoles
-      responses:
-        200:
-          description: Compute schema objects
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/DbsAndRoles"
-
-  /database_schema:
-    get:
-      tags:
-        - Info
-      summary: Get schema dump
-      parameters:
-        - name: database
-          in: query
-          description: Database name to dump.
-          required: true
-          schema:
-            type: string
-          example: "postgres"
-      description: Get schema dump in SQL format.
-      operationId: getDatabaseSchema
-      responses:
-        200:
-          description: Schema dump
-          content:
-            text/plain:
-              schema:
-                type: string
-                description: Schema dump in SQL format.
-        404:
-          description: Non existing database.
-          content:
-            application/json:
-              schema:
-                $ref: "#/components/schemas/GenericError"
-
   /check_writability:
     post:
       tags:
@@ -274,73 +229,6 @@ components:
         num_cpus:
           type: integer
 
-    DbsAndRoles:
-      type: object
-      description: Databases and Roles
-      required:
-        - roles
-        - databases
-      properties:
-        roles:
-          type: array
-          items:
-            $ref: "#/components/schemas/Role"
-        databases:
-          type: array
-          items:
-            $ref: "#/components/schemas/Database"
-
-    Database:
-      type: object
-      description: Database
-      required:
-        - name
-        - owner
-        - restrict_conn
-        - invalid
-      properties:
-        name:
-          type: string
-        owner:
-          type: string
-        options:
-          type: array
-          items:
-            $ref: "#/components/schemas/GenericOption"
-        restrict_conn:
-          type: boolean
-        invalid:
-          type: boolean
-
-    Role:
-      type: object
-      description: Role
-      required:
-        - name
-      properties:
-        name:
-          type: string
-        encrypted_password:
-          type: string
-        options:
-          type: array
-          items:
-            $ref: "#/components/schemas/GenericOption"
-
-    GenericOption:
-      type: object
-      description: Schema Generic option
-      required:
-        - name
-        - vartype
-      properties:
-        name:
-          type: string
-        value:
-          type: string
-        vartype:
-          type: string
-
     ComputeState:
       type: object
       required:

compute_tools/src/lib.rs

@@ -8,12 +8,10 @@ pub mod configurator;
 pub mod http;
 #[macro_use]
 pub mod logger;
-pub mod catalog;
 pub mod compute;
 pub mod extension_server;
 pub mod monitor;
 pub mod params;
 pub mod pg_helpers;
 pub mod spec;
-pub mod swap;
 pub mod sync_sk;

compute_tools/src/spec.rs

@@ -2,7 +2,7 @@ use std::fs::File;
 use std::path::Path;
 use std::str::FromStr;
 
-use anyhow::{anyhow, bail, Context, Result};
+use anyhow::{anyhow, bail, Result};
 use postgres::config::Config;
 use postgres::{Client, NoTls};
 use reqwest::StatusCode;
@@ -490,7 +490,7 @@ pub fn handle_databases(spec: &ComputeSpec, client: &mut Client) -> Result<()> {
                 "rename_db" => {
                     let new_name = op.new_name.as_ref().unwrap();
 
-                    if existing_dbs.contains_key(&op.name) {
+                    if existing_dbs.get(&op.name).is_some() {
                         let query: String = format!(
                             "ALTER DATABASE {} RENAME TO {}",
                             op.name.pg_quote(),
@@ -698,8 +698,7 @@ pub fn handle_grants(
 
         // it is important to run this after all grants
         if enable_anon_extension {
-            handle_extension_anon(spec, &db.owner, &mut db_client, false)
-                .context("handle_grants handle_extension_anon")?;
+            handle_extension_anon(spec, &db.owner, &mut db_client, false)?;
         }
     }
 
@@ -814,36 +813,28 @@ $$;"#,
         // Add new migrations below.
     ];
 
-    let mut func = || {
-        let query = "CREATE SCHEMA IF NOT EXISTS neon_migration";
-        client.simple_query(query)?;
+    let mut query = "CREATE SCHEMA IF NOT EXISTS neon_migration";
+    client.simple_query(query)?;
 
-        let query = "CREATE TABLE IF NOT EXISTS neon_migration.migration_id (key INT NOT NULL PRIMARY KEY, id bigint NOT NULL DEFAULT 0)";
-        client.simple_query(query)?;
+    query = "CREATE TABLE IF NOT EXISTS neon_migration.migration_id (key INT NOT NULL PRIMARY KEY, id bigint NOT NULL DEFAULT 0)";
+    client.simple_query(query)?;
 
-        let query = "INSERT INTO neon_migration.migration_id VALUES (0, 0) ON CONFLICT DO NOTHING";
-        client.simple_query(query)?;
+    query = "INSERT INTO neon_migration.migration_id VALUES (0, 0) ON CONFLICT DO NOTHING";
+    client.simple_query(query)?;
 
-        let query = "ALTER SCHEMA neon_migration OWNER TO cloud_admin";
-        client.simple_query(query)?;
+    query = "ALTER SCHEMA neon_migration OWNER TO cloud_admin";
+    client.simple_query(query)?;
 
-        let query = "REVOKE ALL ON SCHEMA neon_migration FROM PUBLIC";
-        client.simple_query(query)?;
-        Ok::<_, anyhow::Error>(())
-    };
-    func().context("handle_migrations prepare")?;
+    query = "REVOKE ALL ON SCHEMA neon_migration FROM PUBLIC";
+    client.simple_query(query)?;
 
-    let query = "SELECT id FROM neon_migration.migration_id";
-    let row = client
-        .query_one(query, &[])
-        .context("handle_migrations get migration_id")?;
+    query = "SELECT id FROM neon_migration.migration_id";
+    let row = client.query_one(query, &[])?;
     let mut current_migration: usize = row.get::<&str, i64>("id") as usize;
     let starting_migration_id = current_migration;
 
-    let query = "BEGIN";
-    client
-        .simple_query(query)
-        .context("handle_migrations begin")?;
+    query = "BEGIN";
+    client.simple_query(query)?;
 
     while current_migration < migrations.len() {
         let migration = &migrations[current_migration];
@@ -851,9 +842,7 @@ $$;"#,
             info!("Skip migration id={}", current_migration);
         } else {
             info!("Running migration:\n{}\n", migration);
-            client.simple_query(migration).with_context(|| {
-                format!("handle_migrations current_migration={}", current_migration)
-            })?;
+            client.simple_query(migration)?;
         }
         current_migration += 1;
     }
@@ -861,14 +850,10 @@ $$;"#,
         "UPDATE neon_migration.migration_id SET id={}",
         migrations.len()
     );
-    client
-        .simple_query(&setval)
-        .context("handle_migrations update id")?;
+    client.simple_query(&setval)?;
 
-    let query = "COMMIT";
-    client
-        .simple_query(query)
-        .context("handle_migrations commit")?;
+    query = "COMMIT";
+    client.simple_query(query)?;
 
     info!(
         "Ran {} migrations",

compute_tools/src/swap.rs

@@ -1,45 +0,0 @@
-use std::path::Path;
-
-use anyhow::{anyhow, Context};
-use tracing::warn;
-
-pub const RESIZE_SWAP_BIN: &str = "/neonvm/bin/resize-swap";
-
-pub fn resize_swap(size_bytes: u64) -> anyhow::Result<()> {
-    // run `/neonvm/bin/resize-swap --once {size_bytes}`
-    //
-    // Passing '--once' causes resize-swap to delete itself after successful completion, which
-    // means that if compute_ctl restarts later, we won't end up calling 'swapoff' while
-    // postgres is running.
-    //
-    // NOTE: resize-swap is not very clever. If present, --once MUST be the first arg.
-    let child_result = std::process::Command::new("/usr/bin/sudo")
-        .arg(RESIZE_SWAP_BIN)
-        .arg("--once")
-        .arg(size_bytes.to_string())
-        .spawn();
-
-    child_result
-        .context("spawn() failed")
-        .and_then(|mut child| child.wait().context("wait() failed"))
-        .and_then(|status| match status.success() {
-            true => Ok(()),
-            false => {
-                // The command failed. Maybe it was because the resize-swap file doesn't exist?
-                // The --once flag causes it to delete itself on success so we don't disable swap
-                // while postgres is running; maybe this is fine.
-                match Path::new(RESIZE_SWAP_BIN).try_exists() {
-                    Err(_) | Ok(true) => Err(anyhow!("process exited with {status}")),
-                    // The path doesn't exist; we're actually ok 
-                    Ok(false) => {
-                        warn!("ignoring \"not found\" error from resize-swap to avoid swapoff while compute is running");
-                        Ok(())
-                    },
-                }
-            }
-        })
-        // wrap any prior error with the overall context that we couldn't run the command
-        .with_context(|| {
-            format!("could not run `/usr/bin/sudo {RESIZE_SWAP_BIN} --once {size_bytes}`")
-        })
-}

control_plane/Cargo.toml

@@ -17,7 +17,6 @@ nix.workspace = true
 once_cell.workspace = true
 postgres.workspace = true
 hex.workspace = true
-humantime-serde.workspace = true
 hyper.workspace = true
 regex.workspace = true
 reqwest = { workspace = true, features = ["blocking", "json"] }
@@ -28,7 +27,6 @@ serde_with.workspace = true
 tar.workspace = true
 thiserror.workspace = true
 toml.workspace = true
-toml_edit.workspace = true
 tokio.workspace = true
 tokio-postgres.workspace = true
 tokio-util.workspace = true

control_plane/src/bin/neon_local.rs

@@ -9,23 +9,20 @@ use anyhow::{anyhow, bail, Context, Result};
 use clap::{value_parser, Arg, ArgAction, ArgMatches, Command, ValueEnum};
 use compute_api::spec::ComputeMode;
 use control_plane::endpoint::ComputeControlPlane;
-use control_plane::local_env::{
-    InitForceMode, LocalEnv, NeonBroker, NeonLocalInitConf, NeonLocalInitPageserverConf,
-    SafekeeperConf,
-};
-use control_plane::pageserver::PageServerNode;
+use control_plane::local_env::{InitForceMode, LocalEnv};
+use control_plane::pageserver::{PageServerNode, PAGESERVER_REMOTE_STORAGE_DIR};
 use control_plane::safekeeper::SafekeeperNode;
 use control_plane::storage_controller::StorageController;
 use control_plane::{broker, local_env};
-use pageserver_api::config::{
-    DEFAULT_HTTP_LISTEN_PORT as DEFAULT_PAGESERVER_HTTP_PORT,
-    DEFAULT_PG_LISTEN_PORT as DEFAULT_PAGESERVER_PG_PORT,
-};
 use pageserver_api::controller_api::PlacementPolicy;
 use pageserver_api::models::{
     ShardParameters, TenantCreateRequest, TimelineCreateRequest, TimelineInfo,
 };
 use pageserver_api::shard::{ShardCount, ShardStripeSize, TenantShardId};
+use pageserver_api::{
+    DEFAULT_HTTP_LISTEN_PORT as DEFAULT_PAGESERVER_HTTP_PORT,
+    DEFAULT_PG_LISTEN_PORT as DEFAULT_PAGESERVER_PG_PORT,
+};
 use postgres_backend::AuthType;
 use postgres_connection::parse_host_port;
 use safekeeper_api::{
@@ -55,6 +52,44 @@ const DEFAULT_PG_VERSION: &str = "15";
 
 const DEFAULT_PAGESERVER_CONTROL_PLANE_API: &str = "http://127.0.0.1:1234/upcall/v1/";
 
+fn default_conf(num_pageservers: u16) -> String {
+    let mut template = format!(
+        r#"
+# Default built-in configuration, defined in main.rs
+control_plane_api = '{DEFAULT_PAGESERVER_CONTROL_PLANE_API}'
+
+[broker]
+listen_addr = '{DEFAULT_BROKER_ADDR}'
+
+[[safekeepers]]
+id = {DEFAULT_SAFEKEEPER_ID}
+pg_port = {DEFAULT_SAFEKEEPER_PG_PORT}
+http_port = {DEFAULT_SAFEKEEPER_HTTP_PORT}
+
+"#,
+    );
+
+    for i in 0..num_pageservers {
+        let pageserver_id = NodeId(DEFAULT_PAGESERVER_ID.0 + i as u64);
+        let pg_port = DEFAULT_PAGESERVER_PG_PORT + i;
+        let http_port = DEFAULT_PAGESERVER_HTTP_PORT + i;
+
+        template += &format!(
+            r#"
+[[pageservers]]
+id = {pageserver_id}
+listen_pg_addr = '127.0.0.1:{pg_port}'
+listen_http_addr = '127.0.0.1:{http_port}'
+pg_auth_type = '{trust_auth}'
+http_auth_type = '{trust_auth}'
+"#,
+            trust_auth = AuthType::Trust,
+        )
+    }
+
+    template
+}
+
 ///
 /// Timelines tree element used as a value in the HashMap.
 ///
@@ -98,7 +133,7 @@ fn main() -> Result<()> {
         let subcommand_result = match sub_name {
             "tenant" => rt.block_on(handle_tenant(sub_args, &mut env)),
             "timeline" => rt.block_on(handle_timeline(sub_args, &mut env)),
-            "start" => rt.block_on(handle_start_all(&env)),
+            "start" => rt.block_on(handle_start_all(sub_args, &env)),
             "stop" => rt.block_on(handle_stop_all(sub_args, &env)),
             "pageserver" => rt.block_on(handle_pageserver(sub_args, &env)),
             "storage_controller" => rt.block_on(handle_storage_controller(sub_args, &env)),
@@ -117,7 +152,7 @@ fn main() -> Result<()> {
     };
 
     match subcommand_result {
-        Ok(Some(updated_env)) => updated_env.persist_config()?,
+        Ok(Some(updated_env)) => updated_env.persist_config(&updated_env.base_data_dir)?,
         Ok(None) => (),
         Err(e) => {
             eprintln!("command failed: {e:?}");
@@ -306,65 +341,48 @@ fn parse_timeline_id(sub_match: &ArgMatches) -> anyhow::Result<Option<TimelineId
 }
 
 fn handle_init(init_match: &ArgMatches) -> anyhow::Result<LocalEnv> {
-    let num_pageservers = init_match.get_one::<u16>("num-pageservers");
-
-    let force = init_match.get_one("force").expect("we set a default value");
-
-    // Create the in-memory `LocalEnv` that we'd normally load from disk in `load_config`.
-    let init_conf: NeonLocalInitConf = if let Some(config_path) =
-        init_match.get_one::<PathBuf>("config")
-    {
-        // User (likely the Python test suite) provided a description of the environment.
-        if num_pageservers.is_some() {
-            bail!("Cannot specify both --num-pageservers and --config, use key `pageservers` in the --config file instead");
-        }
+    let num_pageservers = init_match
+        .get_one::<u16>("num-pageservers")
+        .expect("num-pageservers arg has a default");
+    // Create config file
+    let toml_file: String = if let Some(config_path) = init_match.get_one::<PathBuf>("config") {
         // load and parse the file
-        let contents = std::fs::read_to_string(config_path).with_context(|| {
+        std::fs::read_to_string(config_path).with_context(|| {
             format!(
                 "Could not read configuration file '{}'",
                 config_path.display()
             )
-        })?;
-        toml_edit::de::from_str(&contents)?
+        })?
     } else {
-        // User (likely interactive) did not provide a description of the environment, give them the default
-        NeonLocalInitConf {
-            control_plane_api: Some(Some(DEFAULT_PAGESERVER_CONTROL_PLANE_API.parse().unwrap())),
-            broker: NeonBroker {
-                listen_addr: DEFAULT_BROKER_ADDR.parse().unwrap(),
-            },
-            safekeepers: vec![SafekeeperConf {
-                id: DEFAULT_SAFEKEEPER_ID,
-                pg_port: DEFAULT_SAFEKEEPER_PG_PORT,
-                http_port: DEFAULT_SAFEKEEPER_HTTP_PORT,
-                ..Default::default()
-            }],
-            pageservers: (0..num_pageservers.copied().unwrap_or(1))
-                .map(|i| {
-                    let pageserver_id = NodeId(DEFAULT_PAGESERVER_ID.0 + i as u64);
-                    let pg_port = DEFAULT_PAGESERVER_PG_PORT + i;
-                    let http_port = DEFAULT_PAGESERVER_HTTP_PORT + i;
-                    NeonLocalInitPageserverConf {
-                        id: pageserver_id,
-                        listen_pg_addr: format!("127.0.0.1:{pg_port}"),
-                        listen_http_addr: format!("127.0.0.1:{http_port}"),
-                        pg_auth_type: AuthType::Trust,
-                        http_auth_type: AuthType::Trust,
-                        other: Default::default(),
-                    }
-                })
-                .collect(),
-            pg_distrib_dir: None,
-            neon_distrib_dir: None,
-            default_tenant_id: TenantId::from_array(std::array::from_fn(|_| 0)),
-            storage_controller: None,
-            control_plane_compute_hook_api: None,
-        }
+        // Built-in default config
+        default_conf(*num_pageservers)
     };
 
-    LocalEnv::init(init_conf, force)
-        .context("materialize initial neon_local environment on disk")?;
-    Ok(LocalEnv::load_config().expect("freshly written config should be loadable"))
+    let pg_version = init_match
+        .get_one::<u32>("pg-version")
+        .copied()
+        .context("Failed to parse postgres version from the argument string")?;
+
+    let mut env =
+        LocalEnv::parse_config(&toml_file).context("Failed to create neon configuration")?;
+    let force = init_match.get_one("force").expect("we set a default value");
+    env.init(pg_version, force)
+        .context("Failed to initialize neon repository")?;
+
+    // Create remote storage location for default LocalFs remote storage
+    std::fs::create_dir_all(env.base_data_dir.join(PAGESERVER_REMOTE_STORAGE_DIR))?;
+
+    // Initialize pageserver, create initial tenant and timeline.
+    for ps_conf in &env.pageservers {
+        PageServerNode::from_env(&env, ps_conf)
+            .initialize(&pageserver_config_overrides(init_match))
+            .unwrap_or_else(|e| {
+                eprintln!("pageserver init failed: {e:?}");
+                exit(1);
+            });
+    }
+
+    Ok(env)
 }
 
 /// The default pageserver is the one where CLI tenant/timeline operations are sent by default.
@@ -379,6 +397,15 @@ fn get_default_pageserver(env: &local_env::LocalEnv) -> PageServerNode {
     PageServerNode::from_env(env, ps_conf)
 }
 
+fn pageserver_config_overrides(init_match: &ArgMatches) -> Vec<&str> {
+    init_match
+        .get_many::<String>("pageserver-config-override")
+        .into_iter()
+        .flatten()
+        .map(String::as_str)
+        .collect()
+}
+
 async fn handle_tenant(
     tenant_match: &ArgMatches,
     env: &mut local_env::LocalEnv,
@@ -390,54 +417,6 @@ async fn handle_tenant(
                 println!("{} {:?}", t.id, t.state);
             }
         }
-        Some(("import", import_match)) => {
-            let tenant_id = parse_tenant_id(import_match)?.unwrap_or_else(TenantId::generate);
-
-            let storage_controller = StorageController::from_env(env);
-            let create_response = storage_controller.tenant_import(tenant_id).await?;
-
-            let shard_zero = create_response
-                .shards
-                .first()
-                .expect("Import response omitted shards");
-
-            let attached_pageserver_id = shard_zero.node_id;
-            let pageserver =
-                PageServerNode::from_env(env, env.get_pageserver_conf(attached_pageserver_id)?);
-
-            println!(
-                "Imported tenant {tenant_id}, attached to pageserver {attached_pageserver_id}"
-            );
-
-            let timelines = pageserver
-                .http_client
-                .list_timelines(shard_zero.shard_id)
-                .await?;
-
-            // Pick a 'main' timeline that has no ancestors, the rest will get arbitrary names
-            let main_timeline = timelines
-                .iter()
-                .find(|t| t.ancestor_timeline_id.is_none())
-                .expect("No timelines found")
-                .timeline_id;
-
-            let mut branch_i = 0;
-            for timeline in timelines.iter() {
-                let branch_name = if timeline.timeline_id == main_timeline {
-                    "main".to_string()
-                } else {
-                    branch_i += 1;
-                    format!("branch_{branch_i}")
-                };
-
-                println!(
-                    "Importing timeline {tenant_id}/{} as branch {branch_name}",
-                    timeline.timeline_id
-                );
-
-                env.register_branch_mapping(branch_name, tenant_id, timeline.timeline_id)?;
-            }
-        }
         Some(("create", create_match)) => {
             let tenant_conf: HashMap<_, _> = create_match
                 .get_many::<String>("config")
@@ -810,8 +789,6 @@ async fn handle_endpoint(ep_match: &ArgMatches, env: &local_env::LocalEnv) -> Re
                 .copied()
                 .unwrap_or(false);
 
-            let allow_multiple = sub_args.get_flag("allow-multiple");
-
             let mode = match (lsn, hot_standby) {
                 (Some(lsn), false) => ComputeMode::Static(lsn),
                 (None, true) => ComputeMode::Replica,
@@ -829,9 +806,7 @@ async fn handle_endpoint(ep_match: &ArgMatches, env: &local_env::LocalEnv) -> Re
                 _ => {}
             }
 
-            if !allow_multiple {
-                cplane.check_conflicting_endpoints(mode, tenant_id, timeline_id)?;
-            }
+            cplane.check_conflicting_endpoints(mode, tenant_id, timeline_id)?;
 
             cplane.new_endpoint(
                 &endpoint_id,
@@ -860,8 +835,6 @@ async fn handle_endpoint(ep_match: &ArgMatches, env: &local_env::LocalEnv) -> Re
 
             let remote_ext_config = sub_args.get_one::<String>("remote-ext-config");
 
-            let allow_multiple = sub_args.get_flag("allow-multiple");
-
             // If --safekeepers argument is given, use only the listed safekeeper nodes.
             let safekeepers =
                 if let Some(safekeepers_str) = sub_args.get_one::<String>("safekeepers") {
@@ -887,13 +860,11 @@ async fn handle_endpoint(ep_match: &ArgMatches, env: &local_env::LocalEnv) -> Re
                 .cloned()
                 .unwrap_or_default();
 
-            if !allow_multiple {
-                cplane.check_conflicting_endpoints(
-                    endpoint.mode,
-                    endpoint.tenant_id,
-                    endpoint.timeline_id,
-                )?;
-            }
+            cplane.check_conflicting_endpoints(
+                endpoint.mode,
+                endpoint.tenant_id,
+                endpoint.timeline_id,
+            )?;
 
             let (pageservers, stripe_size) = if let Some(pageserver_id) = pageserver_id {
                 let conf = env.get_pageserver_conf(pageserver_id).unwrap();
@@ -1049,7 +1020,10 @@ fn get_pageserver(env: &local_env::LocalEnv, args: &ArgMatches) -> Result<PageSe
 async fn handle_pageserver(sub_match: &ArgMatches, env: &local_env::LocalEnv) -> Result<()> {
     match sub_match.subcommand() {
         Some(("start", subcommand_args)) => {
-            if let Err(e) = get_pageserver(env, subcommand_args)?.start().await {
+            if let Err(e) = get_pageserver(env, subcommand_args)?
+                .start(&pageserver_config_overrides(subcommand_args))
+                .await
+            {
                 eprintln!("pageserver start failed: {e}");
                 exit(1);
             }
@@ -1075,7 +1049,10 @@ async fn handle_pageserver(sub_match: &ArgMatches, env: &local_env::LocalEnv) ->
                 exit(1);
             }
 
-            if let Err(e) = pageserver.start().await {
+            if let Err(e) = pageserver
+                .start(&pageserver_config_overrides(subcommand_args))
+                .await
+            {
                 eprintln!("pageserver start failed: {e}");
                 exit(1);
             }
@@ -1202,7 +1179,7 @@ async fn handle_safekeeper(sub_match: &ArgMatches, env: &local_env::LocalEnv) ->
     Ok(())
 }
 
-async fn handle_start_all(env: &local_env::LocalEnv) -> anyhow::Result<()> {
+async fn handle_start_all(sub_match: &ArgMatches, env: &local_env::LocalEnv) -> anyhow::Result<()> {
     // Endpoints are not started automatically
 
     broker::start_broker_process(env).await?;
@@ -1219,7 +1196,10 @@ async fn handle_start_all(env: &local_env::LocalEnv) -> anyhow::Result<()> {
 
     for ps_conf in &env.pageservers {
         let pageserver = PageServerNode::from_env(env, ps_conf);
-        if let Err(e) = pageserver.start().await {
+        if let Err(e) = pageserver
+            .start(&pageserver_config_overrides(sub_match))
+            .await
+        {
             eprintln!("pageserver {} start failed: {:#}", ps_conf.id, e);
             try_stop_all(env, true).await;
             exit(1);
@@ -1360,6 +1340,13 @@ fn cli() -> Command {
         .required(false)
         .value_name("stop-mode");
 
+    let pageserver_config_args = Arg::new("pageserver-config-override")
+        .long("pageserver-config-override")
+        .num_args(1)
+        .action(ArgAction::Append)
+        .help("Additional pageserver's configuration options or overrides, refer to pageserver's 'config-override' CLI parameter docs for more")
+        .required(false);
+
     let remote_ext_config_args = Arg::new("remote-ext-config")
         .long("remote-ext-config")
         .num_args(1)
@@ -1393,7 +1380,9 @@ fn cli() -> Command {
     let num_pageservers_arg = Arg::new("num-pageservers")
         .value_parser(value_parser!(u16))
         .long("num-pageservers")
-        .help("How many pageservers to create (default 1)");
+        .help("How many pageservers to create (default 1)")
+        .required(false)
+        .default_value("1");
 
     let update_catalog = Arg::new("update-catalog")
         .value_parser(value_parser!(bool))
@@ -1407,25 +1396,20 @@ fn cli() -> Command {
         .help("If set, will create test user `user` and `neondb` database. Requires `update-catalog = true`")
         .required(false);
 
-    let allow_multiple = Arg::new("allow-multiple")
-        .help("Allow multiple primary endpoints running on the same branch. Shouldn't be used normally, but useful for tests.")
-        .long("allow-multiple")
-        .action(ArgAction::SetTrue)
-        .required(false);
-
     Command::new("Neon CLI")
         .arg_required_else_help(true)
         .version(GIT_VERSION)
         .subcommand(
             Command::new("init")
                 .about("Initialize a new Neon repository, preparing configs for services to start with")
+                .arg(pageserver_config_args.clone())
                 .arg(num_pageservers_arg.clone())
                 .arg(
                     Arg::new("config")
                         .long("config")
                         .required(false)
                         .value_parser(value_parser!(PathBuf))
-                        .value_name("config")
+                        .value_name("config"),
                 )
                 .arg(pg_version_arg.clone())
                 .arg(force_arg)
@@ -1433,7 +1417,6 @@ fn cli() -> Command {
         .subcommand(
             Command::new("timeline")
             .about("Manage timelines")
-            .arg_required_else_help(true)
             .subcommand(Command::new("list")
                 .about("List all timelines, available to this pageserver")
                 .arg(tenant_id_arg.clone()))
@@ -1496,8 +1479,6 @@ fn cli() -> Command {
             .subcommand(Command::new("config")
                 .arg(tenant_id_arg.clone())
                 .arg(Arg::new("config").short('c').num_args(1).action(ArgAction::Append).required(false)))
-            .subcommand(Command::new("import").arg(tenant_id_arg.clone().required(true))
-                .about("Import a tenant that is present in remote storage, and create branches for its timelines"))
         )
         .subcommand(
             Command::new("pageserver")
@@ -1507,6 +1488,7 @@ fn cli() -> Command {
                 .subcommand(Command::new("status"))
                 .subcommand(Command::new("start")
                     .about("Start local pageserver")
+                    .arg(pageserver_config_args.clone())
                 )
                 .subcommand(Command::new("stop")
                     .about("Stop local pageserver")
@@ -1514,14 +1496,15 @@ fn cli() -> Command {
                 )
                 .subcommand(Command::new("restart")
                     .about("Restart local pageserver")
+                    .arg(pageserver_config_args.clone())
                 )
         )
         .subcommand(
             Command::new("storage_controller")
                 .arg_required_else_help(true)
                 .about("Manage storage_controller")
-                .subcommand(Command::new("start").about("Start storage controller"))
-                .subcommand(Command::new("stop").about("Stop storage controller")
+                .subcommand(Command::new("start").about("Start local pageserver").arg(pageserver_config_args.clone()))
+                .subcommand(Command::new("stop").about("Stop local pageserver")
                             .arg(stop_mode_arg.clone()))
         )
         .subcommand(
@@ -1567,7 +1550,6 @@ fn cli() -> Command {
                     .arg(pg_version_arg.clone())
                     .arg(hot_standby_arg.clone())
                     .arg(update_catalog)
-                    .arg(allow_multiple.clone())
                 )
                 .subcommand(Command::new("start")
                     .about("Start postgres.\n If the endpoint doesn't exist yet, it is created.")
@@ -1576,7 +1558,6 @@ fn cli() -> Command {
                     .arg(safekeepers_arg)
                     .arg(remote_ext_config_args)
                     .arg(create_test_user)
-                    .arg(allow_multiple.clone())
                 )
                 .subcommand(Command::new("reconfigure")
                             .about("Reconfigure the endpoint")
@@ -1628,6 +1609,7 @@ fn cli() -> Command {
         .subcommand(
             Command::new("start")
                 .about("Start page server and safekeepers")
+                .arg(pageserver_config_args)
         )
         .subcommand(
             Command::new("stop")

control_plane/src/endpoint.rs

@@ -554,7 +554,6 @@ impl Endpoint {
             format_version: 1.0,
             operation_uuid: None,
             features: self.features.clone(),
-            swap_size_bytes: None,
             cluster: Cluster {
                 cluster_id: None, // project ID: not used
                 name: None,       // project name: not used

control_plane/src/local_env.rs

@@ -3,7 +3,7 @@
 //! Now it also provides init method which acts like a stub for proper installation
 //! script which will use local paths.
 
-use anyhow::{bail, Context};
+use anyhow::{bail, ensure, Context};
 
 use clap::ValueEnum;
 use postgres_backend::AuthType;
@@ -17,14 +17,11 @@ use std::net::Ipv4Addr;
 use std::net::SocketAddr;
 use std::path::{Path, PathBuf};
 use std::process::{Command, Stdio};
-use std::time::Duration;
 use utils::{
     auth::{encode_from_key_file, Claims},
     id::{NodeId, TenantId, TenantTimelineId, TimelineId},
 };
 
-use crate::pageserver::PageServerNode;
-use crate::pageserver::PAGESERVER_REMOTE_STORAGE_DIR;
 use crate::safekeeper::SafekeeperNode;
 
 pub const DEFAULT_PG_VERSION: u32 = 15;
@@ -36,7 +33,7 @@ pub const DEFAULT_PG_VERSION: u32 = 15;
 // to 'neon_local init --config=<path>' option. See control_plane/simple.conf for
 // an example.
 //
-#[derive(PartialEq, Eq, Clone, Debug)]
+#[derive(Serialize, Deserialize, PartialEq, Eq, Clone, Debug)]
 pub struct LocalEnv {
     // Base directory for all the nodes (the pageserver, safekeepers and
     // compute endpoints).
@@ -44,99 +41,55 @@ pub struct LocalEnv {
     // This is not stored in the config file. Rather, this is the path where the
     // config file itself is. It is read from the NEON_REPO_DIR env variable or
     // '.neon' if not given.
+    #[serde(skip)]
     pub base_data_dir: PathBuf,
 
     // Path to postgres distribution. It's expected that "bin", "include",
     // "lib", "share" from postgres distribution are there. If at some point
     // in time we will be able to run against vanilla postgres we may split that
     // to four separate paths and match OS-specific installation layout.
+    #[serde(default)]
     pub pg_distrib_dir: PathBuf,
 
     // Path to pageserver binary.
+    #[serde(default)]
     pub neon_distrib_dir: PathBuf,
 
     // Default tenant ID to use with the 'neon_local' command line utility, when
     // --tenant_id is not explicitly specified.
+    #[serde(default)]
     pub default_tenant_id: Option<TenantId>,
 
     // used to issue tokens during e.g pg start
+    #[serde(default)]
     pub private_key_path: PathBuf,
 
     pub broker: NeonBroker,
 
-    // Configuration for the storage controller (1 per neon_local environment)
-    pub storage_controller: NeonStorageControllerConf,
-
     /// This Vec must always contain at least one pageserver
-    /// Populdated by [`Self::load_config`] from the individual `pageserver.toml`s.
-    /// NB: not used anymore except for informing users that they need to change their `.neon/config`.
     pub pageservers: Vec<PageServerConf>,
 
+    #[serde(default)]
     pub safekeepers: Vec<SafekeeperConf>,
 
     // Control plane upcall API for pageserver: if None, we will not run storage_controller  If set, this will
     // be propagated into each pageserver's configuration.
+    #[serde(default)]
     pub control_plane_api: Option<Url>,
 
     // Control plane upcall API for storage controller.  If set, this will be propagated into the
     // storage controller's configuration.
+    #[serde(default)]
     pub control_plane_compute_hook_api: Option<Url>,
 
     /// Keep human-readable aliases in memory (and persist them to config), to hide ZId hex strings from the user.
+    #[serde(default)]
     // A `HashMap<String, HashMap<TenantId, TimelineId>>` would be more appropriate here,
     // but deserialization into a generic toml object as `toml::Value::try_from` fails with an error.
     // https://toml.io/en/v1.0.0 does not contain a concept of "a table inside another table".
-    pub branch_name_mappings: HashMap<String, Vec<(TenantId, TimelineId)>>,
-}
-
-/// On-disk state stored in `.neon/config`.
-#[derive(PartialEq, Eq, Clone, Debug, Default, Serialize, Deserialize)]
-#[serde(default, deny_unknown_fields)]
-pub struct OnDiskConfig {
-    pub pg_distrib_dir: PathBuf,
-    pub neon_distrib_dir: PathBuf,
-    pub default_tenant_id: Option<TenantId>,
-    pub private_key_path: PathBuf,
-    pub broker: NeonBroker,
-    pub storage_controller: NeonStorageControllerConf,
-    #[serde(
-        skip_serializing,
-        deserialize_with = "fail_if_pageservers_field_specified"
-    )]
-    pub pageservers: Vec<PageServerConf>,
-    pub safekeepers: Vec<SafekeeperConf>,
-    pub control_plane_api: Option<Url>,
-    pub control_plane_compute_hook_api: Option<Url>,
     branch_name_mappings: HashMap<String, Vec<(TenantId, TimelineId)>>,
 }
 
-fn fail_if_pageservers_field_specified<'de, D>(_: D) -> Result<Vec<PageServerConf>, D::Error>
-where
-    D: serde::Deserializer<'de>,
-{
-    Err(serde::de::Error::custom(
-        "The 'pageservers' field is no longer used; pageserver.toml is now authoritative; \
-         Please remove the `pageservers` from your .neon/config.",
-    ))
-}
-
-/// The description of the neon_local env to be initialized by `neon_local init --config`.
-#[derive(Clone, Debug, Deserialize)]
-#[serde(deny_unknown_fields)]
-pub struct NeonLocalInitConf {
-    // TODO: do we need this? Seems unused
-    pub pg_distrib_dir: Option<PathBuf>,
-    // TODO: do we need this? Seems unused
-    pub neon_distrib_dir: Option<PathBuf>,
-    pub default_tenant_id: TenantId,
-    pub broker: NeonBroker,
-    pub storage_controller: Option<NeonStorageControllerConf>,
-    pub pageservers: Vec<NeonLocalInitPageserverConf>,
-    pub safekeepers: Vec<SafekeeperConf>,
-    pub control_plane_api: Option<Option<Url>>,
-    pub control_plane_compute_hook_api: Option<Option<Url>>,
-}
-
 /// Broker config for cluster internal communication.
 #[derive(Serialize, Deserialize, PartialEq, Eq, Clone, Debug)]
 #[serde(default)]
@@ -145,33 +98,6 @@ pub struct NeonBroker {
     pub listen_addr: SocketAddr,
 }
 
-/// Broker config for cluster internal communication.
-#[derive(Serialize, Deserialize, PartialEq, Eq, Clone, Debug)]
-#[serde(default)]
-pub struct NeonStorageControllerConf {
-    /// Heartbeat timeout before marking a node offline
-    #[serde(with = "humantime_serde")]
-    pub max_unavailable: Duration,
-
-    /// Threshold for auto-splitting a tenant into shards
-    pub split_threshold: Option<u64>,
-}
-
-impl NeonStorageControllerConf {
-    // Use a shorter pageserver unavailability interval than the default to speed up tests.
-    const DEFAULT_MAX_UNAVAILABLE_INTERVAL: std::time::Duration =
-        std::time::Duration::from_secs(10);
-}
-
-impl Default for NeonStorageControllerConf {
-    fn default() -> Self {
-        Self {
-            max_unavailable: Self::DEFAULT_MAX_UNAVAILABLE_INTERVAL,
-            split_threshold: None,
-        }
-    }
-}
-
 // Dummy Default impl to satisfy Deserialize derive.
 impl Default for NeonBroker {
     fn default() -> Self {
@@ -187,18 +113,22 @@ impl NeonBroker {
     }
 }
 
-// neon_local needs to know this subset of pageserver configuration.
-// For legacy reasons, this information is duplicated from `pageserver.toml` into `.neon/config`.
-// It can get stale if `pageserver.toml` is changed.
-// TODO(christian): don't store this at all in `.neon/config`, always load it from `pageserver.toml`
 #[derive(Serialize, Deserialize, PartialEq, Eq, Clone, Debug)]
 #[serde(default, deny_unknown_fields)]
 pub struct PageServerConf {
+    // node id
     pub id: NodeId,
+
+    // Pageserver connection settings
     pub listen_pg_addr: String,
     pub listen_http_addr: String,
+
+    // auth type used for the PG and HTTP ports
     pub pg_auth_type: AuthType,
     pub http_auth_type: AuthType,
+
+    pub(crate) virtual_file_io_engine: Option<String>,
+    pub(crate) get_vectored_impl: Option<String>,
 }
 
 impl Default for PageServerConf {
@@ -209,40 +139,8 @@ impl Default for PageServerConf {
             listen_http_addr: String::new(),
             pg_auth_type: AuthType::Trust,
             http_auth_type: AuthType::Trust,
-        }
-    }
-}
-
-/// The toml that can be passed to `neon_local init --config`.
-/// This is a subset of the `pageserver.toml` configuration.
-// TODO(christian): use pageserver_api::config::ConfigToml (PR #7656)
-#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
-pub struct NeonLocalInitPageserverConf {
-    pub id: NodeId,
-    pub listen_pg_addr: String,
-    pub listen_http_addr: String,
-    pub pg_auth_type: AuthType,
-    pub http_auth_type: AuthType,
-    #[serde(flatten)]
-    pub other: HashMap<String, toml::Value>,
-}
-
-impl From<&NeonLocalInitPageserverConf> for PageServerConf {
-    fn from(conf: &NeonLocalInitPageserverConf) -> Self {
-        let NeonLocalInitPageserverConf {
-            id,
-            listen_pg_addr,
-            listen_http_addr,
-            pg_auth_type,
-            http_auth_type,
-            other: _,
-        } = conf;
-        Self {
-            id: *id,
-            listen_pg_addr: listen_pg_addr.clone(),
-            listen_http_addr: listen_http_addr.clone(),
-            pg_auth_type: *pg_auth_type,
-            http_auth_type: *http_auth_type,
+            virtual_file_io_engine: None,
+            get_vectored_impl: None,
         }
     }
 }
@@ -258,7 +156,6 @@ pub struct SafekeeperConf {
     pub remote_storage: Option<String>,
     pub backup_threads: Option<u32>,
     pub auth_enabled: bool,
-    pub listen_addr: Option<String>,
 }
 
 impl Default for SafekeeperConf {
@@ -272,7 +169,6 @@ impl Default for SafekeeperConf {
             remote_storage: None,
             backup_threads: None,
             auth_enabled: false,
-            listen_addr: None,
         }
     }
 }
@@ -430,7 +326,41 @@ impl LocalEnv {
             .collect()
     }
 
-    ///  Construct `Self` from on-disk state.
+    /// Create a LocalEnv from a config file.
+    ///
+    /// Unlike 'load_config', this function fills in any defaults that are missing
+    /// from the config file.
+    pub fn parse_config(toml: &str) -> anyhow::Result<Self> {
+        let mut env: LocalEnv = toml::from_str(toml)?;
+
+        // Find postgres binaries.
+        // Follow POSTGRES_DISTRIB_DIR if set, otherwise look in "pg_install".
+        // Note that later in the code we assume, that distrib dirs follow the same pattern
+        // for all postgres versions.
+        if env.pg_distrib_dir == Path::new("") {
+            if let Some(postgres_bin) = env::var_os("POSTGRES_DISTRIB_DIR") {
+                env.pg_distrib_dir = postgres_bin.into();
+            } else {
+                let cwd = env::current_dir()?;
+                env.pg_distrib_dir = cwd.join("pg_install")
+            }
+        }
+
+        // Find neon binaries.
+        if env.neon_distrib_dir == Path::new("") {
+            env.neon_distrib_dir = env::current_exe()?.parent().unwrap().to_owned();
+        }
+
+        if env.pageservers.is_empty() {
+            anyhow::bail!("Configuration must contain at least one pageserver");
+        }
+
+        env.base_data_dir = base_path();
+
+        Ok(env)
+    }
+
+    /// Locate and load config
     pub fn load_config() -> anyhow::Result<Self> {
         let repopath = base_path();
 
@@ -444,129 +374,38 @@ impl LocalEnv {
         // TODO: check that it looks like a neon repository
 
         // load and parse file
-        let config_file_contents = fs::read_to_string(repopath.join("config"))?;
-        let on_disk_config: OnDiskConfig = toml::from_str(config_file_contents.as_str())?;
-        let mut env = {
-            let OnDiskConfig {
-                pg_distrib_dir,
-                neon_distrib_dir,
-                default_tenant_id,
-                private_key_path,
-                broker,
-                storage_controller,
-                pageservers,
-                safekeepers,
-                control_plane_api,
-                control_plane_compute_hook_api,
-                branch_name_mappings,
-            } = on_disk_config;
-            LocalEnv {
-                base_data_dir: repopath.clone(),
-                pg_distrib_dir,
-                neon_distrib_dir,
-                default_tenant_id,
-                private_key_path,
-                broker,
-                storage_controller,
-                pageservers,
-                safekeepers,
-                control_plane_api,
-                control_plane_compute_hook_api,
-                branch_name_mappings,
-            }
-        };
+        let config = fs::read_to_string(repopath.join("config"))?;
+        let mut env: LocalEnv = toml::from_str(config.as_str())?;
 
-        // The source of truth for pageserver configuration is the pageserver.toml.
-        assert!(
-            env.pageservers.is_empty(),
-            "we ensure this during deserialization"
-        );
-        env.pageservers = {
-            let iter = std::fs::read_dir(&repopath).context("open dir")?;
-            let mut pageservers = Vec::new();
-            for res in iter {
-                let dentry = res?;
-                const PREFIX: &str = "pageserver_";
-                let dentry_name = dentry
-                    .file_name()
-                    .into_string()
-                    .ok()
-                    .with_context(|| format!("non-utf8 dentry: {:?}", dentry.path()))
-                    .unwrap();
-                if !dentry_name.starts_with(PREFIX) {
-                    continue;
-                }
-                if !dentry.file_type().context("determine file type")?.is_dir() {
-                    anyhow::bail!("expected a directory, got {:?}", dentry.path());
-                }
-                let id = dentry_name[PREFIX.len()..]
-                    .parse::<NodeId>()
-                    .with_context(|| format!("parse id from {:?}", dentry.path()))?;
-                // TODO(christian): use pageserver_api::config::ConfigToml (PR #7656)
-                #[derive(serde::Serialize, serde::Deserialize)]
-                // (allow unknown fields, unlike PageServerConf)
-                struct PageserverConfigTomlSubset {
-                    id: NodeId,
-                    listen_pg_addr: String,
-                    listen_http_addr: String,
-                    pg_auth_type: AuthType,
-                    http_auth_type: AuthType,
-                }
-                let config_toml_path = dentry.path().join("pageserver.toml");
-                let config_toml: PageserverConfigTomlSubset = toml_edit::de::from_str(
-                    &std::fs::read_to_string(&config_toml_path)
-                        .with_context(|| format!("read {:?}", config_toml_path))?,
-                )
-                .context("parse pageserver.toml")?;
-                let PageserverConfigTomlSubset {
-                    id: config_toml_id,
-                    listen_pg_addr,
-                    listen_http_addr,
-                    pg_auth_type,
-                    http_auth_type,
-                } = config_toml;
-                let conf = PageServerConf {
-                    id: {
-                        anyhow::ensure!(
-                            config_toml_id == id,
-                            "id mismatch: config_toml.id={config_toml_id} id={id}",
-                        );
-                        id
-                    },
-                    listen_pg_addr,
-                    listen_http_addr,
-                    pg_auth_type,
-                    http_auth_type,
-                };
-                pageservers.push(conf);
-            }
-            pageservers
-        };
+        env.base_data_dir = repopath;
 
         Ok(env)
     }
 
-    pub fn persist_config(&self) -> anyhow::Result<()> {
-        Self::persist_config_impl(
-            &self.base_data_dir,
-            &OnDiskConfig {
-                pg_distrib_dir: self.pg_distrib_dir.clone(),
-                neon_distrib_dir: self.neon_distrib_dir.clone(),
-                default_tenant_id: self.default_tenant_id,
-                private_key_path: self.private_key_path.clone(),
-                broker: self.broker.clone(),
-                storage_controller: self.storage_controller.clone(),
-                pageservers: vec![], // it's skip_serializing anyway
-                safekeepers: self.safekeepers.clone(),
-                control_plane_api: self.control_plane_api.clone(),
-                control_plane_compute_hook_api: self.control_plane_compute_hook_api.clone(),
-                branch_name_mappings: self.branch_name_mappings.clone(),
-            },
-        )
-    }
+    pub fn persist_config(&self, base_path: &Path) -> anyhow::Result<()> {
+        // Currently, the user first passes a config file with 'neon_local init --config=<path>'
+        // We read that in, in `create_config`, and fill any missing defaults. Then it's saved
+        // to .neon/config. TODO: We lose any formatting and comments along the way, which is
+        // a bit sad.
+        let mut conf_content = r#"# This file describes a local deployment of the page server
+# and safekeeeper node. It is read by the 'neon_local' command-line
+# utility.
+"#
+        .to_string();
+
+        // Convert the LocalEnv to a toml file.
+        //
+        // This could be as simple as this:
+        //
+        // conf_content += &toml::to_string_pretty(env)?;
+        //
+        // But it results in a "values must be emitted before tables". I'm not sure
+        // why, AFAICS the table, i.e. 'safekeepers: Vec<SafekeeperConf>' is last.
+        // Maybe rust reorders the fields to squeeze avoid padding or something?
+        // In any case, converting to toml::Value first, and serializing that, works.
+        // See https://github.com/alexcrichton/toml-rs/issues/142
+        conf_content += &toml::to_string_pretty(&toml::Value::try_from(self)?)?;
 
