rewrite with custom json serializer

remove locking from extract, use refcell instead
remove lasso from json logger, use field index for lookup
2026-02-09 05:30:37 +00:00 · 2025-05-18 13:41:43 +02:00 · 2025-05-17 22:14:26 +02:00 · 2025-05-17 22:14:26 +02:00 · 2025-05-17 22:14:26 +02:00 · 2025-05-17 22:14:26 +02:00
484 changed files with 10749 additions and 36626 deletions
--- a/.github/workflows/_build-and-test-locally.yml
+++ b/.github/workflows/_build-and-test-locally.yml
@@ -38,11 +38,6 @@ on:
        required: false
        default: 1
        type: number
-      rerun-failed:
-        description: 'rerun failed tests to ignore flaky tests'
-        required: false
-        default: true
-        type: boolean

 defaults:
  run:
@@ -104,10 +99,11 @@ jobs:

      # Set some environment variables used by all the steps.
      #
-      # CARGO_FLAGS is extra options to pass to all "cargo" subcommands.
+      # CARGO_FLAGS is extra options to pass to "cargo build", "cargo test" etc.
+      #   It also includes --features, if any
      #
-      # CARGO_PROFILE is passed to "cargo build", "cargo test" etc, but not to
-      #   "cargo metadata", because it doesn't accept --release or --debug options.
+      # CARGO_FEATURES is passed to "cargo metadata". It is separate from CARGO_FLAGS,
+      #   because "cargo metadata" doesn't accept --release or --debug options
      #
      # We run tests with addtional features, that are turned off by default (e.g. in release builds), see
      # corresponding Cargo.toml files for their descriptions.
@@ -116,16 +112,16 @@ jobs:
          ARCH: ${{ inputs.arch }}
          SANITIZERS: ${{ inputs.sanitizers }}
        run: |
-          CARGO_FLAGS="--locked --features testing"
+          CARGO_FEATURES="--features testing"
          if [[ $BUILD_TYPE == "debug" && $ARCH == 'x64' ]]; then
            cov_prefix="scripts/coverage --profraw-prefix=$GITHUB_JOB --dir=/tmp/coverage run"
-            CARGO_PROFILE=""
+            CARGO_FLAGS="--locked"
          elif [[ $BUILD_TYPE == "debug" ]]; then
            cov_prefix=""
-            CARGO_PROFILE=""
+            CARGO_FLAGS="--locked"
          elif [[ $BUILD_TYPE == "release" ]]; then
            cov_prefix=""
-            CARGO_PROFILE="--release"
+            CARGO_FLAGS="--locked --release"
          fi
          if [[ $SANITIZERS == 'enabled' ]]; then
            make_vars="WITH_SANITIZERS=yes"
@@ -135,8 +131,8 @@ jobs:
          {
            echo "cov_prefix=${cov_prefix}"
            echo "make_vars=${make_vars}"
+            echo "CARGO_FEATURES=${CARGO_FEATURES}"
            echo "CARGO_FLAGS=${CARGO_FLAGS}"
-            echo "CARGO_PROFILE=${CARGO_PROFILE}"
            echo "CARGO_HOME=${GITHUB_WORKSPACE}/.cargo"
          } >> $GITHUB_ENV

@@ -188,18 +184,34 @@ jobs:
          path: pg_install/v17
          key: v1-${{ runner.os }}-${{ runner.arch }}-${{ inputs.build-type }}-pg-${{ steps.pg_v17_rev.outputs.pg_rev }}-bookworm-${{ hashFiles('Makefile', 'build-tools.Dockerfile') }}

-      - name: Build all
-        # Note: the Makefile picks up BUILD_TYPE and CARGO_PROFILE from the env variables
-        run: mold -run make ${make_vars} all -j$(nproc) CARGO_BUILD_FLAGS="$CARGO_FLAGS"
+      - name: Build postgres v14
+        if: steps.cache_pg_14.outputs.cache-hit != 'true'
+        run: mold -run make ${make_vars} postgres-v14 -j$(nproc)
+
+      - name: Build postgres v15
+        if: steps.cache_pg_15.outputs.cache-hit != 'true'
+        run: mold -run make ${make_vars} postgres-v15 -j$(nproc)
+
+      - name: Build postgres v16
+        if: steps.cache_pg_16.outputs.cache-hit != 'true'
+        run: mold -run make ${make_vars} postgres-v16 -j$(nproc)
+
+      - name: Build postgres v17
+        if: steps.cache_pg_17.outputs.cache-hit != 'true'
+        run: mold -run make ${make_vars} postgres-v17 -j$(nproc)
+
+      - name: Build neon extensions
+        run: mold -run make ${make_vars} neon-pg-ext -j$(nproc)

      - name: Build walproposer-lib
        run: mold -run make ${make_vars} walproposer-lib -j$(nproc)

-      - name: Build unit tests
-        if: inputs.sanitizers != 'enabled'
+      - name: Run cargo build
+        env:
+          WITH_TESTS: ${{ inputs.sanitizers != 'enabled' && '--tests' || '' }}
        run: |
          export ASAN_OPTIONS=detect_leaks=0
-          ${cov_prefix} mold -run cargo build $CARGO_FLAGS $CARGO_PROFILE --tests
+          ${cov_prefix} mold -run cargo build $CARGO_FLAGS $CARGO_FEATURES --bins ${WITH_TESTS}

      # Do install *before* running rust tests because they might recompile the
      # binaries with different features/flags.
@@ -211,7 +223,7 @@ jobs:
          # Install target binaries
          mkdir -p /tmp/neon/bin/
          binaries=$(
-            ${cov_prefix} cargo metadata $CARGO_FLAGS --format-version=1 --no-deps |
+            ${cov_prefix} cargo metadata $CARGO_FEATURES --format-version=1 --no-deps |
            jq -r '.packages[].targets[] | select(.kind | index("bin")) | .name'
          )
          for bin in $binaries; do
@@ -228,7 +240,7 @@ jobs:
            mkdir -p /tmp/neon/test_bin/

            test_exe_paths=$(
-              ${cov_prefix} cargo test $CARGO_FLAGS $CARGO_PROFILE --message-format=json --no-run |
+              ${cov_prefix} cargo test $CARGO_FLAGS $CARGO_FEATURES --message-format=json --no-run |
              jq -r '.executable | select(. != null)'
            )
            for bin in $test_exe_paths; do
@@ -262,10 +274,10 @@ jobs:
          export LD_LIBRARY_PATH

          #nextest does not yet support running doctests
-          ${cov_prefix} cargo test --doc $CARGO_FLAGS $CARGO_PROFILE
+          ${cov_prefix} cargo test --doc $CARGO