-    pub fn persist_config_impl(base_path: &Path, config: &OnDiskConfig) -> anyhow::Result<()> {
-        let conf_content = &toml::to_string_pretty(config)?;
         let target_config_path = base_path.join("config");
         fs::write(&target_config_path, conf_content).with_context(|| {
             format!(
@@ -591,13 +430,17 @@ impl LocalEnv {
         }
     }
 
-    /// Materialize the [`NeonLocalInitConf`] to disk. Called during [`neon_local init`].
-    pub fn init(conf: NeonLocalInitConf, force: &InitForceMode) -> anyhow::Result<()> {
-        let base_path = base_path();
-        assert_ne!(base_path, Path::new(""));
-        let base_path = &base_path;
+    //
+    // Initialize a new Neon repository
+    //
+    pub fn init(&mut self, pg_version: u32, force: &InitForceMode) -> anyhow::Result<()> {
+        // check if config already exists
+        let base_path = &self.base_data_dir;
+        ensure!(
+            base_path != Path::new(""),
+            "repository base path is missing"
+        );
 
-        // create base_path dir
         if base_path.exists() {
             match force {
                 InitForceMode::MustNotExist => {
@@ -629,96 +472,70 @@ impl LocalEnv {
                 }
             }
         }
+
+        if !self.pg_bin_dir(pg_version)?.join("postgres").exists() {
+            bail!(
+                "Can't find postgres binary at {}",
+                self.pg_bin_dir(pg_version)?.display()
+            );
+        }
+        for binary in ["pageserver", "safekeeper"] {
+            if !self.neon_distrib_dir.join(binary).exists() {
+                bail!(
+                    "Can't find binary '{binary}' in neon distrib dir '{}'",
+                    self.neon_distrib_dir.display()
+                );
+            }
+        }
+
         if !base_path.exists() {
             fs::create_dir(base_path)?;
         }
 
-        let NeonLocalInitConf {
-            pg_distrib_dir,
-            neon_distrib_dir,
-            default_tenant_id,
-            broker,
-            storage_controller,
-            pageservers,
-            safekeepers,
-            control_plane_api,
-            control_plane_compute_hook_api,
-        } = conf;
-
-        // Find postgres binaries.
-        // Follow POSTGRES_DISTRIB_DIR if set, otherwise look in "pg_install".
-        // Note that later in the code we assume, that distrib dirs follow the same pattern
-        // for all postgres versions.
-        let pg_distrib_dir = pg_distrib_dir.unwrap_or_else(|| {
-            if let Some(postgres_bin) = env::var_os("POSTGRES_DISTRIB_DIR") {
-                postgres_bin.into()
-            } else {
-                let cwd = env::current_dir().unwrap();
-                cwd.join("pg_install")
-            }
-        });
-
-        // Find neon binaries.
-        let neon_distrib_dir = neon_distrib_dir
-            .unwrap_or_else(|| env::current_exe().unwrap().parent().unwrap().to_owned());
-
         // Generate keypair for JWT.
         //
         // The keypair is only needed if authentication is enabled in any of the
         // components. For convenience, we generate the keypair even if authentication
         // is not enabled, so that you can easily enable it after the initialization
-        // step.
-        generate_auth_keys(
-            base_path.join("auth_private_key.pem").as_path(),
-            base_path.join("auth_public_key.pem").as_path(),
-        )
-        .context("generate auth keys")?;
-        let private_key_path = PathBuf::from("auth_private_key.pem");
-
-        // create the runtime type because the remaining initialization code below needs
-        // a LocalEnv instance op operation
-        // TODO: refactor to avoid this, LocalEnv should only be constructed from on-disk state
-        let env = LocalEnv {
-            base_data_dir: base_path.clone(),
-            pg_distrib_dir,
-            neon_distrib_dir,
-            default_tenant_id: Some(default_tenant_id),
-            private_key_path,
-            broker,
-            storage_controller: storage_controller.unwrap_or_default(),
-            pageservers: pageservers.iter().map(Into::into).collect(),
-            safekeepers,
-            control_plane_api: control_plane_api.unwrap_or_default(),
-            control_plane_compute_hook_api: control_plane_compute_hook_api.unwrap_or_default(),
-            branch_name_mappings: Default::default(),
-        };
-
-        // create endpoints dir
-        fs::create_dir_all(env.endpoints_path())?;
-
-        // create safekeeper dirs
-        for safekeeper in &env.safekeepers {
-            fs::create_dir_all(SafekeeperNode::datadir_path_by_id(&env, safekeeper.id))?;
+        // step. However, if the key generation fails, we treat it as non-fatal if
+        // authentication was not enabled.
+        if self.private_key_path == PathBuf::new() {
+            match generate_auth_keys(
+                base_path.join("auth_private_key.pem").as_path(),
+                base_path.join("auth_public_key.pem").as_path(),
+            ) {
+                Ok(()) => {
+                    self.private_key_path = PathBuf::from("auth_private_key.pem");
+                }
+                Err(e) => {
+                    if !self.auth_keys_needed() {
+                        eprintln!("Could not generate keypair for JWT authentication: {e}");
+                        eprintln!("Continuing anyway because authentication was not enabled");
+                        self.private_key_path = PathBuf::from("auth_private_key.pem");
+                    } else {
+                        return Err(e);
+                    }
+                }
+            }
         }
 
-        // initialize pageserver state
-        for (i, ps) in pageservers.into_iter().enumerate() {
-            let runtime_ps = &env.pageservers[i];
-            assert_eq!(&PageServerConf::from(&ps), runtime_ps);
-            fs::create_dir(env.pageserver_data_dir(ps.id))?;
-            PageServerNode::from_env(&env, runtime_ps)
-                .initialize(ps)
-                .context("pageserver init failed")?;
+        fs::create_dir_all(self.endpoints_path())?;
+
+        for safekeeper in &self.safekeepers {
+            fs::create_dir_all(SafekeeperNode::datadir_path_by_id(self, safekeeper.id))?;
         }
 
-        // setup remote remote location for default LocalFs remote storage
-        std::fs::create_dir_all(env.base_data_dir.join(PAGESERVER_REMOTE_STORAGE_DIR))?;
+        self.persist_config(base_path)
+    }
 
-        env.persist_config()
+    fn auth_keys_needed(&self) -> bool {
+        self.pageservers.iter().any(|ps| {
+            ps.pg_auth_type == AuthType::NeonJWT || ps.http_auth_type == AuthType::NeonJWT
+        }) || self.safekeepers.iter().any(|sk| sk.auth_enabled)
     }
 }
 
-pub fn base_path() -> PathBuf {
+fn base_path() -> PathBuf {
     match std::env::var_os("NEON_REPO_DIR") {
         Some(val) => PathBuf::from(val),
         None => PathBuf::from(".neon"),
@@ -761,3 +578,31 @@ fn generate_auth_keys(private_key_path: &Path, public_key_path: &Path) -> anyhow
     }
     Ok(())
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn simple_conf_parsing() {
+        let simple_conf_toml = include_str!("../simple.conf");
+        let simple_conf_parse_result = LocalEnv::parse_config(simple_conf_toml);
+        assert!(
+            simple_conf_parse_result.is_ok(),
+            "failed to parse simple config {simple_conf_toml}, reason: {simple_conf_parse_result:?}"
+        );
+
+        let string_to_replace = "listen_addr = '127.0.0.1:50051'";
+        let spoiled_url_str = "listen_addr = '!@$XOXO%^&'";
+        let spoiled_url_toml = simple_conf_toml.replace(string_to_replace, spoiled_url_str);
+        assert!(
+            spoiled_url_toml.contains(spoiled_url_str),
+            "Failed to replace string {string_to_replace} in the toml file {simple_conf_toml}"
+        );
+        let spoiled_url_parse_result = LocalEnv::parse_config(&spoiled_url_toml);
+        assert!(
+            spoiled_url_parse_result.is_err(),
+            "expected toml with invalid Url {spoiled_url_toml} to fail the parsing, but got {spoiled_url_parse_result:?}"
+        );
+    }
+}

control_plane/src/pageserver.rs

@@ -4,21 +4,21 @@
 //!
 //!   .neon/
 //!
+use std::borrow::Cow;
 use std::collections::HashMap;
 
 use std::io;
 use std::io::Write;
 use std::num::NonZeroU64;
 use std::path::PathBuf;
-use std::str::FromStr;
+use std::process::Command;
 use std::time::Duration;
 
 use anyhow::{bail, Context};
 use camino::Utf8PathBuf;
 use futures::SinkExt;
 use pageserver_api::models::{
-    self, AuxFilePolicy, LocationConfig, ShardParameters, TenantHistorySize, TenantInfo,
-    TimelineInfo,
+    self, LocationConfig, ShardParameters, TenantHistorySize, TenantInfo, TimelineInfo,
 };
 use pageserver_api::shard::TenantShardId;
 use pageserver_client::mgmt_api;
@@ -30,7 +30,7 @@ use utils::{
     lsn::Lsn,
 };
 
-use crate::local_env::{NeonLocalInitPageserverConf, PageServerConf};
+use crate::local_env::PageServerConf;
 use crate::{background_process, local_env::LocalEnv};
 
 /// Directory within .neon which will be used by default for LocalFs remote storage.
@@ -74,23 +74,57 @@ impl PageServerNode {
         }
     }
 
-    fn pageserver_init_make_toml(
-        &self,
-        conf: NeonLocalInitPageserverConf,
-    ) -> anyhow::Result<toml_edit::Document> {
-        assert_eq!(&PageServerConf::from(&conf), &self.conf, "during neon_local init, we derive the runtime state of ps conf (self.conf) from the --config flag fully");
-
-        // TODO(christian): instead of what we do here, create a pageserver_api::config::ConfigToml (PR #7656)
-
+    /// Merge overrides provided by the user on the command line with our default overides derived from neon_local configuration.
+    ///
+    /// These all end up on the command line of the `pageserver` binary.
+    fn neon_local_overrides(&self, cli_overrides: &[&str]) -> Vec<String> {
         // FIXME: the paths should be shell-escaped to handle paths with spaces, quotas etc.
         let pg_distrib_dir_param = format!(
             "pg_distrib_dir='{}'",
             self.env.pg_distrib_dir_raw().display()
         );
 
+        let PageServerConf {
+            id,
+            listen_pg_addr,
+            listen_http_addr,
+            pg_auth_type,
+            http_auth_type,
+            virtual_file_io_engine,
+            get_vectored_impl,
+        } = &self.conf;
+
+        let id = format!("id={}", id);
+
+        let http_auth_type_param = format!("http_auth_type='{}'", http_auth_type);
+        let listen_http_addr_param = format!("listen_http_addr='{}'", listen_http_addr);
+
+        let pg_auth_type_param = format!("pg_auth_type='{}'", pg_auth_type);
+        let listen_pg_addr_param = format!("listen_pg_addr='{}'", listen_pg_addr);
+        let virtual_file_io_engine = if let Some(virtual_file_io_engine) = virtual_file_io_engine {
+            format!("virtual_file_io_engine='{virtual_file_io_engine}'")
+        } else {
+            String::new()
+        };
+        let get_vectored_impl = if let Some(get_vectored_impl) = get_vectored_impl {
+            format!("get_vectored_impl='{get_vectored_impl}'")
+        } else {
+            String::new()
+        };
+
         let broker_endpoint_param = format!("broker_endpoint='{}'", self.env.broker.client_url());
 
-        let mut overrides = vec![pg_distrib_dir_param, broker_endpoint_param];
+        let mut overrides = vec![
+            id,
+            pg_distrib_dir_param,
+            http_auth_type_param,
+            pg_auth_type_param,
+            listen_http_addr_param,
+            listen_pg_addr_param,
+            broker_endpoint_param,
+            virtual_file_io_engine,
+            get_vectored_impl,
+        ];
 
         if let Some(control_plane_api) = &self.env.control_plane_api {
             overrides.push(format!(
@@ -100,7 +134,7 @@ impl PageServerNode {
 
             // Storage controller uses the same auth as pageserver: if JWT is enabled
             // for us, we will also need it to talk to them.
-            if matches!(conf.http_auth_type, AuthType::NeonJWT) {
+            if matches!(http_auth_type, AuthType::NeonJWT) {
                 let jwt_token = self
                     .env
                     .generate_auth_token(&Claims::new(None, Scope::GenerationsApi))
@@ -109,40 +143,31 @@ impl PageServerNode {
             }
         }
 
-        if !conf.other.contains_key("remote_storage") {
+        if !cli_overrides
+            .iter()
+            .any(|c| c.starts_with("remote_storage"))
+        {
             overrides.push(format!(
                 "remote_storage={{local_path='../{PAGESERVER_REMOTE_STORAGE_DIR}'}}"
             ));
         }
 
-        if conf.http_auth_type != AuthType::Trust || conf.pg_auth_type != AuthType::Trust {
+        if *http_auth_type != AuthType::Trust || *pg_auth_type != AuthType::Trust {
             // Keys are generated in the toplevel repo dir, pageservers' workdirs
             // are one level below that, so refer to keys with ../
             overrides.push("auth_validation_public_key_path='../auth_public_key.pem'".to_owned());
         }
 
         // Apply the user-provided overrides
-        overrides.push(
-            toml_edit::ser::to_string_pretty(&conf)
-                .expect("we deserialized this from toml earlier"),
-        );
+        overrides.extend(cli_overrides.iter().map(|&c| c.to_owned()));
 
-        // Turn `overrides` into a toml document.
-        // TODO: above code is legacy code, it should be refactored to use toml_edit directly.
-        let mut config_toml = toml_edit::Document::new();
-        for fragment_str in overrides {
-            let fragment = toml_edit::Document::from_str(&fragment_str)
-                .expect("all fragments in `overrides` are valid toml documents, this function controls that");
-            for (key, item) in fragment.iter() {
-                config_toml.insert(key, item.clone());
-            }
-        }
-        Ok(config_toml)
+        overrides
     }
 
     /// Initializes a pageserver node by creating its config with the overrides provided.
-    pub fn initialize(&self, conf: NeonLocalInitPageserverConf) -> anyhow::Result<()> {
-        self.pageserver_init(conf)
+    pub fn initialize(&self, config_overrides: &[&str]) -> anyhow::Result<()> {
+        // First, run `pageserver --init` and wait for it to write a config into FS and exit.
+        self.pageserver_init(config_overrides)
             .with_context(|| format!("Failed to run init for pageserver node {}", self.conf.id))
     }
 
@@ -158,11 +183,11 @@ impl PageServerNode {
             .expect("non-Unicode path")
     }
 
-    pub async fn start(&self) -> anyhow::Result<()> {
-        self.start_node().await
+    pub async fn start(&self, config_overrides: &[&str]) -> anyhow::Result<()> {
+        self.start_node(config_overrides, false).await
     }
 
-    fn pageserver_init(&self, conf: NeonLocalInitPageserverConf) -> anyhow::Result<()> {
+    fn pageserver_init(&self, config_overrides: &[&str]) -> anyhow::Result<()> {
         let datadir = self.repo_path();
         let node_id = self.conf.id;
         println!(
@@ -173,20 +198,29 @@ impl PageServerNode {
         );
         io::stdout().flush()?;
 
-        let config = self
-            .pageserver_init_make_toml(conf)
-            .context("make pageserver toml")?;
-        let config_file_path = datadir.join("pageserver.toml");
-        let mut config_file = std::fs::OpenOptions::new()
-            .create_new(true)
-            .write(true)
-            .open(&config_file_path)
-            .with_context(|| format!("open pageserver toml for write: {config_file_path:?}"))?;
-        config_file
-            .write_all(config.to_string().as_bytes())
-            .context("write pageserver toml")?;
-        drop(config_file);
-        // TODO: invoke a TBD config-check command to validate that pageserver will start with the written config
+        if !datadir.exists() {
+            std::fs::create_dir(&datadir)?;
+        }
+
+        let datadir_path_str = datadir.to_str().with_context(|| {
+            format!("Cannot start pageserver node {node_id} in path that has no string representation: {datadir:?}")
+        })?;
+        let mut args = self.pageserver_basic_args(config_overrides, datadir_path_str);
+        args.push(Cow::Borrowed("--init"));
+
+        let init_output = Command::new(self.env.pageserver_bin())
+            .args(args.iter().map(Cow::as_ref))
+            .envs(self.pageserver_env_variables()?)
+            .output()
+            .with_context(|| format!("Failed to run pageserver init for node {node_id}"))?;
+
+        anyhow::ensure!(
+            init_output.status.success(),
+            "Pageserver init for node {} did not finish successfully, stdout: {}, stderr: {}",
+            node_id,
+            String::from_utf8_lossy(&init_output.stdout),
+            String::from_utf8_lossy(&init_output.stderr),
+        );
 
         // Write metadata file, used by pageserver on startup to register itself with
         // the storage controller
@@ -200,13 +234,12 @@ impl PageServerNode {
         // situation: the metadata is written by some other script.
         std::fs::write(
             metadata_path,
-            serde_json::to_vec(&pageserver_api::config::NodeMetadata {
-                postgres_host: "localhost".to_string(),
-                postgres_port: self.pg_connection_config.port(),
-                http_host: "localhost".to_string(),
-                http_port,
-                other: HashMap::new(),
-            })
+            serde_json::to_vec(&serde_json::json!({
+                "host": "localhost",
+                "port": self.pg_connection_config.port(),
+                "http_host": "localhost",
+                "http_port": http_port,
+            }))
             .unwrap(),
         )
         .expect("Failed to write metadata file");
@@ -214,7 +247,11 @@ impl PageServerNode {
         Ok(())
     }
 
-    async fn start_node(&self) -> anyhow::Result<()> {
+    async fn start_node(
+        &self,
+        config_overrides: &[&str],
+        update_config: bool,
+    ) -> anyhow::Result<()> {
         // TODO: using a thread here because start_process() is not async but we need to call check_status()
         let datadir = self.repo_path();
         print!(
@@ -231,12 +268,15 @@ impl PageServerNode {
                 self.conf.id, datadir,
             )
         })?;
-        let args = vec!["-D", datadir_path_str];
+        let mut args = self.pageserver_basic_args(config_overrides, datadir_path_str);
+        if update_config {
+            args.push(Cow::Borrowed("--update-config"));
+        }
         background_process::start_process(
             "pageserver",
             &datadir,
             &self.env.pageserver_bin(),
-            args,
+            args.iter().map(Cow::as_ref),
             self.pageserver_env_variables()?,
             background_process::InitialPidFile::Expect(self.pid_file()),
             || async {
@@ -253,6 +293,22 @@ impl PageServerNode {
         Ok(())
     }
 
+    fn pageserver_basic_args<'a>(
+        &self,
+        config_overrides: &'a [&'a str],
+        datadir_path_str: &'a str,
+    ) -> Vec<Cow<'a, str>> {
+        let mut args = vec![Cow::Borrowed("-D"), Cow::Borrowed(datadir_path_str)];
+
+        let overrides = self.neon_local_overrides(config_overrides);
+        for config_override in overrides {
+            args.push(Cow::Borrowed("-c"));
+            args.push(Cow::Owned(config_override));
+        }
+
+        args
+    }
+
     fn pageserver_env_variables(&self) -> anyhow::Result<Vec<(String, String)>> {
         // FIXME: why is this tied to pageserver's auth type? Whether or not the safekeeper
         // needs a token, and how to generate that token, seems independent to whether
@@ -378,11 +434,6 @@ impl PageServerNode {
                 .map(serde_json::from_str)
                 .transpose()
                 .context("parse `timeline_get_throttle` from json")?,
-            switch_aux_file_policy: settings
-                .remove("switch_aux_file_policy")
-                .map(|x| x.parse::<AuxFilePolicy>())
-                .transpose()
-                .context("Failed to parse 'switch_aux_file_policy'")?,
         };
         if !settings.is_empty() {
             bail!("Unrecognized tenant settings: {settings:?}")
@@ -501,11 +552,6 @@ impl PageServerNode {
                     .map(serde_json::from_str)
                     .transpose()
                     .context("parse `timeline_get_throttle` from json")?,
-                switch_aux_file_policy: settings
-                    .remove("switch_aux_file_policy")
-                    .map(|x| x.parse::<AuxFilePolicy>())
-                    .transpose()
-                    .context("Failed to parse 'switch_aux_file_policy'")?,
             }
         };
 

control_plane/src/safekeeper.rs

@@ -70,31 +70,24 @@ pub struct SafekeeperNode {
     pub pg_connection_config: PgConnectionConfig,
     pub env: LocalEnv,
     pub http_client: reqwest::Client,
-    pub listen_addr: String,
     pub http_base_url: String,
 }
 
 impl SafekeeperNode {
     pub fn from_env(env: &LocalEnv, conf: &SafekeeperConf) -> SafekeeperNode {
-        let listen_addr = if let Some(ref listen_addr) = conf.listen_addr {
-            listen_addr.clone()
-        } else {
-            "127.0.0.1".to_string()
-        };
         SafekeeperNode {
             id: conf.id,
             conf: conf.clone(),
-            pg_connection_config: Self::safekeeper_connection_config(&listen_addr, conf.pg_port),
+            pg_connection_config: Self::safekeeper_connection_config(conf.pg_port),
             env: env.clone(),
             http_client: reqwest::Client::new(),
-            http_base_url: format!("http://{}:{}/v1", listen_addr, conf.http_port),
-            listen_addr,
+            http_base_url: format!("http://127.0.0.1:{}/v1", conf.http_port),
         }
     }
 
     /// Construct libpq connection string for connecting to this safekeeper.
-    fn safekeeper_connection_config(addr: &str, port: u16) -> PgConnectionConfig {
-        PgConnectionConfig::new_host_port(url::Host::parse(addr).unwrap(), port)
+    fn safekeeper_connection_config(port: u16) -> PgConnectionConfig {
+        PgConnectionConfig::new_host_port(url::Host::parse("127.0.0.1").unwrap(), port)
     }
 
     pub fn datadir_path_by_id(env: &LocalEnv, sk_id: NodeId) -> PathBuf {
@@ -118,8 +111,8 @@ impl SafekeeperNode {
         );
         io::stdout().flush().unwrap();
 
-        let listen_pg = format!("{}:{}", self.listen_addr, self.conf.pg_port);
-        let listen_http = format!("{}:{}", self.listen_addr, self.conf.http_port);
+        let listen_pg = format!("127.0.0.1:{}", self.conf.pg_port);
+        let listen_http = format!("127.0.0.1:{}", self.conf.http_port);
         let id = self.id;
         let datadir = self.datadir_path();
 
@@ -146,7 +139,7 @@ impl SafekeeperNode {
             availability_zone,
         ];
         if let Some(pg_tenant_only_port) = self.conf.pg_tenant_only_port {
-            let listen_pg_tenant_only = format!("{}:{}", self.listen_addr, pg_tenant_only_port);
+            let listen_pg_tenant_only = format!("127.0.0.1:{}", pg_tenant_only_port);
             args.extend(["--listen-pg-tenant-only".to_owned(), listen_pg_tenant_only]);
         }
         if !self.conf.sync {

control_plane/src/storage_controller.rs

@@ -1,8 +1,6 @@
-use crate::{
-    background_process,
-    local_env::{LocalEnv, NeonStorageControllerConf},
-};
+use crate::{background_process, local_env::LocalEnv};
 use camino::{Utf8Path, Utf8PathBuf};
+use hyper::Method;
 use pageserver_api::{
     controller_api::{
         NodeConfigureRequest, NodeRegisterRequest, TenantCreateResponse, TenantLocateResponse,
@@ -16,7 +14,6 @@ use pageserver_api::{
 };
 use pageserver_client::mgmt_api::ResponseErrorMessageExt;
 use postgres_backend::AuthType;
-use reqwest::Method;
 use serde::{de::DeserializeOwned, Deserialize, Serialize};
 use std::{fs, str::FromStr};
 use tokio::process::Command;
@@ -35,13 +32,15 @@ pub struct StorageController {
     public_key: Option<String>,
     postgres_port: u16,
     client: reqwest::Client,
-    config: NeonStorageControllerConf,
 }
 
 const COMMAND: &str = "storage_controller";
 
 const STORAGE_CONTROLLER_POSTGRES_VERSION: u32 = 16;
 
+// Use a shorter pageserver unavailability interval than the default to speed up tests.
+const NEON_LOCAL_MAX_UNAVAILABLE_INTERVAL: std::time::Duration = std::time::Duration::from_secs(10);
+
 #[derive(Serialize, Deserialize)]
 pub struct AttachHookRequest {
     pub tenant_shard_id: TenantShardId,
@@ -136,7 +135,6 @@ impl StorageController {
             client: reqwest::ClientBuilder::new()
                 .build()
                 .expect("Failed to construct http client"),
-            config: env.storage_controller.clone(),
         }
     }
 
@@ -243,13 +241,9 @@ impl StorageController {
                 anyhow::bail!("initdb failed with status {status}");
             }
 
-            // Write a minimal config file:
-            // - Specify the port, since this is chosen dynamically
-            // - Switch off fsync, since we're running on lightweight test environments and when e.g. scale testing
-            //   the storage controller we don't want a slow local disk to interfere with that.
             tokio::fs::write(
                 &pg_data_path.join("postgresql.conf"),
-                format!("port = {}\nfsync=off\n", self.postgres_port),
+                format!("port = {}", self.postgres_port),
             )
             .await?;
         };
@@ -278,6 +272,8 @@ impl StorageController {
         // Run migrations on every startup, in case something changed.
         let database_url = self.setup_database().await?;
 
+        let max_unavailable: humantime::Duration = NEON_LOCAL_MAX_UNAVAILABLE_INTERVAL.into();
+
         let mut args = vec![
             "-l",
             &self.listen,
@@ -287,7 +283,7 @@ impl StorageController {
             "--database-url",
             &database_url,
             "--max-unavailable-interval",
-            &humantime::Duration::from(self.config.max_unavailable).to_string(),
+            &max_unavailable.to_string(),
         ]
         .into_iter()
         .map(|s| s.to_string())
@@ -309,10 +305,6 @@ impl StorageController {
             ));
         }
 
-        if let Some(split_threshold) = self.config.split_threshold.as_ref() {
-            args.push(format!("--split-threshold={split_threshold}"))
-        }
-
         background_process::start_process(
             COMMAND,
             &self.env.base_data_dir,
@@ -387,7 +379,7 @@ impl StorageController {
     /// Simple HTTP request wrapper for calling into storage controller
     async fn dispatch<RQ, RS>(
         &self,
-        method: reqwest::Method,
+        method: hyper::Method,
         path: String,
         body: Option<RQ>,
     ) -> anyhow::Result<RS>
@@ -480,16 +472,6 @@ impl StorageController {
             .await
     }
 
-    #[instrument(skip(self))]
-    pub async fn tenant_import(&self, tenant_id: TenantId) -> anyhow::Result<TenantCreateResponse> {
-        self.dispatch::<(), TenantCreateResponse>(
-            Method::POST,
-            format!("debug/v1/tenant/{tenant_id}/import"),
-            None,
-        )
-        .await
-    }
-
     #[instrument(skip(self))]
     pub async fn tenant_locate(&self, tenant_id: TenantId) -> anyhow::Result<TenantLocateResponse> {
         self.dispatch::<(), _>(

control_plane/storcon_cli/src/main.rs

@@ -1,19 +1,20 @@
-use std::{collections::HashMap, str::FromStr, time::Duration};
+use std::{collections::HashMap, str::FromStr};
 
 use clap::{Parser, Subcommand};
+use hyper::Method;
 use pageserver_api::{
     controller_api::{
         NodeAvailabilityWrapper, NodeDescribeResponse, ShardSchedulingPolicy,
         TenantDescribeResponse, TenantPolicyRequest,
     },
     models::{
-        LocationConfigSecondary, ShardParameters, TenantConfig, TenantConfigRequest,
-        TenantCreateRequest, TenantShardSplitRequest, TenantShardSplitResponse,
+        ShardParameters, TenantConfig, TenantConfigRequest, TenantCreateRequest,
+        TenantShardSplitRequest, TenantShardSplitResponse,
     },
     shard::{ShardStripeSize, TenantShardId},
 };
 use pageserver_client::mgmt_api::{self, ResponseErrorMessageExt};
-use reqwest::{Method, StatusCode, Url};
+use reqwest::Url;
 use serde::{de::DeserializeOwned, Serialize};
 use utils::id::{NodeId, TenantId};
 
@@ -119,12 +120,6 @@ enum Command {
         #[arg(long)]
         tenant_id: TenantId,
     },
-    /// For a tenant which hasn't been onboarded to the storage controller yet, add it in secondary
-    /// mode so that it can warm up content on a pageserver.
-    TenantWarmup {
-        #[arg(long)]
-        tenant_id: TenantId,
-    },
 }
 
 #[derive(Parser)]
@@ -231,7 +226,7 @@ impl Client {
     /// Simple HTTP request wrapper for calling into storage controller
     async fn dispatch<RQ, RS>(
         &self,
-        method: Method,
+        method: hyper::Method,
         path: String,
         body: Option<RQ>,
     ) -> mgmt_api::Result<RS>
@@ -586,94 +581,6 @@ async fn main() -> anyhow::Result<()> {
             }
             println!("{table}");
         }
-        Command::TenantWarmup { tenant_id } => {
-            let describe_response = storcon_client
-                .dispatch::<(), TenantDescribeResponse>(
-                    Method::GET,
-                    format!("control/v1/tenant/{tenant_id}"),
-                    None,
-                )
-                .await;
-            match describe_response {
-                Ok(describe) => {
-                    if matches!(describe.policy, PlacementPolicy::Secondary) {
-                        // Fine: it's already known to controller in secondary mode: calling
-                        // again to put it into secondary mode won't cause problems.
-                    } else {
-                        anyhow::bail!("Tenant already present with policy {:?}", describe.policy);
-                    }
-                }
-                Err(mgmt_api::Error::ApiError(StatusCode::NOT_FOUND, _)) => {
-                    // Fine: this tenant isn't know to the storage controller yet.
-                }
-                Err(e) => {
-                    // Unexpected API error
-                    return Err(e.into());
-                }
-            }
-
-            vps_client
-                .location_config(
-                    TenantShardId::unsharded(tenant_id),
-                    pageserver_api::models::LocationConfig {
-                        mode: pageserver_api::models::LocationConfigMode::Secondary,
-                        generation: None,
-                        secondary_conf: Some(LocationConfigSecondary { warm: true }),
-                        shard_number: 0,
-                        shard_count: 0,
-                        shard_stripe_size: ShardParameters::DEFAULT_STRIPE_SIZE.0,
-                        tenant_conf: TenantConfig::default(),
-                    },
-                    None,
-                    true,
-                )
-                .await?;
-
-            let describe_response = storcon_client
-                .dispatch::<(), TenantDescribeResponse>(
-                    Method::GET,
-                    format!("control/v1/tenant/{tenant_id}"),
-                    None,
-                )
-                .await?;
-
-            let secondary_ps_id = describe_response
-                .shards
-                .first()
-                .unwrap()
-                .node_secondary
-                .first()
-                .unwrap();
-
-            println!("Tenant {tenant_id} warming up on pageserver {secondary_ps_id}");
-            loop {
-                let (status, progress) = vps_client
-                    .tenant_secondary_download(
-                        TenantShardId::unsharded(tenant_id),
-                        Some(Duration::from_secs(10)),
-                    )
-                    .await?;
-                println!(
-                    "Progress: {}/{} layers, {}/{} bytes",
-                    progress.layers_downloaded,
-                    progress.layers_total,
-                    progress.bytes_downloaded,
-                    progress.bytes_total
-                );
-                match status {
-                    StatusCode::OK => {
-                        println!("Download complete");
-                        break;
-                    }
-                    StatusCode::ACCEPTED => {
-                        // Loop
-                    }
-                    _ => {
-                        anyhow::bail!("Unexpected download status: {status}");
-                    }
-                }
-            }
-        }
     }
 
     Ok(())

docker-compose/compute_wrapper/Dockerfile

@@ -1,4 +1,4 @@
-ARG REPOSITORY=neondatabase
+ARG REPOSITORY=369495373322.dkr.ecr.eu-central-1.amazonaws.com
 ARG COMPUTE_IMAGE=compute-node-v14
 ARG TAG=latest
 

docker-compose/docker_compose_test.sh

@@ -8,6 +8,8 @@
 # Their defaults point at DockerHub `neondatabase/neon:latest` image.`,
 # to verify custom image builds (e.g pre-published ones).
 
+# XXX: Current does not work on M1 macs due to x86_64 Docker images compiled only, and no seccomp support in M1 Docker emulation layer.
+
 set -eux -o pipefail
 
 SCRIPT_DIR="$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"

docs/storage_controller.md

@@ -1,150 +0,0 @@
-# Storage Controller
-
-## Concepts
-
-The storage controller sits between administrative API clients and pageservers, and handles the details of mapping tenants to pageserver tenant shards. For example, creating a tenant is one API call to the storage controller,
-which is mapped into many API calls to many pageservers (for multiple shards, and for secondary locations).
-
-It implements a pageserver-compatible API that may be used for CRUD operations on tenants and timelines, translating these requests into appropriate operations on the shards within a tenant, which may be on many different pageservers. Using this API, the storage controller may be used in the same way as the pageserver's administrative HTTP API, hiding
-the underlying details of how data is spread across multiple nodes.
-
-The storage controller also manages generations, high availability (via secondary locations) and live migrations for tenants under its management. This is done with a reconciliation loop pattern, where tenants have an “intent” state and a “reconcile” task that tries to make the outside world match the intent.
-
-## APIs
-
-The storage controller’s HTTP server implements four logically separate APIs:
-
-- `/v1/...` path is the pageserver-compatible API. This has to be at the path root because that’s where clients expect to find it on a pageserver.
-- `/control/v1/...` path is the storage controller’s API, which enables operations such as registering and management pageservers, or executing shard splits.
-- `/debug/v1/...` path contains endpoints which are either exclusively used in tests, or are for use by engineers when supporting a deployed system.
-- `/upcall/v1/...` path contains endpoints that are called by pageservers. This includes the `/re-attach` and `/validate` APIs used by pageservers
-  to ensure data safety with generation numbers.
-
-The API is authenticated with a JWT token, and tokens must have scope `pageserverapi` (i.e. the same scope as pageservers’ APIs).
-
-See the `http.rs` file in the source for where the HTTP APIs are implemented.
-
-## Database
-
-The storage controller uses a postgres database to persist a subset of its state. Note that the storage controller does _not_ keep all its state in the database: this is a design choice to enable most operations to be done efficiently in memory, rather than having to read from the database. See `persistence.rs` for a more comprehensive comment explaining what we do and do not persist: a useful metaphor is that we persist objects like tenants and nodes, but we do not
-persist the _relationships_ between them: the attachment state of a tenant's shards to nodes is kept in memory and
-rebuilt on startup.
-
-The file `persistence.rs` contains all the code for accessing the database, and has a large doc comment that goes into more detail about exactly what we persist and why.
-
-The `diesel` crate is used for defining models & migrations.
-
-Running a local cluster with `cargo neon` automatically starts a vanilla postgress process to host the storage controller’s database.
-
-### Diesel tip: migrations
-
-If you need to modify the database schema, here’s how to create a migration:
-
-- Install the diesel CLI with `cargo install diesel_cli`
-- Use `diesel migration generate <name>` to create a new migration
-- Populate the SQL files in the `migrations/` subdirectory
-- Use `DATABASE_URL=... diesel migration run` to apply the migration you just wrote: this will update the `[schema.rs](http://schema.rs)` file automatically.
-  - This requires a running database: the easiest way to do that is to just run `cargo neon init ; cargo neon start`, which will leave a database available at `postgresql://localhost:1235/attachment_service`
-- Commit the migration files and the changes to schema.rs
-- If you need to iterate, you can rewind migrations with `diesel migration revert -a` and then `diesel migration run` again.
-- The migrations are build into the storage controller binary, and automatically run at startup after it is deployed, so once you’ve committed a migration no further steps are needed.
-
-## storcon_cli
-
-The `storcon_cli` tool enables interactive management of the storage controller. This is usually
-only necessary for debug, but may also be used to manage nodes (e.g. marking a node as offline).
-
-`storcon_cli --help` includes details on commands.
-
-# Deploying
-
-This section is aimed at engineers deploying the storage controller outside of Neon's cloud platform, as
-part of a self-hosted system.
-
-_General note: since the default `neon_local` environment includes a storage controller, this is a useful
-reference when figuring out deployment._
-
-## Database
-
-It is **essential** that the database used by the storage controller is durable (**do not store it on ephemeral
-local disk**). This database contains pageserver generation numbers, which are essential to data safety on the pageserver.
-
-The resource requirements for the database are very low: a single CPU core and 1GiB of memory should work well for most deployments. The physical size of the database is typically under a gigabyte.
-
-Set the URL to the database using the `--database-url` CLI option.
-
-There is no need to run migrations manually: the storage controller automatically applies migrations
-when it starts up.
-
-## Configure pageservers to use the storage controller
-
-1. The pageserver `control_plane_api` and `control_plane_api_token` should be set in the `pageserver.toml` file. The API setting should
-   point to the "upcall" prefix, for example `http://127.0.0.1:1234/upcall/v1/` is used in neon_local clusters.
-2. Create a `metadata.json` file in the same directory as `pageserver.toml`: this enables the pageserver to automatically register itself
-   with the storage controller when it starts up. See the example below for the format of this file.
-
-### Example `metadata.json`
-
-```
-{"host":"acmehost.localdomain","http_host":"acmehost.localdomain","http_port":9898,"port":64000}
-```
-
-- `port` and `host` refer to the _postgres_ port and host, and these must be accessible from wherever
-  postgres runs.
-- `http_port` and `http_host` refer to the pageserver's HTTP api, this must be accessible from where
-  the storage controller runs.
-
-## Handle compute notifications.
-
-The storage controller independently moves tenant attachments between pageservers in response to
-changes such as a pageserver node becoming unavailable, or the tenant's shard count changing. To enable
-postgres clients to handle such changes, the storage controller calls an API hook when a tenant's pageserver
-location changes.
-
-The hook is configured using the storage controller's `--compute-hook-url` CLI option. If the hook requires
-JWT auth, the token may be provided with `--control-plane-jwt-token`. The hook will be invoked with a `PUT` request.
-
-In the Neon cloud service, this hook is implemented by Neon's internal cloud control plane. In `neon_local` systems
-the storage controller integrates directly with neon_local to reconfigure local postgres processes instead of calling
-the compute hook.
-
-When implementing an on-premise Neon deployment, you must implement a service that handles the compute hook. This is not complicated:
-the request body has format of the `ComputeHookNotifyRequest` structure, provided below for convenience.
-
-```
-struct ComputeHookNotifyRequestShard {
-    node_id: NodeId,
-    shard_number: ShardNumber,
-}
-
-struct ComputeHookNotifyRequest {
-    tenant_id: TenantId,
-    stripe_size: Option<ShardStripeSize>,
-    shards: Vec<ComputeHookNotifyRequestShard>,
-}
-```
-
-When a notification is received:
-
-1. Modify postgres configuration for this tenant:
-
-   - set `neon.pageserver_connstr` to a comma-separated list of postgres connection strings to pageservers according to the `shards` list. The
-     shards identified by `NodeId` must be converted to the address+port of the node.
-   - if stripe_size is not None, set `neon.stripe_size` to this value
-
-2. Send SIGHUP to postgres to reload configuration
-3. Respond with 200 to the notification request. Do not return success if postgres was not updated: if an error is returned, the controller
-   will retry the notification until it succeeds..
-
-### Example notification body
-
-```
-{
-  "tenant_id": "1f359dd625e519a1a4e8d7509690f6fc",
-  "stripe_size": 32768,
-  "shards": [
-      {"node_id": 344, "shard_number": 0},
-      {"node_id": 722, "shard_number": 1},
-  ],
-}
-```

libs/compute_api/src/responses.rs

@@ -3,7 +3,7 @@
 use chrono::{DateTime, Utc};
 use serde::{Deserialize, Serialize, Serializer};
 
-use crate::spec::{ComputeSpec, Database, Role};
+use crate::spec::ComputeSpec;
 
 #[derive(Serialize, Debug, Deserialize)]
 pub struct GenericAPIError {
@@ -113,12 +113,6 @@ pub struct ComputeMetrics {
     pub total_ext_download_size: u64,
 }
 
-#[derive(Clone, Debug, Default, Serialize)]
-pub struct CatalogObjects {
-    pub roles: Vec<Role>,
-    pub databases: Vec<Database>,
-}
-
 /// Response of the `/computes/{compute_id}/spec` control-plane API.
 /// This is not actually a compute API response, so consider moving
 /// to a different place.

libs/compute_api/src/spec.rs

@@ -33,23 +33,6 @@ pub struct ComputeSpec {
     #[serde(default)]
     pub features: Vec<ComputeFeature>,
 
-    /// If compute_ctl was passed `--resize-swap-on-bind`, a value of `Some(_)` instructs
-    /// compute_ctl to `/neonvm/bin/resize-swap` with the given size, when the spec is first
-    /// received.
-    ///
-    /// Both this field and `--resize-swap-on-bind` are required, so that the control plane's
-    /// spec generation doesn't need to be aware of the actual compute it's running on, while
-    /// guaranteeing gradual rollout of swap. Otherwise, without `--resize-swap-on-bind`, we could
-    /// end up trying to resize swap in VMs without it -- or end up *not* resizing swap, thus
-    /// giving every VM much more swap than it should have (32GiB).
-    ///
-    /// Eventually we may remove `--resize-swap-on-bind` and exclusively use `swap_size_bytes` for
-    /// enabling the swap resizing behavior once rollout is complete.
-    ///
-    /// See neondatabase/cloud#12047 for more.
-    #[serde(default)]
-    pub swap_size_bytes: Option<u64>,
-
     /// Expected cluster state at the end of transition process.
     pub cluster: Cluster,
     pub delta_operations: Option<Vec<DeltaOp>>,

libs/metrics/src/lib.rs

@@ -256,16 +256,7 @@ fn update_rusage_metrics() {
     DISK_IO_BYTES
         .with_label_values(&["write"])
         .set(rusage_stats.ru_oublock * BYTES_IN_BLOCK);
-
-    // On macOS, the unit of maxrss is bytes; on Linux, it's kilobytes. https://stackoverflow.com/a/59915669
-    #[cfg(target_os = "macos")]
-    {
-        MAXRSS_KB.set(rusage_stats.ru_maxrss / 1024);
-    }
-    #[cfg(not(target_os = "macos"))]
-    {
-        MAXRSS_KB.set(rusage_stats.ru_maxrss);
-    }
+    MAXRSS_KB.set(rusage_stats.ru_maxrss);
 }
 
 fn get_rusage_stats() -> libc::rusage {
@@ -480,15 +471,6 @@ impl<A: CounterPairAssoc> CounterPairVec<A> {
         let id = self.vec.with_labels(labels);
         self.vec.remove_metric(id)
     }
-
-    pub fn sample(&self, labels: <A::LabelGroupSet as LabelGroupSet>::Group<'_>) -> u64 {
-        let id = self.vec.with_labels(labels);
-        let metric = self.vec.get_metric(id);
-
-        let inc = metric.inc.count.load(std::sync::atomic::Ordering::Relaxed);
-        let dec = metric.dec.count.load(std::sync::atomic::Ordering::Relaxed);
-        inc.saturating_sub(dec)
-    }
 }
 
 impl<T, A> ::measured::metric::group::MetricGroup<T> for CounterPairVec<A>

libs/pageserver_api/src/config.rs

@@ -1,31 +0,0 @@
-use std::collections::HashMap;
-
-use const_format::formatcp;
-
-#[cfg(test)]
-mod tests;
-
-pub const DEFAULT_PG_LISTEN_PORT: u16 = 64000;
-pub const DEFAULT_PG_LISTEN_ADDR: &str = formatcp!("127.0.0.1:{DEFAULT_PG_LISTEN_PORT}");
-pub const DEFAULT_HTTP_LISTEN_PORT: u16 = 9898;
-pub const DEFAULT_HTTP_LISTEN_ADDR: &str = formatcp!("127.0.0.1:{DEFAULT_HTTP_LISTEN_PORT}");
-
-// Certain metadata (e.g. externally-addressable name, AZ) is delivered
-// as a separate structure.  This information is not neeed by the pageserver
-// itself, it is only used for registering the pageserver with the control
-// plane and/or storage controller.
-//
-#[derive(PartialEq, Eq, Debug, serde::Serialize, serde::Deserialize)]
-pub struct NodeMetadata {
-    #[serde(rename = "host")]
-    pub postgres_host: String,
-    #[serde(rename = "port")]
-    pub postgres_port: u16,
-    pub http_host: String,
-    pub http_port: u16,
-
-    // Deployment tools may write fields to the metadata file beyond what we
-    // use in this type: this type intentionally only names fields that require.
-    #[serde(flatten)]
-    pub other: HashMap<String, serde_json::Value>,
-}

libs/pageserver_api/src/config/tests.rs

@@ -1,22 +0,0 @@
-use super::*;
-
-#[test]
-fn test_node_metadata_v1_backward_compatibilty() {
-    let v1 = serde_json::to_vec(&serde_json::json!({
-        "host": "localhost",
-        "port": 23,
-        "http_host": "localhost",
-        "http_port": 42,
-    }));
-
-    assert_eq!(
-        serde_json::from_slice::<NodeMetadata>(&v1.unwrap()).unwrap(),
-        NodeMetadata {
-            postgres_host: "localhost".to_string(),
-            postgres_port: 23,
-            http_host: "localhost".to_string(),
-            http_port: 42,
-            other: HashMap::new(),
-        }
-    )
-}

libs/pageserver_api/src/key.rs

@@ -1,6 +1,5 @@
 use anyhow::{bail, Result};
 use byteorder::{ByteOrder, BE};
-use bytes::BufMut;
 use postgres_ffi::relfile_utils::{FSM_FORKNUM, VISIBILITYMAP_FORKNUM};
 use postgres_ffi::{Oid, TransactionId};
 use serde::{Deserialize, Serialize};
@@ -22,107 +21,15 @@ pub struct Key {
     pub field6: u32,
 }
 
-/// The storage key size.
 pub const KEY_SIZE: usize = 18;
 
-/// The metadata key size. 2B fewer than the storage key size because field2 is not fully utilized.
-/// See [`Key::to_i128`] for more information on the encoding.
-pub const METADATA_KEY_SIZE: usize = 16;
-
-/// The key prefix start range for the metadata keys. All keys with the first byte >= 0x40 is a metadata key.
-pub const METADATA_KEY_BEGIN_PREFIX: u8 = 0x60;
-pub const METADATA_KEY_END_PREFIX: u8 = 0x7F;
-
-/// The (reserved) key prefix of relation sizes.
-pub const RELATION_SIZE_PREFIX: u8 = 0x61;
-
-/// The key prefix of AUX file keys.
-pub const AUX_KEY_PREFIX: u8 = 0x62;
-
-/// Check if the key falls in the range of metadata keys.
-pub const fn is_metadata_key_slice(key: &[u8]) -> bool {
-    key[0] >= METADATA_KEY_BEGIN_PREFIX && key[0] < METADATA_KEY_END_PREFIX
-}
-
 impl Key {
-    /// Check if the key falls in the range of metadata keys.
-    pub const fn is_metadata_key(&self) -> bool {
-        self.field1 >= METADATA_KEY_BEGIN_PREFIX && self.field1 < METADATA_KEY_END_PREFIX
-    }
-
-    /// Encode a metadata key to a storage key.
-    pub fn from_metadata_key_fixed_size(key: &[u8; METADATA_KEY_SIZE]) -> Self {
-        assert!(is_metadata_key_slice(key), "key not in metadata key range");
-        Key {
-            field1: key[0],
-            field2: u16::from_be_bytes(key[1..3].try_into().unwrap()) as u32,
-            field3: u32::from_be_bytes(key[3..7].try_into().unwrap()),
-            field4: u32::from_be_bytes(key[7..11].try_into().unwrap()),
-            field5: key[11],
-            field6: u32::from_be_bytes(key[12..16].try_into().unwrap()),
-        }
-    }
-
-    /// Encode a metadata key to a storage key.
-    pub fn from_metadata_key(key: &[u8]) -> Self {
-        Self::from_metadata_key_fixed_size(key.try_into().expect("expect 16 byte metadata key"))
-    }
-
-    /// Extract a metadata key to a writer. The result should always be 16 bytes.
-    pub fn extract_metadata_key_to_writer(&self, mut writer: impl BufMut) {
-        writer.put_u8(self.field1);
-        assert!(self.field2 <= 0xFFFF);
-        writer.put_u16(self.field2 as u16);
-        writer.put_u32(self.field3);
-        writer.put_u32(self.field4);
-        writer.put_u8(self.field5);
-        writer.put_u32(self.field6);
-    }
-
-    /// Get the range of metadata keys.
-    pub const fn metadata_key_range() -> Range<Self> {
-        Key {
-            field1: METADATA_KEY_BEGIN_PREFIX,
-            field2: 0,
-            field3: 0,
-            field4: 0,
-            field5: 0,
-            field6: 0,
-        }..Key {
-            field1: METADATA_KEY_END_PREFIX,
-            field2: 0,
-            field3: 0,
-            field4: 0,
-            field5: 0,
-            field6: 0,
-        }
-    }
-
-    /// Get the range of aux keys.
-    pub fn metadata_aux_key_range() -> Range<Self> {
-        Key {
-            field1: AUX_KEY_PREFIX,
-            field2: 0,
-            field3: 0,
-            field4: 0,
-            field5: 0,
-            field6: 0,
-        }..Key {
-            field1: AUX_KEY_PREFIX + 1,
-            field2: 0,
-            field3: 0,
-            field4: 0,
-            field5: 0,
-            field6: 0,
-        }
-    }
-
     /// 'field2' is used to store tablespaceid for relations and small enum numbers for other relish.
     /// As long as Neon does not support tablespace (because of lack of access to local file system),
     /// we can assume that only some predefined namespace OIDs are used which can fit in u16
     pub fn to_i128(&self) -> i128 {
         assert!(self.field2 < 0xFFFF || self.field2 == 0xFFFFFFFF || self.field2 == 0x22222222);
-        (((self.field1 & 0x7F) as i128) << 120)
+        (((self.field1 & 0xf) as i128) << 120)
             | (((self.field2 & 0xFFFF) as i128) << 104)
             | ((self.field3 as i128) << 72)
             | ((self.field4 as i128) << 40)
@@ -132,7 +39,7 @@ impl Key {
 
     pub const fn from_i128(x: i128) -> Self {
         Key {
-            field1: ((x >> 120) & 0x7F) as u8,
+            field1: ((x >> 120) & 0xf) as u8,
             field2: ((x >> 104) & 0xFFFF) as u32,
             field3: (x >> 72) as u32,
             field4: (x >> 40) as u32,
@@ -141,11 +48,11 @@ impl Key {
         }
     }
 
-    pub const fn next(&self) -> Key {
+    pub fn next(&self) -> Key {
         self.add(1)
     }
 
-    pub const fn add(&self, x: u32) -> Key {
+    pub fn add(&self, x: u32) -> Key {
         let mut key = *self;
 
         let r = key.field6.overflowing_add(x);
@@ -174,8 +81,6 @@ impl Key {
         key
     }
 
-    /// Convert a 18B slice to a key. This function should not be used for metadata keys because field2 is handled differently.
-    /// Use [`Key::from_metadata_key`] instead.
     pub fn from_slice(b: &[u8]) -> Self {
         Key {
             field1: b[0],
@@ -187,8 +92,6 @@ impl Key {
         }
     }
 
-    /// Convert a key to a 18B slice. This function should not be used for metadata keys because field2 is handled differently.
-    /// Use [`Key::extract_metadata_key_to_writer`] instead.
     pub fn write_to_byte_slice(&self, buf: &mut [u8]) {
         buf[0] = self.field1;
         BE::write_u32(&mut buf[1..5], self.field2);
@@ -572,17 +475,12 @@ pub const AUX_FILES_KEY: Key = Key {
 // Reverse mappings for a few Keys.
 // These are needed by WAL redo manager.
 
-/// Non inherited range for vectored get.
-pub const NON_INHERITED_RANGE: Range<Key> = AUX_FILES_KEY..AUX_FILES_KEY.next();
-/// Sparse keyspace range for vectored get. Missing key error will be ignored for this range.
-pub const NON_INHERITED_SPARSE_RANGE: Range<Key> = Key::metadata_key_range();
-
 // AUX_FILES currently stores only data for logical replication (slots etc), and
 // we don't preserve these on a branch because safekeepers can't follow timeline
 // switch (and generally it likely should be optional), so ignore these.
 #[inline(always)]
 pub fn is_inherited_key(key: Key) -> bool {
-    !NON_INHERITED_RANGE.contains(&key) && !NON_INHERITED_SPARSE_RANGE.contains(&key)
+    key != AUX_FILES_KEY
 }
 
 #[inline(always)]
@@ -658,14 +556,11 @@ impl std::str::FromStr for Key {
 mod tests {
     use std::str::FromStr;
 
-    use crate::key::is_metadata_key_slice;
     use crate::key::Key;
 
     use rand::Rng;
     use rand::SeedableRng;
 
-    use super::AUX_KEY_PREFIX;
-
     #[test]
     fn display_fromstr_bijection() {
         let mut rng = rand::rngs::StdRng::seed_from_u64(42);
@@ -681,16 +576,4 @@ mod tests {
 
         assert_eq!(key, Key::from_str(&format!("{key}")).unwrap());
     }
-
-    #[test]
-    fn test_metadata_keys() {
-        let mut metadata_key = vec![AUX_KEY_PREFIX];
-        metadata_key.extend_from_slice(&[0xFF; 15]);
-        let encoded_key = Key::from_metadata_key(&metadata_key);
-        let mut output_key = Vec::new();
-        encoded_key.extract_metadata_key_to_writer(&mut output_key);
-        assert_eq!(metadata_key, output_key);
-        assert!(encoded_key.is_metadata_key());
-        assert!(is_metadata_key_slice(&metadata_key));
-    }
 }

libs/pageserver_api/src/keyspace.rs

@@ -1,10 +1,7 @@
 use postgres_ffi::BLCKSZ;
 use std::ops::Range;
 
-use crate::{
-    key::Key,
-    shard::{ShardCount, ShardIdentity},
-};
+use crate::key::Key;
 use itertools::Itertools;
 
 ///
@@ -17,279 +14,44 @@ pub struct KeySpace {
     pub ranges: Vec<Range<Key>>,
 }
 
-/// A wrapper type for sparse keyspaces.
-#[derive(Clone, Debug, Default, PartialEq, Eq)]
-pub struct SparseKeySpace(pub KeySpace);
-
-/// Represents a contiguous half-open range of the keyspace, masked according to a particular
-/// ShardNumber's stripes: within this range of keys, only some "belong" to the current
-/// shard.
-///
-/// When we iterate over keys within this object, we will skip any keys that don't belong
-/// to this shard.
-///
-/// The start + end keys may not belong to the shard: these specify where layer files should
-/// start  + end, but we will never actually read/write those keys.
-#[derive(Clone, Debug, PartialEq, Eq)]
-pub struct ShardedRange<'a> {
-    pub shard_identity: &'a ShardIdentity,
-    pub range: Range<Key>,
-}
-
-// Calculate the size of a range within the blocks of the same relation, or spanning only the
-// top page in the previous relation's space.
-fn contiguous_range_len(range: &Range<Key>) -> u32 {
-    debug_assert!(is_contiguous_range(range));
-    if range.start.field6 == 0xffffffff {
-        range.end.field6 + 1
-    } else {
-        range.end.field6 - range.start.field6
-    }
-}
-
-/// Return true if this key range includes only keys in the same relation's data blocks, or
-/// just spanning one relation and the logical size (0xffffffff) block of the relation before it.
-///
-/// Contiguous in this context means we know the keys are in use _somewhere_, but it might not
-/// be on our shard.  Later in ShardedRange we do the extra work to figure out how much
-/// of a given contiguous range is present on one shard.
-///
-/// This matters, because:
-/// - Within such ranges, keys are used contiguously.  Outside such ranges it is sparse.
-/// - Within such ranges, we may calculate distances using simple subtraction of field6.
-fn is_contiguous_range(range: &Range<Key>) -> bool {
-    range.start.field1 == range.end.field1
-        && range.start.field2 == range.end.field2
-        && range.start.field3 == range.end.field3
-        && range.start.field4 == range.end.field4
-        && (range.start.field5 == range.end.field5
-            || (range.start.field6 == 0xffffffff && range.start.field5 + 1 == range.end.field5))
-}
-
-impl<'a> ShardedRange<'a> {
-    pub fn new(range: Range<Key>, shard_identity: &'a ShardIdentity) -> Self {
-        Self {
-            shard_identity,
-            range,
-        }
-    }
-
-    /// Break up this range into chunks, each of which has at least one local key in it if the
-    /// total range has at least one local key.
-    pub fn fragment(self, target_nblocks: u32) -> Vec<(u32, Range<Key>)> {
-        // Optimization for single-key case (e.g. logical size keys)
-        if self.range.end == self.range.start.add(1) {
-            return vec![(
-                if self.shard_identity.is_key_disposable(&self.range.start) {
-                    0
-                } else {
-                    1
-                },
-                self.range,
-            )];
-        }
-
-        if !is_contiguous_range(&self.range) {
-            // Ranges that span relations are not fragmented.  We only get these ranges as a result
-            // of operations that act on existing layers, so we trust that the existing range is
-            // reasonably small.
-            return vec![(u32::MAX, self.range)];
-        }
-
-        let mut fragments: Vec<(u32, Range<Key>)> = Vec::new();
-
-        let mut cursor = self.range.start;
-        while cursor < self.range.end {
-            let advance_by = self.distance_to_next_boundary(cursor);
-            let is_fragment_disposable = self.shard_identity.is_key_disposable(&cursor);
-
-            // If the previous fragment is undersized, then we seek to consume enough
-            // blocks to complete it.
-            let (want_blocks, merge_last_fragment) = match fragments.last_mut() {
-                Some(frag) if frag.0 < target_nblocks => (target_nblocks - frag.0, Some(frag)),
-                Some(frag) => {
-                    // Prev block is complete, want the full number.
-                    (
-                        target_nblocks,
-                        if is_fragment_disposable {
-                            // If this current range will be empty (not shard-local data), we will merge into previous
-                            Some(frag)
-                        } else {
-                            None
-                        },
-                    )
-                }
-                None => {
-                    // First iteration, want the full number
-                    (target_nblocks, None)
-                }
-            };
-
-            let advance_by = if is_fragment_disposable {
-                advance_by
-            } else {
-                std::cmp::min(advance_by, want_blocks)
-            };
-
-            let next_cursor = cursor.add(advance_by);
-
-            let this_frag = (
-                if is_fragment_disposable {
-                    0
-                } else {
-                    advance_by
-                },
-                cursor..next_cursor,
-            );
-            cursor = next_cursor;
-
-            if let Some(last_fragment) = merge_last_fragment {
-                // Previous fragment was short or this one is empty, merge into it
-                last_fragment.0 += this_frag.0;
-                last_fragment.1.end = this_frag.1.end;
-            } else {
-                fragments.push(this_frag);
-            }
-        }
-
-        fragments
-    }
-
-    /// Estimate the physical pages that are within this range, on this shard.  This returns
-    /// u32::MAX if the range spans relations: this return value should be interpreted as "large".
-    pub fn page_count(&self) -> u32 {
-        // Special cases for single keys like logical sizes
-        if self.range.end == self.range.start.add(1) {
-            return if self.shard_identity.is_key_disposable(&self.range.start) {
-                0
-            } else {
-                1
-            };
-        }
-
-        // We can only do an authentic calculation of contiguous key ranges
-        if !is_contiguous_range(&self.range) {
-            return u32::MAX;
-        }
-
-        // Special case for single sharded tenants: our logical and physical sizes are the same
-        if self.shard_identity.count < ShardCount::new(2) {
-            return contiguous_range_len(&self.range);
-        }
-
-        // Normal path: step through stripes and part-stripes in the range, evaluate whether each one belongs
-        // to Self, and add the stripe's block count to our total if so.
-        let mut result: u64 = 0;
-        let mut cursor = self.range.start;
-        while cursor < self.range.end {
-            // Count up to the next stripe_size boundary or end of range
-            let advance_by = self.distance_to_next_boundary(cursor);
-
-            // If this blocks in this stripe belong to us, add them to our count
-            if !self.shard_identity.is_key_disposable(&cursor) {
-                result += advance_by as u64;
-            }
-
-            cursor = cursor.add(advance_by);
-        }
-
-        if result > u32::MAX as u64 {
-            u32::MAX
-        } else {
-            result as u32
-        }
-    }
-
-    /// Advance the cursor to the next potential fragment boundary: this is either
-    /// a stripe boundary, or the end of the range.
-    fn distance_to_next_boundary(&self, cursor: Key) -> u32 {
-        let distance_to_range_end = contiguous_range_len(&(cursor..self.range.end));
-
-        if self.shard_identity.count < ShardCount::new(2) {
-            // Optimization: don't bother stepping through stripes if the tenant isn't sharded.
-            return distance_to_range_end;
-        }
-
-        if cursor.field6 == 0xffffffff {
-            // We are wrapping from one relation's logical size to the next relation's first data block
-            return 1;
-        }
-
-        let stripe_index = cursor.field6 / self.shard_identity.stripe_size.0;
-        let stripe_remainder = self.shard_identity.stripe_size.0
-            - (cursor.field6 - stripe_index * self.shard_identity.stripe_size.0);
-
-        if cfg!(debug_assertions) {
-            // We should never overflow field5 and field6 -- our callers check this earlier
-            // and would have returned their u32::MAX cases if the input range violated this.
-            let next_cursor = cursor.add(stripe_remainder);
-            debug_assert!(
-                next_cursor.field1 == cursor.field1
-                    && next_cursor.field2 == cursor.field2
-                    && next_cursor.field3 == cursor.field3
-                    && next_cursor.field4 == cursor.field4
-                    && next_cursor.field5 == cursor.field5
-            )
-        }
-
-        std::cmp::min(stripe_remainder, distance_to_range_end)
-    }
-
-    /// Whereas `page_count` estimates the number of pages physically in this range on this shard,
-    /// this function simply calculates the number of pages in the space, without accounting for those
-    /// pages that would not actually be stored on this node.
-    ///
-    /// Don't use this function in code that works with physical entities like layer files.
-    pub fn raw_size(range: &Range<Key>) -> u32 {
-        if is_contiguous_range(range) {
-            contiguous_range_len(range)
-        } else {
-            u32::MAX
-        }
-    }
-}
-
 impl KeySpace {
-    /// Create a key space with a single range.
-    pub fn single(key_range: Range<Key>) -> Self {
-        Self {
-            ranges: vec![key_range],
-        }
-    }
-
+    ///
     /// Partition a key space into roughly chunks of roughly 'target_size' bytes
     /// in each partition.
     ///
-    pub fn partition(&self, shard_identity: &ShardIdentity, target_size: u64) -> KeyPartitioning {
+    pub fn partition(&self, target_size: u64) -> KeyPartitioning {
         // Assume that each value is 8k in size.
-        let target_nblocks = (target_size / BLCKSZ as u64) as u32;
+        let target_nblocks = (target_size / BLCKSZ as u64) as usize;
 
         let mut parts = Vec::new();
         let mut current_part = Vec::new();
         let mut current_part_size: usize = 0;
         for range in &self.ranges {
-            // While doing partitioning, wrap the range in ShardedRange so that our size calculations
-            // will respect shard striping rather than assuming all keys within a range are present.
-            let range = ShardedRange::new(range.clone(), shard_identity);
-
-            // Chunk up the range into parts that each contain up to target_size local blocks
-            for (frag_on_shard_size, frag_range) in range.fragment(target_nblocks) {
-                // If appending the next contiguous range in the keyspace to the current
-                // partition would cause it to be too large, and our current partition
-                // covers at least one block that is physically present in this shard,
-                // then start a new partition
-                if current_part_size + frag_on_shard_size as usize > target_nblocks as usize
-                    && current_part_size > 0
-                {
-                    parts.push(KeySpace {
-                        ranges: current_part,
-                    });
-                    current_part = Vec::new();
-                    current_part_size = 0;
-                }
-                current_part.push(frag_range.start..frag_range.end);
-                current_part_size += frag_on_shard_size as usize;
+            // If appending the next contiguous range in the keyspace to the current
+            // partition would cause it to be too large, start a new partition.
+            let this_size = key_range_size(range) as usize;
+            if current_part_size + this_size > target_nblocks && !current_part.is_empty() {
+                parts.push(KeySpace {
+                    ranges: current_part,
+                });
+                current_part = Vec::new();
+                current_part_size = 0;
             }
+
+            // If the next range is larger than 'target_size', split it into
+            // 'target_size' chunks.
+            let mut remain_size = this_size;
+            let mut start = range.start;
+            while remain_size > target_nblocks {
+                let next = start.add(target_nblocks as u32);
+                parts.push(KeySpace {
+                    ranges: vec![start..next],
+                });
+                start = next;
+                remain_size -= target_nblocks
+            }
+            current_part.push(start..range.end);
+            current_part_size += remain_size;
         }
 
         // add last partition that wasn't full yet.
@@ -302,12 +64,8 @@ impl KeySpace {
         KeyPartitioning { parts }
     }
 
-    pub fn is_empty(&self) -> bool {
-        self.total_raw_size() == 0
-    }
-
     /// Merge another keyspace into the current one.
-    /// Note: the keyspaces must not overlap (enforced via assertions). To merge overlapping key ranges, use `KeySpaceRandomAccum`.
+    /// Note: the keyspaces must not ovelap (enforced via assertions)
     pub fn merge(&mut self, other: &KeySpace) {
         let all_ranges = self
             .ranges
@@ -336,13 +94,12 @@ impl KeySpace {
 
     /// Remove all keys in `other` from `self`.
     /// This can involve splitting or removing of existing ranges.
-    /// Returns the removed keyspace
-    pub fn remove_overlapping_with(&mut self, other: &KeySpace) -> KeySpace {
+    pub fn remove_overlapping_with(&mut self, other: &KeySpace) {
         let (self_start, self_end) = match (self.start(), self.end()) {
             (Some(start), Some(end)) => (start, end),
             _ => {
                 // self is empty
-                return KeySpace::default();
+                return;
             }
         };
 
@@ -355,37 +112,30 @@ impl KeySpace {
             .skip_while(|range| self_start >= range.end)
             .take_while(|range| self_end > range.start);
 
-        let mut removed_accum = KeySpaceRandomAccum::new();
         for range in other_ranges {
             while let Some(overlap_at) = self.overlaps_at(range) {
                 let overlapped = self.ranges[overlap_at].clone();
 
                 if overlapped.start < range.start && overlapped.end <= range.end {
                     // Higher part of the range is completely overlapped.
-                    removed_accum.add_range(range.start..self.ranges[overlap_at].end);
                     self.ranges[overlap_at].end = range.start;
                 }
                 if overlapped.start >= range.start && overlapped.end > range.end {
                     // Lower part of the range is completely overlapped.
-                    removed_accum.add_range(self.ranges[overlap_at].start..range.end);
                     self.ranges[overlap_at].start = range.end;
                 }
                 if overlapped.start < range.start && overlapped.end > range.end {
                     // Middle part of the range is overlapped.
-                    removed_accum.add_range(range.clone());
                     self.ranges[overlap_at].end = range.start;
                     self.ranges
                         .insert(overlap_at + 1, range.end..overlapped.end);
                 }
                 if overlapped.start >= range.start && overlapped.end <= range.end {
                     // Whole range is overlapped
-                    removed_accum.add_range(self.ranges[overlap_at].clone());
                     self.ranges.remove(overlap_at);
                 }
             }
         }
-
-        removed_accum.to_keyspace()
     }
 
     pub fn start(&self) -> Option<Key> {
@@ -396,11 +146,11 @@ impl KeySpace {
         self.ranges.last().map(|range| range.end)
     }
 
-    /// The size of the keyspace in pages, before accounting for sharding
-    pub fn total_raw_size(&self) -> usize {
+    #[allow(unused)]
+    pub fn total_size(&self) -> usize {
         self.ranges
             .iter()
-            .map(|range| ShardedRange::raw_size(range) as usize)
+            .map(|range| key_range_size(range) as usize)
             .sum()
     }
 
@@ -420,11 +170,6 @@ impl KeySpace {
     pub fn overlaps(&self, range: &Range<Key>) -> bool {
         self.overlaps_at(range).is_some()
     }
-
-    /// Check if the keyspace contains a key
-    pub fn contains(&self, key: &Key) -> bool {
-        self.overlaps(&(*key..key.next()))
-    }
 }
 
 ///
@@ -439,33 +184,10 @@ pub struct KeyPartitioning {
     pub parts: Vec<KeySpace>,
 }
 
-/// Represents a partitioning of the sparse key space.
-#[derive(Clone, Debug, Default)]
-pub struct SparseKeyPartitioning {
-    pub parts: Vec<SparseKeySpace>,
-}
-
 impl KeyPartitioning {
     pub fn new() -> Self {
         KeyPartitioning { parts: Vec::new() }
     }
-
-    /// Convert a key partitioning to a sparse partition.
-    pub fn into_sparse(self) -> SparseKeyPartitioning {
-        SparseKeyPartitioning {
-            parts: self.parts.into_iter().map(SparseKeySpace).collect(),
-        }
-    }
-}
-
-impl SparseKeyPartitioning {
-    /// Note: use this function with caution. Attempt to handle a sparse keyspace in the same way as a dense keyspace will
-    /// cause long/dead loops.
-    pub fn into_dense(self) -> KeyPartitioning {
-        KeyPartitioning {
-            parts: self.parts.into_iter().map(|x| x.0).collect(),
-        }
-    }
 }
 
 ///
@@ -497,7 +219,7 @@ impl KeySpaceAccum {
 
     #[inline(always)]
     pub fn add_range(&mut self, range: Range<Key>) {
-        self.size += ShardedRange::raw_size(&range) as u64;
+        self.size += key_range_size(&range) as u64;
 
         match self.accum.as_mut() {
             Some(accum) => {
@@ -529,9 +251,7 @@ impl KeySpaceAccum {
         std::mem::take(self).to_keyspace()
     }
 
-    // The total number of keys in this object, ignoring any sharding effects that might cause some of
-    // the keys to be omitted in storage on this shard.
-    pub fn raw_size(&self) -> u64 {
+    pub fn size(&self) -> u64 {
         self.size
     }
 }
@@ -587,19 +307,36 @@ impl KeySpaceRandomAccum {
     }
 }
 
+#[inline(always)]
+pub fn key_range_size(key_range: &Range<Key>) -> u32 {
+    let start = key_range.start;
+    let end = key_range.end;
+
+    if end.field1 != start.field1
+        || end.field2 != start.field2
+        || end.field3 != start.field3
+        || end.field4 != start.field4
+    {
+        return u32::MAX;
+    }
+
+    let start = (start.field5 as u64) << 32 | start.field6 as u64;
+    let end = (end.field5 as u64) << 32 | end.field6 as u64;
+
+    let diff = end - start;
+    if diff > u32::MAX as u64 {
+        u32::MAX
+    } else {
+        diff as u32
+    }
+}
+
 pub fn singleton_range(key: Key) -> Range<Key> {
     key..key.next()
 }
 
 #[cfg(test)]
 mod tests {
-    use rand::{RngCore, SeedableRng};
-
-    use crate::{
-        models::ShardParameters,
-        shard::{ShardCount, ShardNumber},
-    };
-
     use super::*;
     use std::fmt::Write;
 
@@ -642,17 +379,14 @@ mod tests {
             accum.add_range(range.clone());
         }
 
-        let expected_size: u64 = ranges
-            .iter()
-            .map(|r| ShardedRange::raw_size(r) as u64)
-            .sum();
-        assert_eq!(accum.raw_size(), expected_size);
+        let expected_size: u64 = ranges.iter().map(|r| key_range_size(r) as u64).sum();
+        assert_eq!(accum.size(), expected_size);
 
         assert_ks_eq(&accum.consume_keyspace(), ranges.clone());
-        assert_eq!(accum.raw_size(), 0);
+        assert_eq!(accum.size(), 0);
 
         assert_ks_eq(&accum.consume_keyspace(), vec![]);
-        assert_eq!(accum.raw_size(), 0);
+        assert_eq!(accum.size(), 0);
 
         for range in &ranges {
             accum.add_range(range.clone());
@@ -819,16 +553,7 @@ mod tests {
                 Key::from_i128(11)..Key::from_i128(13),
             ],
         };
-        let removed = key_space1.remove_overlapping_with(&key_space2);
-        let removed_expected = KeySpace {
-            ranges: vec![
-                Key::from_i128(2)..Key::from_i128(3),
-                Key::from_i128(6)..Key::from_i128(7),
-                Key::from_i128(11)..Key::from_i128(12),
-            ],
-        };
-        assert_eq!(removed, removed_expected);
-
+        key_space1.remove_overlapping_with(&key_space2);
         assert_eq!(
             key_space1.ranges,
             vec![
@@ -858,17 +583,7 @@ mod tests {
                 Key::from_i128(14)..Key::from_i128(17),
             ],
         };
-
-        let removed = key_space1.remove_overlapping_with(&key_space2);
-        let removed_expected = KeySpace {
-            ranges: vec![
-                Key::from_i128(3)..Key::from_i128(5),
-                Key::from_i128(8)..Key::from_i128(10),
-                Key::from_i128(14)..Key::from_i128(15),
-            ],
-        };
-        assert_eq!(removed, removed_expected);
-
+        key_space1.remove_overlapping_with(&key_space2);
         assert_eq!(
             key_space1.ranges,
             vec![
@@ -895,11 +610,7 @@ mod tests {
                 Key::from_i128(15)..Key::from_i128(17),
             ],
         };
-
-        let removed = key_space1.remove_overlapping_with(&key_space2);
-        let removed_expected = KeySpace::default();
-        assert_eq!(removed, removed_expected);
-
+        key_space1.remove_overlapping_with(&key_space2);
         assert_eq!(
             key_space1.ranges,
             vec![
@@ -926,17 +637,7 @@ mod tests {
         let key_space2 = KeySpace {
             ranges: vec![Key::from_i128(9)..Key::from_i128(19)],
         };
-
-        let removed = key_space1.remove_overlapping_with(&key_space2);
-        let removed_expected = KeySpace {
-            ranges: vec![
-                Key::from_i128(9)..Key::from_i128(10),
-                Key::from_i128(12)..Key::from_i128(15),
-                Key::from_i128(17)..Key::from_i128(19),
-            ],
-        };
-        assert_eq!(removed, removed_expected);
-
+        key_space1.remove_overlapping_with(&key_space2);
         assert_eq!(
             key_space1.ranges,
             vec![
@@ -949,412 +650,4 @@ mod tests {
             ]
         );
     }
-    #[test]
-    fn sharded_range_relation_gap() {
-        let shard_identity = ShardIdentity::new(
-            ShardNumber(0),
-            ShardCount::new(4),
-            ShardParameters::DEFAULT_STRIPE_SIZE,
-        )
-        .unwrap();
-
-        let range = ShardedRange::new(
-            Range {
-                start: Key::from_hex("000000067F00000005000040100300000000").unwrap(),
-                end: Key::from_hex("000000067F00000005000040130000004000").unwrap(),
-            },
-            &shard_identity,
-        );
-
-        // Key range spans relations, expect MAX
-        assert_eq!(range.page_count(), u32::MAX);
-    }
-
-    #[test]
-    fn shard_identity_keyspaces_single_key() {
-        let shard_identity = ShardIdentity::new(
-            ShardNumber(1),
-            ShardCount::new(4),
-            ShardParameters::DEFAULT_STRIPE_SIZE,
-        )
-        .unwrap();
-
-        let range = ShardedRange::new(
-            Range {
-                start: Key::from_hex("000000067f000000010000007000ffffffff").unwrap(),
-                end: Key::from_hex("000000067f00000001000000700100000000").unwrap(),
-            },
-            &shard_identity,
-        );
-        // Single-key range on logical size key
-        assert_eq!(range.page_count(), 1);
-    }
-
-    /// Test the helper that we use to identify ranges which go outside the data blocks of a single relation
-    #[test]
-    fn contiguous_range_check() {
-        assert!(!is_contiguous_range(
-            &(Key::from_hex("000000067f00000001000004df00fffffffe").unwrap()
-                ..Key::from_hex("000000067f00000001000004df0100000003").unwrap())
-        ),);
-
-        // The ranges goes all the way up to the 0xffffffff, including it: this is
-        // not considered a rel block range because 0xffffffff stores logical sizes,
-        // not blocks.
-        assert!(!is_contiguous_range(
-            &(Key::from_hex("000000067f00000001000004df00fffffffe").unwrap()
-                ..Key::from_hex("000000067f00000001000004df0100000000").unwrap())
-        ),);
-
-        // Keys within the normal data region of a relation
-        assert!(is_contiguous_range(
-            &(Key::from_hex("000000067f00000001000004df0000000000").unwrap()
-                ..Key::from_hex("000000067f00000001000004df0000000080").unwrap())
-        ),);
-
-        // The logical size key of one forkno, then some blocks in the next
-        assert!(is_contiguous_range(
-            &(Key::from_hex("000000067f00000001000004df00ffffffff").unwrap()
-                ..Key::from_hex("000000067f00000001000004df0100000080").unwrap())
-        ),);
-    }
-
-    #[test]
-    fn shard_identity_keyspaces_forkno_gap() {
-        let shard_identity = ShardIdentity::new(
-            ShardNumber(1),
-            ShardCount::new(4),
-            ShardParameters::DEFAULT_STRIPE_SIZE,
-        )
-        .unwrap();
-
-        let range = ShardedRange::new(
-            Range {
-                start: Key::from_hex("000000067f00000001000004df00fffffffe").unwrap(),
-                end: Key::from_hex("000000067f00000001000004df0100000003").unwrap(),
-            },
-            &shard_identity,
-        );
-
-        // Range spanning the end of one forkno and the start of the next: we do not attempt to
-        // calculate a valid size, because we have no way to know if they keys between start
-        // and end are actually in use.
-        assert_eq!(range.page_count(), u32::MAX);
-    }
-
-    #[test]
-    fn shard_identity_keyspaces_one_relation() {
-        for shard_number in 0..4 {
-            let shard_identity = ShardIdentity::new(
-                ShardNumber(shard_number),
-                ShardCount::new(4),
-                ShardParameters::DEFAULT_STRIPE_SIZE,
-            )
-            .unwrap();
-
-            let range = ShardedRange::new(
-                Range {
-                    start: Key::from_hex("000000067f00000001000000ae0000000000").unwrap(),
-                    end: Key::from_hex("000000067f00000001000000ae0000000001").unwrap(),
-                },
-                &shard_identity,
-            );
-
-            // Very simple case: range covering block zero of one relation, where that block maps to shard zero
-            if shard_number == 0 {
-                assert_eq!(range.page_count(), 1);
-            } else {
-                // Other shards should perceive the range's size as zero
-                assert_eq!(range.page_count(), 0);
-            }
-        }
-    }
-
-    /// Test helper: construct a ShardedRange and call fragment() on it, returning
-    /// the total page count in the range and the fragments.
-    fn do_fragment(
-        range_start: Key,
-        range_end: Key,
-        shard_identity: &ShardIdentity,
-        target_nblocks: u32,
-    ) -> (u32, Vec<(u32, Range<Key>)>) {
-        let range = ShardedRange::new(
-            Range {
-                start: range_start,
-                end: range_end,
-            },
-            shard_identity,
-        );
-
-        let page_count = range.page_count();
-        let fragments = range.fragment(target_nblocks);
-
-        // Invariant: we always get at least one fragment
-        assert!(!fragments.is_empty());
-
-        // Invariant: the first/last fragment start/end should equal the input start/end
-        assert_eq!(fragments.first().unwrap().1.start, range_start);
-        assert_eq!(fragments.last().unwrap().1.end, range_end);
-
-        if page_count > 0 {
-            // Invariant: every fragment must contain at least one shard-local page, if the
-            // total range contains at least one shard-local page
-            let all_nonzero = fragments.iter().all(|f| f.0 > 0);
-            if !all_nonzero {
-                eprintln!("Found a zero-length fragment: {:?}", fragments);
-            }
-            assert!(all_nonzero);
-        } else {
-            // A range with no shard-local pages should always be returned as a single fragment
-            assert_eq!(fragments, vec![(0, range_start..range_end)]);
-        }
-
-        // Invariant: fragments must be ordered and non-overlapping
-        let mut last: Option<Range<Key>> = None;
-        for frag in &fragments {
-            if let Some(last) = last {
-                assert!(frag.1.start >= last.end);
-                assert!(frag.1.start > last.start);
-            }
-            last = Some(frag.1.clone())
-        }
-
-        // Invariant: fragments respect target_nblocks
-        for frag in &fragments {
-            assert!(frag.0 == u32::MAX || frag.0 <= target_nblocks);
-        }
-
-        (page_count, fragments)
-    }
-
-    /// Really simple tests for fragment(), on a range that just contains a single stripe
-    /// for a single tenant.
-    #[test]
-    fn sharded_range_fragment_simple() {
-        let shard_identity = ShardIdentity::new(
-            ShardNumber(0),
-            ShardCount::new(4),
-            ShardParameters::DEFAULT_STRIPE_SIZE,
-        )
-        .unwrap();
-
-        // A range which we happen to know covers exactly one stripe which belongs to this shard
-        let input_start = Key::from_hex("000000067f00000001000000ae0000000000").unwrap();
-        let input_end = Key::from_hex("000000067f00000001000000ae0000008000").unwrap();
-
-        // Ask for stripe_size blocks, we get the whole stripe
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 32768),
-            (32768, vec![(32768, input_start..input_end)])
-        );
-
-        // Ask for more, we still get the whole stripe
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 10000000),
-            (32768, vec![(32768, input_start..input_end)])
-        );
-
-        // Ask for target_nblocks of half the stripe size, we get two halves
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 16384),
-            (
-                32768,
-                vec![
-                    (16384, input_start..input_start.add(16384)),
-                    (16384, input_start.add(16384)..input_end)
-                ]
-            )
-        );
-    }
-
-    #[test]
-    fn sharded_range_fragment_multi_stripe() {
-        let shard_identity = ShardIdentity::new(
-            ShardNumber(0),
-            ShardCount::new(4),
-            ShardParameters::DEFAULT_STRIPE_SIZE,
-        )
-        .unwrap();
-
-        // A range which covers multiple stripes, exactly one of which belongs to the current shard.
-        let input_start = Key::from_hex("000000067f00000001000000ae0000000000").unwrap();
-        let input_end = Key::from_hex("000000067f00000001000000ae0000020000").unwrap();
-        // Ask for all the blocks, get a fragment that covers the whole range but reports
-        // its size to be just the blocks belonging to our shard.
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 131072),
-            (32768, vec![(32768, input_start..input_end)])
-        );
-
-        // Ask for a sub-stripe quantity
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 16000),
-            (
-                32768,
-                vec![
-                    (16000, input_start..input_start.add(16000)),
-                    (16000, input_start.add(16000)..input_start.add(32000)),
-                    (768, input_start.add(32000)..input_end),
-                ]
-            )
-        );
-
-        // Try on a range that starts slightly after our owned stripe
-        assert_eq!(
-            do_fragment(input_start.add(1), input_end, &shard_identity, 131072),
-            (32767, vec![(32767, input_start.add(1)..input_end)])
-        );
-    }
-
-    /// Test our calculations work correctly when we start a range from the logical size key of
-    /// a previous relation.
-    #[test]
-    fn sharded_range_fragment_starting_from_logical_size() {
-        let input_start = Key::from_hex("000000067f00000001000000ae00ffffffff").unwrap();
-        let input_end = Key::from_hex("000000067f00000001000000ae0100008000").unwrap();
-
-        // Shard 0 owns the first stripe in the relation, and the preceding logical size is shard local too
-        let shard_identity = ShardIdentity::new(
-            ShardNumber(0),
-            ShardCount::new(4),
-            ShardParameters::DEFAULT_STRIPE_SIZE,
-        )
-        .unwrap();
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 0x10000),
-            (0x8001, vec![(0x8001, input_start..input_end)])
-        );
-
-        // Shard 1 does not own the first stripe in the relation, but it does own the logical size (all shards
-        // store all logical sizes)
-        let shard_identity = ShardIdentity::new(
-            ShardNumber(1),
-            ShardCount::new(4),
-            ShardParameters::DEFAULT_STRIPE_SIZE,
-        )
-        .unwrap();
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 0x10000),
-            (0x1, vec![(0x1, input_start..input_end)])
-        );
-    }
-
-    /// Test that ShardedRange behaves properly when used on un-sharded data
-    #[test]
-    fn sharded_range_fragment_unsharded() {
-        let shard_identity = ShardIdentity::unsharded();
-
-        let input_start = Key::from_hex("000000067f00000001000000ae0000000000").unwrap();
-        let input_end = Key::from_hex("000000067f00000001000000ae0000010000").unwrap();
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 0x8000),
-            (
-                0x10000,
-                vec![
-                    (0x8000, input_start..input_start.add(0x8000)),
-                    (0x8000, input_start.add(0x8000)..input_start.add(0x10000))
-                ]
-            )
-        );
-    }
-
-    #[test]
-    fn sharded_range_fragment_cross_relation() {
-        let shard_identity = ShardIdentity::unsharded();
-
-        // A range that spans relations: expect fragmentation to give up and return a u32::MAX size
-        let input_start = Key::from_hex("000000067f00000001000000ae0000000000").unwrap();
-        let input_end = Key::from_hex("000000068f00000001000000ae0000010000").unwrap();
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 0x8000),
-            (u32::MAX, vec![(u32::MAX, input_start..input_end),])
-        );
-
-        // Same, but using a sharded identity
-        let shard_identity = ShardIdentity::new(
-            ShardNumber(0),
-            ShardCount::new(4),
-            ShardParameters::DEFAULT_STRIPE_SIZE,
-        )
-        .unwrap();
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 0x8000),
-            (u32::MAX, vec![(u32::MAX, input_start..input_end),])
-        );
-    }
-
-    #[test]
-    fn sharded_range_fragment_tiny_nblocks() {
-        let shard_identity = ShardIdentity::unsharded();
-
-        // A range that spans relations: expect fragmentation to give up and return a u32::MAX size
-        let input_start = Key::from_hex("000000067F00000001000004E10000000000").unwrap();
-        let input_end = Key::from_hex("000000067F00000001000004E10000000038").unwrap();
-        assert_eq!(
-            do_fragment(input_start, input_end, &shard_identity, 16),
-            (
-                0x38,
-                vec![
-                    (16, input_start..input_start.add(16)),
-                    (16, input_start.add(16)..input_start.add(32)),
-                    (16, input_start.add(32)..input_start.add(48)),
-                    (8, input_start.add(48)..input_end),
-                ]
-            )
-        );
-    }
-
-    #[test]
-    fn sharded_range_fragment_fuzz() {
-        // Use a fixed seed: we don't want to explicitly pick values, but we do want
-        // the test to be reproducible.
-        let mut prng = rand::rngs::StdRng::seed_from_u64(0xdeadbeef);
-
-        for _i in 0..1000 {
-            let shard_identity = if prng.next_u32() % 2 == 0 {
-                ShardIdentity::unsharded()
-            } else {
-                let shard_count = prng.next_u32() % 127 + 1;
-                ShardIdentity::new(
-                    ShardNumber((prng.next_u32() % shard_count) as u8),
-                    ShardCount::new(shard_count as u8),
-                    ShardParameters::DEFAULT_STRIPE_SIZE,
-                )
-                .unwrap()
-            };
-
-            let target_nblocks = prng.next_u32() % 65536 + 1;
-
-            let start_offset = prng.next_u32() % 16384;
-
-            // Try ranges up to 4GiB in size, that are always at least 1
-            let range_size = prng.next_u32() % 8192 + 1;
-
-            // A range that spans relations: expect fragmentation to give up and return a u32::MAX size
-            let input_start = Key::from_hex("000000067F00000001000004E10000000000")
-                .unwrap()
-                .add(start_offset);
-            let input_end = input_start.add(range_size);
-
-            // This test's main success conditions are the invariants baked into do_fragment
-            let (_total_size, fragments) =
-                do_fragment(input_start, input_end, &shard_identity, target_nblocks);
-
-            // Pick a random key within the range and check it appears in the output
-            let example_key = input_start.add(prng.next_u32() % range_size);
-
-            // Panic on unwrap if it isn't found
-            let example_key_frag = fragments
-                .iter()
-                .find(|f| f.1.contains(&example_key))
-                .unwrap();
-
-            // Check that the fragment containing our random key has a nonzero size if
-            // that key is shard-local
-            let example_key_local = !shard_identity.is_key_disposable(&example_key);
-            if example_key_local {
-                assert!(example_key_frag.0 > 0);
-            }
-        }
-    }
 }

libs/pageserver_api/src/lib.rs

@@ -1,5 +1,6 @@
 #![deny(unsafe_code)]
 #![deny(clippy::undocumented_unsafe_blocks)]
+use const_format::formatcp;
 
 pub mod controller_api;
 pub mod key;
@@ -10,4 +11,7 @@ pub mod shard;
 /// Public API types
 pub mod upcall_api;
 
-pub mod config;
+pub const DEFAULT_PG_LISTEN_PORT: u16 = 64000;
+pub const DEFAULT_PG_LISTEN_ADDR: &str = formatcp!("127.0.0.1:{DEFAULT_PG_LISTEN_PORT}");
+pub const DEFAULT_HTTP_LISTEN_PORT: u16 = 9898;
+pub const DEFAULT_HTTP_LISTEN_ADDR: &str = formatcp!("127.0.0.1:{DEFAULT_HTTP_LISTEN_PORT}");

libs/pageserver_api/src/models.rs

@@ -1,4 +1,3 @@
-pub mod detach_ancestor;
 pub mod partitioning;
 pub mod utilization;
 
@@ -9,7 +8,6 @@ use std::{
     collections::HashMap,
     io::{BufRead, Read},
     num::{NonZeroU64, NonZeroUsize},
-    sync::atomic::AtomicUsize,
     time::{Duration, SystemTime},
 };
 
@@ -161,22 +159,6 @@ impl std::fmt::Debug for TenantState {
     }
 }
 
-/// A temporary lease to a specific lsn inside a timeline.
-/// Access to the lsn is guaranteed by the pageserver until the expiration indicated by `valid_until`.
-#[serde_as]
-#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
-pub struct LsnLease {
-    #[serde_as(as = "SystemTimeAsRfc3339Millis")]
-    pub valid_until: SystemTime,
-}
-
-serde_with::serde_conv!(
-    SystemTimeAsRfc3339Millis,
-    SystemTime,
-    |time: &SystemTime| humantime::format_rfc3339_millis(*time).to_string(),
-    |value: String| -> Result<_, humantime::TimestampError> { humantime::parse_rfc3339(&value) }
-);
-
 /// The only [`TenantState`] variants we could be `TenantState::Activating` from.
 #[derive(Clone, Copy, Debug, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
 pub enum ActivatingFrom {
@@ -305,7 +287,7 @@ pub struct TenantConfig {
     pub compaction_period: Option<String>,
     pub compaction_threshold: Option<usize>,
     // defer parsing compaction_algorithm, like eviction_policy
-    pub compaction_algorithm: Option<CompactionAlgorithmSettings>,
+    pub compaction_algorithm: Option<CompactionAlgorithm>,
     pub gc_horizon: Option<u64>,
     pub gc_period: Option<String>,
     pub image_creation_threshold: Option<usize>,
@@ -321,103 +303,6 @@ pub struct TenantConfig {
     pub lazy_slru_download: Option<bool>,
     pub timeline_get_throttle: Option<ThrottleConfig>,
     pub image_layer_creation_check_threshold: Option<u8>,
-    pub switch_aux_file_policy: Option<AuxFilePolicy>,
-}
-
-/// The policy for the aux file storage. It can be switched through `switch_aux_file_policy`
-/// tenant config. When the first aux file written, the policy will be persisted in the
-/// `index_part.json` file and has a limited migration path.
-///
-/// Currently, we only allow the following migration path:
-///
-/// Unset -> V1
-///       -> V2
-///       -> CrossValidation -> V2
-#[derive(
-    Eq,
-    PartialEq,
-    Debug,
-    Copy,
-    Clone,
-    strum_macros::EnumString,
-    strum_macros::Display,
-    serde_with::DeserializeFromStr,
-    serde_with::SerializeDisplay,
-)]
-#[strum(serialize_all = "kebab-case")]
-pub enum AuxFilePolicy {
-    /// V1 aux file policy: store everything in AUX_FILE_KEY
-    #[strum(ascii_case_insensitive)]
-    V1,
-    /// V2 aux file policy: store in the AUX_FILE keyspace
-    #[strum(ascii_case_insensitive)]
-    V2,
-    /// Cross validation runs both formats on the write path and does validation
-    /// on the read path.
-    #[strum(ascii_case_insensitive)]
-    CrossValidation,
-}
-
-impl AuxFilePolicy {
-    pub fn is_valid_migration_path(from: Option<Self>, to: Self) -> bool {
-        matches!(
-            (from, to),
-            (None, _) | (Some(AuxFilePolicy::CrossValidation), AuxFilePolicy::V2)
-        )
-    }
-
-    /// If a tenant writes aux files without setting `switch_aux_policy`, this value will be used.
-    pub fn default_tenant_config() -> Self {
-        Self::V1
-    }
-}
-
-/// The aux file policy memory flag. Users can store `Option<AuxFilePolicy>` into this atomic flag. 0 == unspecified.
-pub struct AtomicAuxFilePolicy(AtomicUsize);
-
-impl AtomicAuxFilePolicy {
-    pub fn new(policy: Option<AuxFilePolicy>) -> Self {
-        Self(AtomicUsize::new(
-            policy.map(AuxFilePolicy::to_usize).unwrap_or_default(),
-        ))
-    }
-
-    pub fn load(&self) -> Option<AuxFilePolicy> {
-        match self.0.load(std::sync::atomic::Ordering::Acquire) {
-            0 => None,
-            other => Some(AuxFilePolicy::from_usize(other)),
-        }
-    }
-
-    pub fn store(&self, policy: Option<AuxFilePolicy>) {
-        self.0.store(
-            policy.map(AuxFilePolicy::to_usize).unwrap_or_default(),
-            std::sync::atomic::Ordering::Release,
-        );
-    }
-}
-
-impl AuxFilePolicy {
-    pub fn to_usize(self) -> usize {
-        match self {
-            Self::V1 => 1,
-            Self::CrossValidation => 2,
-            Self::V2 => 3,
-        }
-    }
-
-    pub fn try_from_usize(this: usize) -> Option<Self> {
-        match this {
-            1 => Some(Self::V1),
-            2 => Some(Self::CrossValidation),
-            3 => Some(Self::V2),
-            _ => None,
-        }
-    }
-
-    pub fn from_usize(this: usize) -> Self {
-        Self::try_from_usize(this).unwrap()
-    }
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
@@ -438,30 +323,13 @@ impl EvictionPolicy {
     }
 }
 
-#[derive(
-    Eq,
-    PartialEq,
-    Debug,
-    Copy,
-    Clone,
-    strum_macros::EnumString,
-    strum_macros::Display,
-    serde_with::DeserializeFromStr,
-    serde_with::SerializeDisplay,
-)]
-#[strum(serialize_all = "kebab-case")]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(tag = "kind")]
 pub enum CompactionAlgorithm {
-    #[strum(disabled)]
-    NotSpecified,
     Legacy,
     Tiered,
 }
 
-#[derive(Eq, PartialEq, Debug, Clone, Serialize, Deserialize)]
-pub struct CompactionAlgorithmSettings {
-    pub kind: CompactionAlgorithm,
-}
-
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
 pub struct EvictionPolicyLayerAccessThreshold {
     #[serde(with = "humantime_serde")]
@@ -561,6 +429,7 @@ pub struct StatusResponse {
 #[derive(Serialize, Deserialize, Debug)]
 #[serde(deny_unknown_fields)]
 pub struct TenantLocationConfigRequest {
+    pub tenant_id: Option<TenantShardId>,
     #[serde(flatten)]
     pub config: LocationConfig, // as we have a flattened field, we should reject all unknown fields in it
 }
@@ -709,9 +578,6 @@ pub struct TimelineInfo {
     pub state: TimelineState,
 
     pub walreceiver_status: String,
-
-    /// The last aux file policy being used on this timeline
-    pub last_aux_file_policy: Option<AuxFilePolicy>,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -818,8 +684,6 @@ pub enum HistoricLayerInfo {
         lsn_end: Lsn,
         remote: bool,
         access_stats: LayerAccessStats,
-
-        l0: bool,
     },
     Image {
         layer_file_name: String,
@@ -855,16 +719,6 @@ impl HistoricLayerInfo {
         };
         *field = value;
     }
-    pub fn layer_file_size(&self) -> u64 {
-        match self {
-            HistoricLayerInfo::Delta {
-                layer_file_size, ..
-            } => *layer_file_size,
-            HistoricLayerInfo::Image {
-                layer_file_size, ..
-            } => *layer_file_size,
-        }
-    }
 }
 
 #[derive(Debug, Serialize, Deserialize)]
@@ -872,16 +726,6 @@ pub struct DownloadRemoteLayersTaskSpawnRequest {
     pub max_concurrent_downloads: NonZeroUsize,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
-pub struct IngestAuxFilesRequest {
-    pub aux_files: HashMap<String, String>,
-}
-
-#[derive(Debug, Serialize, Deserialize)]
-pub struct ListAuxFilesRequest {
-    pub lsn: Lsn,
-}
-
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct DownloadRemoteLayersTaskInfo {
     pub task_id: String,
@@ -903,15 +747,10 @@ pub struct TimelineGcRequest {
     pub gc_horizon: Option<u64>,
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct WalRedoManagerProcessStatus {
-    pub pid: u32,
-}
-
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct WalRedoManagerStatus {
     pub last_redo_at: Option<chrono::DateTime<chrono::Utc>>,
-    pub process: Option<WalRedoManagerProcessStatus>,
+    pub pid: Option<u32>,
 }
 
 /// The progress of a secondary tenant is mostly useful when doing a long running download: e.g. initiating
@@ -933,66 +772,6 @@ pub struct SecondaryProgress {
     pub bytes_total: u64,
 }
 
-#[derive(Serialize, Deserialize, Debug)]
-pub struct TenantScanRemoteStorageShard {
-    pub tenant_shard_id: TenantShardId,
-    pub generation: Option<u32>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Default)]
-pub struct TenantScanRemoteStorageResponse {
-    pub shards: Vec<TenantScanRemoteStorageShard>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone)]
-#[serde(rename_all = "snake_case")]
-pub enum TenantSorting {
-    ResidentSize,
-    MaxLogicalSize,
-}
-
-impl Default for TenantSorting {
-    fn default() -> Self {
-        Self::ResidentSize
-    }
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone)]
-pub struct TopTenantShardsRequest {
-    // How would you like to sort the tenants?
-    pub order_by: TenantSorting,
-
-    // How many results?
-    pub limit: usize,
-
-    // Omit tenants with more than this many shards (e.g. if this is the max number of shards
-    // that the caller would ever split to)
-    pub where_shards_lt: Option<ShardCount>,
-
-    // Omit tenants where the ordering metric is less than this (this is an optimization to
-    // let us quickly exclude numerous tiny shards)
-    pub where_gt: Option<u64>,
-}
-
-#[derive(Serialize, Deserialize, Debug, PartialEq, Eq)]
-pub struct TopTenantShardItem {
-    pub id: TenantShardId,
-
-    /// Total size of layers on local disk for all timelines in this tenant
-    pub resident_size: u64,
-
-    /// Total size of layers in remote storage for all timelines in this tenant
-    pub physical_size: u64,
-
-    /// The largest logical size of a timeline within this tenant
-    pub max_logical_size: u64,
-}
-
-#[derive(Serialize, Deserialize, Debug, Default)]
-pub struct TopTenantShardsResponse {
-    pub shards: Vec<TopTenantShardItem>,
-}
-
 pub mod virtual_file {
     #[derive(
         Copy,
@@ -1060,72 +839,39 @@ impl TryFrom<u8> for PagestreamBeMessageTag {
     }
 }
 
-// In the V2 protocol version, a GetPage request contains two LSN values:
-//
-// request_lsn: Get the page version at this point in time.  Lsn::Max is a special value that means
-// "get the latest version present". It's used by the primary server, which knows that no one else
-// is writing WAL. 'not_modified_since' must be set to a proper value even if request_lsn is
-// Lsn::Max. Standby servers use the current replay LSN as the request LSN.
-//
-// not_modified_since: Hint to the pageserver that the client knows that the page has not been
-// modified between 'not_modified_since' and the request LSN. It's always correct to set
-// 'not_modified_since equal' to 'request_lsn' (unless Lsn::Max is used as the 'request_lsn'), but
-// passing an earlier LSN can speed up the request, by allowing the pageserver to process the
-// request without waiting for 'request_lsn' to arrive.
-//
-// The legacy V1 interface contained only one LSN, and a boolean 'latest' flag. The V1 interface was
-// sufficient for the primary; the 'lsn' was equivalent to the 'not_modified_since' value, and
-// 'latest' was set to true. The V2 interface was added because there was no correct way for a
-// standby to request a page at a particular non-latest LSN, and also include the
-// 'not_modified_since' hint. That led to an awkward choice of either using an old LSN in the
-// request, if the standby knows that the page hasn't been modified since, and risk getting an error
-// if that LSN has fallen behind the GC horizon, or requesting the current replay LSN, which could
-// require the pageserver unnecessarily to wait for the WAL to arrive up to that point. The new V2
-// interface allows sending both LSNs, and let the pageserver do the right thing. There is no
-// difference in the responses between V1 and V2.
-//
-// The Request structs below reflect the V2 interface. If V1 is used, the parse function
-// maps the old format requests to the new format.
-//
-#[derive(Clone, Copy)]
-pub enum PagestreamProtocolVersion {
-    V1,
-    V2,
-}
-
 #[derive(Debug, PartialEq, Eq)]
 pub struct PagestreamExistsRequest {
-    pub request_lsn: Lsn,
-    pub not_modified_since: Lsn,
+    pub latest: bool,
+    pub lsn: Lsn,
     pub rel: RelTag,
 }
 
 #[derive(Debug, PartialEq, Eq)]
 pub struct PagestreamNblocksRequest {
-    pub request_lsn: Lsn,
-    pub not_modified_since: Lsn,
+    pub latest: bool,
+    pub lsn: Lsn,
     pub rel: RelTag,
 }
 
 #[derive(Debug, PartialEq, Eq)]
 pub struct PagestreamGetPageRequest {
-    pub request_lsn: Lsn,
-    pub not_modified_since: Lsn,
+    pub latest: bool,
+    pub lsn: Lsn,
     pub rel: RelTag,
     pub blkno: u32,
 }
 
 #[derive(Debug, PartialEq, Eq)]
 pub struct PagestreamDbSizeRequest {
-    pub request_lsn: Lsn,
-    pub not_modified_since: Lsn,
+    pub latest: bool,
+    pub lsn: Lsn,
     pub dbnode: u32,
 }
 
 #[derive(Debug, PartialEq, Eq)]
 pub struct PagestreamGetSlruSegmentRequest {
-    pub request_lsn: Lsn,
-    pub not_modified_since: Lsn,
+    pub latest: bool,
+    pub lsn: Lsn,
     pub kind: u8,
     pub segno: u32,
 }
@@ -1172,16 +918,14 @@ pub struct TenantHistorySize {
 }
 
 impl PagestreamFeMessage {
-    /// Serialize a compute -> pageserver message. This is currently only used in testing
-    /// tools. Always uses protocol version 2.
     pub fn serialize(&self) -> Bytes {
         let mut bytes = BytesMut::new();
 
         match self {
             Self::Exists(req) => {
                 bytes.put_u8(0);
-                bytes.put_u64(req.request_lsn.0);
-                bytes.put_u64(req.not_modified_since.0);
+                bytes.put_u8(u8::from(req.latest));
+                bytes.put_u64(req.lsn.0);
                 bytes.put_u32(req.rel.spcnode);
                 bytes.put_u32(req.rel.dbnode);
                 bytes.put_u32(req.rel.relnode);
@@ -1190,8 +934,8 @@ impl PagestreamFeMessage {
 
             Self::Nblocks(req) => {
                 bytes.put_u8(1);
-                bytes.put_u64(req.request_lsn.0);
-                bytes.put_u64(req.not_modified_since.0);
+                bytes.put_u8(u8::from(req.latest));
+                bytes.put_u64(req.lsn.0);
                 bytes.put_u32(req.rel.spcnode);
                 bytes.put_u32(req.rel.dbnode);
                 bytes.put_u32(req.rel.relnode);
@@ -1200,8 +944,8 @@ impl PagestreamFeMessage {
 
             Self::GetPage(req) => {
                 bytes.put_u8(2);
-                bytes.put_u64(req.request_lsn.0);
-                bytes.put_u64(req.not_modified_since.0);
+                bytes.put_u8(u8::from(req.latest));
+                bytes.put_u64(req.lsn.0);
                 bytes.put_u32(req.rel.spcnode);
                 bytes.put_u32(req.rel.dbnode);
                 bytes.put_u32(req.rel.relnode);
@@ -1211,15 +955,15 @@ impl PagestreamFeMessage {
 
             Self::DbSize(req) => {
                 bytes.put_u8(3);
-                bytes.put_u64(req.request_lsn.0);
-                bytes.put_u64(req.not_modified_since.0);
+                bytes.put_u8(u8::from(req.latest));
+                bytes.put_u64(req.lsn.0);
                 bytes.put_u32(req.dbnode);
             }
 
             Self::GetSlruSegment(req) => {
                 bytes.put_u8(4);
-                bytes.put_u64(req.request_lsn.0);
-                bytes.put_u64(req.not_modified_since.0);
+                bytes.put_u8(u8::from(req.latest));
+                bytes.put_u64(req.lsn.0);
                 bytes.put_u8(req.kind);
                 bytes.put_u32(req.segno);
             }
@@ -1228,40 +972,18 @@ impl PagestreamFeMessage {
         bytes.into()
     }
 
-    pub fn parse<R: std::io::Read>(
-        body: &mut R,
-        protocol_version: PagestreamProtocolVersion,
-    ) -> anyhow::Result<PagestreamFeMessage> {
+    pub fn parse<R: std::io::Read>(body: &mut R) -> anyhow::Result<PagestreamFeMessage> {
+        // TODO these gets can fail
+
         // these correspond to the NeonMessageTag enum in pagestore_client.h
         //
         // TODO: consider using protobuf or serde bincode for less error prone
         // serialization.
         let msg_tag = body.read_u8()?;
-
-        let (request_lsn, not_modified_since) = match protocol_version {
-            PagestreamProtocolVersion::V2 => (
-                Lsn::from(body.read_u64::<BigEndian>()?),
-                Lsn::from(body.read_u64::<BigEndian>()?),
-            ),
-            PagestreamProtocolVersion::V1 => {
-                // In the old protocol, each message starts with a boolean 'latest' flag,
-                // followed by 'lsn'. Convert that to the two LSNs, 'request_lsn' and
-                // 'not_modified_since', used in the new protocol version.
-                let latest = body.read_u8()? != 0;
-                let request_lsn = Lsn::from(body.read_u64::<BigEndian>()?);
-                if latest {
-                    (Lsn::MAX, request_lsn) // get latest version
-                } else {
-                    (request_lsn, request_lsn) // get version at specified LSN
-                }
-            }
-        };
-
-        // The rest of the messages are the same between V1 and V2
         match msg_tag {
             0 => Ok(PagestreamFeMessage::Exists(PagestreamExistsRequest {
-                request_lsn,
-                not_modified_since,
+                latest: body.read_u8()? != 0,
+                lsn: Lsn::from(body.read_u64::<BigEndian>()?),
                 rel: RelTag {
                     spcnode: body.read_u32::<BigEndian>()?,
                     dbnode: body.read_u32::<BigEndian>()?,
@@ -1270,8 +992,8 @@ impl PagestreamFeMessage {
                 },
             })),
             1 => Ok(PagestreamFeMessage::Nblocks(PagestreamNblocksRequest {
-                request_lsn,
-                not_modified_since,
+                latest: body.read_u8()? != 0,
+                lsn: Lsn::from(body.read_u64::<BigEndian>()?),
                 rel: RelTag {
                     spcnode: body.read_u32::<BigEndian>()?,
                     dbnode: body.read_u32::<BigEndian>()?,
@@ -1280,8 +1002,8 @@ impl PagestreamFeMessage {
                 },
             })),
             2 => Ok(PagestreamFeMessage::GetPage(PagestreamGetPageRequest {
-                request_lsn,
-                not_modified_since,
+                latest: body.read_u8()? != 0,
+                lsn: Lsn::from(body.read_u64::<BigEndian>()?),
                 rel: RelTag {
                     spcnode: body.read_u32::<BigEndian>()?,
                     dbnode: body.read_u32::<BigEndian>()?,
@@ -1291,14 +1013,14 @@ impl PagestreamFeMessage {
                 blkno: body.read_u32::<BigEndian>()?,
             })),
             3 => Ok(PagestreamFeMessage::DbSize(PagestreamDbSizeRequest {
-                request_lsn,
-                not_modified_since,
+                latest: body.read_u8()? != 0,
+                lsn: Lsn::from(body.read_u64::<BigEndian>()?),
                 dbnode: body.read_u32::<BigEndian>()?,
             })),
             4 => Ok(PagestreamFeMessage::GetSlruSegment(
                 PagestreamGetSlruSegmentRequest {
-                    request_lsn,
-                    not_modified_since,
+                    latest: body.read_u8()? != 0,
+                    lsn: Lsn::from(body.read_u64::<BigEndian>()?),
                     kind: body.read_u8()?,
                     segno: body.read_u32::<BigEndian>()?,
                 },
@@ -1418,7 +1140,6 @@ impl PagestreamBeMessage {
 #[cfg(test)]
 mod tests {
     use serde_json::json;
-    use std::str::FromStr;
 
     use super::*;
 
@@ -1427,8 +1148,8 @@ mod tests {
         // Test serialization/deserialization of PagestreamFeMessage
         let messages = vec![
             PagestreamFeMessage::Exists(PagestreamExistsRequest {
-                request_lsn: Lsn(4),
-                not_modified_since: Lsn(3),
+                latest: true,
+                lsn: Lsn(4),
                 rel: RelTag {
                     forknum: 1,
                     spcnode: 2,
@@ -1437,8 +1158,8 @@ mod tests {
                 },
             }),
             PagestreamFeMessage::Nblocks(PagestreamNblocksRequest {
-                request_lsn: Lsn(4),
-                not_modified_since: Lsn(4),
+                latest: false,
+                lsn: Lsn(4),
                 rel: RelTag {
                     forknum: 1,
                     spcnode: 2,
@@ -1447,8 +1168,8 @@ mod tests {
                 },
             }),
             PagestreamFeMessage::GetPage(PagestreamGetPageRequest {
-                request_lsn: Lsn(4),
-                not_modified_since: Lsn(3),
+                latest: true,
+                lsn: Lsn(4),
                 rel: RelTag {
                     forknum: 1,
                     spcnode: 2,
@@ -1458,16 +1179,14 @@ mod tests {
                 blkno: 7,
             }),
             PagestreamFeMessage::DbSize(PagestreamDbSizeRequest {
-                request_lsn: Lsn(4),
-                not_modified_since: Lsn(3),
+                latest: true,
+                lsn: Lsn(4),
                 dbnode: 7,
             }),
         ];
         for msg in messages {
             let bytes = msg.serialize();
-            let reconstructed =
-                PagestreamFeMessage::parse(&mut bytes.reader(), PagestreamProtocolVersion::V2)
-                    .unwrap();
+            let reconstructed = PagestreamFeMessage::parse(&mut bytes.reader()).unwrap();
             assert!(msg == reconstructed);
         }
     }
@@ -1626,69 +1345,4 @@ mod tests {
             assert_eq!(actual, expected, "example on {line}");
         }
     }
-
-    #[test]
-    fn test_aux_file_migration_path() {
-        assert!(AuxFilePolicy::is_valid_migration_path(
-            None,
-            AuxFilePolicy::V1
-        ));
-        assert!(AuxFilePolicy::is_valid_migration_path(
-            None,
-            AuxFilePolicy::V2
-        ));
-        assert!(AuxFilePolicy::is_valid_migration_path(
-            None,
-            AuxFilePolicy::CrossValidation
-        ));
-        // Self-migration is not a valid migration path, and the caller should handle it by itself.
-        assert!(!AuxFilePolicy::is_valid_migration_path(
-            Some(AuxFilePolicy::V1),
-            AuxFilePolicy::V1
-        ));
-        assert!(!AuxFilePolicy::is_valid_migration_path(
-            Some(AuxFilePolicy::V2),
-            AuxFilePolicy::V2
-        ));
-        assert!(!AuxFilePolicy::is_valid_migration_path(
-            Some(AuxFilePolicy::CrossValidation),
-            AuxFilePolicy::CrossValidation
-        ));
-        // Migrations not allowed
-        assert!(!AuxFilePolicy::is_valid_migration_path(
-            Some(AuxFilePolicy::CrossValidation),
-            AuxFilePolicy::V1
-        ));
-        assert!(!AuxFilePolicy::is_valid_migration_path(
-            Some(AuxFilePolicy::V1),
-            AuxFilePolicy::V2
-        ));
-        assert!(!AuxFilePolicy::is_valid_migration_path(
-            Some(AuxFilePolicy::V2),
-            AuxFilePolicy::V1
-        ));
-        assert!(!AuxFilePolicy::is_valid_migration_path(
-            Some(AuxFilePolicy::V2),
-            AuxFilePolicy::CrossValidation
-        ));
-        assert!(!AuxFilePolicy::is_valid_migration_path(
-            Some(AuxFilePolicy::V1),
-            AuxFilePolicy::CrossValidation
-        ));
-        // Migrations allowed
-        assert!(AuxFilePolicy::is_valid_migration_path(
-            Some(AuxFilePolicy::CrossValidation),
-            AuxFilePolicy::V2
-        ));
-    }
-
-    #[test]
-    fn test_aux_parse() {
-        assert_eq!(AuxFilePolicy::from_str("V2").unwrap(), AuxFilePolicy::V2);
-        assert_eq!(AuxFilePolicy::from_str("v2").unwrap(), AuxFilePolicy::V2);
-        assert_eq!(
-            AuxFilePolicy::from_str("cross-validation").unwrap(),
-            AuxFilePolicy::CrossValidation
-        );
-    }
 }

libs/pageserver_api/src/models/detach_ancestor.rs

@@ -1,6 +0,0 @@
-use utils::id::TimelineId;
-
-#[derive(Default, serde::Serialize)]
-pub struct AncestorDetached {
-    pub reparented_timelines: Vec<TimelineId>,
-}

libs/pageserver_api/src/models/partitioning.rs

@@ -1,11 +1,9 @@
 use utils::lsn::Lsn;
 
-use crate::keyspace::SparseKeySpace;
-
 #[derive(Debug, PartialEq, Eq)]
 pub struct Partitioning {
     pub keys: crate::keyspace::KeySpace,
-    pub sparse_keys: crate::keyspace::SparseKeySpace,
+
     pub at_lsn: Lsn,
 }
 
@@ -34,8 +32,6 @@ impl serde::Serialize for Partitioning {
         let mut map = serializer.serialize_map(Some(2))?;
         map.serialize_key("keys")?;
         map.serialize_value(&KeySpace(&self.keys))?;
-        map.serialize_key("sparse_keys")?;
-        map.serialize_value(&KeySpace(&self.sparse_keys.0))?;
         map.serialize_key("at_lsn")?;
         map.serialize_value(&WithDisplay(&self.at_lsn))?;
         map.end()
@@ -103,7 +99,6 @@ impl<'a> serde::Deserialize<'a> for Partitioning {
         #[derive(serde::Deserialize)]
         struct De {
             keys: KeySpace,
-            sparse_keys: KeySpace,
             #[serde_as(as = "serde_with::DisplayFromStr")]
             at_lsn: Lsn,
         }
@@ -112,7 +107,6 @@ impl<'a> serde::Deserialize<'a> for Partitioning {
         Ok(Self {
             at_lsn: de.at_lsn,
             keys: de.keys.0,
-            sparse_keys: SparseKeySpace(de.sparse_keys.0),
         })
     }
 }
@@ -139,12 +133,6 @@ mod tests {
                 "030000000000000000000000000000000003"
               ]
             ],
-            "sparse_keys": [
-              [
-                "620000000000000000000000000000000000",
-                "620000000000000000000000000000000003"
-              ]
-            ],
             "at_lsn": "0/2240160"
         }
         "#;

libs/pageserver_api/src/shard.rs

@@ -5,99 +5,21 @@ use crate::{
     models::ShardParameters,
 };
 use hex::FromHex;
-use postgres_ffi::relfile_utils::INIT_FORKNUM;
 use serde::{Deserialize, Serialize};
 use utils::id::TenantId;
 
-/// See docs/rfcs/031-sharding-static.md for an overview of sharding.
-///
-/// This module contains a variety of types used to represent the concept of sharding
-/// a Neon tenant across multiple physical shards.  Since there are quite a few of these,
-/// we provide an summary here.
-///
-/// Types used to describe shards:
-/// - [`ShardCount`] describes how many shards make up a tenant, plus the magic `unsharded` value
-///   which identifies a tenant which is not shard-aware.  This means its storage paths do not include
-///   a shard suffix.
-/// - [`ShardNumber`] is simply the zero-based index of a shard within a tenant.
-/// - [`ShardIndex`] is the 2-tuple of `ShardCount` and `ShardNumber`, it's just like a `TenantShardId`
-///   without the tenant ID.  This is useful for things that are implicitly scoped to a particular
-///   tenant, such as layer files.
-/// - [`ShardIdentity`]` is the full description of a particular shard's parameters, in sufficient
-///   detail to convert a [`Key`] to a [`ShardNumber`] when deciding where to write/read.
-/// - The [`ShardSlug`] is a terse formatter for ShardCount and ShardNumber, written as
-///   four hex digits.  An unsharded tenant is `0000`.
-/// - [`TenantShardId`] is the unique ID of a particular shard within a particular tenant
-///
-/// Types used to describe the parameters for data distribution in a sharded tenant:
-/// - [`ShardStripeSize`] controls how long contiguous runs of [`Key`]s (stripes) are when distributed across
-///   multiple shards.  Its value is given in 8kiB pages.
-/// - [`ShardLayout`] describes the data distribution scheme, and at time of writing is
-///   always zero: this is provided for future upgrades that might introduce different
-///   data distribution schemes.
-///
-/// Examples:
-/// - A legacy unsharded tenant has one shard with ShardCount(0), ShardNumber(0), and its slug is 0000
-/// - A single sharded tenant has one shard with ShardCount(1), ShardNumber(0), and its slug is 0001
-/// - In a tenant with 4 shards, each shard has ShardCount(N), ShardNumber(i) where i in 0..N-1 (inclusive),
-///   and their slugs are 0004, 0104, 0204, and 0304.
-
 #[derive(Ord, PartialOrd, Eq, PartialEq, Clone, Copy, Serialize, Deserialize, Debug, Hash)]
 pub struct ShardNumber(pub u8);
 
 #[derive(Ord, PartialOrd, Eq, PartialEq, Clone, Copy, Serialize, Deserialize, Debug, Hash)]
 pub struct ShardCount(u8);
 
-/// Combination of ShardNumber and ShardCount.  For use within the context of a particular tenant,
-/// when we need to know which shard we're dealing with, but do not need to know the full
-/// ShardIdentity (because we won't be doing any page->shard mapping), and do not need to know
-/// the fully qualified TenantShardId.
-#[derive(Eq, PartialEq, PartialOrd, Ord, Clone, Copy, Hash)]
-pub struct ShardIndex {
-    pub shard_number: ShardNumber,
-    pub shard_count: ShardCount,
-}
-
-/// The ShardIdentity contains enough information to map a [`Key`] to a [`ShardNumber`],
-/// and to check whether that [`ShardNumber`] is the same as the current shard.
-#[derive(Clone, Copy, Serialize, Deserialize, Eq, PartialEq, Debug)]
-pub struct ShardIdentity {
-    pub number: ShardNumber,
-    pub count: ShardCount,
-    pub stripe_size: ShardStripeSize,
-    layout: ShardLayout,
-}
-
-/// Formatting helper, for generating the `shard_id` label in traces.
-struct ShardSlug<'a>(&'a TenantShardId);
-
-/// TenantShardId globally identifies a particular shard in a particular tenant.
-///
-/// These are written as `<TenantId>-<ShardSlug>`, for example:
-///   # The second shard in a two-shard tenant
-///   072f1291a5310026820b2fe4b2968934-0102
-///
-/// If the `ShardCount` is _unsharded_, the `TenantShardId` is written without
-/// a shard suffix and is equivalent to the encoding of a `TenantId`: this enables
-/// an unsharded [`TenantShardId`] to be used interchangably with a [`TenantId`].
-///
-/// The human-readable encoding of an unsharded TenantShardId, such as used in API URLs,
-/// is both forward and backward compatible with TenantId: a legacy TenantId can be
-/// decoded as a TenantShardId, and when re-encoded it will be parseable
-/// as a TenantId.
-#[derive(Eq, PartialEq, PartialOrd, Ord, Clone, Copy, Hash)]
-pub struct TenantShardId {
-    pub tenant_id: TenantId,
-    pub shard_number: ShardNumber,
-    pub shard_count: ShardCount,
-}
-
 impl ShardCount {
     pub const MAX: Self = Self(u8::MAX);
 
     /// The internal value of a ShardCount may be zero, which means "1 shard, but use
     /// legacy format for TenantShardId that excludes the shard suffix", also known
-    /// as [`TenantShardId::unsharded`].
+    /// as `TenantShardId::unsharded`.
     ///
     /// This method returns the actual number of shards, i.e. if our internal value is
     /// zero, we return 1 (unsharded tenants have 1 shard).
@@ -116,16 +38,13 @@ impl ShardCount {
         self.0
     }
 
-    /// Whether the `ShardCount` is for an unsharded tenant, so uses one shard but
-    /// uses the legacy format for `TenantShardId`. See also the documentation for
-    /// [`Self::count`].
     pub fn is_unsharded(&self) -> bool {
         self.0 == 0
     }
 
     /// `v` may be zero, or the number of shards in the tenant.  `v` is what
     /// [`Self::literal`] would return.
-    pub const fn new(val: u8) -> Self {
+    pub fn new(val: u8) -> Self {
         Self(val)
     }
 }
@@ -134,6 +53,33 @@ impl ShardNumber {
     pub const MAX: Self = Self(u8::MAX);
 }
 
+/// TenantShardId identify the units of work for the Pageserver.
+///
+/// These are written as `<tenant_id>-<shard number><shard-count>`, for example:
+///
+///   # The second shard in a two-shard tenant
+///   072f1291a5310026820b2fe4b2968934-0102
+///
+/// Historically, tenants could not have multiple shards, and were identified
+/// by TenantId.  To support this, TenantShardId has a special legacy
+/// mode where `shard_count` is equal to zero: this represents a single-sharded
+/// tenant which should be written as a TenantId with no suffix.
+///
+/// The human-readable encoding of TenantShardId, such as used in API URLs,
+/// is both forward and backward compatible: a legacy TenantId can be
+/// decoded as a TenantShardId, and when re-encoded it will be parseable
+/// as a TenantId.
+///
+/// Note that the binary encoding is _not_ backward compatible, because
+/// at the time sharding is introduced, there are no existing binary structures
+/// containing TenantId that we need to handle.
+#[derive(Eq, PartialEq, PartialOrd, Ord, Clone, Copy, Hash)]
+pub struct TenantShardId {
+    pub tenant_id: TenantId,
+    pub shard_number: ShardNumber,
+    pub shard_count: ShardCount,
+}
+
 impl TenantShardId {
     pub fn unsharded(tenant_id: TenantId) -> Self {
         Self {
@@ -165,13 +111,10 @@ impl TenantShardId {
     }
 
     /// Convenience for code that has special behavior on the 0th shard.
-    pub fn is_shard_zero(&self) -> bool {
+    pub fn is_zero(&self) -> bool {
         self.shard_number == ShardNumber(0)
     }
 
-    /// The "unsharded" value is distinct from simply having a single shard: it represents
-    /// a tenant which is not shard-aware at all, and whose storage paths will not include
-    /// a shard suffix.
     pub fn is_unsharded(&self) -> bool {
         self.shard_number == ShardNumber(0) && self.shard_count.is_unsharded()
     }
@@ -207,6 +150,9 @@ impl TenantShardId {
     }
 }
 
+/// Formatting helper
+struct ShardSlug<'a>(&'a TenantShardId);
+
 impl<'a> std::fmt::Display for ShardSlug<'a> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         write!(
@@ -276,6 +222,16 @@ impl From<[u8; 18]> for TenantShardId {
     }
 }
 
+/// For use within the context of a particular tenant, when we need to know which
+/// shard we're dealing with, but do not need to know the full ShardIdentity (because
+/// we won't be doing any page->shard mapping), and do not need to know the fully qualified
+/// TenantShardId.
+#[derive(Eq, PartialEq, PartialOrd, Ord, Clone, Copy, Hash)]
+pub struct ShardIndex {
+    pub shard_number: ShardNumber,
+    pub shard_count: ShardCount,
+}
+
 impl ShardIndex {
     pub fn new(number: ShardNumber, count: ShardCount) -> Self {
         Self {
@@ -290,9 +246,6 @@ impl ShardIndex {
         }
     }
 
-    /// The "unsharded" value is distinct from simply having a single shard: it represents
-    /// a tenant which is not shard-aware at all, and whose storage paths will not include
-    /// a shard suffix.
     pub fn is_unsharded(&self) -> bool {
         self.shard_number == ShardNumber(0) && self.shard_count == ShardCount(0)
     }
@@ -360,8 +313,6 @@ impl Serialize for TenantShardId {
         if serializer.is_human_readable() {
             serializer.collect_str(self)
         } else {
-            // Note: while human encoding of [`TenantShardId`] is backward and forward
-            // compatible, this binary encoding is not.
             let mut packed: [u8; 18] = [0; 18];
             packed[0..16].clone_from_slice(&self.tenant_id.as_arr());
             packed[16] = self.shard_number.0;
@@ -439,6 +390,16 @@ const LAYOUT_BROKEN: ShardLayout = ShardLayout(255);
 /// Default stripe size in pages: 256MiB divided by 8kiB page size.
 const DEFAULT_STRIPE_SIZE: ShardStripeSize = ShardStripeSize(256 * 1024 / 8);
 
+/// The ShardIdentity contains the information needed for one member of map
+/// to resolve a key to a shard, and then check whether that shard is ==self.
+#[derive(Clone, Copy, Serialize, Deserialize, Eq, PartialEq, Debug)]
+pub struct ShardIdentity {
+    pub number: ShardNumber,
+    pub count: ShardCount,
+    pub stripe_size: ShardStripeSize,
+    layout: ShardLayout,
+}
+
 #[derive(thiserror::Error, Debug, PartialEq, Eq)]
 pub enum ShardConfigError {
     #[error("Invalid shard count")]
@@ -453,7 +414,7 @@ impl ShardIdentity {
     /// An identity with number=0 count=0 is a "none" identity, which represents legacy
     /// tenants.  Modern single-shard tenants should not use this: they should
     /// have number=0 count=1.
-    pub const fn unsharded() -> Self {
+    pub fn unsharded() -> Self {
         Self {
             number: ShardNumber(0),
             count: ShardCount(0),
@@ -478,9 +439,6 @@ impl ShardIdentity {
         }
     }
 
-    /// The "unsharded" value is distinct from simply having a single shard: it represents
-    /// a tenant which is not shard-aware at all, and whose storage paths will not include
-    /// a shard suffix.
     pub fn is_unsharded(&self) -> bool {
         self.number == ShardNumber(0) && self.count == ShardCount(0)
     }
@@ -529,8 +487,6 @@ impl ShardIdentity {
     }
 
     /// Return true if the key should be ingested by this shard
-    ///
-    /// Shards must ingest _at least_ keys which return true from this check.
     pub fn is_key_local(&self, key: &Key) -> bool {
         assert!(!self.is_broken());
         if self.count < ShardCount(2) || (key_is_shard0(key) && self.number == ShardNumber(0)) {
@@ -541,9 +497,7 @@ impl ShardIdentity {
     }
 
     /// Return true if the key should be discarded if found in this shard's
-    /// data store, e.g. during compaction after a split.
-    ///
-    /// Shards _may_ drop keys which return false here, but are not obliged to.
+    /// data store, e.g. during compaction after a split
     pub fn is_key_disposable(&self, key: &Key) -> bool {
         if key_is_shard0(key) {
             // Q: Why can't we dispose of shard0 content if we're not shard 0?
@@ -559,14 +513,6 @@ impl ShardIdentity {
         }
     }
 
-    /// Obtains the shard number and count combined into a `ShardIndex`.
-    pub fn shard_index(&self) -> ShardIndex {
-        ShardIndex {
-            shard_count: self.count,
-            shard_number: self.number,
-        }
-    }
-
     pub fn shard_slug(&self) -> String {
         if self.count > ShardCount(0) {
             format!("-{:02x}{:02x}", self.number.0, self.count.0)
@@ -577,7 +523,7 @@ impl ShardIdentity {
 
     /// Convenience for checking if this identity is the 0th shard in a tenant,
     /// for special cases on shard 0 such as ingesting relation sizes.
-    pub fn is_shard_zero(&self) -> bool {
+    pub fn is_zero(&self) -> bool {
         self.number == ShardNumber(0)
     }
 }
@@ -660,13 +606,7 @@ fn key_is_shard0(key: &Key) -> bool {
     // relation pages are distributed to shards other than shard zero. Everything else gets
     // stored on shard 0.  This guarantees that shard 0 can independently serve basebackup
     // requests, and any request other than those for particular blocks in relations.
-    //
-    // The only exception to this rule is "initfork" data -- this relates to postgres's UNLOGGED table
-    // type. These are special relations, usually with only 0 or 1 blocks, and we store them on shard 0
-    // because they must be included in basebackups.
-    let is_initfork = key.field5 == INIT_FORKNUM;
-
-    !is_rel_block_key(key) || is_initfork
+    !is_rel_block_key(key)
 }
 
 /// Provide the same result as the function in postgres `hashfn.h` with the same name

libs/postgres_backend/src/lib.rs

@@ -820,11 +820,10 @@ impl<IO: AsyncRead + AsyncWrite + Unpin> PostgresBackend<IO> {
         Ok(ProcessMsgResult::Continue)
     }
 
-    /// - Log as info/error result of handling COPY stream and send back
-    ///   ErrorResponse if that makes sense.
-    /// - Shutdown the stream if we got Terminate.
-    /// - Then close the connection because we don't handle exiting from COPY
-    ///   stream normally.
+    /// Log as info/error result of handling COPY stream and send back
+    /// ErrorResponse if that makes sense. Shutdown the stream if we got
+    /// Terminate. TODO: transition into waiting for Sync msg if we initiate the
+    /// close.
     pub async fn handle_copy_stream_end(&mut self, end: CopyStreamHandlerEnd) {
         use CopyStreamHandlerEnd::*;
 
@@ -850,6 +849,10 @@ impl<IO: AsyncRead + AsyncWrite + Unpin> PostgresBackend<IO> {
             }
         }
 
+        if let Terminate = &end {
+            self.state = ProtoState::Closed;
+        }
+
         let err_to_send_and_errcode = match &end {
             ServerInitiated(_) => Some((end.to_string(), SQLSTATE_SUCCESSFUL_COMPLETION)),
             Other(_) => Some((format!("{end:#}"), SQLSTATE_INTERNAL_ERROR)),
@@ -879,12 +882,6 @@ impl<IO: AsyncRead + AsyncWrite + Unpin> PostgresBackend<IO> {
                 error!("failed to send ErrorResponse: {}", ee);
             }
         }
-
-        // Proper COPY stream finishing to continue using the connection is not
-        // implemented at the server side (we don't need it so far). To prevent
-        // further usages of the connection, close it.
-        self.framed.shutdown().await.ok();
-        self.state = ProtoState::Closed;
     }
 }
 

libs/postgres_connection/src/lib.rs

@@ -178,13 +178,6 @@ impl PgConnectionConfig {
     }
 }
 
-impl fmt::Display for PgConnectionConfig {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        // The password is intentionally hidden and not part of this display string.
-        write!(f, "postgresql://{}:{}", self.host, self.port)
-    }
-}
-
 impl fmt::Debug for PgConnectionConfig {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         // We want `password: Some(REDACTED-STRING)`, not `password: Some("REDACTED-STRING")`

libs/postgres_ffi/src/lib.rs

@@ -118,9 +118,7 @@ pub use v14::bindings::{TimeLineID, TimestampTz, XLogRecPtr, XLogSegNo};
 // Likewise for these, although the assumption that these don't change is a little more iffy.
 pub use v14::bindings::{MultiXactOffset, MultiXactStatus};
 pub use v14::bindings::{PageHeaderData, XLogRecord};
-pub use v14::xlog_utils::{
-    XLOG_SIZE_OF_XLOG_LONG_PHD, XLOG_SIZE_OF_XLOG_RECORD, XLOG_SIZE_OF_XLOG_SHORT_PHD,
-};
+pub use v14::xlog_utils::{XLOG_SIZE_OF_XLOG_RECORD, XLOG_SIZE_OF_XLOG_SHORT_PHD};
 
 pub use v14::bindings::{CheckPoint, ControlFileData};
 

libs/postgres_ffi/src/xlog_utils.rs

@@ -331,10 +331,7 @@ impl CheckPoint {
     /// Returns 'true' if the XID was updated.
     pub fn update_next_xid(&mut self, xid: u32) -> bool {
         // nextXid should be greater than any XID in WAL, so increment provided XID and check for wraparround.
-        let mut new_xid = std::cmp::max(
-            xid.wrapping_add(1),
-            pg_constants::FIRST_NORMAL_TRANSACTION_ID,
-        );
+        let mut new_xid = std::cmp::max(xid.wrapping_add(1), pg_constants::FIRST_NORMAL_TRANSACTION_ID);
         // To reduce number of metadata checkpoints, we forward align XID on XID_CHECKPOINT_INTERVAL.
         // XID_CHECKPOINT_INTERVAL should not be larger than BLCKSZ*CLOG_XACTS_PER_BYTE
         new_xid =
@@ -370,16 +367,8 @@ pub fn generate_wal_segment(segno: u64, system_id: u64, lsn: Lsn) -> Result<Byte
     let seg_off = lsn.segment_offset(WAL_SEGMENT_SIZE);
 
     let first_page_only = seg_off < XLOG_BLCKSZ;
-    // If first records starts in the middle of the page, pretend in page header
-    // there is a fake record which ends where first real record starts. This
-    // makes pg_waldump etc happy.
-    let (shdr_rem_len, infoflags) = if first_page_only && seg_off > 0 {
-        assert!(seg_off >= XLOG_SIZE_OF_XLOG_LONG_PHD);
-        // xlp_rem_len doesn't include page header, hence the subtraction.
-        (
-            seg_off - XLOG_SIZE_OF_XLOG_LONG_PHD,
-            pg_constants::XLP_FIRST_IS_CONTRECORD,
-        )
+    let (shdr_rem_len, infoflags) = if first_page_only {
+        (seg_off, pg_constants::XLP_FIRST_IS_CONTRECORD)
     } else {
         (0, 0)
     };
@@ -408,22 +397,20 @@ pub fn generate_wal_segment(segno: u64, system_id: u64, lsn: Lsn) -> Result<Byte
 
     if !first_page_only {
         let block_offset = lsn.page_offset_in_segment(WAL_SEGMENT_SIZE) as usize;
-        // see comments above about XLP_FIRST_IS_CONTRECORD and xlp_rem_len.
-        let (xlp_rem_len, xlp_info) = if page_off > 0 {
-            assert!(page_off >= XLOG_SIZE_OF_XLOG_SHORT_PHD as u64);
-            (
-                (page_off - XLOG_SIZE_OF_XLOG_SHORT_PHD as u64) as u32,
-                pg_constants::XLP_FIRST_IS_CONTRECORD,
-            )
-        } else {
-            (0, 0)
-        };
         let header = XLogPageHeaderData {
             xlp_magic: XLOG_PAGE_MAGIC as u16,
-            xlp_info,
+            xlp_info: if page_off >= pg_constants::SIZE_OF_PAGE_HEADER as u64 {
+                pg_constants::XLP_FIRST_IS_CONTRECORD
+            } else {
+                0
+            },
             xlp_tli: PG_TLI,
             xlp_pageaddr: lsn.page_lsn().0,
-            xlp_rem_len,
+            xlp_rem_len: if page_off >= pg_constants::SIZE_OF_PAGE_HEADER as u64 {
+                page_off as u32
+            } else {
+                0u32
+            },
             ..Default::default() // Put 0 in padding fields.
         };
         let hdr_bytes = header.encode()?;

libs/postgres_ffi/wal_craft/src/lib.rs

@@ -4,9 +4,7 @@ use log::*;
 use postgres::types::PgLsn;
 use postgres::Client;
 use postgres_ffi::{WAL_SEGMENT_SIZE, XLOG_BLCKSZ};
-use postgres_ffi::{
-    XLOG_SIZE_OF_XLOG_LONG_PHD, XLOG_SIZE_OF_XLOG_RECORD, XLOG_SIZE_OF_XLOG_SHORT_PHD,
-};
+use postgres_ffi::{XLOG_SIZE_OF_XLOG_RECORD, XLOG_SIZE_OF_XLOG_SHORT_PHD};
 use std::path::{Path, PathBuf};
 use std::process::Command;
 use std::time::{Duration, Instant};
@@ -264,21 +262,11 @@ fn craft_internal<C: postgres::GenericClient>(
         intermediate_lsns.insert(0, initial_lsn);
     }
 
-    // Some records may be not flushed, e.g. non-transactional logical messages. Flush now.
+    // Some records may be not flushed, e.g. non-transactional logical messages.
     //
-    // If the previous WAL record ended exactly at page boundary, pg_current_wal_insert_lsn
-    // returns the position just after the page header on the next page. That's where the next
-    // record will be inserted. But the page header hasn't actually been written to the WAL
-    // yet, and if you try to flush it, you get a "request to flush past end of generated WAL"
-    // error. Because of that, if the insert location is just after a page header, back off to
-    // previous page boundary.
-    let mut lsn = u64::from(client.pg_current_wal_insert_lsn()?);
-    if lsn % WAL_SEGMENT_SIZE as u64 == XLOG_SIZE_OF_XLOG_LONG_PHD as u64 {
-        lsn -= XLOG_SIZE_OF_XLOG_LONG_PHD as u64;
-    } else if lsn % XLOG_BLCKSZ as u64 == XLOG_SIZE_OF_XLOG_SHORT_PHD as u64 {
-        lsn -= XLOG_SIZE_OF_XLOG_SHORT_PHD as u64;
-    }
-    client.execute("select neon_xlogflush($1)", &[&PgLsn::from(lsn)])?;
+    // Note: this is broken if pg_current_wal_insert_lsn is at page boundary
+    // because pg_current_wal_insert_lsn skips page headers.
+    client.execute("select neon_xlogflush(pg_current_wal_insert_lsn())", &[])?;
     Ok(intermediate_lsns)
 }
 
@@ -332,70 +320,61 @@ impl Crafter for LastWalRecordXlogSwitchEndsOnPageBoundary {
 
         client.execute("CREATE table t(x int)", &[])?;
 
-        // Add padding so the XLOG_SWITCH record ends exactly on XLOG_BLCKSZ boundary.  We
-        // will use carefully-sized logical messages to advance WAL insert location such
-        // that there is just enough space on the page for the XLOG_SWITCH record.
-        loop {
-            // We start with measuring how much WAL it takes for one logical message,
-            // considering all alignments and headers.
+        // Add padding so the XLOG_SWITCH record ends exactly on XLOG_BLCKSZ boundary.
+        // We will use logical message as the padding. We start with detecting how much WAL
+        // it takes for one logical message, considering all alignments and headers.
+        let base_wal_advance = {
             let before_lsn = client.pg_current_wal_insert_lsn()?;
+            // Small non-empty message bigger than few bytes is more likely than an empty
+            // message to have the same format as the big padding message.
             client.execute(
                 "SELECT pg_logical_emit_message(false, 'swch', REPEAT('a', 10))",
                 &[],
             )?;
-            let after_lsn = client.pg_current_wal_insert_lsn()?;
-
-            // Did the record cross a page boundary? If it did, start over. Crossing a
-            // page boundary adds to the apparent size of the record because of the page
-            // header, which throws off the calculation.
-            if u64::from(before_lsn) / XLOG_BLCKSZ as u64
-                != u64::from(after_lsn) / XLOG_BLCKSZ as u64
-            {
-                continue;
-            }
-            // base_size is the size of a logical message without the payload
-            let base_size = u64::from(after_lsn) - u64::from(before_lsn) - 10;
-
-            // Is there enough space on the page for another logical message and an
-            // XLOG_SWITCH? If not, start over.
-            let page_remain = XLOG_BLCKSZ as u64 - u64::from(after_lsn) % XLOG_BLCKSZ as u64;
-            if page_remain < base_size + XLOG_SIZE_OF_XLOG_RECORD as u64 {
-                continue;
-            }
-
-            // We will write another logical message, such that after the logical message
-            // record, there will be space for exactly one XLOG_SWITCH. How large should
-            // the logical message's payload be? An XLOG_SWITCH record has no data => its
-            // size is exactly XLOG_SIZE_OF_XLOG_RECORD.
-            let repeats = page_remain - base_size - XLOG_SIZE_OF_XLOG_RECORD as u64;
-
-            client.execute(
-                "SELECT pg_logical_emit_message(false, 'swch', REPEAT('a', $1))",
-                &[&(repeats as i32)],
-            )?;
-            info!(
-                "current_wal_insert_lsn={}, XLOG_SIZE_OF_XLOG_RECORD={}",
-                client.pg_current_wal_insert_lsn()?,
-                XLOG_SIZE_OF_XLOG_RECORD
-            );
-
-            // Emit the XLOG_SWITCH
-            let before_xlog_switch = client.pg_current_wal_insert_lsn()?;
-            let xlog_switch_record_end: PgLsn =
-                client.query_one("SELECT pg_switch_wal()", &[])?.get(0);
-
-            if u64::from(xlog_switch_record_end) as usize % XLOG_BLCKSZ
-                != XLOG_SIZE_OF_XLOG_SHORT_PHD
-            {
-                warn!(
-                    "XLOG_SWITCH message ended not on page boundary: {}, offset = {}, repeating",
-                    xlog_switch_record_end,
-                    u64::from(xlog_switch_record_end) as usize % XLOG_BLCKSZ
-                );
-                continue;
-            }
-            return Ok(vec![before_xlog_switch, xlog_switch_record_end]);
+            // The XLOG_SWITCH record has no data => its size is exactly XLOG_SIZE_OF_XLOG_RECORD.
+            (u64::from(client.pg_current_wal_insert_lsn()?) - u64::from(before_lsn)) as usize
+                + XLOG_SIZE_OF_XLOG_RECORD
+        };
+        let mut remaining_lsn =
+            XLOG_BLCKSZ - u64::from(client.pg_current_wal_insert_lsn()?) as usize % XLOG_BLCKSZ;
+        if remaining_lsn < base_wal_advance {
+            remaining_lsn += XLOG_BLCKSZ;
         }
+        let repeats = 10 + remaining_lsn - base_wal_advance;
+        info!(
+            "current_wal_insert_lsn={}, remaining_lsn={}, base_wal_advance={}, repeats={}",
+            client.pg_current_wal_insert_lsn()?,
+            remaining_lsn,
+            base_wal_advance,
+            repeats
+        );
+        client.execute(
+            "SELECT pg_logical_emit_message(false, 'swch', REPEAT('a', $1))",
+            &[&(repeats as i32)],
+        )?;
+        info!(
+            "current_wal_insert_lsn={}, XLOG_SIZE_OF_XLOG_RECORD={}",
+            client.pg_current_wal_insert_lsn()?,
+            XLOG_SIZE_OF_XLOG_RECORD
+        );
+
+        // Emit the XLOG_SWITCH
+        let before_xlog_switch = client.pg_current_wal_insert_lsn()?;
+        let xlog_switch_record_end: PgLsn = client.query_one("SELECT pg_switch_wal()", &[])?.get(0);
+        let next_segment = PgLsn::from(0x0200_0000);
+        ensure!(
+            xlog_switch_record_end < next_segment,
+            "XLOG_SWITCH record ended on or after the expected segment boundary: {} > {}",
+            xlog_switch_record_end,
+            next_segment
+        );
+        ensure!(
+            u64::from(xlog_switch_record_end) as usize % XLOG_BLCKSZ == XLOG_SIZE_OF_XLOG_SHORT_PHD,
+            "XLOG_SWITCH message ended not on page boundary: {}, offset = {}",
+            xlog_switch_record_end,
+            u64::from(xlog_switch_record_end) as usize % XLOG_BLCKSZ
+        );
+        Ok(vec![before_xlog_switch, xlog_switch_record_end])
     }
 }
 

libs/remote_storage/Cargo.toml

@@ -38,7 +38,6 @@ azure_storage_blobs.workspace = true
 futures-util.workspace = true
 http-types.workspace = true
 itertools.workspace = true
-sync_wrapper = { workspace = true, features = ["futures"] }
 
 [dev-dependencies]
 camino-tempfile.workspace = true

libs/remote_storage/src/azure_blob.rs

@@ -3,7 +3,6 @@
 use std::borrow::Cow;
 use std::collections::HashMap;
 use std::env;
-use std::io;
 use std::num::NonZeroU32;
 use std::pin::Pin;
 use std::str::FromStr;
@@ -21,7 +20,6 @@ use azure_storage_blobs::blob::CopyStatus;
 use azure_storage_blobs::prelude::ClientBuilder;
 use azure_storage_blobs::{blob::operations::GetBlobBuilder, prelude::ContainerClient};
 use bytes::Bytes;
-use futures::future::Either;
 use futures::stream::Stream;
 use futures_util::StreamExt;
 use futures_util::TryStreamExt;
@@ -130,12 +128,12 @@ impl AzureBlobStorage {
         let kind = RequestKind::Get;
 
         let _permit = self.permit(kind, cancel).await?;
-        let cancel_or_timeout = crate::support::cancel_or_timeout(self.timeout, cancel.clone());
-        let cancel_or_timeout_ = crate::support::cancel_or_timeout(self.timeout, cancel.clone());
 
         let mut etag = None;
         let mut last_modified = None;
         let mut metadata = HashMap::new();
+        // TODO give proper streaming response instead of buffering into RAM
+        // https://github.com/neondatabase/neon/issues/5563
 
         let download = async {
             let response = builder
@@ -154,46 +152,39 @@ impl AzureBlobStorage {
                 Err(_elapsed) => Err(DownloadError::Timeout),
             });
 
-            let mut response = Box::pin(response);
+            let mut response = std::pin::pin!(response);
 
-            let Some(part) = response.next().await else {
+            let mut bufs = Vec::new();
+            while let Some(part) = response.next().await {
+                let part = part?;
+                if etag.is_none() {
+                    etag = Some(part.blob.properties.etag);
+                }
+                if last_modified.is_none() {
+                    last_modified = Some(part.blob.properties.last_modified.into());
+                }
+                if let Some(blob_meta) = part.blob.metadata {
+                    metadata.extend(blob_meta.iter().map(|(k, v)| (k.to_owned(), v.to_owned())));
+                }
+                let data = part
+                    .data
+                    .collect()
+                    .await
+                    .map_err(|e| DownloadError::Other(e.into()))?;
+                bufs.push(data);
+            }
+
+            if bufs.is_empty() {
                 return Err(DownloadError::Other(anyhow::anyhow!(
-                    "Azure GET response contained no response body"
+                    "Azure GET response contained no buffers"
                 )));
-            };
-            let part = part?;
-            if etag.is_none() {
-                etag = Some(part.blob.properties.etag);
             }
-            if last_modified.is_none() {
-                last_modified = Some(part.blob.properties.last_modified.into());
-            }
-            if let Some(blob_meta) = part.blob.metadata {
-                metadata.extend(blob_meta.iter().map(|(k, v)| (k.to_owned(), v.to_owned())));
-            }
-
             // unwrap safety: if these were None, bufs would be empty and we would have returned an error already
             let etag = etag.unwrap();
             let last_modified = last_modified.unwrap();
 
-            let tail_stream = response
-                .map(|part| match part {
-                    Ok(part) => Either::Left(part.data.map(|r| r.map_err(io::Error::other))),
-                    Err(e) => {
-                        Either::Right(futures::stream::once(async { Err(io::Error::other(e)) }))
-                    }
-                })
-                .flatten();
-            let stream = part
-                .data
-                .map(|r| r.map_err(io::Error::other))
-                .chain(sync_wrapper::SyncStream::new(tail_stream));
-            //.chain(SyncStream::from_pin(Box::pin(tail_stream)));
-
-            let download_stream = crate::support::DownloadStream::new(cancel_or_timeout_, stream);
-
             Ok(Download {
-                download_stream: Box::pin(download_stream),
+                download_stream: Box::pin(futures::stream::iter(bufs.into_iter().map(Ok))),
                 etag,
                 last_modified,
                 metadata: Some(StorageMetadata(metadata)),
@@ -202,10 +193,7 @@ impl AzureBlobStorage {
 
         tokio::select! {
             bufs = download => bufs,
-            cancel_or_timeout = cancel_or_timeout => match cancel_or_timeout {
-                TimeoutOrCancel::Timeout => Err(DownloadError::Timeout),
-                TimeoutOrCancel::Cancel => Err(DownloadError::Cancelled),
-            },
+            _ = cancel.cancelled() => Err(DownloadError::Cancelled),
         }
     }
 

libs/remote_storage/src/lib.rs

@@ -21,13 +21,11 @@ use std::{
     fmt::Debug,
     num::{NonZeroU32, NonZeroUsize},
     pin::Pin,
-    str::FromStr,
     sync::Arc,
     time::{Duration, SystemTime},
 };
 
 use anyhow::{bail, Context};
-use aws_sdk_s3::types::StorageClass;
 use camino::{Utf8Path, Utf8PathBuf};
 
 use bytes::Bytes;
@@ -55,11 +53,11 @@ pub use error::{DownloadError, TimeTravelError, TimeoutOrCancel};
 /// ~3500 PUT/COPY/POST/DELETE or 5500 GET/HEAD S3 requests
 /// <https://aws.amazon.com/premiumsupport/knowledge-center/s3-request-limit-avoid-throttling/>
 pub const DEFAULT_REMOTE_STORAGE_S3_CONCURRENCY_LIMIT: usize = 100;
-/// Set this limit analogously to the S3 limit
+/// We set this a little bit low as we currently buffer the entire file into RAM
 ///
 /// Here, a limit of max 20k concurrent connections was noted.
 /// <https://learn.microsoft.com/en-us/answers/questions/1301863/is-there-any-limitation-to-concurrent-connections>
-pub const DEFAULT_REMOTE_STORAGE_AZURE_CONCURRENCY_LIMIT: usize = 100;
+pub const DEFAULT_REMOTE_STORAGE_AZURE_CONCURRENCY_LIMIT: usize = 30;
 /// No limits on the client side, which currenltly means 1000 for AWS S3.
 /// <https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjectsV2.html#API_ListObjectsV2_RequestSyntax>
 pub const DEFAULT_MAX_KEYS_PER_LIST_RESPONSE: Option<i32> = None;
@@ -136,11 +134,6 @@ impl RemotePath {
     pub fn strip_prefix(&self, p: &RemotePath) -> Result<&Utf8Path, std::path::StripPrefixError> {
         self.0.strip_prefix(&p.0)
     }
-
-    pub fn add_trailing_slash(&self) -> Self {
-        // Unwrap safety inputs are guararnteed to be valid UTF-8
-        Self(format!("{}/", self.0).try_into().unwrap())
-    }
 }
 
 /// We don't need callers to be able to pass arbitrary delimiters: just control
@@ -164,21 +157,47 @@ pub struct Listing {
 /// providing basic CRUD operations for storage files.
 #[allow(async_fn_in_trait)]
 pub trait RemoteStorage: Send + Sync + 'static {
-    /// List objects in remote storage, with semantics matching AWS S3's ListObjectsV2.
-    /// (see `<https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjectsV2.html>`)
-    ///
-    /// Note that the prefix is relative to any `prefix_in_bucket` configured for the client, not
-    /// from the absolute root of the bucket.
-    ///
-    /// `mode` configures whether to use a delimiter.  Without a delimiter all keys
-    /// within the prefix are listed in the `keys` of the result.  With a delimiter, any "directories" at the top level of
-    /// the prefix are returned in the `prefixes` of the result, and keys in the top level of the prefix are
-    /// returned in `keys` ().
-    ///
-    /// `max_keys` controls the maximum number of keys that will be returned.  If this is None, this function
-    /// will iteratively call listobjects until it runs out of keys.  Note that this is not safe to use on
-    /// unlimted size buckets, as the full list of objects is allocated into a monolithic data structure.
+    /// Lists all top level subdirectories for a given prefix
+    /// Note: here we assume that if the prefix is passed it was obtained via remote_object_id
+    /// which already takes into account any kind of global prefix (prefix_in_bucket for S3 or storage_root for LocalFS)
+    /// so this method doesnt need to.
+    async fn list_prefixes(
+        &self,
+        prefix: Option<&RemotePath>,
+        cancel: &CancellationToken,
+    ) -> Result<Vec<RemotePath>, DownloadError> {
+        let result = self
+            .list(prefix, ListingMode::WithDelimiter, None, cancel)
+            .await?
+            .prefixes;
+        Ok(result)
+    }
+    /// Lists all files in directory "recursively"
+    /// (not really recursively, because AWS has a flat namespace)
+    /// Note: This is subtely different than list_prefixes,
+    /// because it is for listing files instead of listing
+    /// names sharing common prefixes.
+    /// For example,
+    /// list_files("foo/bar") = ["foo/bar/cat123.txt",
+    /// "foo/bar/cat567.txt", "foo/bar/dog123.txt", "foo/bar/dog456.txt"]
+    /// whereas,
+    /// list_prefixes("foo/bar/") = ["cat", "dog"]
+    /// See `test_real_s3.rs` for more details.
     ///
+    /// max_keys limits max number of keys returned; None means unlimited.
+    async fn list_files(
+        &self,
+        prefix: Option<&RemotePath>,
+        max_keys: Option<NonZeroU32>,
+        cancel: &CancellationToken,
+    ) -> Result<Vec<RemotePath>, DownloadError> {
+        let result = self
+            .list(prefix, ListingMode::NoDelimiter, max_keys, cancel)
+            .await?
+            .keys;
+        Ok(result)
+    }
+
     async fn list(
         &self,
         prefix: Option<&RemotePath>,
@@ -317,6 +336,41 @@ impl<Other: RemoteStorage> GenericRemoteStorage<Arc<Other>> {
         }
     }
 
+    // A function for listing all the files in a "directory"
+    // Example:
+    // list_files("foo/bar") = ["foo/bar/a.txt", "foo/bar/b.txt"]
+    //
+    // max_keys limits max number of keys returned; None means unlimited.
+    pub async fn list_files(
+        &self,
+        folder: Option<&RemotePath>,
+        max_keys: Option<NonZeroU32>,
+        cancel: &CancellationToken,
+    ) -> Result<Vec<RemotePath>, DownloadError> {
+        match self {
+            Self::LocalFs(s) => s.list_files(folder, max_keys, cancel).await,
+            Self::AwsS3(s) => s.list_files(folder, max_keys, cancel).await,
+            Self::AzureBlob(s) => s.list_files(folder, max_keys, cancel).await,
+            Self::Unreliable(s) => s.list_files(folder, max_keys, cancel).await,
+        }
+    }
+
+    // lists common *prefixes*, if any of files
+    // Example:
+    // list_prefixes("foo123","foo567","bar123","bar432") = ["foo", "bar"]
+    pub async fn list_prefixes(
+        &self,
+        prefix: Option<&RemotePath>,
+        cancel: &CancellationToken,
+    ) -> Result<Vec<RemotePath>, DownloadError> {
+        match self {
+            Self::LocalFs(s) => s.list_prefixes(prefix, cancel).await,
+            Self::AwsS3(s) => s.list_prefixes(prefix, cancel).await,
+            Self::AzureBlob(s) => s.list_prefixes(prefix, cancel).await,
+            Self::Unreliable(s) => s.list_prefixes(prefix, cancel).await,
+        }
+    }
+
     /// See [`RemoteStorage::upload`]
     pub async fn upload(
         &self,
@@ -565,7 +619,6 @@ pub struct S3Config {
     /// See [`DEFAULT_REMOTE_STORAGE_S3_CONCURRENCY_LIMIT`] for more details.
     pub concurrency_limit: NonZeroUsize,
     pub max_keys_per_list_response: Option<i32>,
-    pub upload_storage_class: Option<StorageClass>,
 }
 
 impl Debug for S3Config {
@@ -694,18 +747,6 @@ impl RemoteStorageConfig {
                     endpoint,
                     concurrency_limit,
                     max_keys_per_list_response,
-                    upload_storage_class: toml
-                        .get("upload_storage_class")
-                        .map(|prefix_in_bucket| -> anyhow::Result<_> {
-                            let s = parse_toml_string("upload_storage_class", prefix_in_bucket)?;
-                            let storage_class = StorageClass::from_str(&s).expect("infallible");
-                            #[allow(deprecated)]
-                            if matches!(storage_class, StorageClass::Unknown(_)) {
-                                bail!("Specified storage class unknown to SDK: '{s}'. Allowed values: {:?}", StorageClass::values());
-                            }
-                            Ok(storage_class)
-                        })
-                        .transpose()?,
                 })
             }
             (_, _, _, Some(_), None) => {

libs/remote_storage/src/local_fs.rs

@@ -5,9 +5,11 @@
 //! volume is mounted to the local FS.
 
 use std::{
-    collections::HashSet,
+    borrow::Cow,
+    future::Future,
     io::ErrorKind,
     num::NonZeroU32,
+    pin::Pin,
     time::{Duration, SystemTime, UNIX_EPOCH},
 };
 
@@ -20,11 +22,11 @@ use tokio::{
     io::{self, AsyncReadExt, AsyncSeekExt, AsyncWriteExt},
 };
 use tokio_util::{io::ReaderStream, sync::CancellationToken};
-use utils::crashsafe::path_with_suffix_extension;
+use tracing::*;
+use utils::{crashsafe::path_with_suffix_extension, fs_ext::is_directory_empty};
 
 use crate::{
     Download, DownloadError, Listing, ListingMode, RemotePath, TimeTravelError, TimeoutOrCancel,
-    REMOTE_STORAGE_PREFIX_SEPARATOR,
 };
 
 use super::{RemoteStorage, StorageMetadata};
@@ -91,47 +93,7 @@ impl LocalFs {
 
     #[cfg(test)]
     async fn list_all(&self) -> anyhow::Result<Vec<RemotePath>> {
-        use std::{future::Future, pin::Pin};
-        fn get_all_files<'a, P>(
-            directory_path: P,
-        ) -> Pin<Box<dyn Future<Output = anyhow::Result<Vec<Utf8PathBuf>>> + Send + Sync + 'a>>
-        where
-            P: AsRef<Utf8Path> + Send + Sync + 'a,
-        {
-            Box::pin(async move {
-                let directory_path = directory_path.as_ref();
-                if directory_path.exists() {
-                    if directory_path.is_dir() {
-                        let mut paths = Vec::new();
-                        let mut dir_contents = fs::read_dir(directory_path).await?;
-                        while let Some(dir_entry) = dir_contents.next_entry().await? {
-                            let file_type = dir_entry.file_type().await?;
-                            let entry_path =
-                                Utf8PathBuf::from_path_buf(dir_entry.path()).map_err(|pb| {
-                                    anyhow::Error::msg(format!(
-                                        "non-Unicode path: {}",
-                                        pb.to_string_lossy()
-                                    ))
-                                })?;
-                            if file_type.is_symlink() {
-                                tracing::debug!("{entry_path:?} is a symlink, skipping")
-                            } else if file_type.is_dir() {
-                                paths.extend(get_all_files(&entry_path).await?.into_iter())
-                            } else {
-                                paths.push(entry_path);
-                            }
-                        }
-                        Ok(paths)
-                    } else {
-                        bail!("Path {directory_path:?} is not a directory")
-                    }
-                } else {
-                    Ok(Vec::new())
-                }
-            })
-        }
-
-        Ok(get_all_files(&self.storage_root)
+        Ok(get_all_files(&self.storage_root, true)
             .await?
             .into_iter()
             .map(|path| {
@@ -158,14 +120,6 @@ impl LocalFs {
         // S3 object list prefixes can be arbitrary strings, but when reading
         // the local filesystem we need a directory to start calling read_dir on.
         let mut initial_dir = full_path.clone();
-
-        // If there's no trailing slash, we have to start looking from one above: even if
-        // `initial_dir` is a directory, we should still list any prefixes in the parent
-        // that start with the same string.
-        if !full_path.to_string().ends_with('/') {
-            initial_dir.pop();
-        }
-
         loop {
             // Did we make it to the root?
             if initial_dir.parent().is_none() {
@@ -341,66 +295,61 @@ impl RemoteStorage for LocalFs {
         let op = async {
             let mut result = Listing::default();
 
-            // Filter out directories: in S3 directories don't exist, only the keys within them do.
-            let keys = self
-                .list_recursive(prefix)
+            if let ListingMode::NoDelimiter = mode {
+                let keys = self
+                    .list_recursive(prefix)
+                    .await
+                    .map_err(DownloadError::Other)?;
+
+                result.keys = keys
+                    .into_iter()
+                    .filter(|k| {
+                        let path = k.with_base(&self.storage_root);
+                        !path.is_dir()
+                    })
+                    .collect();
+
+                if let Some(max_keys) = max_keys {
+                    result.keys.truncate(max_keys.get() as usize);
+                }
+
+                return Ok(result);
+            }
+
+            let path = match prefix {
+                Some(prefix) => Cow::Owned(prefix.with_base(&self.storage_root)),
+                None => Cow::Borrowed(&self.storage_root),
+            };
+
+            let prefixes_to_filter = get_all_files(path.as_ref(), false)
                 .await
                 .map_err(DownloadError::Other)?;
-            let keys = keys
-                .into_iter()
-                .filter(|k| {
-                    let path = k.with_base(&self.storage_root);
-                    !path.is_dir()
-                })
-                .collect();
 
-            if let ListingMode::NoDelimiter = mode {
-                result.keys = keys;
-            } else {
-                let mut prefixes = HashSet::new();
-                for key in keys {
-                    // If the part after the prefix includes a "/", take only the first part and put it in `prefixes`.
-                    let relative_key = if let Some(prefix) = prefix {
-                        let mut prefix = prefix.clone();
-                        // We only strip the dirname of the prefix, so that when we strip it from the start of keys we
-                        // end up with full file/dir names.
-                        let prefix_full_local_path = prefix.with_base(&self.storage_root);
-                        let has_slash = prefix.0.to_string().ends_with('/');
-                        let strip_prefix = if prefix_full_local_path.is_dir() && has_slash {
-                            prefix
-                        } else {
-                            prefix.0.pop();
-                            prefix
-                        };
-
-                        RemotePath::new(key.strip_prefix(&strip_prefix).unwrap()).unwrap()
-                    } else {
-                        key
-                    };
-
-                    let relative_key = format!("{}", relative_key);
-                    if relative_key.contains(REMOTE_STORAGE_PREFIX_SEPARATOR) {
-                        let first_part = relative_key
-                            .split(REMOTE_STORAGE_PREFIX_SEPARATOR)
-                            .next()
-                            .unwrap()
-                            .to_owned();
-                        prefixes.insert(first_part);
-                    } else {
-                        result
-                            .keys
-                            .push(RemotePath::from_string(&relative_key).unwrap());
-                    }
+            // filter out empty directories to mirror s3 behavior.
+            for prefix in prefixes_to_filter {
+                if prefix.is_dir()
+                    && is_directory_empty(&prefix)
+                        .await
+                        .map_err(DownloadError::Other)?
+                {
+                    continue;
+                }
+
+                let stripped = prefix
+                    .strip_prefix(&self.storage_root)
+                    .context("Failed to strip prefix")
+                    .and_then(RemotePath::new)
+                    .expect(
+                        "We list files for storage root, hence should be able to remote the prefix",
+                    );
+
+                if prefix.is_dir() {
+                    result.prefixes.push(stripped);
+                } else {
+                    result.keys.push(stripped);
                 }
-                result.prefixes = prefixes
-                    .into_iter()
-                    .map(|s| RemotePath::from_string(&s).unwrap())
-                    .collect();
             }
 
-            if let Some(max_keys) = max_keys {
-                result.keys.truncate(max_keys.get() as usize);
-            }
             Ok(result)
         };
 
@@ -611,6 +560,50 @@ fn storage_metadata_path(original_path: &Utf8Path) -> Utf8PathBuf {
     path_with_suffix_extension(original_path, "metadata")
 }
 
+fn get_all_files<'a, P>(
+    directory_path: P,
+    recursive: bool,
+) -> Pin<Box<dyn Future<Output = anyhow::Result<Vec<Utf8PathBuf>>> + Send + Sync + 'a>>
+where
+    P: AsRef<Utf8Path> + Send + Sync + 'a,
+{
+    Box::pin(async move {
+        let directory_path = directory_path.as_ref();
+        if directory_path.exists() {
+            if directory_path.is_dir() {
+                let mut paths = Vec::new();
+                let mut dir_contents = fs::read_dir(directory_path).await?;
+                while let Some(dir_entry) = dir_contents.next_entry().await? {
+                    let file_type = dir_entry.file_type().await?;
+                    let entry_path =
+                        Utf8PathBuf::from_path_buf(dir_entry.path()).map_err(|pb| {
+                            anyhow::Error::msg(format!(
+                                "non-Unicode path: {}",
+                                pb.to_string_lossy()
+                            ))
+                        })?;
+                    if file_type.is_symlink() {
+                        debug!("{entry_path:?} is a symlink, skipping")
+                    } else if file_type.is_dir() {
+                        if recursive {
+                            paths.extend(get_all_files(&entry_path, true).await?.into_iter())
+                        } else {
+                            paths.push(entry_path)
+                        }
+                    } else {
+                        paths.push(entry_path);
+                    }
+                }
+                Ok(paths)
+            } else {
+                bail!("Path {directory_path:?} is not a directory")
+            }
+        } else {
+            Ok(Vec::new())
+        }
+    })
+}
+
 async fn create_target_directory(target_file_path: &Utf8Path) -> anyhow::Result<()> {
     let target_dir = match target_file_path.parent() {
         Some(parent_dir) => parent_dir,
@@ -930,18 +923,13 @@ mod fs_tests {
         // No delimiter: should recursively list everything
         let (storage, cancel) = create_storage()?;
         let child = upload_dummy_file(&storage, "grandparent/parent/child", None, &cancel).await?;
-        let child_sibling =
-            upload_dummy_file(&storage, "grandparent/parent/child_sibling", None, &cancel).await?;
         let uncle = upload_dummy_file(&storage, "grandparent/uncle", None, &cancel).await?;
 
         let listing = storage
             .list(None, ListingMode::NoDelimiter, None, &cancel)
             .await?;
         assert!(listing.prefixes.is_empty());
-        assert_eq!(
-            listing.keys.into_iter().collect::<HashSet<_>>(),
-            HashSet::from([uncle.clone(), child.clone(), child_sibling.clone()])
-        );
+        assert_eq!(listing.keys, [uncle.clone(), child.clone()].to_vec());
 
         // Delimiter: should only go one deep
         let listing = storage
@@ -954,25 +942,7 @@ mod fs_tests {
         );
         assert!(listing.keys.is_empty());
 
-        // Delimiter & prefix with a trailing slash
-        let listing = storage
-            .list(
-                Some(&RemotePath::from_string("timelines/some_timeline/grandparent/").unwrap()),
-                ListingMode::WithDelimiter,
-                None,
-                &cancel,
-            )
-            .await?;
-        assert_eq!(
-            listing.keys,
-            [RemotePath::from_string("uncle").unwrap()].to_vec()
-        );
-        assert_eq!(
-            listing.prefixes,
-            [RemotePath::from_string("parent").unwrap()].to_vec()
-        );
-
-        // Delimiter and prefix without a trailing slash
+        // Delimiter & prefix
         let listing = storage
             .list(
                 Some(&RemotePath::from_string("timelines/some_timeline/grandparent").unwrap()),
@@ -981,66 +951,12 @@ mod fs_tests {
                 &cancel,
             )
             .await?;
-        assert_eq!(listing.keys, [].to_vec());
         assert_eq!(
             listing.prefixes,
-            [RemotePath::from_string("grandparent").unwrap()].to_vec()
-        );
-
-        // Delimiter and prefix that's partway through a path component
-        let listing = storage
-            .list(
-                Some(&RemotePath::from_string("timelines/some_timeline/grandp").unwrap()),
-                ListingMode::WithDelimiter,
-                None,
-                &cancel,
-            )
-            .await?;
-        assert_eq!(listing.keys, [].to_vec());
-        assert_eq!(
-            listing.prefixes,
-            [RemotePath::from_string("grandparent").unwrap()].to_vec()
-        );
-
-        Ok(())
-    }
-
-    #[tokio::test]
-    async fn list_part_component() -> anyhow::Result<()> {
-        // No delimiter: should recursively list everything
-        let (storage, cancel) = create_storage()?;
-
-        // Imitates what happens in a tenant path when we have an unsharded path and a sharded path, and do a listing
-        // of the unsharded path: although there is a "directory" at the unsharded path, it should be handled as
-        // a freeform prefix.
-        let _child_a =
-            upload_dummy_file(&storage, "grandparent/tenant-01/child", None, &cancel).await?;
-        let _child_b =
-            upload_dummy_file(&storage, "grandparent/tenant/child", None, &cancel).await?;
-
-        // Delimiter and prefix that's partway through a path component
-        let listing = storage
-            .list(
-                Some(
-                    &RemotePath::from_string("timelines/some_timeline/grandparent/tenant").unwrap(),
-                ),
-                ListingMode::WithDelimiter,
-                None,
-                &cancel,
-            )
-            .await?;
-        assert_eq!(listing.keys, [].to_vec());
-
-        let mut found_prefixes = listing.prefixes.clone();
-        found_prefixes.sort();
-        assert_eq!(
-            found_prefixes,
-            [
-                RemotePath::from_string("tenant").unwrap(),
-                RemotePath::from_string("tenant-01").unwrap(),
-            ]
-            .to_vec()
+            [RemotePath::from_string("timelines/some_timeline/grandparent/parent").unwrap()]
+                .to_vec()
         );
+        assert_eq!(listing.keys, [uncle.clone()].to_vec());
 
         Ok(())
     }

libs/remote_storage/src/s3_bucket.rs

@@ -27,10 +27,10 @@ use aws_config::{
 };
 use aws_credential_types::provider::SharedCredentialsProvider;
 use aws_sdk_s3::{
-    config::{AsyncSleep, IdentityCache, Region, SharedAsyncSleep},
+    config::{AsyncSleep, Builder, IdentityCache, Region, SharedAsyncSleep},
     error::SdkError,
     operation::get_object::GetObjectError,
-    types::{Delete, DeleteMarkerEntry, ObjectIdentifier, ObjectVersion, StorageClass},
+    types::{Delete, DeleteMarkerEntry, ObjectIdentifier, ObjectVersion},
     Client,
 };
 use aws_smithy_async::rt::sleep::TokioSleep;
@@ -62,7 +62,6 @@ pub struct S3Bucket {
     bucket_name: String,
     prefix_in_bucket: Option<String>,
     max_keys_per_list_response: Option<i32>,
-    upload_storage_class: Option<StorageClass>,
     concurrency_limiter: ConcurrencyLimiter,
     // Per-request timeout. Accessible for tests.
     pub timeout: Duration,
@@ -75,13 +74,13 @@ struct GetObjectRequest {
 }
 impl S3Bucket {
     /// Creates the S3 storage, errors if incorrect AWS S3 configuration provided.
-    pub fn new(remote_storage_config: &S3Config, timeout: Duration) -> anyhow::Result<Self> {
+    pub fn new(aws_config: &S3Config, timeout: Duration) -> anyhow::Result<Self> {
         tracing::debug!(
             "Creating s3 remote storage for S3 bucket {}",
-            remote_storage_config.bucket_name
+            aws_config.bucket_name
         );
 
-        let region = Some(Region::new(remote_storage_config.bucket_region.clone()));
+        let region = Some(Region::new(aws_config.bucket_region.clone()));
 
         let provider_conf = ProviderConfig::without_region().with_region(region.clone());
 
@@ -113,38 +112,6 @@ impl S3Bucket {
         // AWS SDK requires us to specify how the RetryConfig should sleep when it wants to back off
         let sleep_impl: Arc<dyn AsyncSleep> = Arc::new(TokioSleep::new());
 
-        let sdk_config_loader: aws_config::ConfigLoader = aws_config::defaults(
-            #[allow(deprecated)] /* TODO: https://github.com/neondatabase/neon/issues/7665 */
-            BehaviorVersion::v2023_11_09(),
-        )
-        .region(region)
-        .identity_cache(IdentityCache::lazy().build())
-        .credentials_provider(SharedCredentialsProvider::new(credentials_provider))
-        .sleep_impl(SharedAsyncSleep::from(sleep_impl));
-
-        let sdk_config: aws_config::SdkConfig = std::thread::scope(|s| {
-            s.spawn(|| {
-                // TODO: make this function async.
-                tokio::runtime::Builder::new_current_thread()
-                    .enable_all()
-                    .build()
-                    .unwrap()
-                    .block_on(sdk_config_loader.load())
-            })
-            .join()
-            .unwrap()
-        });
-
-        let mut s3_config_builder = aws_sdk_s3::config::Builder::from(&sdk_config);
-
-        // Technically, the `remote_storage_config.endpoint` field only applies to S3 interactions.
-        // (In case we ever re-use the `sdk_config` for more than just the S3 client in the future)
-        if let Some(custom_endpoint) = remote_storage_config.endpoint.clone() {
-            s3_config_builder = s3_config_builder
-                .endpoint_url(custom_endpoint)
-                .force_path_style(true);
-        }
-
         // We do our own retries (see [`backoff::retry`]).  However, for the AWS SDK to enable rate limiting in response to throttling
         // responses (e.g. 429 on too many ListObjectsv2 requests), we must provide a retry config.  We set it to use at most one
         // attempt, and enable 'Adaptive' mode, which causes rate limiting to be enabled.
@@ -152,36 +119,41 @@ impl S3Bucket {
         retry_config
             .set_max_attempts(Some(1))
             .set_mode(Some(RetryMode::Adaptive));
-        s3_config_builder = s3_config_builder.retry_config(retry_config.build());
 
-        let s3_config = s3_config_builder.build();
-        let client = aws_sdk_s3::Client::from_conf(s3_config);
+        let mut config_builder = Builder::default()
+            .behavior_version(BehaviorVersion::v2023_11_09())
+            .region(region)
+            .identity_cache(IdentityCache::lazy().build())
+            .credentials_provider(SharedCredentialsProvider::new(credentials_provider))
+            .retry_config(retry_config.build())
+            .sleep_impl(SharedAsyncSleep::from(sleep_impl));
 
-        let prefix_in_bucket = remote_storage_config
-            .prefix_in_bucket
-            .as_deref()
-            .map(|prefix| {
-                let mut prefix = prefix;
-                while prefix.starts_with(REMOTE_STORAGE_PREFIX_SEPARATOR) {
-                    prefix = &prefix[1..]
-                }
+        if let Some(custom_endpoint) = aws_config.endpoint.clone() {
+            config_builder = config_builder
+                .endpoint_url(custom_endpoint)
+                .force_path_style(true);
+        }
 
-                let mut prefix = prefix.to_string();
-                while prefix.ends_with(REMOTE_STORAGE_PREFIX_SEPARATOR) {
-                    prefix.pop();
-                }
-                prefix
-            });
+        let client = Client::from_conf(config_builder.build());
 
+        let prefix_in_bucket = aws_config.prefix_in_bucket.as_deref().map(|prefix| {
+            let mut prefix = prefix;
+            while prefix.starts_with(REMOTE_STORAGE_PREFIX_SEPARATOR) {
+                prefix = &prefix[1..]
+            }
+
+            let mut prefix = prefix.to_string();
+            while prefix.ends_with(REMOTE_STORAGE_PREFIX_SEPARATOR) {
+                prefix.pop();
+            }
+            prefix
+        });
         Ok(Self {
             client,
-            bucket_name: remote_storage_config.bucket_name.clone(),
-            max_keys_per_list_response: remote_storage_config.max_keys_per_list_response,
+            bucket_name: aws_config.bucket_name.clone(),
+            max_keys_per_list_response: aws_config.max_keys_per_list_response,
             prefix_in_bucket,
-            concurrency_limiter: ConcurrencyLimiter::new(
-                remote_storage_config.concurrency_limit.get(),
-            ),
-            upload_storage_class: remote_storage_config.upload_storage_class.clone(),
+            concurrency_limiter: ConcurrencyLimiter::new(aws_config.concurrency_limit.get()),
             timeout,
         })
     }
@@ -206,7 +178,10 @@ impl S3Bucket {
 
     pub fn relative_path_to_s3_object(&self, path: &RemotePath) -> String {
         assert_eq!(std::path::MAIN_SEPARATOR, REMOTE_STORAGE_PREFIX_SEPARATOR);
-        let path_string = path.get_path().as_str();
+        let path_string = path
+            .get_path()
+            .as_str()
+            .trim_end_matches(REMOTE_STORAGE_PREFIX_SEPARATOR);
         match &self.prefix_in_bucket {
             Some(prefix) => prefix.clone() + "/" + path_string,
             None => path_string.to_string(),
@@ -496,11 +471,16 @@ impl RemoteStorage for S3Bucket {
         // get the passed prefix or if it is not set use prefix_in_bucket value
         let list_prefix = prefix
             .map(|p| self.relative_path_to_s3_object(p))
-            .or_else(|| {
-                self.prefix_in_bucket.clone().map(|mut s| {
-                    s.push(REMOTE_STORAGE_PREFIX_SEPARATOR);
-                    s
-                })
+            .or_else(|| self.prefix_in_bucket.clone())
+            .map(|mut p| {
+                // required to end with a separator
+                // otherwise request will return only the entry of a prefix
+                if matches!(mode, ListingMode::WithDelimiter)
+                    && !p.ends_with(REMOTE_STORAGE_PREFIX_SEPARATOR)
+                {
+                    p.push(REMOTE_STORAGE_PREFIX_SEPARATOR);
+                }
+                p
             });
 
         let _permit = self.permit(kind, cancel).await?;
@@ -569,15 +549,11 @@ impl RemoteStorage for S3Bucket {
                 }
             }
 
-            // S3 gives us prefixes like "foo/", we return them like "foo"
-            result.prefixes.extend(prefixes.iter().filter_map(|o| {
-                Some(
-                    self.s3_object_to_relative_path(
-                        o.prefix()?
-                            .trim_end_matches(REMOTE_STORAGE_PREFIX_SEPARATOR),
-                    ),
-                )
-            }));
+            result.prefixes.extend(
+                prefixes
+                    .iter()
+                    .filter_map(|o| Some(self.s3_object_to_relative_path(o.prefix()?))),
+            );
 
             continuation_token = match response.next_continuation_token {
                 Some(new_token) => Some(new_token),
@@ -610,7 +586,6 @@ impl RemoteStorage for S3Bucket {
             .bucket(self.bucket_name.clone())
             .key(self.relative_path_to_s3_object(to))
             .set_metadata(metadata.map(|m| m.0))
-            .set_storage_class(self.upload_storage_class.clone())
             .content_length(from_size_bytes.try_into()?)
             .body(bytes_stream)
             .send();
@@ -662,7 +637,6 @@ impl RemoteStorage for S3Bucket {
             .copy_object()
             .bucket(self.bucket_name.clone())
             .key(self.relative_path_to_s3_object(to))
-            .set_storage_class(self.upload_storage_class.clone())
             .copy_source(copy_source)
             .send();
 
@@ -920,7 +894,6 @@ impl RemoteStorage for S3Bucket {
                                     .copy_object()
                                     .bucket(self.bucket_name.clone())
                                     .key(key)
-                                    .set_storage_class(self.upload_storage_class.clone())
                                     .copy_source(&source_id)
                                     .send();
 
@@ -1077,22 +1050,22 @@ mod tests {
             Some("/test/prefix/"),
         ];
         let expected_outputs = [
-            vec!["", "some/path", "some/path/"],
-            vec!["/", "/some/path", "/some/path/"],
+            vec!["", "some/path", "some/path"],
+            vec!["/", "/some/path", "/some/path"],
             vec![
                 "test/prefix/",
                 "test/prefix/some/path",
-                "test/prefix/some/path/",
+                "test/prefix/some/path",
             ],
             vec![
                 "test/prefix/",
                 "test/prefix/some/path",
-                "test/prefix/some/path/",
+                "test/prefix/some/path",
             ],
             vec![
                 "test/prefix/",
                 "test/prefix/some/path",
-                "test/prefix/some/path/",
+                "test/prefix/some/path",
             ],
         ];
 
@@ -1104,7 +1077,6 @@ mod tests {
                 endpoint: None,
                 concurrency_limit: NonZeroUsize::new(100).unwrap(),
                 max_keys_per_list_response: Some(5),
-                upload_storage_class: None,
             };
             let storage =
                 S3Bucket::new(&config, std::time::Duration::ZERO).expect("remote storage init");

libs/remote_storage/src/simulate_failures.rs

@@ -107,6 +107,27 @@ impl UnreliableWrapper {
 type VoidStorage = crate::LocalFs;
 
 impl RemoteStorage for UnreliableWrapper {
+    async fn list_prefixes(
+        &self,
+        prefix: Option<&RemotePath>,
+        cancel: &CancellationToken,
+    ) -> Result<Vec<RemotePath>, DownloadError> {
+        self.attempt(RemoteOp::ListPrefixes(prefix.cloned()))
+            .map_err(DownloadError::Other)?;
+        self.inner.list_prefixes(prefix, cancel).await
+    }
+
+    async fn list_files(
+        &self,
+        folder: Option<&RemotePath>,
+        max_keys: Option<NonZeroU32>,
+        cancel: &CancellationToken,
+    ) -> Result<Vec<RemotePath>, DownloadError> {
+        self.attempt(RemoteOp::ListPrefixes(folder.cloned()))
+            .map_err(DownloadError::Other)?;
+        self.inner.list_files(folder, max_keys, cancel).await
+    }
+
     async fn list(
         &self,
         prefix: Option<&RemotePath>,

libs/remote_storage/tests/common/tests.rs

@@ -1,6 +1,5 @@
 use anyhow::Context;
 use camino::Utf8Path;
-use remote_storage::ListingMode;
 use remote_storage::RemotePath;
 use std::sync::Arc;
 use std::{collections::HashSet, num::NonZeroU32};
@@ -55,9 +54,9 @@ async fn pagination_should_work(ctx: &mut MaybeEnabledStorageWithTestBlobs) -> a
     let base_prefix = RemotePath::new(Utf8Path::new(ctx.enabled.base_prefix))
         .context("common_prefix construction")?;
     let root_remote_prefixes = test_client
-        .list(None, ListingMode::WithDelimiter, None, &cancel)
-        .await?
-        .prefixes
+        .list_prefixes(None, &cancel)
+        .await
+        .context("client list root prefixes failure")?
         .into_iter()
         .collect::<HashSet<_>>();
     assert_eq!(
@@ -66,14 +65,9 @@ async fn pagination_should_work(ctx: &mut MaybeEnabledStorageWithTestBlobs) -> a
     );
 
     let nested_remote_prefixes = test_client
-        .list(
-            Some(&base_prefix.add_trailing_slash()),
-            ListingMode::WithDelimiter,
-            None,
-            &cancel,
-        )
-        .await?
-        .prefixes
+        .list_prefixes(Some(&base_prefix), &cancel)
+        .await
+        .context("client list nested prefixes failure")?
         .into_iter()
         .collect::<HashSet<_>>();
     let remote_only_prefixes = nested_remote_prefixes
@@ -96,13 +90,11 @@ async fn pagination_should_work(ctx: &mut MaybeEnabledStorageWithTestBlobs) -> a
 ///
 /// First, create a set of S3 objects with keys `random_prefix/folder{j}/blob_{i}.txt` in [`upload_remote_data`]
 /// Then performs the following queries:
-///    1. `list(None)`. This should return all files `random_prefix/folder{j}/blob_{i}.txt`
-///    2. `list("folder1")`.  This  should return all files `random_prefix/folder1/blob_{i}.txt`
+///    1. `list_files(None)`. This should return all files `random_prefix/folder{j}/blob_{i}.txt`
+///    2. `list_files("folder1")`.  This  should return all files `random_prefix/folder1/blob_{i}.txt`
 #[test_context(MaybeEnabledStorageWithSimpleTestBlobs)]
 #[tokio::test]
-async fn list_no_delimiter_works(
-    ctx: &mut MaybeEnabledStorageWithSimpleTestBlobs,
-) -> anyhow::Result<()> {
+async fn list_files_works(ctx: &mut MaybeEnabledStorageWithSimpleTestBlobs) -> anyhow::Result<()> {
     let ctx = match ctx {
         MaybeEnabledStorageWithSimpleTestBlobs::Enabled(ctx) => ctx,
         MaybeEnabledStorageWithSimpleTestBlobs::Disabled => return Ok(()),
@@ -115,36 +107,29 @@ async fn list_no_delimiter_works(
     let base_prefix =
         RemotePath::new(Utf8Path::new("folder1")).context("common_prefix construction")?;
     let root_files = test_client
-        .list(None, ListingMode::NoDelimiter, None, &cancel)
+        .list_files(None, None, &cancel)
         .await
         .context("client list root files failure")?
-        .keys
         .into_iter()
         .collect::<HashSet<_>>();
     assert_eq!(
         root_files,
         ctx.remote_blobs.clone(),
-        "remote storage list on root mismatches with the uploads."
+        "remote storage list_files on root mismatches with the uploads."
     );
 
     // Test that max_keys limit works. In total there are about 21 files (see
     // upload_simple_remote_data call in test_real_s3.rs).
     let limited_root_files = test_client
-        .list(
-            None,
-            ListingMode::NoDelimiter,
-            Some(NonZeroU32::new(2).unwrap()),
-            &cancel,
-        )
+        .list_files(None, Some(NonZeroU32::new(2).unwrap()), &cancel)
         .await
         .context("client list root files failure")?;
-    assert_eq!(limited_root_files.keys.len(), 2);
+    assert_eq!(limited_root_files.len(), 2);
 
     let nested_remote_files = test_client
-        .list(Some(&base_prefix), ListingMode::NoDelimiter, None, &cancel)
+        .list_files(Some(&base_prefix), None, &cancel)
         .await
         .context("client list nested files failure")?
-        .keys
         .into_iter()
         .collect::<HashSet<_>>();
     let trim_remote_blobs: HashSet<_> = ctx
@@ -156,7 +141,7 @@ async fn list_no_delimiter_works(
         .collect();
     assert_eq!(
         nested_remote_files, trim_remote_blobs,
-        "remote storage list on subdirrectory mismatches with the uploads."
+        "remote storage list_files on subdirrectory mismatches with the uploads."
     );
     Ok(())
 }
@@ -214,11 +199,7 @@ async fn delete_objects_works(ctx: &mut MaybeEnabledStorage) -> anyhow::Result<(
 
     ctx.client.delete_objects(&[path1, path2], &cancel).await?;
 
-    let prefixes = ctx
-        .client
-        .list(None, ListingMode::WithDelimiter, None, &cancel)
-        .await?
-        .prefixes;
+    let prefixes = ctx.client.list_prefixes(None, &cancel).await?;
 
     assert_eq!(prefixes.len(), 1);
 

libs/remote_storage/tests/test_real_azure.rs

@@ -132,6 +132,10 @@ impl AsyncTestContext for MaybeEnabledStorageWithTestBlobs {
     }
 }
 
+// NOTE: the setups for the list_prefixes test and the list_files test are very similar
+// However, they are not idential. The list_prefixes function is concerned with listing prefixes,
+// whereas the list_files function is concerned with listing files.
+// See `RemoteStorage::list_files` documentation for more details
 enum MaybeEnabledStorageWithSimpleTestBlobs {
     Enabled(AzureWithSimpleTestBlobs),
     Disabled,

libs/remote_storage/tests/test_real_s3.rs

@@ -12,8 +12,8 @@ use anyhow::Context;
 use camino::Utf8Path;
 use futures_util::StreamExt;
 use remote_storage::{
-    DownloadError, GenericRemoteStorage, ListingMode, RemotePath, RemoteStorageConfig,
-    RemoteStorageKind, S3Config,
+    DownloadError, GenericRemoteStorage, RemotePath, RemoteStorageConfig, RemoteStorageKind,
+    S3Config,
 };
 use test_context::test_context;
 use test_context::AsyncTestContext;
@@ -75,14 +75,11 @@ async fn s3_time_travel_recovery_works(ctx: &mut MaybeEnabledStorage) -> anyhow:
         client: &Arc<GenericRemoteStorage>,
         cancel: &CancellationToken,
     ) -> anyhow::Result<HashSet<RemotePath>> {
-        Ok(
-            retry(|| client.list(None, ListingMode::NoDelimiter, None, cancel))
-                .await
-                .context("list root files failure")?
-                .keys
-                .into_iter()
-                .collect::<HashSet<_>>(),
-        )
+        Ok(retry(|| client.list_files(None, None, cancel))
+            .await
+            .context("list root files failure")?
+            .into_iter()
+            .collect::<HashSet<_>>())
     }
 
     let cancel = CancellationToken::new();
@@ -297,6 +294,10 @@ impl AsyncTestContext for MaybeEnabledStorageWithTestBlobs {
     }
 }
 
+// NOTE: the setups for the list_prefixes test and the list_files test are very similar
+// However, they are not idential. The list_prefixes function is concerned with listing prefixes,
+// whereas the list_files function is concerned with listing files.
+// See `RemoteStorage::list_files` documentation for more details
 enum MaybeEnabledStorageWithSimpleTestBlobs {
     Enabled(S3WithSimpleTestBlobs),
     Disabled,
@@ -380,7 +381,6 @@ fn create_s3_client(
             endpoint: None,
             concurrency_limit: NonZeroUsize::new(100).unwrap(),
             max_keys_per_list_response,
-            upload_storage_class: None,
         }),
         timeout: RemoteStorageConfig::DEFAULT_TIMEOUT,
     };

libs/safekeeper_api/src/models.rs

@@ -50,9 +50,6 @@ pub struct SkTimelineInfo {
     pub safekeeper_connstr: Option<String>,
     #[serde(default)]
     pub http_connstr: Option<String>,
-    // Minimum of all active RO replicas flush LSN
-    #[serde(default = "lsn_invalid")]
-    pub standby_horizon: Lsn,
 }
 
 #[derive(Debug, Clone, Deserialize, Serialize)]

libs/utils/src/failpoint_support.rs

@@ -9,33 +9,6 @@ use serde::{Deserialize, Serialize};
 use tokio_util::sync::CancellationToken;
 use tracing::*;
 
-/// Declare a failpoint that can use the `pause` failpoint action.
-/// We don't want to block the executor thread, hence, spawn_blocking + await.
-#[macro_export]
-macro_rules! pausable_failpoint {
-    ($name:literal) => {
-        if cfg!(feature = "testing") {
-            tokio::task::spawn_blocking({
-                let current = tracing::Span::current();
-                move || {
-                    let _entered = current.entered();
-                    tracing::info!("at failpoint {}", $name);
-                    fail::fail_point!($name);
-                }
-            })
-            .await
-            .expect("spawn_blocking");
-        }
-    };
-    ($name:literal, $cond:expr) => {
-        if cfg!(feature = "testing") {
-            if $cond {
-                pausable_failpoint!($name)
-            }
-        }
-    };
-}
-
 /// use with fail::cfg("$name", "return(2000)")
 ///
 /// The effect is similar to a "sleep(2000)" action, i.e. we sleep for the

libs/utils/src/generation.rs

@@ -34,8 +34,6 @@ pub enum Generation {
 /// scenarios where pageservers might otherwise issue conflicting writes to
 /// remote storage
 impl Generation {
-    pub const MAX: Self = Self::Valid(u32::MAX);
-
     /// Create a new Generation that represents a legacy key format with
     /// no generation suffix
     pub fn none() -> Self {

libs/utils/src/lib.rs

@@ -92,8 +92,6 @@ pub mod zstd;
 
 pub mod env;
 
-pub mod poison;
-
 /// This is a shortcut to embed git sha into binaries and avoid copying the same build script to all packages
 ///
 /// we have several cases:

libs/utils/src/poison.rs

@@ -1,121 +0,0 @@
-//!  Protect a piece of state from reuse after it is left in an inconsistent state.
-//!
-//!  # Example
-//!
-//!  ```
-//!  # tokio::runtime::Builder::new_current_thread().enable_all().build().unwrap().block_on(async {
-//!  use utils::poison::Poison;
-//!  use std::time::Duration;
-//!
-//!  struct State {
-//!    clean: bool,
-//!  }
-//!  let state = tokio::sync::Mutex::new(Poison::new("mystate", State { clean: true }));
-//!
-//!  let mut mutex_guard = state.lock().await;
-//!  let mut poison_guard = mutex_guard.check_and_arm()?;
-//!  let state = poison_guard.data_mut();
-//!  state.clean = false;
-//!  // If we get cancelled at this await point, subsequent check_and_arm() calls will fail.
-//!  tokio::time::sleep(Duration::from_secs(10)).await;
-//!  state.clean = true;
-//!  poison_guard.disarm();
-//!  # Ok::<(), utils::poison::Error>(())
-//!  # });
-//!  ```
-
-use tracing::warn;
-
-pub struct Poison<T> {
-    what: &'static str,
-    state: State,
-    data: T,
-}
-
-#[derive(Clone, Copy)]
-enum State {
-    Clean,
-    Armed,
-    Poisoned { at: chrono::DateTime<chrono::Utc> },
-}
-
-impl<T> Poison<T> {
-    /// We log `what` `warning!` level if the [`Guard`] gets dropped without being [`Guard::disarm`]ed.
-    pub fn new(what: &'static str, data: T) -> Self {
-        Self {
-            what,
-            state: State::Clean,
-            data,
-        }
-    }
-
-    /// Check for poisoning and return a [`Guard`] that provides access to the wrapped state.
-    pub fn check_and_arm(&mut self) -> Result<Guard<T>, Error> {
-        match self.state {
-            State::Clean => {
-                self.state = State::Armed;
-                Ok(Guard(self))
-            }
-            State::Armed => unreachable!("transient state"),
-            State::Poisoned { at } => Err(Error::Poisoned {
-                what: self.what,
-                at,
-            }),
-        }
-    }
-}
-
-/// Use [`Self::data`] and [`Self::data_mut`] to access the wrapped state.
-/// Once modifications are done, use [`Self::disarm`].
-/// If [`Guard`] gets dropped instead of calling [`Self::disarm`], the state is poisoned
-/// and subsequent calls to [`Poison::check_and_arm`] will fail with an error.
-pub struct Guard<'a, T>(&'a mut Poison<T>);
-
-impl<'a, T> Guard<'a, T> {
-    pub fn data(&self) -> &T {
-        &self.0.data
-    }
-    pub fn data_mut(&mut self) -> &mut T {
-        &mut self.0.data
-    }
-
-    pub fn disarm(self) {
-        match self.0.state {
-            State::Clean => unreachable!("we set it to Armed in check_and_arm()"),
-            State::Armed => {
-                self.0.state = State::Clean;
-            }
-            State::Poisoned { at } => {
-                unreachable!("we fail check_and_arm() if it's in that state: {at}")
-            }
-        }
-    }
-}
-
-impl<'a, T> Drop for Guard<'a, T> {
-    fn drop(&mut self) {
-        match self.0.state {
-            State::Clean => {
-                // set by disarm()
-            }
-            State::Armed => {
-                // still armed => poison it
-                let at = chrono::Utc::now();
-                self.0.state = State::Poisoned { at };
-                warn!(at=?at, "poisoning {}", self.0.what);
-            }
-            State::Poisoned { at } => {
-                unreachable!("we fail check_and_arm() if it's in that state: {at}")
-            }
-        }
-    }
-}
-
-#[derive(thiserror::Error, Debug)]
-pub enum Error {
-    #[error("poisoned at {at}: {what}")]
-    Poisoned {
-        what: &'static str,
-        at: chrono::DateTime<chrono::Utc>,
-    },
-}

libs/utils/src/seqwait.rs

@@ -2,10 +2,11 @@
 
 use std::cmp::{Eq, Ordering};
 use std::collections::BinaryHeap;
+use std::fmt::Debug;
 use std::mem;
 use std::sync::Mutex;
 use std::time::Duration;
-use tokio::sync::watch::{self, channel};
+use tokio::sync::watch::{channel, Receiver, Sender};
 use tokio::time::timeout;
 
 /// An error happened while waiting for a number
@@ -34,73 +35,23 @@ pub trait MonotonicCounter<V> {
     fn cnt_value(&self) -> V;
 }
 
-/// Heap of waiters, lowest numbers pop first.
-struct Waiters<V>
+/// Internal components of a `SeqWait`
+struct SeqWaitInt<S, V>
 where
+    S: MonotonicCounter<V>,
     V: Ord,
 {
-    heap: BinaryHeap<Waiter<V>>,
-    /// Number of the first waiter in the heap, or None if there are no waiters.
-    status_channel: watch::Sender<Option<V>>,
-}
-
-impl<V> Waiters<V>
-where
-    V: Ord + Copy,
-{
-    fn new() -> Self {
-        Waiters {
-            heap: BinaryHeap::new(),
-            status_channel: channel(None).0,
-        }
-    }
-
-    /// `status_channel` contains the number of the first waiter in the heap.
-    /// This function should be called whenever waiters heap changes.
-    fn update_status(&self) {
-        let first_waiter = self.heap.peek().map(|w| w.wake_num);
-        let _ = self.status_channel.send_replace(first_waiter);
-    }
-
-    /// Add new waiter to the heap, return a channel that will be notified when the number arrives.
-    fn add(&mut self, num: V) -> watch::Receiver<()> {
-        let (tx, rx) = channel(());
-        self.heap.push(Waiter {
-            wake_num: num,
-            wake_channel: tx,
-        });
-        self.update_status();
-        rx
-    }
-
-    /// Pop all waiters <= num from the heap. Collect channels in a vector,
-    /// so that caller can wake them up.
-    fn pop_leq(&mut self, num: V) -> Vec<watch::Sender<()>> {
-        let mut wake_these = Vec::new();
-        while let Some(n) = self.heap.peek() {
-            if n.wake_num > num {
-                break;
-            }
-            wake_these.push(self.heap.pop().unwrap().wake_channel);
-        }
-        self.update_status();
-        wake_these
-    }
-
-    /// Used on shutdown to efficiently drop all waiters.
-    fn take_all(&mut self) -> BinaryHeap<Waiter<V>> {
-        let heap = mem::take(&mut self.heap);
-        self.update_status();
-        heap
-    }
+    waiters: BinaryHeap<Waiter<V>>,
+    current: S,
+    shutdown: bool,
 }
 
 struct Waiter<T>
 where
     T: Ord,
 {
-    wake_num: T,                     // wake me when this number arrives ...
-    wake_channel: watch::Sender<()>, // ... by sending a message to this channel
+    wake_num: T,              // wake me when this number arrives ...
+    wake_channel: Sender<()>, // ... by sending a message to this channel
 }
 
 // BinaryHeap is a max-heap, and we want a min-heap. Reverse the ordering here
@@ -125,17 +76,6 @@ impl<T: Ord> PartialEq for Waiter<T> {
 
 impl<T: Ord> Eq for Waiter<T> {}
 
-/// Internal components of a `SeqWait`
-struct SeqWaitInt<S, V>
-where
-    S: MonotonicCounter<V>,
-    V: Ord,
-{
-    waiters: Waiters<V>,
-    current: S,
-    shutdown: bool,
-}
-
 /// A tool for waiting on a sequence number
 ///
 /// This provides a way to wait the arrival of a number.
@@ -168,7 +108,7 @@ where
     /// Create a new `SeqWait`, initialized to a particular number
     pub fn new(starting_num: S) -> Self {
         let internal = SeqWaitInt {
-            waiters: Waiters::new(),
+            waiters: BinaryHeap::new(),
             current: starting_num,
             shutdown: false,
         };
@@ -188,8 +128,9 @@ where
             // Block any future waiters from starting
             internal.shutdown = true;
 
-            // Take all waiters to drop them later.
-            internal.waiters.take_all()
+            // This will steal the entire waiters map.
+            // When we drop it all waiters will be woken.
+            mem::take(&mut internal.waiters)
 
             // Drop the lock as we exit this scope.
         };
@@ -255,7 +196,7 @@ where
 
     /// Register and return a channel that will be notified when a number arrives,
     /// or None, if it has already arrived.
-    fn queue_for_wait(&self, num: V) -> Result<Option<watch::Receiver<()>>, SeqWaitError> {
+    fn queue_for_wait(&self, num: V) -> Result<Option<Receiver<()>>, SeqWaitError> {
         let mut internal = self.internal.lock().unwrap();
         if internal.current.cnt_value() >= num {
             return Ok(None);
@@ -264,8 +205,12 @@ where
             return Err(SeqWaitError::Shutdown);
         }
 
-        // Add waiter channel to the queue.
-        let rx = internal.waiters.add(num);
+        // Create a new channel.
+        let (tx, rx) = channel(());
+        internal.waiters.push(Waiter {
+            wake_num: num,
+            wake_channel: tx,
+        });
         // Drop the lock as we exit this scope.
         Ok(Some(rx))
     }
@@ -286,8 +231,16 @@ where
             }
             internal.current.cnt_advance(num);
 
-            // Pop all waiters <= num from the heap.
-            internal.waiters.pop_leq(num)
+            // Pop all waiters <= num from the heap. Collect them in a vector, and
+            // wake them up after releasing the lock.
+            let mut wake_these = Vec::new();
+            while let Some(n) = internal.waiters.peek() {
+                if n.wake_num > num {
+                    break;
+                }
+                wake_these.push(internal.waiters.pop().unwrap().wake_channel);
+            }
+            wake_these
         };
 
         for tx in wake_these {
@@ -302,23 +255,6 @@ where
     pub fn load(&self) -> S {
         self.internal.lock().unwrap().current
     }
-
-    /// Get a Receiver for the current status.
-    ///
-    /// The current status is the number of the first waiter in the queue,
-    /// or None if there are no waiters.
-    ///
-    /// This receiver will be notified whenever the status changes.
-    /// It is useful for receiving notifications when the first waiter
-    /// starts waiting for a number, or when there are no more waiters left.
-    pub fn status_receiver(&self) -> watch::Receiver<Option<V>> {
-        self.internal
-            .lock()
-            .unwrap()
-            .waiters
-            .status_channel
-            .subscribe()
-    }
 }
 
 #[cfg(test)]

libs/utils/src/sync/gate.rs

@@ -135,8 +135,7 @@ impl Gate {
         let started_at = std::time::Instant::now();
         let mut do_close = std::pin::pin!(self.do_close());
 
-        // with 1s we rarely saw anything, let's try if we get more gate closing reasons with 100ms
-        let nag_after = Duration::from_millis(100);
+        let nag_after = Duration::from_secs(1);
 
         let Err(_timeout) = tokio::time::timeout(nag_after, &mut do_close).await else {
             return;

libs/utils/src/sync/heavier_once_cell.rs

@@ -192,14 +192,6 @@ impl<T> OnceCell<T> {
         }
     }
 
-    /// Like [`Guard::take_and_deinit`], but will return `None` if this OnceCell was never
-    /// initialized.
-    pub fn take_and_deinit(&mut self) -> Option<(T, InitPermit)> {
-        let inner = self.inner.get_mut().unwrap();
-
-        inner.take_and_deinit()
-    }
-
     /// Return the number of [`Self::get_or_init`] calls waiting for initialization to complete.
     pub fn initializer_count(&self) -> usize {
         self.initializers.load(Ordering::Relaxed)
@@ -254,23 +246,15 @@ impl<'a, T> Guard<'a, T> {
     /// The permit will be on a semaphore part of the new internal value, and any following
     /// [`OnceCell::get_or_init`] will wait on it to complete.
     pub fn take_and_deinit(mut self) -> (T, InitPermit) {
-        self.0
-            .take_and_deinit()
-            .expect("guard is not created unless value has been initialized")
-    }
-}
-
-impl<T> Inner<T> {
-    pub fn take_and_deinit(&mut self) -> Option<(T, InitPermit)> {
-        let value = self.value.take()?;
-
         let mut swapped = Inner::default();
         let sem = swapped.init_semaphore.clone();
         // acquire and forget right away, moving the control over to InitPermit
         sem.try_acquire().expect("we just created this").forget();
-        let permit = InitPermit(sem);
-        std::mem::swap(self, &mut swapped);
-        Some((value, permit))
+        std::mem::swap(&mut *self.0, &mut swapped);
+        swapped
+            .value
+            .map(|v| (v, InitPermit(sem)))
+            .expect("guard is not created unless value has been initialized")
     }
 }
 
@@ -279,13 +263,6 @@ impl<T> Inner<T> {
 /// On drop, this type will return the permit.
 pub struct InitPermit(Arc<tokio::sync::Semaphore>);
 
-impl std::fmt::Debug for InitPermit {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        let ptr = Arc::as_ptr(&self.0) as *const ();
-        f.debug_tuple("InitPermit").field(&ptr).finish()
-    }
-}
-
 impl Drop for InitPermit {
     fn drop(&mut self) {
         assert_eq!(
@@ -582,22 +559,4 @@ mod tests {
 
         assert_eq!(*target.get().unwrap(), 11);
     }
-
-    #[tokio::test]
-    async fn take_and_deinit_on_mut() {
-        use std::convert::Infallible;
-
-        let mut target = OnceCell::<u32>::default();
-        assert!(target.take_and_deinit().is_none());
-
-        target
-            .get_or_init(|permit| async move { Ok::<_, Infallible>((42, permit)) })
-            .await
-            .unwrap();
-
-        let again = target.take_and_deinit();
-        assert!(matches!(again, Some((42, _))), "{again:?}");
-
-        assert!(target.take_and_deinit().is_none());
-    }
 }

libs/walproposer/src/api_bindings.rs

@@ -50,14 +50,6 @@ extern "C" fn get_flush_rec_ptr(wp: *mut WalProposer) -> XLogRecPtr {
     }
 }
 
-extern "C" fn update_donor(wp: *mut WalProposer, donor: *mut Safekeeper, donor_lsn: XLogRecPtr) {
-    unsafe {
-        let callback_data = (*(*wp).config).callback_data;
-        let api = callback_data as *mut Box<dyn ApiImpl>;
-        (*api).update_donor(&mut (*donor), donor_lsn)
-    }
-}
-
 extern "C" fn get_current_timestamp(wp: *mut WalProposer) -> TimestampTz {
     unsafe {
         let callback_data = (*(*wp).config).callback_data;
@@ -399,7 +391,6 @@ pub(crate) fn create_api() -> walproposer_api {
         get_shmem_state: Some(get_shmem_state),
         start_streaming: Some(start_streaming),
         get_flush_rec_ptr: Some(get_flush_rec_ptr),
-        update_donor: Some(update_donor),
         get_current_timestamp: Some(get_current_timestamp),
         conn_error_message: Some(conn_error_message),
         conn_status: Some(conn_status),
@@ -430,32 +421,6 @@ pub(crate) fn create_api() -> walproposer_api {
     }
 }
 
-pub fn empty_shmem() -> crate::bindings::WalproposerShmemState {
-    let empty_feedback = crate::bindings::PageserverFeedback {
-        present: false,
-        currentClusterSize: 0,
-        last_received_lsn: 0,
-        disk_consistent_lsn: 0,
-        remote_consistent_lsn: 0,
-        replytime: 0,
-        shard_number: 0,
-    };
-
-    crate::bindings::WalproposerShmemState {
-        propEpochStartLsn: crate::bindings::pg_atomic_uint64 { value: 0 },
-        donor_name: [0; 64],
-        donor_conninfo: [0; 1024],
-        donor_lsn: 0,
-        mutex: 0,
-        mineLastElectedTerm: crate::bindings::pg_atomic_uint64 { value: 0 },
-        backpressureThrottlingTime: crate::bindings::pg_atomic_uint64 { value: 0 },
-        currentClusterSize: crate::bindings::pg_atomic_uint64 { value: 0 },
-        shard_ps_feedback: [empty_feedback; 128],
-        num_shards: 0,
-        min_ps_feedback: empty_feedback,
-    }
-}
-
 impl std::fmt::Display for Level {
     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
         write!(f, "{:?}", self)

libs/walproposer/src/walproposer.rs

@@ -1,5 +1,8 @@
 use std::ffi::CString;
 
+use postgres_ffi::WAL_SEGMENT_SIZE;
+use utils::{id::TenantTimelineId, lsn::Lsn};
+
 use crate::{
     api_bindings::{create_api, take_vec_u8, Level},
     bindings::{
@@ -7,8 +10,6 @@ use crate::{
         WalProposerCreate, WalProposerFree, WalProposerPoll, WalProposerStart,
     },
 };
-use postgres_ffi::WAL_SEGMENT_SIZE;
-use utils::{id::TenantTimelineId, lsn::Lsn};
 
 /// Rust high-level wrapper for C walproposer API. Many methods are not required
 /// for simple cases, hence todo!() in default implementations.
@@ -27,10 +28,6 @@ pub trait ApiImpl {
         todo!()
     }
 
-    fn update_donor(&self, _donor: &mut Safekeeper, _donor_lsn: u64) {
-        todo!()
-    }
-
     fn get_current_timestamp(&self) -> i64 {
         todo!()
     }
@@ -277,7 +274,6 @@ mod tests {
         sync::{atomic::AtomicUsize, mpsc::sync_channel},
     };
 
-    use std::cell::UnsafeCell;
     use utils::id::TenantTimelineId;
 
     use crate::{api_bindings::Level, bindings::NeonWALReadResult, walproposer::Wrapper};
@@ -301,8 +297,6 @@ mod tests {
         replies_ptr: AtomicUsize,
         // channel to send LSN to the main thread
         sync_channel: std::sync::mpsc::SyncSender<u64>,
-        // Shmem state, used for storing donor info
-        shmem: UnsafeCell<crate::bindings::WalproposerShmemState>,
     }
 
     impl MockImpl {
@@ -333,22 +327,11 @@ mod tests {
     }
 
     impl ApiImpl for MockImpl {
-        fn get_shmem_state(&self) -> *mut crate::bindings::WalproposerShmemState {
-            self.shmem.get()
-        }
-
         fn get_current_timestamp(&self) -> i64 {
             println!("get_current_timestamp");
             0
         }
 
-        fn update_donor(&self, donor: &mut crate::bindings::Safekeeper, donor_lsn: u64) {
-            let mut shmem = unsafe { *self.get_shmem_state() };
-            shmem.propEpochStartLsn.value = donor_lsn;
-            shmem.donor_conninfo = donor.conninfo;
-            shmem.donor_lsn = donor_lsn;
-        }
-
         fn conn_status(
             &self,
             _: &mut crate::bindings::Safekeeper,
@@ -496,9 +479,9 @@ mod tests {
                 // TODO: When updating Postgres versions, this test will cause
                 // problems. Postgres version in message needs updating.
                 //
-                // Greeting(ProposerGreeting { protocol_version: 2, pg_version: 160003, proposer_id: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], system_id: 0, timeline_id: 9e4c8f36063c6c6e93bc20d65a820f3d, tenant_id: 9e4c8f36063c6c6e93bc20d65a820f3d, tli: 1, wal_seg_size: 16777216 })
+                // Greeting(ProposerGreeting { protocol_version: 2, pg_version: 160002, proposer_id: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], system_id: 0, timeline_id: 9e4c8f36063c6c6e93bc20d65a820f3d, tenant_id: 9e4c8f36063c6c6e93bc20d65a820f3d, tli: 1, wal_seg_size: 16777216 })
                 vec![
-                    103, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 3, 113, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+                    103, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 2, 113, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 158, 76, 143, 54, 6, 60, 108, 110,
                     147, 188, 32, 214, 90, 130, 15, 61, 158, 76, 143, 54, 6, 60, 108, 110, 147,
                     188, 32, 214, 90, 130, 15, 61, 1, 0, 0, 0, 0, 0, 0, 1,
@@ -524,7 +507,6 @@ mod tests {
             ],
             replies_ptr: AtomicUsize::new(0),
             sync_channel: sender,
-            shmem: UnsafeCell::new(crate::api_bindings::empty_shmem()),
         });
         let config = crate::walproposer::Config {
             ttid,

pageserver/Cargo.toml

@@ -70,7 +70,6 @@ tokio-stream.workspace = true
 tokio-util.workspace = true
 toml_edit = { workspace = true, features = [ "serde" ] }
 tracing.workspace = true
-twox-hash.workspace = true
 url.workspace = true
 walkdir.workspace = true
 metrics.workspace = true

pageserver/benches/bench_layer_map.rs

@@ -1,7 +1,7 @@
 use pageserver::keyspace::{KeyPartitioning, KeySpace};
 use pageserver::repository::Key;
 use pageserver::tenant::layer_map::LayerMap;
-use pageserver::tenant::storage_layer::LayerName;
+use pageserver::tenant::storage_layer::LayerFileName;
 use pageserver::tenant::storage_layer::PersistentLayerDesc;
 use pageserver_api::shard::TenantShardId;
 use rand::prelude::{SeedableRng, SliceRandom, StdRng};
@@ -28,7 +28,7 @@ fn build_layer_map(filename_dump: PathBuf) -> LayerMap {
     let mut updates = layer_map.batch_update();
     for fname in filenames {
         let fname = fname.unwrap();
-        let fname = LayerName::from_str(&fname).unwrap();
+        let fname = LayerFileName::from_str(&fname).unwrap();
         let layer = PersistentLayerDesc::from(fname);
 
         let lsn_range = layer.get_lsn_range();

pageserver/benches/bench_walredo.rs

@@ -27,25 +27,25 @@
 //!
 //! # Reference Numbers
 //!
-//! 2024-04-15 on i3en.3xlarge
+//! 2024-04-04 on i3en.3xlarge
 //!
 //! ```text
-//! short/1           time:   [24.584 µs 24.737 µs 24.922 µs]
-//! short/2           time:   [33.479 µs 33.660 µs 33.888 µs]
-//! short/4           time:   [42.713 µs 43.046 µs 43.440 µs]
-//! short/8           time:   [71.814 µs 72.478 µs 73.240 µs]
-//! short/16          time:   [132.73 µs 134.45 µs 136.22 µs]
-//! short/32          time:   [258.31 µs 260.73 µs 263.27 µs]
-//! short/64          time:   [511.61 µs 514.44 µs 517.51 µs]
-//! short/128         time:   [992.64 µs 998.23 µs 1.0042 ms]
-//! medium/1          time:   [110.11 µs 110.50 µs 110.96 µs]
-//! medium/2          time:   [153.06 µs 153.85 µs 154.99 µs]
-//! medium/4          time:   [317.51 µs 319.92 µs 322.85 µs]
-//! medium/8          time:   [638.30 µs 644.68 µs 652.12 µs]
-//! medium/16         time:   [1.2651 ms 1.2773 ms 1.2914 ms]
-//! medium/32         time:   [2.5117 ms 2.5410 ms 2.5720 ms]
-//! medium/64         time:   [4.8088 ms 4.8555 ms 4.9047 ms]
-//! medium/128        time:   [8.8311 ms 8.9849 ms 9.1263 ms]
+//! short/1                 time:   [25.925 µs 26.060 µs 26.209 µs]
+//! short/2                 time:   [31.277 µs 31.483 µs 31.722 µs]
+//! short/4                 time:   [45.496 µs 45.831 µs 46.182 µs]
+//! short/8                 time:   [84.298 µs 84.920 µs 85.566 µs]
+//! short/16                time:   [185.04 µs 186.41 µs 187.88 µs]
+//! short/32                time:   [385.01 µs 386.77 µs 388.70 µs]
+//! short/64                time:   [770.24 µs 773.04 µs 776.04 µs]
+//! short/128               time:   [1.5017 ms 1.5064 ms 1.5113 ms]
+//! medium/1                time:   [106.65 µs 107.20 µs 107.85 µs]
+//! medium/2                time:   [153.28 µs 154.24 µs 155.56 µs]
+//! medium/4                time:   [325.67 µs 327.01 µs 328.71 µs]
+//! medium/8                time:   [646.82 µs 650.17 µs 653.91 µs]
+//! medium/16               time:   [1.2645 ms 1.2701 ms 1.2762 ms]
+//! medium/32               time:   [2.4409 ms 2.4550 ms 2.4692 ms]
+//! medium/64               time:   [4.6814 ms 4.7114 ms 4.7408 ms]
+//! medium/128              time:   [8.7790 ms 8.9037 ms 9.0282 ms]
 //! ```
 
 use bytes::{Buf, Bytes};
@@ -74,6 +74,7 @@ fn bench(c: &mut Criterion) {
             );
         }
     }
+
     {
         let nclients = [1, 2, 4, 8, 16, 32, 64, 128];
         for nclients in nclients {
@@ -112,21 +113,20 @@ fn bench_impl(redo_work: Arc<Request>, n_redos: u64, nclients: u64) -> Duration
     let manager = PostgresRedoManager::new(conf, tenant_shard_id);
     let manager = Arc::new(manager);
 
-    // divide the amount of work equally among the clients.
-    let nredos_per_client = n_redos / nclients;
     for _ in 0..nclients {
         rt.block_on(async {
             tasks.spawn(client(
                 Arc::clone(&manager),
                 Arc::clone(&start),
                 Arc::clone(&redo_work),
-                nredos_per_client,
+                // divide the amount of work equally among the clients
+                n_redos / nclients,
             ))
         });
     }
 
     rt.block_on(async move {
-        let mut total_wallclock_time = Duration::ZERO;
+        let mut total_wallclock_time = std::time::Duration::from_millis(0);
         while let Some(res) = tasks.join_next().await {
             total_wallclock_time += res.unwrap();
         }

pageserver/client/src/mgmt_api.rs

@@ -1,12 +1,8 @@
-use std::collections::HashMap;
-
-use bytes::Bytes;
 use pageserver_api::{models::*, shard::TenantShardId};
 use reqwest::{IntoUrl, Method, StatusCode};
 use utils::{
     http::error::HttpErrorBody,
     id::{TenantId, TimelineId},
-    lsn::Lsn,
 };
 
 pub mod util;
@@ -247,19 +243,6 @@ impl Client {
         Ok(())
     }
 
-    pub async fn tenant_scan_remote_storage(
-        &self,
-        tenant_id: TenantId,
-    ) -> Result<TenantScanRemoteStorageResponse> {
-        let uri = format!(
-            "{}/v1/tenant/{tenant_id}/scan_remote_storage",
-            self.mgmt_api_endpoint
-        );
-        let response = self.request(Method::GET, &uri, ()).await?;
-        let body = response.json().await.map_err(Error::ReceiveBody)?;
-        Ok(body)
-    }
-
     pub async fn tenant_config(&self, req: &TenantConfigRequest) -> Result<()> {
         let uri = format!("{}/v1/tenant/config", self.mgmt_api_endpoint);
         self.request(Method::PUT, &uri, req).await?;
@@ -288,34 +271,6 @@ impl Client {
         Ok((status, progress))
     }
 
-    pub async fn tenant_secondary_status(
-        &self,
-        tenant_shard_id: TenantShardId,
-    ) -> Result<SecondaryProgress> {
-        let path = reqwest::Url::parse(&format!(
-            "{}/v1/tenant/{}/secondary/status",
-            self.mgmt_api_endpoint, tenant_shard_id
-        ))
-        .expect("Cannot build URL");
-
-        self.request(Method::GET, path, ())
-            .await?
-            .json()
-            .await
-            .map_err(Error::ReceiveBody)
-    }
-
-    pub async fn tenant_heatmap_upload(&self, tenant_id: TenantShardId) -> Result<()> {
-        let path = reqwest::Url::parse(&format!(
-            "{}/v1/tenant/{}/heatmap_upload",
-            self.mgmt_api_endpoint, tenant_id
-        ))
-        .expect("Cannot build URL");
-
-        self.request(Method::POST, path, ()).await?;
-        Ok(())
-    }
-
     pub async fn location_config(
         &self,
         tenant_shard_id: TenantShardId,
@@ -323,7 +278,10 @@ impl Client {
         flush_ms: Option<std::time::Duration>,
         lazy: bool,
     ) -> Result<()> {
-        let req_body = TenantLocationConfigRequest { config };
+        let req_body = TenantLocationConfigRequest {
+            tenant_id: Some(tenant_shard_id),
+            config,
+        };
 
         let mut path = reqwest::Url::parse(&format!(
             "{}/v1/tenant/{}/location_config",
@@ -490,18 +448,6 @@ impl Client {
             .map_err(Error::ReceiveBody)
     }
 
-    pub async fn top_tenant_shards(
-        &self,
-        request: TopTenantShardsRequest,
-    ) -> Result<TopTenantShardsResponse> {
-        let uri = format!("{}/v1/top_tenants", self.mgmt_api_endpoint);
-        self.request(Method::POST, uri, request)
-            .await?
-            .json()
-            .await
-            .map_err(Error::ReceiveBody)
-    }
-
     pub async fn layer_map_info(
         &self,
         tenant_shard_id: TenantShardId,
@@ -565,57 +511,4 @@ impl Client {
             }),
         }
     }
-
-    pub async fn ingest_aux_files(
-        &self,
-        tenant_shard_id: TenantShardId,
-        timeline_id: TimelineId,
-        aux_files: HashMap<String, String>,
-    ) -> Result<bool> {
-        let uri = format!(
-            "{}/v1/tenant/{}/timeline/{}/ingest_aux_files",
-            self.mgmt_api_endpoint, tenant_shard_id, timeline_id
-        );
-        let resp = self
-            .request_noerror(Method::POST, &uri, IngestAuxFilesRequest { aux_files })
-            .await?;
-        match resp.status() {
-            StatusCode::OK => Ok(true),
-            status => Err(match resp.json::<HttpErrorBody>().await {
-                Ok(HttpErrorBody { msg }) => Error::ApiError(status, msg),
-                Err(_) => {
-                    Error::ReceiveErrorBody(format!("Http error ({}) at {}.", status.as_u16(), uri))
-                }
-            }),
-        }
-    }
-
-    pub async fn list_aux_files(
-        &self,
-        tenant_shard_id: TenantShardId,
-        timeline_id: TimelineId,
-        lsn: Lsn,
-    ) -> Result<HashMap<String, Bytes>> {
-        let uri = format!(
-            "{}/v1/tenant/{}/timeline/{}/list_aux_files",
-            self.mgmt_api_endpoint, tenant_shard_id, timeline_id
-        );
-        let resp = self
-            .request_noerror(Method::POST, &uri, ListAuxFilesRequest { lsn })
-            .await?;
-        match resp.status() {
-            StatusCode::OK => {
-                let resp: HashMap<String, Bytes> = resp.json().await.map_err(|e| {
-                    Error::ApiError(StatusCode::INTERNAL_SERVER_ERROR, format!("{e}"))
-                })?;
-                Ok(resp)
-            }
-            status => Err(match resp.json::<HttpErrorBody>().await {
-                Ok(HttpErrorBody { msg }) => Error::ApiError(status, msg),
-                Err(_) => {
-                    Error::ReceiveErrorBody(format!("Http error ({}) at {}.", status.as_u16(), uri))
-                }
-            }),
-        }
-    }
 }

pageserver/client/src/page_service.rs

@@ -60,7 +60,7 @@ impl Client {
     ) -> anyhow::Result<PagestreamClient> {
         let copy_both: tokio_postgres::CopyBothDuplex<bytes::Bytes> = self
             .client
-            .copy_both_simple(&format!("pagestream_v2 {tenant_id} {timeline_id}"))
+            .copy_both_simple(&format!("pagestream {tenant_id} {timeline_id}"))
             .await?;
         let Client {
             cancel_on_client_drop,

pageserver/compaction/src/bin/compaction-simulator.rs

@@ -1,5 +1,4 @@
 use clap::{Parser, Subcommand};
-use pageserver_compaction::helpers::PAGE_SZ;
 use pageserver_compaction::simulator::MockTimeline;
 use rand::Rng;
 use std::io::Write;
@@ -52,7 +51,7 @@ async fn simulate(cmd: &SimulateCmd, results_path: &Path) -> anyhow::Result<()>
     let mut executor = MockTimeline::new();
 
     // Convert the logical size in MB into a key range.
-    let key_range = 0..((cmd.logical_size * 1024 * 1024) / PAGE_SZ);
+    let key_range = 0..((cmd.logical_size * 1024 * 1024) / 8192);
     //let key_range = u64::MIN..u64::MAX;
     println!(
         "starting simulation with key range {:016X}-{:016X}",

pageserver/compaction/src/compact_tiered.rs

@@ -18,15 +18,12 @@
 //! database size. For example, if the logical database size is 10 GB, we would
 //! generate new image layers every 10 GB of WAL.
 use futures::StreamExt;
-use pageserver_api::shard::ShardIdentity;
 use tracing::{debug, info};
 
 use std::collections::{HashSet, VecDeque};
 use std::ops::Range;
 
-use crate::helpers::{
-    accum_key_values, keyspace_total_size, merge_delta_keys_buffered, overlaps_with, PAGE_SZ,
-};
+use crate::helpers::{accum_key_values, keyspace_total_size, merge_delta_keys, overlaps_with};
 use crate::interface::*;
 use utils::lsn::Lsn;
 
@@ -106,13 +103,7 @@ pub async fn compact_tiered<E: CompactionJobExecutor>(
             ctx,
         )
         .await?;
-        if current_level_target_height == u64::MAX {
-            // our target height includes all possible lsns
-            info!(
-                level = current_level_no,
-                depth = depth,
-                "compaction loop reached max current_level_target_height"
-            );
+        if target_file_size == u64::MAX {
             break;
         }
         current_level_no += 1;
@@ -134,7 +125,6 @@ async fn compact_level<E: CompactionJobExecutor>(
     }
 
     let mut state = LevelCompactionState {
-        shard_identity: *executor.get_shard_identity(),
         target_file_size,
         _lsn_range: lsn_range.clone(),
         layers: layer_fragments,
@@ -174,8 +164,6 @@ struct LevelCompactionState<'a, E>
 where
     E: CompactionJobExecutor,
 {
-    shard_identity: ShardIdentity,
-
     // parameters
     target_file_size: u64,
 
@@ -378,8 +366,7 @@ where
                 .executor
                 .get_keyspace(&job.key_range, job.lsn_range.end, ctx)
                 .await?,
-            &self.shard_identity,
-        ) * PAGE_SZ;
+        ) * 8192;
 
         let wal_size = job
             .input_layers
@@ -441,9 +428,9 @@ where
         let mut window = KeyspaceWindow::new(
             E::Key::MIN..E::Key::MAX,
             keyspace,
-            self.target_file_size / PAGE_SZ,
+            self.target_file_size / 8192,
         );
-        while let Some(key_range) = window.choose_next_image(&self.shard_identity) {
+        while let Some(key_range) = window.choose_next_image() {
             new_jobs.push(CompactionJob::<E> {
                 key_range,
                 lsn_range: job.lsn_range.clone(),
@@ -530,6 +517,8 @@ where
         // If we have accumulated only a narrow band of keyspace, create an
         // image layer. Otherwise write a delta layer.
 
+        // FIXME: deal with the case of lots of values for same key
+
         // FIXME: we are ignoring images here. Did we already divide the work
         // so that we won't encounter them here?
 
@@ -541,100 +530,42 @@ where
             }
         }
         // Open stream
-        let key_value_stream =
-            std::pin::pin!(merge_delta_keys_buffered::<E>(deltas.as_slice(), ctx)
-                .await?
-                .map(Result::<_, anyhow::Error>::Ok));
+        let key_value_stream = std::pin::pin!(merge_delta_keys::<E>(deltas.as_slice(), ctx));
         let mut new_jobs = Vec::new();
 
         // Slide a window through the keyspace
-        let mut key_accum =
-            std::pin::pin!(accum_key_values(key_value_stream, self.target_file_size));
+        let mut key_accum = std::pin::pin!(accum_key_values(key_value_stream));
         let mut all_in_window: bool = false;
         let mut window = Window::new();
-
-        // Helper function to create a job for a new delta layer with given key-lsn
-        // rectangle.
-        let create_delta_job = |key_range, lsn_range: &Range<Lsn>, new_jobs: &mut Vec<_>| {
-            // The inputs for the job are all the input layers of the original job that
-            // overlap with the rectangle.
-            let batch_layers: Vec<LayerId> = job
-                .input_layers
-                .iter()
-                .filter(|layer_id| {
-                    overlaps_with(self.layers[layer_id.0].layer.key_range(), &key_range)
-                })
-                .cloned()
-                .collect();
-            assert!(!batch_layers.is_empty());
-            new_jobs.push(CompactionJob {
-                key_range,
-                lsn_range: lsn_range.clone(),
-                strategy: CompactionStrategy::CreateDelta,
-                input_layers: batch_layers,
-                completed: false,
-            });
-        };
-
         loop {
-            if all_in_window && window.is_empty() {
+            if all_in_window && window.elems.is_empty() {
                 // All done!
                 break;
             }
-
-            // If we now have enough keyspace for next delta layer in the window, create a
-            // new delta layer
             if let Some(key_range) = window.choose_next_delta(self.target_file_size, !all_in_window)
             {
-                create_delta_job(key_range, &job.lsn_range, &mut new_jobs);
-                continue;
-            }
-            assert!(!all_in_window);
-
-            // Process next key in the key space
-            match key_accum.next().await.transpose()? {
-                None => {
-                    all_in_window = true;
-                }
-                Some(next_key) if next_key.partition_lsns.is_empty() => {
-                    // Normal case: extend the window by the key
+                let batch_layers: Vec<LayerId> = job
+                    .input_layers
+                    .iter()
+                    .filter(|layer_id| {
+                        overlaps_with(self.layers[layer_id.0].layer.key_range(), &key_range)
+                    })
+                    .cloned()
+                    .collect();
+                assert!(!batch_layers.is_empty());
+                new_jobs.push(CompactionJob {
+                    key_range,
+                    lsn_range: job.lsn_range.clone(),
+                    strategy: CompactionStrategy::CreateDelta,
+                    input_layers: batch_layers,
+                    completed: false,
+                });
+            } else {
+                assert!(!all_in_window);
+                if let Some(next_key) = key_accum.next().await.transpose()? {
                     window.feed(next_key.key, next_key.size);
-                }
-                Some(next_key) => {
-                    // A key with too large size impact for a single delta layer. This
-                    // case occurs if you make a huge number of updates for a single key.
-                    //
-                    // Drain the window with has_more = false to make a clean cut before
-                    // the key, and then make dedicated delta layers for the single key.
-                    //
-                    // We cannot cluster the key with the others, because we don't want
-                    // layer files to overlap with each other in the lsn,key space (no
-                    // overlaps for the rectangles).
-                    let key = next_key.key;
-                    debug!("key {key} with size impact larger than the layer size");
-                    while !window.is_empty() {
-                        let has_more = false;
-                        let key_range = window.choose_next_delta(self.target_file_size, has_more)
-                            .expect("with has_more==false, choose_next_delta always returns something for a non-empty Window");
-                        create_delta_job(key_range, &job.lsn_range, &mut new_jobs);
-                    }
-
-                    // Not really required: but here for future resilience:
-                    // We make a "gap" here, so any structure the window holds should
-                    // probably be reset.
-                    window = Window::new();
-
-                    let mut prior_lsn = job.lsn_range.start;
-                    let mut lsn_ranges = Vec::new();
-                    for (lsn, _size) in next_key.partition_lsns.iter() {
-                        lsn_ranges.push(prior_lsn..*lsn);
-                        prior_lsn = *lsn;
-                    }
-                    lsn_ranges.push(prior_lsn..job.lsn_range.end);
-                    for lsn_range in lsn_ranges {
-                        let key_range = key..key.next();
-                        create_delta_job(key_range, &lsn_range, &mut new_jobs);
-                    }
+                } else {
+                    all_in_window = true;
                 }
             }
         }
@@ -663,8 +594,8 @@ where
     }
 }
 
-/// Sliding window through keyspace and values for image layer
-/// This is used by [`LevelCompactionState::cover_with_images`] to decide on good split points
+// Sliding window through keyspace and values
+// This is used by over_with_images to decide on good split points
 struct KeyspaceWindow<K> {
     head: KeyspaceWindowHead<K>,
 
@@ -692,12 +623,7 @@ impl<K: CompactionKey> KeyspaceWindowPos<K> {
     }
 
     // Advance the cursor until it reaches 'target_keysize'.
-    fn advance_until_size(
-        &mut self,
-        w: &KeyspaceWindowHead<K>,
-        max_size: u64,
-        shard_identity: &ShardIdentity,
-    ) {
+    fn advance_until_size(&mut self, w: &KeyspaceWindowHead<K>, max_size: u64) {
         while self.accum_keysize < max_size && !self.reached_end(w) {
             let curr_range = &w.keyspace[self.keyspace_idx];
             if self.end_key < curr_range.start {
@@ -706,7 +632,7 @@ impl<K: CompactionKey> KeyspaceWindowPos<K> {
             }
 
             // We're now within 'curr_range'. Can we advance past it completely?
-            let distance = K::key_range_size(&(self.end_key..curr_range.end), shard_identity);
+            let distance = K::key_range_size(&(self.end_key..curr_range.end));
             if (self.accum_keysize + distance as u64) < max_size {
                 // oh yeah, it fits
                 self.end_key = curr_range.end;
@@ -715,7 +641,7 @@ impl<K: CompactionKey> KeyspaceWindowPos<K> {
             } else {
                 // advance within the range
                 let skip_key = self.end_key.skip_some();
-                let distance = K::key_range_size(&(self.end_key..skip_key), shard_identity);
+                let distance = K::key_range_size(&(self.end_key..skip_key));
                 if (self.accum_keysize + distance as u64) < max_size {
                     self.end_key = skip_key;
                     self.accum_keysize += distance as u64;
@@ -751,7 +677,7 @@ where
         }
     }
 
-    fn choose_next_image(&mut self, shard_identity: &ShardIdentity) -> Option<Range<K>> {
+    fn choose_next_image(&mut self) -> Option<Range<K>> {
         if self.start_pos.keyspace_idx == self.head.keyspace.len() {
             // we've reached the end
             return None;
@@ -761,7 +687,6 @@ where
         next_pos.advance_until_size(
             &self.head,
             self.start_pos.accum_keysize + self.head.target_keysize,
-            shard_identity,
         );
 
         // See if we can gobble up the rest of the keyspace if we stretch out the layer, up to
@@ -770,7 +695,6 @@ where
         end_pos.advance_until_size(
             &self.head,
             self.start_pos.accum_keysize + (self.head.target_keysize * 5 / 4),
-            shard_identity,
         );
         if end_pos.reached_end(&self.head) {
             // gobble up any unused keyspace between the last used key and end of the range
@@ -804,9 +728,9 @@ struct WindowElement<K> {
     accum_size: u64,
 }
 
-/// Sliding window through keyspace and values for delta layer tiling
-///
-/// This is used to decide which delta layer to write next.
+// Sliding window through keyspace and values
+//
+// This is used to decide what layer to write next, from the beginning of the window.
 struct Window<K> {
     elems: VecDeque<WindowElement<K>>,
 
@@ -830,13 +754,11 @@ where
     fn feed(&mut self, key: K, size: u64) {
         let last_size;
         if let Some(last) = self.elems.back_mut() {
-            // We require the keys to be strictly increasing for the window.
-            // Keys should already have been deduplicated by `accum_key_values`
-            assert!(
-                last.last_key < key,
-                "last_key(={}) >= key(={key})",
-                last.last_key
-            );
+            assert!(last.last_key <= key);
+            if key == last.last_key {
+                last.accum_size += size;
+                return;
+            }
             last_size = last.accum_size;
         } else {
             last_size = 0;
@@ -858,10 +780,6 @@ where
         self.elems.front().unwrap().accum_size - self.splitoff_size
     }
 
-    fn is_empty(&self) -> bool {
-        self.elems.is_empty()
-    }
-
     fn commit_upto(&mut self, mut upto: usize) {
         while upto > 1 {
             let popped = self.elems.pop_front().unwrap();
@@ -924,7 +842,7 @@ where
         // If we're willing to stretch it up to 1.25 target size, could we
         // gobble up the rest of the work? This avoids creating very small
         // "tail" layers at the end of the keyspace
-        if !has_more && self.remain_size() < target_size * 5 / 4 {
+        if !has_more && self.remain_size() < target_size * 5 / 3 {
             self.commit_upto(self.elems.len());
         } else {
             let delta_split_at = self.find_size_split(target_size);

pageserver/compaction/src/helpers.rs

@@ -5,30 +5,19 @@ use crate::interface::*;
 use futures::future::BoxFuture;
 use futures::{Stream, StreamExt};
 use itertools::Itertools;
-use pageserver_api::shard::ShardIdentity;
 use pin_project_lite::pin_project;
 use std::collections::BinaryHeap;
 use std::collections::VecDeque;
-use std::fmt::Display;
 use std::future::Future;
 use std::ops::{DerefMut, Range};
 use std::pin::Pin;
 use std::task::{ready, Poll};
-use utils::lsn::Lsn;
 
-pub const PAGE_SZ: u64 = 8192;
-
-pub fn keyspace_total_size<K>(
-    keyspace: &CompactionKeySpace<K>,
-    shard_identity: &ShardIdentity,
-) -> u64
+pub fn keyspace_total_size<K>(keyspace: &CompactionKeySpace<K>) -> u64
 where
     K: CompactionKey,
 {
-    keyspace
-        .iter()
-        .map(|r| K::key_range_size(r, shard_identity) as u64)
-        .sum()
+    keyspace.iter().map(|r| K::key_range_size(r) as u64).sum()
 }
 
 pub fn overlaps_with<T: Ord>(a: &Range<T>, b: &Range<T>) -> bool {
@@ -112,40 +101,17 @@ pub fn merge_delta_keys<'a, E: CompactionJobExecutor>(
     }
 }
 
-pub async fn merge_delta_keys_buffered<'a, E: CompactionJobExecutor + 'a>(
-    layers: &'a [E::DeltaLayer],
-    ctx: &'a E::RequestContext,
-) -> anyhow::Result<impl Stream<Item = <E::DeltaLayer as CompactionDeltaLayer<E>>::DeltaEntry<'a>>>
-{
-    let mut keys = Vec::new();
-    for l in layers {
-        // Boxing and casting to LoadFuture is required to obtain the right Sync bound.
-        // If we do l.load_keys(ctx).await? directly, there is a compilation error.
-        let load_future: LoadFuture<'a, _> = Box::pin(l.load_keys(ctx));
-        keys.extend(load_future.await?.into_iter());
-    }
-    keys.sort_by_key(|k| (k.key(), k.lsn()));
-    let stream = futures::stream::iter(keys.into_iter());
-    Ok(stream)
-}
-
 enum LazyLoadLayer<'a, E: CompactionJobExecutor> {
     Loaded(VecDeque<<E::DeltaLayer as CompactionDeltaLayer<E>>::DeltaEntry<'a>>),
     Unloaded(&'a E::DeltaLayer),
 }
 impl<'a, E: CompactionJobExecutor> LazyLoadLayer<'a, E> {
-    fn min_key(&self) -> E::Key {
+    fn key(&self) -> E::Key {
         match self {
             Self::Loaded(entries) => entries.front().unwrap().key(),
             Self::Unloaded(dl) => dl.key_range().start,
         }
     }
-    fn min_lsn(&self) -> Lsn {
-        match self {
-            Self::Loaded(entries) => entries.front().unwrap().lsn(),
-            Self::Unloaded(dl) => dl.lsn_range().start,
-        }
-    }
 }
 impl<'a, E: CompactionJobExecutor> PartialOrd for LazyLoadLayer<'a, E> {
     fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
@@ -155,12 +121,12 @@ impl<'a, E: CompactionJobExecutor> PartialOrd for LazyLoadLayer<'a, E> {
 impl<'a, E: CompactionJobExecutor> Ord for LazyLoadLayer<'a, E> {
     fn cmp(&self, other: &Self) -> std::cmp::Ordering {
         // reverse order so that we get a min-heap
-        (other.min_key(), other.min_lsn()).cmp(&(self.min_key(), self.min_lsn()))
+        other.key().cmp(&self.key())
     }
 }
 impl<'a, E: CompactionJobExecutor> PartialEq for LazyLoadLayer<'a, E> {
     fn eq(&self, other: &Self) -> bool {
-        self.cmp(other) == std::cmp::Ordering::Equal
+        self.key().eq(&other.key())
     }
 }
 impl<'a, E: CompactionJobExecutor> Eq for LazyLoadLayer<'a, E> {}
@@ -237,16 +203,11 @@ pub struct KeySize<K> {
     pub key: K,
     pub num_values: u64,
     pub size: u64,
-    /// The lsns to partition at (if empty then no per-lsn partitioning)
-    pub partition_lsns: Vec<(Lsn, u64)>,
 }
 
-pub fn accum_key_values<'a, I, K, D, E>(
-    input: I,
-    target_size: u64,
-) -> impl Stream<Item = Result<KeySize<K>, E>>
+pub fn accum_key_values<'a, I, K, D, E>(input: I) -> impl Stream<Item = Result<KeySize<K>, E>>
 where
-    K: Eq + PartialOrd + Display + Copy,
+    K: Eq,
     I: Stream<Item = Result<D, E>>,
     D: CompactionDeltaEntry<'a, K>,
 {
@@ -256,39 +217,25 @@ where
 
         if let Some(first) = input.next().await {
             let first = first?;
-            let mut part_size = first.size();
             let mut accum: KeySize<K> = KeySize {
                 key: first.key(),
                 num_values: 1,
-                size: part_size,
-                partition_lsns: Vec::new(),
+                size: first.size(),
             };
-            let mut last_key = accum.key;
             while let Some(this) = input.next().await {
                 let this = this?;
                 if this.key() == accum.key {
-                    let add_size = this.size();
-                    if part_size + add_size > target_size {
-                        accum.partition_lsns.push((this.lsn(), part_size));
-                        part_size = 0;
-                    }
-                    part_size += add_size;
-                    accum.size += add_size;
+                    accum.size += this.size();
                     accum.num_values += 1;
                 } else {
-                    assert!(last_key <= accum.key, "last_key={last_key} <= accum.key={}", accum.key);
-                    last_key = accum.key;
                     yield accum;
-                    part_size = this.size();
                     accum = KeySize {
                         key: this.key(),
                         num_values: 1,
-                        size: part_size,
-                        partition_lsns: Vec::new(),
+                        size: this.size(),
                     };
                 }
             }
-            assert!(last_key <= accum.key, "last_key={last_key} <= accum.key={}", accum.key);
             yield accum;
         }
     }

pageserver/compaction/src/identify_levels.rs

@@ -184,12 +184,6 @@ impl<L> Level<L> {
         }
         let mut events: Vec<Event<K>> = Vec::new();
         for (idx, l) in self.layers.iter().enumerate() {
-            let key_range = l.key_range();
-            if key_range.end == key_range.start.next() && l.is_delta() {
-                // Ignore single-key delta layers as they can be stacked on top of each other
-                // as that is the only way to cut further.
-                continue;
-            }
             events.push(Event {
                 key: l.key_range().start,
                 layer_idx: idx,

pageserver/compaction/src/interface.rs

@@ -4,7 +4,7 @@
 //! All the heavy lifting is done by the create_image and create_delta
 //! functions that the implementor provides.
 use futures::Future;
-use pageserver_api::{key::Key, keyspace::ShardedRange, shard::ShardIdentity};
+use pageserver_api::{key::Key, keyspace::key_range_size};
 use std::ops::Range;
 use utils::lsn::Lsn;
 
@@ -32,8 +32,6 @@ pub trait CompactionJobExecutor {
     // Functions that the planner uses to support its decisions
     // ----
 
-    fn get_shard_identity(&self) -> &ShardIdentity;
-
     /// Return all layers that overlap the given bounding box.
     fn get_layers(
         &mut self,
@@ -100,7 +98,7 @@ pub trait CompactionKey: std::cmp::Ord + Clone + Copy + std::fmt::Display {
     ///
     /// This returns u32, for compatibility with Repository::key. If the
     /// distance is larger, return u32::MAX.
-    fn key_range_size(key_range: &Range<Self>, shard_identity: &ShardIdentity) -> u32;
+    fn key_range_size(key_range: &Range<Self>) -> u32;
 
     // return "self + 1"
     fn next(&self) -> Self;
@@ -115,8 +113,8 @@ impl CompactionKey for Key {
     const MIN: Self = Self::MIN;
     const MAX: Self = Self::MAX;
 
-    fn key_range_size(r: &std::ops::Range<Self>, shard_identity: &ShardIdentity) -> u32 {
-        ShardedRange::new(r.clone(), shard_identity).page_count()
+    fn key_range_size(r: &std::ops::Range<Self>) -> u32 {
+        key_range_size(r)
     }
     fn next(&self) -> Key {
         (self as &Key).next()

pageserver/compaction/src/simulator.rs

@@ -3,7 +3,6 @@ mod draw;
 use draw::{LayerTraceEvent, LayerTraceFile, LayerTraceOp};
 
 use futures::StreamExt;
-use pageserver_api::shard::ShardIdentity;
 use rand::Rng;
 use tracing::info;
 
@@ -14,7 +13,6 @@ use std::ops::Range;
 use std::sync::Arc;
 use std::sync::Mutex;
 
-use crate::helpers::PAGE_SZ;
 use crate::helpers::{merge_delta_keys, overlaps_with};
 
 use crate::interface;
@@ -73,7 +71,7 @@ impl interface::CompactionKey for Key {
     const MIN: Self = u64::MIN;
     const MAX: Self = u64::MAX;
 
-    fn key_range_size(key_range: &Range<Self>, _shard_identity: &ShardIdentity) -> u32 {
+    fn key_range_size(key_range: &Range<Self>) -> u32 {
         std::cmp::min(key_range.end - key_range.start, u32::MAX as u64) as u32
     }
 
@@ -380,8 +378,8 @@ impl interface::CompactionLayer<Key> for MockLayer {
     }
     fn file_size(&self) -> u64 {
         match self {
-            MockLayer::Delta(this) => this.file_size,
-            MockLayer::Image(this) => this.file_size,
+            MockLayer::Delta(this) => this.file_size(),
+            MockLayer::Image(this) => this.file_size(),
         }
     }
     fn short_id(&self) -> String {
@@ -436,11 +434,6 @@ impl interface::CompactionJobExecutor for MockTimeline {
     type ImageLayer = Arc<MockImageLayer>;
     type RequestContext = MockRequestContext;
 
-    fn get_shard_identity(&self) -> &ShardIdentity {
-        static IDENTITY: ShardIdentity = ShardIdentity::unsharded();
-        &IDENTITY
-    }
-
     async fn get_layers(
         &mut self,
         key_range: &Range<Self::Key>,
@@ -510,7 +503,7 @@ impl interface::CompactionJobExecutor for MockTimeline {
         let new_layer = Arc::new(MockImageLayer {
             key_range: key_range.clone(),
             lsn_range: lsn..lsn,
-            file_size: accum_size * PAGE_SZ,
+            file_size: accum_size * 8192,
             deleted: Mutex::new(false),
         });
         info!(

pageserver/compaction/tests/tests.rs

@@ -1,35 +1,23 @@
-use once_cell::sync::OnceCell;
 use pageserver_compaction::interface::CompactionLayer;
 use pageserver_compaction::simulator::MockTimeline;
-use utils::logging;
-
-static LOG_HANDLE: OnceCell<()> = OnceCell::new();
-
-pub(crate) fn setup_logging() {
-    LOG_HANDLE.get_or_init(|| {
-        logging::init(
-            logging::LogFormat::Test,
-            logging::TracingErrorLayerEnablement::EnableWithRustLogFilter,
-            logging::Output::Stdout,
-        )
-        .expect("Failed to init test logging")
-    });
-}
 
 /// Test the extreme case that there are so many updates for a single key that
 /// even if we produce an extremely narrow delta layer, spanning just that one
 /// key, we still too many records to fit in the target file size. We need to
 /// split in the LSN dimension too in that case.
+///
+/// TODO: The code to avoid this problem has not been implemented yet! So the
+/// assertion currently fails, but we need to make it not fail.
+#[ignore]
 #[tokio::test]
 async fn test_many_updates_for_single_key() {
-    setup_logging();
     let mut executor = MockTimeline::new();
-    executor.target_file_size = 1_000_000; // 1 MB
+    executor.target_file_size = 10_000_000; // 10 MB
 
-    // Ingest 10 MB of updates to a single key.
+    // Ingest 100 MB of updates to a single key.
     for _ in 1..1000 {
         executor.ingest_uniform(100, 10, &(0..100_000)).unwrap();
-        executor.ingest_uniform(1000, 10, &(0..1)).unwrap();
+        executor.ingest_uniform(10_000, 10, &(0..1)).unwrap();
         executor.compact().await.unwrap();
     }
 
@@ -39,32 +27,9 @@ async fn test_many_updates_for_single_key() {
     }
     for l in executor.live_layers.iter() {
         assert!(l.file_size() < executor.target_file_size * 2);
-        // Sanity check that none of the delta layers are empty either.
+        // sanity check that none of the delta layers are stupidly small either
         if l.is_delta() {
-            assert!(l.file_size() > 0);
+            assert!(l.file_size() > executor.target_file_size / 2);
         }
     }
 }
-
-#[tokio::test]
-async fn test_simple_updates() {
-    setup_logging();
-    let mut executor = MockTimeline::new();
-    executor.target_file_size = 500_000; // 500 KB
-
-    // Ingest some traffic.
-    for _ in 1..400 {
-        executor.ingest_uniform(100, 500, &(0..100_000)).unwrap();
-    }
-
-    for l in executor.live_layers.iter() {
-        println!("layer {}: {}", l.short_id(), l.file_size());
-    }
-
-    println!("Running compaction...");
-    executor.compact().await.unwrap();
-
-    for l in executor.live_layers.iter() {
-        println!("layer {}: {}", l.short_id(), l.file_size());
-    }
-}

pageserver/ctl/src/draw_timeline_dir.rs

@@ -9,49 +9,21 @@
 //! Coordinates in both axis are compressed for better readability.
 //! (see <https://medium.com/algorithms-digest/coordinate-compression-2fff95326fb>)
 //!
-//! The plain text API was chosen so that we can easily work with filenames from various
-//! sources; see the Usage section below for examples.
-//!
-//! # Usage
-//!
-//! ## Producing the SVG
-//!
+//! Example use:
 //! ```bash
-//!
-//! # local timeline dir
-//! ls test_output/test_pgbench\[neon-45-684\]/repo/tenants/$TENANT/timelines/$TIMELINE | \
-//!     grep "__" | cargo run --release --bin pagectl draw-timeline-dir > out.svg
-//!
-//! # Layer map dump from `/v1/tenant/$TENANT/timeline/$TIMELINE/layer`
-//! (jq -r '.historic_layers[] | .layer_file_name' | cargo  run -p pagectl draw-timeline) < layer-map.json > out.svg
-//!
-//! # From an `index_part.json` in S3
-//! (jq -r '.layer_metadata | keys[]' | cargo  run -p pagectl draw-timeline ) < index_part.json-00000016 > out.svg
-//!
-//! # enrich with lines for gc_cutoff and a child branch point
-//! cat <(jq -r '.historic_layers[] | .layer_file_name' < layers.json) <(echo -e 'gc_cutoff:0000001CE3FE32C9\nbranch:0000001DE3FE32C9') | cargo run --bin pagectl draw-timeline >| out.svg
+//! $ ls test_output/test_pgbench\[neon-45-684\]/repo/tenants/$TENANT/timelines/$TIMELINE | \
+//! $   grep "__" | cargo run --release --bin pagectl draw-timeline-dir > out.svg
+//! $ firefox out.svg
 //! ```
 //!
-//! ## Viewing
+//! This API was chosen so that we can easily work with filenames extracted from ssh,
+//! or from pageserver log files.
 //!
-//! **Inkscape** is better than the built-in viewers in browsers.
-//!
-//! After selecting a layer file rectangle, use "Open XML Editor" (Ctrl|Cmd + Shift + X)
-//! to see the layer file name in the comment field.
-//!
-//! ```bash
-//!
-//! # Linux
-//! inkscape out.svg
-//!
-//! # macOS
-//! /Applications/Inkscape.app/Contents/MacOS/inkscape out.svg
-//!
-//! ```
-//!
-
-use anyhow::{Context, Result};
+//! TODO Consider shipping this as a grafana panel plugin:
+//!      <https://grafana.com/tutorials/build-a-panel-plugin/>
+use anyhow::Result;
 use pageserver::repository::Key;
+use pageserver::METADATA_FILE_NAME;
 use std::cmp::Ordering;
 use std::io::{self, BufRead};
 use std::path::PathBuf;
@@ -82,11 +54,6 @@ fn parse_filename(name: &str) -> (Range<Key>, Range<Lsn>) {
     let split: Vec<&str> = name.split("__").collect();
     let keys: Vec<&str> = split[0].split('-').collect();
     let mut lsns: Vec<&str> = split[1].split('-').collect();
-
-    if lsns.last().expect("should").len() == 8 {
-        lsns.pop();
-    }
-
     if lsns.len() == 1 {
         lsns.push(lsns[0]);
     }
@@ -96,94 +63,33 @@ fn parse_filename(name: &str) -> (Range<Key>, Range<Lsn>) {
     (keys, lsns)
 }
 
-#[derive(Clone, Copy)]
-enum LineKind {
-    GcCutoff,
-    Branch,
-}
-
-impl From<LineKind> for Fill {
-    fn from(value: LineKind) -> Self {
-        match value {
-            LineKind::GcCutoff => Fill::Color(rgb(255, 0, 0)),
-            LineKind::Branch => Fill::Color(rgb(0, 255, 0)),
-        }
-    }
-}
-
-impl FromStr for LineKind {
-    type Err = anyhow::Error;
-
-    fn from_str(s: &str) -> std::prelude::v1::Result<Self, Self::Err> {
-        Ok(match s {
-            "gc_cutoff" => LineKind::GcCutoff,
-            "branch" => LineKind::Branch,
-            _ => anyhow::bail!("unsupported linekind: {s}"),
-        })
-    }
-}
-
 pub fn main() -> Result<()> {
     // Parse layer filenames from stdin
-    struct Layer {
-        filename: String,
-        key_range: Range<Key>,
-        lsn_range: Range<Lsn>,
-    }
-    let mut files: Vec<Layer> = vec![];
+    let mut ranges: Vec<(Range<Key>, Range<Lsn>)> = vec![];
     let stdin = io::stdin();
-
-    let mut lines: Vec<(Lsn, LineKind)> = vec![];
-
-    for (lineno, line) in stdin.lock().lines().enumerate() {
-        let lineno = lineno + 1;
-
+    for line in stdin.lock().lines() {
         let line = line.unwrap();
-        if let Some((kind, lsn)) = line.split_once(':') {
-            let (kind, lsn) = LineKind::from_str(kind)
-                .context("parse kind")
-                .and_then(|kind| {
-                    if lsn.contains('/') {
-                        Lsn::from_str(lsn)
-                    } else {
-                        Lsn::from_hex(lsn)
-                    }
-                    .map(|lsn| (kind, lsn))
-                    .context("parse lsn")
-                })
-                .with_context(|| format!("parse {line:?} on {lineno}"))?;
-            lines.push((lsn, kind));
-            continue;
-        }
         let line = PathBuf::from_str(&line).unwrap();
         let filename = line.file_name().unwrap();
         let filename = filename.to_str().unwrap();
-        let (key_range, lsn_range) = parse_filename(filename);
-        files.push(Layer {
-            filename: filename.to_owned(),
-            key_range,
-            lsn_range,
-        });
+        if filename == METADATA_FILE_NAME {
+            // Don't try and parse "metadata" like a key-lsn range
+            continue;
+        }
+        let range = parse_filename(filename);
+        ranges.push(range);
     }
 
     // Collect all coordinates
-    let mut keys: Vec<Key> = Vec::with_capacity(files.len());
-    let mut lsns: Vec<Lsn> = Vec::with_capacity(files.len() + lines.len());
-
-    for Layer {
-        key_range: keyr,
-        lsn_range: lsnr,
-        ..
-    } in &files
-    {
+    let mut keys: Vec<Key> = vec![];
+    let mut lsns: Vec<Lsn> = vec![];
+    for (keyr, lsnr) in &ranges {
         keys.push(keyr.start);
         keys.push(keyr.end);
         lsns.push(lsnr.start);
         lsns.push(lsnr.end);
     }
 
-    lsns.extend(lines.iter().map(|(lsn, _)| *lsn));
-
     // Analyze
     let key_map = build_coordinate_compression_map(keys);
     let lsn_map = build_coordinate_compression_map(lsns);
@@ -197,19 +103,11 @@ pub fn main() -> Result<()> {
     println!(
         "{}",
         BeginSvg {
-            w: (key_map.len() + 10) as f32,
+            w: key_map.len() as f32,
             h: stretch * lsn_map.len() as f32
         }
     );
-
-    let xmargin = 0.05; // Height-dependent margin to disambiguate overlapping deltas
-
-    for Layer {
-        filename,
-        key_range: keyr,
-        lsn_range: lsnr,
-    } in &files
-    {
+    for (keyr, lsnr) in &ranges {
         let key_start = *key_map.get(&keyr.start).unwrap();
         let key_end = *key_map.get(&keyr.end).unwrap();
         let key_diff = key_end - key_start;
@@ -225,6 +123,7 @@ pub fn main() -> Result<()> {
         let mut lsn_diff = (lsn_end - lsn_start) as f32;
         let mut fill = Fill::None;
         let mut ymargin = 0.05 * lsn_diff; // Height-dependent margin to disambiguate overlapping deltas
+        let xmargin = 0.05; // Height-dependent margin to disambiguate overlapping deltas
         let mut lsn_offset = 0.0;
 
         // Fill in and thicken rectangle if it's an
@@ -244,7 +143,7 @@ pub fn main() -> Result<()> {
         println!(
             "    {}",
             rectangle(
-                5.0 + key_start as f32 + stretch * xmargin,
+                key_start as f32 + stretch * xmargin,
                 stretch * (lsn_max as f32 - (lsn_end as f32 - ymargin - lsn_offset)),
                 key_diff as f32 - stretch * 2.0 * xmargin,
                 stretch * (lsn_diff - 2.0 * ymargin)
@@ -252,29 +151,8 @@ pub fn main() -> Result<()> {
             .fill(fill)
             .stroke(Stroke::Color(rgb(0, 0, 0), 0.1))
             .border_radius(0.4)
-            .comment(filename)
         );
     }
-
-    for (lsn, kind) in lines {
-        let lsn_start = *lsn_map.get(&lsn).unwrap();
-        let lsn_end = lsn_start;
-        let stretch = 2.0;
-        let lsn_diff = 0.3;
-        let lsn_offset = -lsn_diff / 2.0;
-        let ymargin = 0.05;
-        println!(
-            "{}",
-            rectangle(
-                0.0f32 + stretch * xmargin,
-                stretch * (lsn_map.len() as f32 - (lsn_end as f32 - ymargin - lsn_offset)),
-                (key_map.len() + 10) as f32,
-                stretch * (lsn_diff - 2.0 * ymargin)
-            )
-            .fill(kind)
-        );
-    }
-
     println!("{}", EndSvg);
 
     eprintln!("num_images: {}", num_images);

pageserver/ctl/src/index_part.rs

@@ -2,8 +2,8 @@ use std::collections::HashMap;
 
 use anyhow::Context;
 use camino::Utf8PathBuf;
-use pageserver::tenant::remote_timeline_client::index::LayerFileMetadata;
-use pageserver::tenant::storage_layer::LayerName;
+use pageserver::tenant::remote_timeline_client::index::IndexLayerMetadata;
+use pageserver::tenant::storage_layer::LayerFileName;
 use pageserver::tenant::{metadata::TimelineMetadata, IndexPart};
 use utils::lsn::Lsn;
 
@@ -19,7 +19,7 @@ pub(crate) async fn main(cmd: &IndexPartCmd) -> anyhow::Result<()> {
             let des: IndexPart = IndexPart::from_s3_bytes(&bytes).context("deserialize")?;
             #[derive(serde::Serialize)]
             struct Output<'a> {
-                layer_metadata: &'a HashMap<LayerName, LayerFileMetadata>,
+                layer_metadata: &'a HashMap<LayerFileName, IndexLayerMetadata>,
                 disk_consistent_lsn: Lsn,
                 timeline_metadata: &'a TimelineMetadata,
             }

pageserver/ctl/src/layer_map_analyzer.rs

@@ -100,7 +100,7 @@ pub(crate) fn parse_filename(name: &str) -> Option<LayerFile> {
 
 // Finds the max_holes largest holes, ignoring any that are smaller than MIN_HOLE_LENGTH"
 async fn get_holes(path: &Utf8Path, max_holes: usize, ctx: &RequestContext) -> Result<Vec<Hole>> {
-    let file = VirtualFile::open(path, ctx).await?;
+    let file = VirtualFile::open(path).await?;
     let file_id = page_cache::next_file_id();
     let block_reader = FileBlockReader::new(&file, file_id);
     let summary_blk = block_reader.read_blk(0, ctx).await?;

pageserver/ctl/src/layers.rs

@@ -61,7 +61,7 @@ async fn read_delta_file(path: impl AsRef<Path>, ctx: &RequestContext) -> Result
     let path = Utf8Path::from_path(path.as_ref()).expect("non-Unicode path");
     virtual_file::init(10, virtual_file::api::IoEngineKind::StdFs);
     page_cache::init(100);
-    let file = VirtualFile::open(path, ctx).await?;
+    let file = VirtualFile::open(path).await?;
     let file_id = page_cache::next_file_id();
     let block_reader = FileBlockReader::new(&file, file_id);
     let summary_blk = block_reader.read_blk(0, ctx).await?;

pageserver/ctl/src/main.rs

@@ -219,7 +219,6 @@ fn handle_metadata(
     let mut meta = TimelineMetadata::from_bytes(&metadata_bytes)?;
     println!("Current metadata:\n{meta:?}");
     let mut update_meta = false;
-    // TODO: simplify this part
     if let Some(disk_consistent_lsn) = disk_consistent_lsn {
         meta = TimelineMetadata::new(
             *disk_consistent_lsn,

pageserver/pagebench/src/cmd/aux_files.rs

@@ -1,98 +0,0 @@
-use pageserver_api::models::{AuxFilePolicy, TenantConfig, TenantConfigRequest};
-use pageserver_api::shard::TenantShardId;
-use utils::id::TenantTimelineId;
-use utils::lsn::Lsn;
-
-use std::collections::HashMap;
-use std::sync::Arc;
-
-/// Ingest aux files into the pageserver.
-#[derive(clap::Parser)]
-pub(crate) struct Args {
-    #[clap(long, default_value = "http://localhost:9898")]
-    mgmt_api_endpoint: String,
-    #[clap(long, default_value = "postgres://postgres@localhost:64000")]
-    page_service_connstring: String,
-    #[clap(long)]
-    pageserver_jwt: Option<String>,
-
-    targets: Option<Vec<TenantTimelineId>>,
-}
-
-pub(crate) fn main(args: Args) -> anyhow::Result<()> {
-    let rt = tokio::runtime::Builder::new_multi_thread()
-        .enable_all()
-        .build()
-        .unwrap();
-
-    let main_task = rt.spawn(main_impl(args));
-    rt.block_on(main_task).unwrap()
-}
-
-async fn main_impl(args: Args) -> anyhow::Result<()> {
-    let args: &'static Args = Box::leak(Box::new(args));
-
-    let mgmt_api_client = Arc::new(pageserver_client::mgmt_api::Client::new(
-        args.mgmt_api_endpoint.clone(),
-        args.pageserver_jwt.as_deref(),
-    ));
-
-    // discover targets
-    let timelines: Vec<TenantTimelineId> = crate::util::cli::targets::discover(
-        &mgmt_api_client,
-        crate::util::cli::targets::Spec {
-            limit_to_first_n_targets: None,
-            targets: {
-                if let Some(targets) = &args.targets {
-                    if targets.len() != 1 {
-                        anyhow::bail!("must specify exactly one target");
-                    }
-                    Some(targets.clone())
-                } else {
-                    None
-                }
-            },
-        },
-    )
-    .await?;
-
-    let timeline = timelines[0];
-    let tenant_shard_id = TenantShardId::unsharded(timeline.tenant_id);
-    let timeline_id = timeline.timeline_id;
-
-    println!("operating on timeline {}", timeline);
-
-    mgmt_api_client
-        .tenant_config(&TenantConfigRequest {
-            tenant_id: timeline.tenant_id,
-            config: TenantConfig {
-                switch_aux_file_policy: Some(AuxFilePolicy::V2),
-                ..Default::default()
-            },
-        })
-        .await?;
-
-    for batch in 0..100 {
-        let items = (0..100)
-            .map(|id| {
-                (
-                    format!("pg_logical/mappings/{:03}.{:03}", batch, id),
-                    format!("{:08}", id),
-                )
-            })
-            .collect::<HashMap<_, _>>();
-        let file_cnt = items.len();
-        mgmt_api_client
-            .ingest_aux_files(tenant_shard_id, timeline_id, items)
-            .await?;
-        println!("ingested {file_cnt} files");
-    }
-
-    let files = mgmt_api_client
-        .list_aux_files(tenant_shard_id, timeline_id, Lsn(Lsn::MAX.0 - 1))
-        .await?;
-
-    println!("{} files found", files.len());
-
-    anyhow::Ok(())
-}

pageserver/pagebench/src/cmd/getpage_latest_lsn.rs

@@ -312,12 +312,8 @@ async fn main_impl(
                     let (rel_tag, block_no) =
                         key_to_rel_block(key).expect("we filter non-rel-block keys out above");
                     PagestreamGetPageRequest {
-                        request_lsn: if rng.gen_bool(args.req_latest_probability) {
-                            Lsn::MAX
-                        } else {
-                            r.timeline_lsn
-                        },
-                        not_modified_since: r.timeline_lsn,
+                        latest: rng.gen_bool(args.req_latest_probability),
+                        lsn: r.timeline_lsn,
                         rel: rel_tag,
                         blkno: block_no,
                     }

pageserver/pagebench/src/cmd/ondemand_download_churn.rs

@@ -2,11 +2,9 @@ use pageserver_api::{models::HistoricLayerInfo, shard::TenantShardId};
 
 use pageserver_client::mgmt_api;
 use rand::seq::SliceRandom;
-use tokio_util::sync::CancellationToken;
 use tracing::{debug, info};
 use utils::id::{TenantTimelineId, TimelineId};
 
-use std::{f64, sync::Arc};
 use tokio::{
     sync::{mpsc, OwnedSemaphorePermit},
     task::JoinSet,
@@ -14,7 +12,10 @@ use tokio::{
 
 use std::{
     num::NonZeroUsize,
-    sync::atomic::{AtomicU64, Ordering},
+    sync::{
+        atomic::{AtomicU64, Ordering},
+        Arc,
+    },
     time::{Duration, Instant},
 };
 
@@ -50,31 +51,19 @@ pub(crate) fn main(args: Args) -> anyhow::Result<()> {
     Ok(())
 }
 
-#[derive(serde::Serialize)]
-struct Output {
-    downloads_count: u64,
-    downloads_bytes: u64,
-    evictions_count: u64,
-    timeline_restarts: u64,
-    #[serde(with = "humantime_serde")]
-    runtime: Duration,
-}
-
 #[derive(Debug, Default)]
 struct LiveStats {
-    evictions_count: AtomicU64,
-    downloads_count: AtomicU64,
-    downloads_bytes: AtomicU64,
+    evictions: AtomicU64,
+    downloads: AtomicU64,
     timeline_restarts: AtomicU64,
 }
 
 impl LiveStats {
     fn eviction_done(&self) {
-        self.evictions_count.fetch_add(1, Ordering::Relaxed);
+        self.evictions.fetch_add(1, Ordering::Relaxed);
     }
-    fn download_done(&self, size: u64) {
-        self.downloads_count.fetch_add(1, Ordering::Relaxed);
-        self.downloads_bytes.fetch_add(size, Ordering::Relaxed);
+    fn download_done(&self) {
+        self.downloads.fetch_add(1, Ordering::Relaxed);
     }
     fn timeline_restart_done(&self) {
         self.timeline_restarts.fetch_add(1, Ordering::Relaxed);
@@ -103,49 +92,28 @@ async fn main_impl(args: Args) -> anyhow::Result<()> {
     )
     .await?;
 
-    let token = CancellationToken::new();
     let mut tasks = JoinSet::new();
 
-    let periodic_stats = Arc::new(LiveStats::default());
-    let total_stats = Arc::new(LiveStats::default());
-
-    let start = Instant::now();
+    let live_stats = Arc::new(LiveStats::default());
     tasks.spawn({
-        let periodic_stats = Arc::clone(&periodic_stats);
-        let total_stats = Arc::clone(&total_stats);
-        let cloned_token = token.clone();
+        let live_stats = Arc::clone(&live_stats);
         async move {
             let mut last_at = Instant::now();
             loop {
-                if cloned_token.is_cancelled() {
-                    return;
-                }
                 tokio::time::sleep_until((last_at + Duration::from_secs(1)).into()).await;
                 let now = Instant::now();
                 let delta: Duration = now - last_at;
                 last_at = now;
 
                 let LiveStats {
-                    evictions_count,
-                    downloads_count,
-                    downloads_bytes,
+                    evictions,
+                    downloads,
                     timeline_restarts,
-                } = &*periodic_stats;
-                let evictions_count = evictions_count.swap(0, Ordering::Relaxed);
-                let downloads_count = downloads_count.swap(0, Ordering::Relaxed);
-                let downloads_bytes = downloads_bytes.swap(0, Ordering::Relaxed);
+                } = &*live_stats;
+                let evictions = evictions.swap(0, Ordering::Relaxed) as f64 / delta.as_secs_f64();
+                let downloads = downloads.swap(0, Ordering::Relaxed) as f64 / delta.as_secs_f64();
                 let timeline_restarts = timeline_restarts.swap(0, Ordering::Relaxed);
-
-                total_stats.evictions_count.fetch_add(evictions_count, Ordering::Relaxed);
-                total_stats.downloads_count.fetch_add(downloads_count, Ordering::Relaxed);
-                total_stats.downloads_bytes.fetch_add(downloads_bytes, Ordering::Relaxed);
-                total_stats.timeline_restarts.fetch_add(timeline_restarts, Ordering::Relaxed);
-
-                let evictions_per_s = evictions_count as f64 / delta.as_secs_f64();
-                let downloads_per_s = downloads_count as f64 / delta.as_secs_f64();
-                let downloads_mibs_per_s = downloads_bytes as f64 / delta.as_secs_f64() / ((1 << 20) as f64);
-
-                info!("evictions={evictions_per_s:.2}/s downloads={downloads_per_s:.2}/s download_bytes={downloads_mibs_per_s:.2}MiB/s timeline_restarts={timeline_restarts}");
+                info!("evictions={evictions:.2}/s downloads={downloads:.2}/s timeline_restarts={timeline_restarts}");
             }
         }
     });
@@ -156,42 +124,14 @@ async fn main_impl(args: Args) -> anyhow::Result<()> {
                 args,
                 Arc::clone(&mgmt_api_client),
                 tl,
-                Arc::clone(&periodic_stats),
-                token.clone(),
+                Arc::clone(&live_stats),
             ));
         }
     }
-    if let Some(runtime) = args.runtime {
-        tokio::spawn(async move {
-            tokio::time::sleep(runtime.into()).await;
-            token.cancel();
-        });
-    }
 
     while let Some(res) = tasks.join_next().await {
         res.unwrap();
     }
-    let end = Instant::now();
-    let duration: Duration = end - start;
-
-    let output = {
-        let LiveStats {
-            evictions_count,
-            downloads_count,
-            downloads_bytes,
-            timeline_restarts,
-        } = &*total_stats;
-        Output {
-            downloads_count: downloads_count.load(Ordering::Relaxed),
-            downloads_bytes: downloads_bytes.load(Ordering::Relaxed),
-            evictions_count: evictions_count.load(Ordering::Relaxed),
-            timeline_restarts: timeline_restarts.load(Ordering::Relaxed),
-            runtime: duration,
-        }
-    };
-    let output = serde_json::to_string_pretty(&output).unwrap();
-    println!("{output}");
-
     Ok(())
 }
 
@@ -200,7 +140,6 @@ async fn timeline_actor(
     mgmt_api_client: Arc<pageserver_client::mgmt_api::Client>,
     timeline: TenantTimelineId,
     live_stats: Arc<LiveStats>,
-    token: CancellationToken,
 ) {
     // TODO: support sharding
     let tenant_shard_id = TenantShardId::unsharded(timeline.tenant_id);
@@ -210,7 +149,7 @@ async fn timeline_actor(
         layers: Vec<mpsc::Sender<OwnedSemaphorePermit>>,
         concurrency: Arc<tokio::sync::Semaphore>,
     }
-    while !token.is_cancelled() {
+    loop {
         debug!("restarting timeline");
         let layer_map_info = mgmt_api_client
             .layer_map_info(tenant_shard_id, timeline.timeline_id)
@@ -246,7 +185,7 @@ async fn timeline_actor(
 
         live_stats.timeline_restart_done();
 
-        while !token.is_cancelled() {
+        loop {
             assert!(!timeline.joinset.is_empty());
             if let Some(res) = timeline.joinset.try_join_next() {
                 debug!(?res, "a layer actor exited, should not happen");
@@ -316,7 +255,7 @@ async fn layer_actor(
                     .layer_ondemand_download(tenant_shard_id, timeline_id, layer.layer_file_name())
                     .await
                     .unwrap();
-                live_stats.download_done(layer.layer_file_size());
+                live_stats.download_done();
                 did_it
             }
         };

pageserver/pagebench/src/main.rs

@@ -14,7 +14,6 @@ mod util {
 
 /// The pagebench CLI sub-commands, dispatched in [`main`] below.
 mod cmd {
-    pub(super) mod aux_files;
     pub(super) mod basebackup;
     pub(super) mod getpage_latest_lsn;
     pub(super) mod ondemand_download_churn;
@@ -28,7 +27,6 @@ enum Args {
     GetPageLatestLsn(cmd::getpage_latest_lsn::Args),
     TriggerInitialSizeCalculation(cmd::trigger_initial_size_calculation::Args),
     OndemandDownloadChurn(cmd::ondemand_download_churn::Args),
-    AuxFiles(cmd::aux_files::Args),
 }
 
 fn main() {
@@ -48,7 +46,6 @@ fn main() {
             cmd::trigger_initial_size_calculation::main(args)
         }
         Args::OndemandDownloadChurn(args) => cmd::ondemand_download_churn::main(args),
-        Args::AuxFiles(args) => cmd::aux_files::main(args),
     }
     .unwrap()
 }

pageserver/src/aux_file.rs

@@ -1,285 +0,0 @@
-use std::sync::Arc;
-
-use ::metrics::IntGauge;
-use bytes::{Buf, BufMut, Bytes};
-use pageserver_api::key::{Key, AUX_KEY_PREFIX, METADATA_KEY_SIZE};
-use tracing::warn;
-
-// BEGIN Copyright (c) 2017 Servo Contributors
-
-/// Const version of FNV hash.
-#[inline]
-#[must_use]
-pub const fn fnv_hash(bytes: &[u8]) -> u128 {
-    const INITIAL_STATE: u128 = 0x6c62272e07bb014262b821756295c58d;
-    const PRIME: u128 = 0x0000000001000000000000000000013B;
-
-    let mut hash = INITIAL_STATE;
-    let mut i = 0;
-    while i < bytes.len() {
-        hash ^= bytes[i] as u128;
-        hash = hash.wrapping_mul(PRIME);
-        i += 1;
-    }
-    hash
-}
-
-// END Copyright (c) 2017 Servo Contributors
-
-/// Create a metadata key from a hash, encoded as [AUX_KEY_PREFIX, 2B directory prefix, least significant 13B of FNV hash].
-fn aux_hash_to_metadata_key(dir_level1: u8, dir_level2: u8, data: &[u8]) -> Key {
-    let mut key: [u8; 16] = [0; METADATA_KEY_SIZE];
-    let hash = fnv_hash(data).to_be_bytes();
-    key[0] = AUX_KEY_PREFIX;
-    key[1] = dir_level1;
-    key[2] = dir_level2;
-    key[3..16].copy_from_slice(&hash[3..16]);
-    Key::from_metadata_key_fixed_size(&key)
-}
-
-const AUX_DIR_PG_LOGICAL: u8 = 0x01;
-const AUX_DIR_PG_REPLSLOT: u8 = 0x02;
-const AUX_DIR_PG_UNKNOWN: u8 = 0xFF;
-
-/// Encode the aux file into a fixed-size key.
-///
-/// The first byte is the AUX key prefix. We use the next 2 bytes of the key for the directory / aux file type.
-/// We have one-to-one mapping for each of the aux file that we support. We hash the remaining part of the path
-/// (usually a single file name, or several components) into 13-byte hash. The way we determine the 2-byte prefix
-/// is roughly based on the first two components of the path, one unique number for one component.
-///
-/// * pg_logical/mappings -> 0x0101
-/// * pg_logical/snapshots -> 0x0102
-/// * pg_logical/replorigin_checkpoint -> 0x0103
-/// * pg_logical/others -> 0x01FF
-/// * pg_replslot/ -> 0x0201
-/// * others -> 0xFFFF
-///
-/// If you add new AUX files to this function, please also add a test case to `test_encoding_portable`.
-/// The new file type must have never been written to the storage before. Otherwise, there could be data
-/// corruptions as the new file belongs to a new prefix but it might have been stored under the `others` prefix.
-pub fn encode_aux_file_key(path: &str) -> Key {
-    if let Some(fname) = path.strip_prefix("pg_logical/mappings/") {
-        aux_hash_to_metadata_key(AUX_DIR_PG_LOGICAL, 0x01, fname.as_bytes())
-    } else if let Some(fname) = path.strip_prefix("pg_logical/snapshots/") {
-        aux_hash_to_metadata_key(AUX_DIR_PG_LOGICAL, 0x02, fname.as_bytes())
-    } else if path == "pg_logical/replorigin_checkpoint" {
-        aux_hash_to_metadata_key(AUX_DIR_PG_LOGICAL, 0x03, b"")
-    } else if let Some(fname) = path.strip_prefix("pg_logical/") {
-        if cfg!(debug_assertions) {
-            warn!(
-                "unsupported pg_logical aux file type: {}, putting to 0x01FF, would affect path scanning",
-                path
-            );
-        }
-        aux_hash_to_metadata_key(AUX_DIR_PG_LOGICAL, 0xFF, fname.as_bytes())
-    } else if let Some(fname) = path.strip_prefix("pg_replslot/") {
-        aux_hash_to_metadata_key(AUX_DIR_PG_REPLSLOT, 0x01, fname.as_bytes())
-    } else {
-        if cfg!(debug_assertions) {
-            warn!(
-                "unsupported aux file type: {}, putting to 0xFFFF, would affect path scanning",
-                path
-            );
-        }
-        aux_hash_to_metadata_key(AUX_DIR_PG_UNKNOWN, 0xFF, path.as_bytes())
-    }
-}
-
-const AUX_FILE_ENCODING_VERSION: u8 = 0x01;
-
-pub fn decode_file_value(val: &[u8]) -> anyhow::Result<Vec<(&str, &[u8])>> {
-    let mut ptr = val;
-    if ptr.is_empty() {
-        // empty value = no files
-        return Ok(Vec::new());
-    }
-    assert_eq!(
-        ptr.get_u8(),
-        AUX_FILE_ENCODING_VERSION,
-        "unsupported aux file value"
-    );
-    let mut files = vec![];
-    while ptr.has_remaining() {
-        let key_len = ptr.get_u32() as usize;
-        let key = &ptr[..key_len];
-        ptr.advance(key_len);
-        let val_len = ptr.get_u32() as usize;
-        let content = &ptr[..val_len];
-        ptr.advance(val_len);
-
-        let path = std::str::from_utf8(key)?;
-        files.push((path, content));
-    }
-    Ok(files)
-}
-
-/// Decode an aux file key-value pair into a list of files. The returned `Bytes` contains reference
-/// to the original value slice. Be cautious about memory consumption.
-pub fn decode_file_value_bytes(val: &Bytes) -> anyhow::Result<Vec<(String, Bytes)>> {
-    let mut ptr = val.clone();
-    if ptr.is_empty() {
-        // empty value = no files
-        return Ok(Vec::new());
-    }
-    assert_eq!(
-        ptr.get_u8(),
-        AUX_FILE_ENCODING_VERSION,
-        "unsupported aux file value"
-    );
-    let mut files = vec![];
-    while ptr.has_remaining() {
-        let key_len = ptr.get_u32() as usize;
-        let key = ptr.slice(..key_len);
-        ptr.advance(key_len);
-        let val_len = ptr.get_u32() as usize;
-        let content = ptr.slice(..val_len);
-        ptr.advance(val_len);
-
-        let path = std::str::from_utf8(&key)?.to_string();
-        files.push((path, content));
-    }
-    Ok(files)
-}
-
-pub fn encode_file_value(files: &[(&str, &[u8])]) -> anyhow::Result<Vec<u8>> {
-    if files.is_empty() {
-        // no files = empty value
-        return Ok(Vec::new());
-    }
-    let mut encoded = vec![];
-    encoded.put_u8(AUX_FILE_ENCODING_VERSION);
-    for (path, content) in files {
-        if path.len() > u32::MAX as usize {
-            anyhow::bail!("{} exceeds path size limit", path);
-        }
-        encoded.put_u32(path.len() as u32);
-        encoded.put_slice(path.as_bytes());
-        if content.len() > u32::MAX as usize {
-            anyhow::bail!("{} exceeds content size limit", path);
-        }
-        encoded.put_u32(content.len() as u32);
-        encoded.put_slice(content);
-    }
-    Ok(encoded)
-}
-
-/// An estimation of the size of aux files.
-pub struct AuxFileSizeEstimator {
-    aux_file_size_gauge: IntGauge,
-    size: Arc<std::sync::Mutex<Option<isize>>>,
-}
-
-impl AuxFileSizeEstimator {
-    pub fn new(aux_file_size_gauge: IntGauge) -> Self {
-        Self {
-            aux_file_size_gauge,
-            size: Arc::new(std::sync::Mutex::new(None)),
-        }
-    }
-
-    pub fn on_base_backup(&self, new_size: usize) {
-        let mut guard = self.size.lock().unwrap();
-        *guard = Some(new_size as isize);
-        self.report(new_size as isize);
-    }
-
-    pub fn on_add(&self, file_size: usize) {
-        let mut guard = self.size.lock().unwrap();
-        if let Some(size) = &mut *guard {
-            *size += file_size as isize;
-            self.report(*size);
-        }
-    }
-
-    pub fn on_remove(&self, file_size: usize) {
-        let mut guard = self.size.lock().unwrap();
-        if let Some(size) = &mut *guard {
-            *size -= file_size as isize;
-            self.report(*size);
-        }
-    }
-
-    pub fn on_update(&self, old_size: usize, new_size: usize) {
-        let mut guard = self.size.lock().unwrap();
-        if let Some(size) = &mut *guard {
-            *size += new_size as isize - old_size as isize;
-            self.report(*size);
-        }
-    }
-
-    pub fn report(&self, size: isize) {
-        self.aux_file_size_gauge.set(size as i64);
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_hash_portable() {
-        // AUX file encoding requires the hash to be portable across all platforms. This test case checks
-        // if the algorithm produces the same hash across different environments.
-
-        assert_eq!(
-            265160408618497461376862998434862070044,
-            super::fnv_hash("test1".as_bytes())
-        );
-        assert_eq!(
-            295486155126299629456360817749600553988,
-            super::fnv_hash("test/test2".as_bytes())
-        );
-        assert_eq!(
-            144066263297769815596495629667062367629,
-            super::fnv_hash("".as_bytes())
-        );
-    }
-
-    #[test]
-    fn test_encoding_portable() {
-        // To correct retrieve AUX files, the generated keys for the same file must be the same for all versions
-        // of the page server.
-        assert_eq!(
-            "62000001017F8B83D94F7081693471ABF91C",
-            encode_aux_file_key("pg_logical/mappings/test1").to_string(),
-        );
-        assert_eq!(
-            "62000001027F8E83D94F7081693471ABFCCD",
-            encode_aux_file_key("pg_logical/snapshots/test2").to_string(),
-        );
-        assert_eq!(
-            "62000001032E07BB014262B821756295C58D",
-            encode_aux_file_key("pg_logical/replorigin_checkpoint").to_string(),
-        );
-        assert_eq!(
-            "62000001FF4F38E1C74754E7D03C1A660178",
-            encode_aux_file_key("pg_logical/unsupported").to_string(),
-        );
-        assert_eq!(
-            "62000002017F8D83D94F7081693471ABFB92",
-            encode_aux_file_key("pg_replslot/test3").to_string()
-        );
-        assert_eq!(
-            "620000FFFF2B6ECC8AEF93F643DC44F15E03",
-            encode_aux_file_key("other_file_not_supported").to_string(),
-        );
-    }
-
-    #[test]
-    fn test_value_encoding() {
-        let files = vec![
-            ("pg_logical/1.file", "1111".as_bytes()),
-            ("pg_logical/2.file", "2222".as_bytes()),
-        ];
-        assert_eq!(
-            files,
-            decode_file_value(&encode_file_value(&files).unwrap()).unwrap()
-        );
-        let files = vec![];
-        assert_eq!(
-            files,
-            decode_file_value(&encode_file_value(&files).unwrap()).unwrap()
-        );
-    }
-}

pageserver/src/basebackup.rs

@@ -10,7 +10,7 @@
 //! This module is responsible for creation of such tarball
 //! from data stored in object storage.
 //!
-use anyhow::{anyhow, Context};
+use anyhow::{anyhow, bail, ensure, Context};
 use bytes::{BufMut, Bytes, BytesMut};
 use fail::fail_point;
 use pageserver_api::key::{key_to_slru_block, Key};
@@ -38,14 +38,6 @@ use postgres_ffi::PG_TLI;
 use postgres_ffi::{BLCKSZ, RELSEG_SIZE, WAL_SEGMENT_SIZE};
 use utils::lsn::Lsn;
 
-#[derive(Debug, thiserror::Error)]
-pub enum BasebackupError {
-    #[error("basebackup pageserver error {0:#}")]
-    Server(#[from] anyhow::Error),
-    #[error("basebackup client error {0:#}")]
-    Client(#[source] io::Error),
-}
-
 /// Create basebackup with non-rel data in it.
 /// Only include relational data if 'full_backup' is true.
 ///
@@ -61,7 +53,7 @@ pub async fn send_basebackup_tarball<'a, W>(
     prev_lsn: Option<Lsn>,
     full_backup: bool,
     ctx: &'a RequestContext,
-) -> Result<(), BasebackupError>
+) -> anyhow::Result<()>
 where
     W: AsyncWrite + Send + Sync + Unpin,
 {
@@ -100,10 +92,8 @@ where
 
     // Consolidate the derived and the provided prev_lsn values
     let prev_lsn = if let Some(provided_prev_lsn) = prev_lsn {
-        if backup_prev != Lsn(0) && backup_prev != provided_prev_lsn {
-            return Err(BasebackupError::Server(anyhow!(
-                "backup_prev {backup_prev} != provided_prev_lsn {provided_prev_lsn}"
-            )));
+        if backup_prev != Lsn(0) {
+            ensure!(backup_prev == provided_prev_lsn);
         }
         provided_prev_lsn
     } else {
@@ -169,26 +159,15 @@ where
         }
     }
 
-    async fn add_block(&mut self, key: &Key, block: Bytes) -> Result<(), BasebackupError> {
+    async fn add_block(&mut self, key: &Key, block: Bytes) -> anyhow::Result<()> {
         let (kind, segno, _) = key_to_slru_block(*key)?;
 
         match kind {
             SlruKind::Clog => {
-                if !(block.len() == BLCKSZ as usize || block.len() == BLCKSZ as usize + 8) {
-                    return Err(BasebackupError::Server(anyhow!(
-                        "invalid SlruKind::Clog record: block.len()={}",
-                        block.len()
-                    )));
-                }
+                ensure!(block.len() == BLCKSZ as usize || block.len() == BLCKSZ as usize + 8);
             }
             SlruKind::MultiXactMembers | SlruKind::MultiXactOffsets => {
-                if block.len() != BLCKSZ as usize {
-                    return Err(BasebackupError::Server(anyhow!(
-                        "invalid {:?} record: block.len()={}",
-                        kind,
-                        block.len()
-                    )));
-                }
+                ensure!(block.len() == BLCKSZ as usize);
             }
         }
 
@@ -215,15 +194,12 @@ where
         Ok(())
     }
 
-    async fn flush(&mut self) -> Result<(), BasebackupError> {
+    async fn flush(&mut self) -> anyhow::Result<()> {
         let nblocks = self.buf.len() / BLCKSZ as usize;
         let (kind, segno) = self.current_segment.take().unwrap();
         let segname = format!("{}/{:>04X}", kind.to_str(), segno);
         let header = new_tar_header(&segname, self.buf.len() as u64)?;
-        self.ar
-            .append(&header, self.buf.as_slice())
-            .await
-            .map_err(BasebackupError::Client)?;
+        self.ar.append(&header, self.buf.as_slice()).await?;
 
         self.total_blocks += nblocks;
         debug!("Added to basebackup slru {} relsize {}", segname, nblocks);
@@ -233,7 +209,7 @@ where
         Ok(())
     }
 
-    async fn finish(mut self) -> Result<(), BasebackupError> {
+    async fn finish(mut self) -> anyhow::Result<()> {
         let res = if self.current_segment.is_none() || self.buf.is_empty() {
             Ok(())
         } else {
@@ -250,7 +226,7 @@ impl<'a, W> Basebackup<'a, W>
 where
     W: AsyncWrite + Send + Sync + Unpin,
 {
-    async fn send_tarball(mut self) -> Result<(), BasebackupError> {
+    async fn send_tarball(mut self) -> anyhow::Result<()> {
         // TODO include checksum
 
         let lazy_slru_download = self.timeline.get_lazy_slru_download() && !self.full_backup;
@@ -286,25 +262,16 @@ where
             let slru_partitions = self
                 .timeline
                 .get_slru_keyspace(Version::Lsn(self.lsn), self.ctx)
-                .await
-                .map_err(|e| BasebackupError::Server(e.into()))?
-                .partition(
-                    self.timeline.get_shard_identity(),
-                    Timeline::MAX_GET_VECTORED_KEYS * BLCKSZ as u64,
-                );
+                .await?
+                .partition(Timeline::MAX_GET_VECTORED_KEYS * BLCKSZ as u64);
 
             let mut slru_builder = SlruSegmentsBuilder::new(&mut self.ar);
 
             for part in slru_partitions.parts {
-                let blocks = self
-                    .timeline
-                    .get_vectored(part, self.lsn, self.ctx)
-                    .await
-                    .map_err(|e| BasebackupError::Server(e.into()))?;
+                let blocks = self.timeline.get_vectored(part, self.lsn, self.ctx).await?;
 
                 for (key, block) in blocks {
-                    let block = block.map_err(|e| BasebackupError::Server(e.into()))?;
-                    slru_builder.add_block(&key, block).await?;
+                    slru_builder.add_block(&key, block?).await?;
                 }
             }
             slru_builder.finish().await?;
@@ -312,11 +279,8 @@ where
 
         let mut min_restart_lsn: Lsn = Lsn::MAX;
         // Create tablespace directories
-        for ((spcnode, dbnode), has_relmap_file) in self
-            .timeline
-            .list_dbdirs(self.lsn, self.ctx)
-            .await
-            .map_err(|e| BasebackupError::Server(e.into()))?
+        for ((spcnode, dbnode), has_relmap_file) in
+            self.timeline.list_dbdirs(self.lsn, self.ctx).await?
         {
             self.add_dbdir(spcnode, dbnode, has_relmap_file).await?;
 
@@ -325,8 +289,7 @@ where
             let rels = self
                 .timeline
                 .list_rels(spcnode, dbnode, Version::Lsn(self.lsn), self.ctx)
-                .await
-                .map_err(|e| BasebackupError::Server(e.into()))?;
+                .await?;
             for &rel in rels.iter() {
                 // Send init fork as main fork to provide well formed empty
                 // contents of UNLOGGED relations. Postgres copies it in
@@ -349,12 +312,7 @@ where
                 }
             }
 
-            for (path, content) in self
-                .timeline
-                .list_aux_files(self.lsn, self.ctx)
-                .await
-                .map_err(|e| BasebackupError::Server(e.into()))?
-            {
+            for (path, content) in self.timeline.list_aux_files(self.lsn, self.ctx).await? {
                 if path.starts_with("pg_replslot") {
                     let offs = pg_constants::REPL_SLOT_ON_DISK_OFFSETOF_RESTART_LSN;
                     let restart_lsn = Lsn(u64::from_le_bytes(
@@ -385,41 +343,34 @@ where
         for xid in self
             .timeline
             .list_twophase_files(self.lsn, self.ctx)
-            .await
-            .map_err(|e| BasebackupError::Server(e.into()))?
+            .await?
         {
             self.add_twophase_file(xid).await?;
         }
 
         fail_point!("basebackup-before-control-file", |_| {
-            Err(BasebackupError::Server(anyhow!(
-                "failpoint basebackup-before-control-file"
-            )))
+            bail!("failpoint basebackup-before-control-file")
         });
 
         // Generate pg_control and bootstrap WAL segment.
         self.add_pgcontrol_file().await?;
-        self.ar.finish().await.map_err(BasebackupError::Client)?;
+        self.ar.finish().await?;
         debug!("all tarred up!");
         Ok(())
     }
 
     /// Add contents of relfilenode `src`, naming it as `dst`.
-    async fn add_rel(&mut self, src: RelTag, dst: RelTag) -> Result<(), BasebackupError> {
+    async fn add_rel(&mut self, src: RelTag, dst: RelTag) -> anyhow::Result<()> {
         let nblocks = self
             .timeline
-            .get_rel_size(src, Version::Lsn(self.lsn), self.ctx)
-            .await
-            .map_err(|e| BasebackupError::Server(e.into()))?;
+            .get_rel_size(src, Version::Lsn(self.lsn), false, self.ctx)
+            .await?;
 
         // If the relation is empty, create an empty file
         if nblocks == 0 {
             let file_name = dst.to_segfile_name(0);
             let header = new_tar_header(&file_name, 0)?;
-            self.ar
-                .append(&header, &mut io::empty())
-                .await
-                .map_err(BasebackupError::Client)?;
+            self.ar.append(&header, &mut io::empty()).await?;
             return Ok(());
         }
 
@@ -433,18 +384,14 @@ where
             for blknum in startblk..endblk {
                 let img = self
                     .timeline
-                    .get_rel_page_at_lsn(src, blknum, Version::Lsn(self.lsn), self.ctx)
-                    .await
-                    .map_err(|e| BasebackupError::Server(e.into()))?;
+                    .get_rel_page_at_lsn(src, blknum, Version::Lsn(self.lsn), false, self.ctx)
+                    .await?;
                 segment_data.extend_from_slice(&img[..]);
             }
 
             let file_name = dst.to_segfile_name(seg as u32);
             let header = new_tar_header(&file_name, segment_data.len() as u64)?;
-            self.ar
-                .append(&header, segment_data.as_slice())
-                .await
-                .map_err(BasebackupError::Client)?;
+            self.ar.append(&header, segment_data.as_slice()).await?;
 
             seg += 1;
             startblk = endblk;
@@ -464,22 +411,20 @@ where
         spcnode: u32,
         dbnode: u32,
         has_relmap_file: bool,
-    ) -> Result<(), BasebackupError> {
+    ) -> anyhow::Result<()> {
         let relmap_img = if has_relmap_file {
             let img = self
                 .timeline
                 .get_relmap_file(spcnode, dbnode, Version::Lsn(self.lsn), self.ctx)
-                .await
-                .map_err(|e| BasebackupError::Server(e.into()))?;
+                .await?;
 
-            if img.len()
-                != dispatch_pgversion!(self.timeline.pg_version, pgv::bindings::SIZEOF_RELMAPFILE)
-            {
-                return Err(BasebackupError::Server(anyhow!(
-                    "img.len() != SIZE_OF_RELMAPFILE, img.len()={}",
-                    img.len(),
-                )));
-            }
+            ensure!(
+                img.len()
+                    == dispatch_pgversion!(
+                        self.timeline.pg_version,
+                        pgv::bindings::SIZEOF_RELMAPFILE
+                    )
+            );
 
             Some(img)
         } else {
@@ -492,20 +437,14 @@ where
                 ver => format!("{ver}\x0A"),
             };
             let header = new_tar_header("PG_VERSION", pg_version_str.len() as u64)?;
-            self.ar
-                .append(&header, pg_version_str.as_bytes())
-                .await
-                .map_err(BasebackupError::Client)?;
+            self.ar.append(&header, pg_version_str.as_bytes()).await?;
 
             info!("timeline.pg_version {}", self.timeline.pg_version);
 
             if let Some(img) = relmap_img {
                 // filenode map for global tablespace
                 let header = new_tar_header("global/pg_filenode.map", img.len() as u64)?;
-                self.ar
-                    .append(&header, &img[..])
-                    .await
-                    .map_err(BasebackupError::Client)?;
+                self.ar.append(&header, &img[..]).await?;
             } else {
                 warn!("global/pg_filenode.map is missing");
             }
@@ -524,26 +463,18 @@ where
                 && self
                     .timeline
                     .list_rels(spcnode, dbnode, Version::Lsn(self.lsn), self.ctx)
-                    .await
-                    .map_err(|e| BasebackupError::Server(e.into()))?
+                    .await?
                     .is_empty()
             {
                 return Ok(());
             }
             // User defined tablespaces are not supported
-            if spcnode != DEFAULTTABLESPACE_OID {
-                return Err(BasebackupError::Server(anyhow!(
-                    "spcnode != DEFAULTTABLESPACE_OID, spcnode={spcnode}"
-                )));
-            }
+            ensure!(spcnode == DEFAULTTABLESPACE_OID);
 
             // Append dir path for each database
             let path = format!("base/{}", dbnode);
             let header = new_tar_header_dir(&path)?;
-            self.ar
-                .append(&header, &mut io::empty())
-                .await
-                .map_err(BasebackupError::Client)?;
+            self.ar.append(&header, &mut io::empty()).await?;
 
             if let Some(img) = relmap_img {
                 let dst_path = format!("base/{}/PG_VERSION", dbnode);
@@ -553,17 +484,11 @@ where
                     ver => format!("{ver}\x0A"),
                 };
                 let header = new_tar_header(&dst_path, pg_version_str.len() as u64)?;
-                self.ar
-                    .append(&header, pg_version_str.as_bytes())
-                    .await
-                    .map_err(BasebackupError::Client)?;
+                self.ar.append(&header, pg_version_str.as_bytes()).await?;
 
                 let relmap_path = format!("base/{}/pg_filenode.map", dbnode);
                 let header = new_tar_header(&relmap_path, img.len() as u64)?;
-                self.ar
-                    .append(&header, &img[..])
-                    .await
-                    .map_err(BasebackupError::Client)?;
+                self.ar.append(&header, &img[..]).await?;
             }
         };
         Ok(())
@@ -572,12 +497,11 @@ where
     //
     // Extract twophase state files
     //
-    async fn add_twophase_file(&mut self, xid: TransactionId) -> Result<(), BasebackupError> {
+    async fn add_twophase_file(&mut self, xid: TransactionId) -> anyhow::Result<()> {
         let img = self
             .timeline
             .get_twophase_file(xid, self.lsn, self.ctx)
-            .await
-            .map_err(|e| BasebackupError::Server(e.into()))?;
+            .await?;
 
         let mut buf = BytesMut::new();
         buf.extend_from_slice(&img[..]);
@@ -585,10 +509,7 @@ where
         buf.put_u32_le(crc);
         let path = format!("pg_twophase/{:>08X}", xid);
         let header = new_tar_header(&path, buf.len() as u64)?;
-        self.ar
-            .append(&header, &buf[..])
-            .await
-            .map_err(BasebackupError::Client)?;
+        self.ar.append(&header, &buf[..]).await?;
 
         Ok(())
     }
@@ -597,28 +518,24 @@ where
     // Add generated pg_control file and bootstrap WAL segment.
     // Also send zenith.signal file with extra bootstrap data.
     //
-    async fn add_pgcontrol_file(&mut self) -> Result<(), BasebackupError> {
+    async fn add_pgcontrol_file(&mut self) -> anyhow::Result<()> {
         // add zenith.signal file
         let mut zenith_signal = String::new();
         if self.prev_record_lsn == Lsn(0) {
-            if self.timeline.is_ancestor_lsn(self.lsn) {
-                write!(zenith_signal, "PREV LSN: none")
-                    .map_err(|e| BasebackupError::Server(e.into()))?;
+            if self.lsn == self.timeline.get_ancestor_lsn() {
+                write!(zenith_signal, "PREV LSN: none")?;
             } else {
-                write!(zenith_signal, "PREV LSN: invalid")
-                    .map_err(|e| BasebackupError::Server(e.into()))?;
+                write!(zenith_signal, "PREV LSN: invalid")?;
             }
         } else {
-            write!(zenith_signal, "PREV LSN: {}", self.prev_record_lsn)
-                .map_err(|e| BasebackupError::Server(e.into()))?;
+            write!(zenith_signal, "PREV LSN: {}", self.prev_record_lsn)?;
         }
         self.ar
             .append(
                 &new_tar_header("zenith.signal", zenith_signal.len() as u64)?,
                 zenith_signal.as_bytes(),
             )
-            .await
-            .map_err(BasebackupError::Client)?;
+            .await?;
 
         let checkpoint_bytes = self
             .timeline
@@ -640,10 +557,7 @@ where
 
         //send pg_control
         let header = new_tar_header("global/pg_control", pg_control_bytes.len() as u64)?;
-        self.ar
-            .append(&header, &pg_control_bytes[..])
-            .await
-            .map_err(BasebackupError::Client)?;
+        self.ar.append(&header, &pg_control_bytes[..]).await?;
 
         //send wal segment
         let segno = self.lsn.segment_number(WAL_SEGMENT_SIZE);
@@ -658,16 +572,8 @@ where
             self.lsn,
         )
         .map_err(|e| anyhow!(e).context("Failed generating wal segment"))?;
-        if wal_seg.len() != WAL_SEGMENT_SIZE {
-            return Err(BasebackupError::Server(anyhow!(
-                "wal_seg.len() != WAL_SEGMENT_SIZE, wal_seg.len()={}",
-                wal_seg.len()
-            )));
-        }
-        self.ar
-            .append(&header, &wal_seg[..])
-            .await
-            .map_err(BasebackupError::Client)?;
+        ensure!(wal_seg.len() == WAL_SEGMENT_SIZE);
+        self.ar.append(&header, &wal_seg[..]).await?;
         Ok(())
     }
 }

pageserver/src/bin/pageserver.rs

@@ -3,7 +3,6 @@
 //! Main entry point for the Page Server executable.
 
 use std::env::{var, VarError};
-use std::io::Read;
 use std::sync::Arc;
 use std::time::Duration;
 use std::{env, ops::ControlFlow, str::FromStr};
@@ -122,10 +121,8 @@ fn main() -> anyhow::Result<()> {
         &[("node_id", &conf.id.to_string())],
     );
 
-    // after setting up logging, log the effective IO engine choice and read path implementations
+    // after setting up logging, log the effective IO engine choice
     info!(?conf.virtual_file_io_engine, "starting with virtual_file IO engine");
-    info!(?conf.get_impl, "starting with get page implementation");
-    info!(?conf.get_vectored_impl, "starting with vectored get page implementation");
 
     let tenants_path = conf.tenants_path();
     if !tenants_path.exists() {
@@ -152,34 +149,37 @@ fn initialize_config(
     workdir: &Utf8Path,
 ) -> anyhow::Result<ControlFlow<(), &'static PageServerConf>> {
     let init = arg_matches.get_flag("init");
+    let update_config = init || arg_matches.get_flag("update-config");
 
-    let file_contents: Option<toml_edit::Document> = match std::fs::File::open(cfg_file_path) {
-        Ok(mut f) => {
-            if init {
-                anyhow::bail!("config file already exists: {cfg_file_path}");
-            }
-            let md = f.metadata().context("stat config file")?;
-            if md.is_file() {
-                let mut s = String::new();
-                f.read_to_string(&mut s).context("read config file")?;
-                Some(s.parse().context("parse config file toml")?)
-            } else {
-                anyhow::bail!("directory entry exists but is not a file: {cfg_file_path}");
-            }
-        }
-        Err(e) if e.kind() == std::io::ErrorKind::NotFound => None,
-        Err(e) => {
-            anyhow::bail!("open pageserver config: {e}: {cfg_file_path}");
+    let (mut toml, config_file_exists) = if cfg_file_path.is_file() {
+        if init {
+            anyhow::bail!(
+                "Config file '{cfg_file_path}' already exists, cannot init it, use --update-config to update it",
+            );
         }
+        // Supplement the CLI arguments with the config file
+        let cfg_file_contents = std::fs::read_to_string(cfg_file_path)
+            .with_context(|| format!("Failed to read pageserver config at '{cfg_file_path}'"))?;
+        (
+            cfg_file_contents
+                .parse::<toml_edit::Document>()
+                .with_context(|| {
+                    format!("Failed to parse '{cfg_file_path}' as pageserver config")
+                })?,
+            true,
+        )
+    } else if cfg_file_path.exists() {
+        anyhow::bail!("Config file '{cfg_file_path}' exists but is not a regular file");
+    } else {
+        // We're initializing the tenant, so there's no config file yet
+        (
+            DEFAULT_CONFIG_FILE
+                .parse::<toml_edit::Document>()
+                .context("could not parse built-in config file")?,
+            false,
+        )
     };
 
-    let mut effective_config = file_contents.unwrap_or_else(|| {
-        DEFAULT_CONFIG_FILE
-            .parse()
-            .expect("unit tests ensure this works")
-    });
-
-    // Patch with overrides from the command line
     if let Some(values) = arg_matches.get_many::<String>("config-override") {
         for option_line in values {
             let doc = toml_edit::Document::from_str(option_line).with_context(|| {
@@ -187,21 +187,22 @@ fn initialize_config(
             })?;
 
             for (key, item) in doc.iter() {
-                effective_config.insert(key, item.clone());
+                if config_file_exists && update_config && key == "id" && toml.contains_key(key) {
+                    anyhow::bail!("Pageserver config file exists at '{cfg_file_path}' and has node id already, it cannot be overridden");
+                }
+                toml.insert(key, item.clone());
             }
         }
     }
 
-    debug!("Resulting toml: {effective_config}");
-
-    // Construct the runtime representation
-    let conf = PageServerConf::parse_and_validate(&effective_config, workdir)
+    debug!("Resulting toml: {toml}");
+    let conf = PageServerConf::parse_and_validate(&toml, workdir)
         .context("Failed to parse pageserver configuration")?;
 
-    if init {
+    if update_config {
         info!("Writing pageserver config to '{cfg_file_path}'");
 
-        std::fs::write(cfg_file_path, effective_config.to_string())
+        std::fs::write(cfg_file_path, toml.to_string())
             .with_context(|| format!("Failed to write pageserver config to '{cfg_file_path}'"))?;
         info!("Config successfully written to '{cfg_file_path}'")
     }
@@ -515,12 +516,16 @@ fn start_pageserver(
         }
     });
 
-    let secondary_controller = secondary::spawn_tasks(
-        tenant_manager.clone(),
-        remote_storage.clone(),
-        background_jobs_barrier.clone(),
-        shutdown_pageserver.clone(),
-    );
+    let secondary_controller = if let Some(remote_storage) = &remote_storage {
+        secondary::spawn_tasks(
+            tenant_manager.clone(),
+            remote_storage.clone(),
+            background_jobs_barrier.clone(),
+            shutdown_pageserver.clone(),
+        )
+    } else {
+        secondary::null_controller()
+    };
 
     // shared state between the disk-usage backed eviction background task and the http endpoint
     // that allows triggering disk-usage based eviction manually. note that the http endpoint
@@ -528,13 +533,15 @@ fn start_pageserver(
     // been configured.
     let disk_usage_eviction_state: Arc<disk_usage_eviction_task::State> = Arc::default();
 
-    launch_disk_usage_global_eviction_task(
-        conf,
-        remote_storage.clone(),
-        disk_usage_eviction_state.clone(),
-        tenant_manager.clone(),
-        background_jobs_barrier.clone(),
-    )?;
+    if let Some(remote_storage) = &remote_storage {
+        launch_disk_usage_global_eviction_task(
+            conf,
+            remote_storage.clone(),
+            disk_usage_eviction_state.clone(),
+            tenant_manager.clone(),
+            background_jobs_barrier.clone(),
+        )?;
+    }
 
     // Start up the service to handle HTTP mgmt API request. We created the
     // listener earlier already.
@@ -647,20 +654,17 @@ fn start_pageserver(
             None,
             "libpq endpoint listener",
             true,
-            {
-                let tenant_manager = tenant_manager.clone();
-                async move {
-                    page_service::libpq_listener_main(
-                        tenant_manager,
-                        broker_client,
-                        pg_auth,
-                        pageserver_listener,
-                        conf.pg_auth_type,
-                        libpq_ctx,
-                        task_mgr::shutdown_token(),
-                    )
-                    .await
-                }
+            async move {
+                page_service::libpq_listener_main(
+                    conf,
+                    broker_client,
+                    pg_auth,
+                    pageserver_listener,
+                    conf.pg_auth_type,
+                    libpq_ctx,
+                    task_mgr::shutdown_token(),
+                )
+                .await
             },
         );
     }
@@ -689,7 +693,14 @@ fn start_pageserver(
             // Right now that tree doesn't reach very far, and `task_mgr` is used instead.
             // The plan is to change that over time.
             shutdown_pageserver.take();
-            pageserver::shutdown_pageserver(&tenant_manager, deletion_queue.clone(), 0).await;
+            let bg_remote_storage = remote_storage.clone();
+            let bg_deletion_queue = deletion_queue.clone();
+            pageserver::shutdown_pageserver(
+                &tenant_manager,
+                bg_remote_storage.map(|_| bg_deletion_queue),
+                0,
+            )
+            .await;
             unreachable!()
         })
     }
@@ -697,11 +708,12 @@ fn start_pageserver(
 
 fn create_remote_storage_client(
     conf: &'static PageServerConf,
-) -> anyhow::Result<GenericRemoteStorage> {
+) -> anyhow::Result<Option<GenericRemoteStorage>> {
     let config = if let Some(config) = &conf.remote_storage_config {
         config
     } else {
-        anyhow::bail!("no remote storage configured, this is a deprecated configuration");
+        tracing::warn!("no remote storage configured, this is a deprecated configuration");
+        return Ok(None);
     };
 
     // Create the client
@@ -721,7 +733,7 @@ fn create_remote_storage_client(
             GenericRemoteStorage::unreliable_wrapper(remote_storage, conf.test_remote_failures);
     }
 
-    Ok(remote_storage)
+    Ok(Some(remote_storage))
 }
 
 fn cli() -> Command {
@@ -743,13 +755,18 @@ fn cli() -> Command {
         // See `settings.md` for more details on the extra configuration patameters pageserver can process
         .arg(
             Arg::new("config-override")
-                .long("config-override")
                 .short('c')
                 .num_args(1)
                 .action(ArgAction::Append)
                 .help("Additional configuration overrides of the ones from the toml config file (or new ones to add there). \
                 Any option has to be a valid toml document, example: `-c=\"foo='hey'\"` `-c=\"foo={value=1}\"`"),
         )
+        .arg(
+            Arg::new("update-config")
+                .long("update-config")
+                .action(ArgAction::SetTrue)
+                .help("Update the config file when started"),
+        )
         .arg(
             Arg::new("enabled-features")
                 .long("enabled-features")

pageserver/src/config.rs

@@ -5,17 +5,17 @@
 //! See also `settings.md` for better description on every parameter.
 
 use anyhow::{anyhow, bail, ensure, Context, Result};
-use pageserver_api::{models::CompactionAlgorithm, shard::TenantShardId};
+use pageserver_api::shard::TenantShardId;
 use remote_storage::{RemotePath, RemoteStorageConfig};
 use serde;
 use serde::de::IntoDeserializer;
-use std::env;
+use std::{collections::HashMap, env};
 use storage_broker::Uri;
 use utils::crashsafe::path_with_suffix_extension;
 use utils::id::ConnectionId;
 use utils::logging::SecretString;
 
-use once_cell::sync::{Lazy, OnceCell};
+use once_cell::sync::OnceCell;
 use reqwest::Url;
 use std::num::NonZeroUsize;
 use std::str::FromStr;
@@ -30,9 +30,9 @@ use utils::{
     logging::LogFormat,
 };
 
+use crate::tenant::config::TenantConfOpt;
 use crate::tenant::timeline::GetVectoredImpl;
 use crate::tenant::vectored_blob_io::MaxVectoredReadBytes;
-use crate::tenant::{config::TenantConfOpt, timeline::GetImpl};
 use crate::tenant::{
     TENANTS_SEGMENT_NAME, TENANT_DELETED_MARKER_FILE_NAME, TIMELINES_SEGMENT_NAME,
 };
@@ -51,7 +51,7 @@ pub mod defaults {
     use crate::tenant::config::defaults::*;
     use const_format::formatcp;
 
-    pub use pageserver_api::config::{
+    pub use pageserver_api::{
         DEFAULT_HTTP_LISTEN_ADDR, DEFAULT_HTTP_LISTEN_PORT, DEFAULT_PG_LISTEN_ADDR,
         DEFAULT_PG_LISTEN_PORT,
     };
@@ -91,16 +91,12 @@ pub mod defaults {
 
     pub const DEFAULT_GET_VECTORED_IMPL: &str = "sequential";
 
-    pub const DEFAULT_GET_IMPL: &str = "legacy";
-
     pub const DEFAULT_MAX_VECTORED_READ_BYTES: usize = 128 * 1024; // 128 KiB
 
     pub const DEFAULT_VALIDATE_VECTORED_GET: bool = true;
 
     pub const DEFAULT_EPHEMERAL_BYTES_PER_MEMORY_KB: usize = 0;
 
-    pub const DEFAULT_WALREDO_PROCESS_KIND: &str = "async";
-
     ///
     /// Default built-in configuration file.
     ///
@@ -140,14 +136,10 @@ pub mod defaults {
 
 #get_vectored_impl = '{DEFAULT_GET_VECTORED_IMPL}'
 
-#get_impl = '{DEFAULT_GET_IMPL}'
-
 #max_vectored_read_bytes = '{DEFAULT_MAX_VECTORED_READ_BYTES}'
 
 #validate_vectored_get = '{DEFAULT_VALIDATE_VECTORED_GET}'
 
-#walredo_process_kind = '{DEFAULT_WALREDO_PROCESS_KIND}'
-
 [tenant_config]
 #checkpoint_distance = {DEFAULT_CHECKPOINT_DISTANCE} # in bytes
 #checkpoint_timeout = {DEFAULT_CHECKPOINT_TIMEOUT}
@@ -288,8 +280,6 @@ pub struct PageServerConf {
 
     pub get_vectored_impl: GetVectoredImpl,
 
-    pub get_impl: GetImpl,
-
     pub max_vectored_read_bytes: MaxVectoredReadBytes,
 
     pub validate_vectored_get: bool,
@@ -300,8 +290,6 @@ pub struct PageServerConf {
     ///
     /// Setting this to zero disables limits on total ephemeral layer size.
     pub ephemeral_bytes_per_memory_kb: usize,
-
-    pub walredo_process_kind: crate::walredo::ProcessKind,
 }
 
 /// We do not want to store this in a PageServerConf because the latter may be logged
@@ -335,6 +323,26 @@ impl<T: Clone> BuilderValue<T> {
     }
 }
 
+// Certain metadata (e.g. externally-addressable name, AZ) is delivered
+// as a separate structure.  This information is not neeed by the pageserver
+// itself, it is only used for registering the pageserver with the control
+// plane and/or storage controller.
+//
+#[derive(serde::Deserialize)]
+pub(crate) struct NodeMetadata {
+    #[serde(rename = "host")]
+    pub(crate) postgres_host: String,
+    #[serde(rename = "port")]
+    pub(crate) postgres_port: u16,
+    pub(crate) http_host: String,
+    pub(crate) http_port: u16,
+
+    // Deployment tools may write fields to the metadata file beyond what we
+    // use in this type: this type intentionally only names fields that require.
+    #[serde(flatten)]
+    pub(crate) other: HashMap<String, serde_json::Value>,
+}
+
 // needed to simplify config construction
 #[derive(Default)]
 struct PageServerConfigBuilder {
@@ -400,15 +408,11 @@ struct PageServerConfigBuilder {
 
     get_vectored_impl: BuilderValue<GetVectoredImpl>,
 
-    get_impl: BuilderValue<GetImpl>,
-
     max_vectored_read_bytes: BuilderValue<MaxVectoredReadBytes>,
 
     validate_vectored_get: BuilderValue<bool>,
 
     ephemeral_bytes_per_memory_kb: BuilderValue<usize>,
-
-    walredo_process_kind: BuilderValue<crate::walredo::ProcessKind>,
 }
 
 impl PageServerConfigBuilder {
@@ -491,14 +495,11 @@ impl PageServerConfigBuilder {
             virtual_file_io_engine: Set(DEFAULT_VIRTUAL_FILE_IO_ENGINE.parse().unwrap()),
 
             get_vectored_impl: Set(DEFAULT_GET_VECTORED_IMPL.parse().unwrap()),
-            get_impl: Set(DEFAULT_GET_IMPL.parse().unwrap()),
             max_vectored_read_bytes: Set(MaxVectoredReadBytes(
                 NonZeroUsize::new(DEFAULT_MAX_VECTORED_READ_BYTES).unwrap(),
             )),
             validate_vectored_get: Set(DEFAULT_VALIDATE_VECTORED_GET),
             ephemeral_bytes_per_memory_kb: Set(DEFAULT_EPHEMERAL_BYTES_PER_MEMORY_KB),
-
-            walredo_process_kind: Set(DEFAULT_WALREDO_PROCESS_KIND.parse().unwrap()),
         }
     }
 }
@@ -670,10 +671,6 @@ impl PageServerConfigBuilder {
         self.get_vectored_impl = BuilderValue::Set(value);
     }
 
-    pub fn get_impl(&mut self, value: GetImpl) {
-        self.get_impl = BuilderValue::Set(value);
-    }
-
     pub fn get_max_vectored_read_bytes(&mut self, value: MaxVectoredReadBytes) {
         self.max_vectored_read_bytes = BuilderValue::Set(value);
     }
@@ -686,10 +683,6 @@ impl PageServerConfigBuilder {
         self.ephemeral_bytes_per_memory_kb = BuilderValue::Set(value);
     }
 
-    pub fn get_walredo_process_kind(&mut self, value: crate::walredo::ProcessKind) {
-        self.walredo_process_kind = BuilderValue::Set(value);
-    }
-
     pub fn build(self) -> anyhow::Result<PageServerConf> {
         let default = Self::default_values();
 
@@ -743,11 +736,9 @@ impl PageServerConfigBuilder {
                 secondary_download_concurrency,
                 ingest_batch_size,
                 get_vectored_impl,
-                get_impl,
                 max_vectored_read_bytes,
                 validate_vectored_get,
                 ephemeral_bytes_per_memory_kb,
-                walredo_process_kind,
             }
             CUSTOM LOGIC
             {
@@ -1029,9 +1020,6 @@ impl PageServerConf {
                 "get_vectored_impl" => {
                     builder.get_vectored_impl(parse_toml_from_str("get_vectored_impl", item)?)
                 }
-                "get_impl" => {
-                    builder.get_impl(parse_toml_from_str("get_impl", item)?)
-                }
                 "max_vectored_read_bytes" => {
                     let bytes = parse_toml_u64("max_vectored_read_bytes", item)? as usize;
                     builder.get_max_vectored_read_bytes(
@@ -1044,9 +1032,6 @@ impl PageServerConf {
                 "ephemeral_bytes_per_memory_kb" => {
                     builder.get_ephemeral_bytes_per_memory_kb(parse_toml_u64("ephemeral_bytes_per_memory_kb", item)? as usize)
                 }
-                "walredo_process_kind" => {
-                    builder.get_walredo_process_kind(parse_toml_from_str("walredo_process_kind", item)?)
-                }
                 _ => bail!("unrecognized pageserver option '{key}'"),
             }
         }
@@ -1067,19 +1052,6 @@ impl PageServerConf {
 
         conf.default_tenant_conf = t_conf.merge(TenantConf::default());
 
-        {
-            const VAR_NAME: &str = "NEON_PAGESERVER_PANIC_ON_UNSPECIFIED_COMPACTION_ALGORITHM";
-            static VAR: Lazy<Option<bool>> = Lazy::new(|| utils::env::var(VAR_NAME));
-            if VAR.unwrap_or(false)
-                && conf.default_tenant_conf.compaction_algorithm.kind
-                    == CompactionAlgorithm::NotSpecified
-            {
-                panic!(
-                        "Unspecified compaction algorithm in default tenant configuration. \
-                        Set the algorithm explicitly in the pageserver.toml's `tenant_config` field or unset the environment variable {VAR_NAME}");
-            }
-        }
-
         Ok(conf)
     }
 
@@ -1136,14 +1108,12 @@ impl PageServerConf {
             ingest_batch_size: defaults::DEFAULT_INGEST_BATCH_SIZE,
             virtual_file_io_engine: DEFAULT_VIRTUAL_FILE_IO_ENGINE.parse().unwrap(),
             get_vectored_impl: defaults::DEFAULT_GET_VECTORED_IMPL.parse().unwrap(),
-            get_impl: defaults::DEFAULT_GET_IMPL.parse().unwrap(),
             max_vectored_read_bytes: MaxVectoredReadBytes(
                 NonZeroUsize::new(defaults::DEFAULT_MAX_VECTORED_READ_BYTES)
                     .expect("Invalid default constant"),
             ),
             validate_vectored_get: defaults::DEFAULT_VALIDATE_VECTORED_GET,
             ephemeral_bytes_per_memory_kb: defaults::DEFAULT_EPHEMERAL_BYTES_PER_MEMORY_KB,
-            walredo_process_kind: defaults::DEFAULT_WALREDO_PROCESS_KIND.parse().unwrap(),
         }
     }
 }
@@ -1376,14 +1346,12 @@ background_task_maximum_delay = '334 s'
                 ingest_batch_size: defaults::DEFAULT_INGEST_BATCH_SIZE,
                 virtual_file_io_engine: DEFAULT_VIRTUAL_FILE_IO_ENGINE.parse().unwrap(),
                 get_vectored_impl: defaults::DEFAULT_GET_VECTORED_IMPL.parse().unwrap(),
-                get_impl: defaults::DEFAULT_GET_IMPL.parse().unwrap(),
                 max_vectored_read_bytes: MaxVectoredReadBytes(
                     NonZeroUsize::new(defaults::DEFAULT_MAX_VECTORED_READ_BYTES)
                         .expect("Invalid default constant")
                 ),
                 validate_vectored_get: defaults::DEFAULT_VALIDATE_VECTORED_GET,
-                ephemeral_bytes_per_memory_kb: defaults::DEFAULT_EPHEMERAL_BYTES_PER_MEMORY_KB,
-                walredo_process_kind: defaults::DEFAULT_WALREDO_PROCESS_KIND.parse().unwrap(),
+                ephemeral_bytes_per_memory_kb: defaults::DEFAULT_EPHEMERAL_BYTES_PER_MEMORY_KB
             },
             "Correct defaults should be used when no config values are provided"
         );
@@ -1450,14 +1418,12 @@ background_task_maximum_delay = '334 s'
                 ingest_batch_size: 100,
                 virtual_file_io_engine: DEFAULT_VIRTUAL_FILE_IO_ENGINE.parse().unwrap(),
                 get_vectored_impl: defaults::DEFAULT_GET_VECTORED_IMPL.parse().unwrap(),
-                get_impl: defaults::DEFAULT_GET_IMPL.parse().unwrap(),
                 max_vectored_read_bytes: MaxVectoredReadBytes(
                     NonZeroUsize::new(defaults::DEFAULT_MAX_VECTORED_READ_BYTES)
                         .expect("Invalid default constant")
                 ),
                 validate_vectored_get: defaults::DEFAULT_VALIDATE_VECTORED_GET,
-                ephemeral_bytes_per_memory_kb: defaults::DEFAULT_EPHEMERAL_BYTES_PER_MEMORY_KB,
-                walredo_process_kind: defaults::DEFAULT_WALREDO_PROCESS_KIND.parse().unwrap(),
+                ephemeral_bytes_per_memory_kb: defaults::DEFAULT_EPHEMERAL_BYTES_PER_MEMORY_KB
             },
             "Should be able to parse all basic config values correctly"
         );
@@ -1570,7 +1536,6 @@ broker_endpoint = '{broker_endpoint}'
                         endpoint: Some(endpoint.clone()),
                         concurrency_limit: s3_concurrency_limit,
                         max_keys_per_list_response: None,
-                        upload_storage_class: None,
                     }),
                     timeout: RemoteStorageConfig::DEFAULT_TIMEOUT,
                 },

pageserver/src/consumption_metrics.rs

@@ -304,7 +304,7 @@ async fn calculate_synthetic_size_worker(
                 continue;
             }
 
-            if !tenant_shard_id.is_shard_zero() {
+            if !tenant_shard_id.is_zero() {
                 // We only send consumption metrics from shard 0, so don't waste time calculating
                 // synthetic size on other shards.
                 continue;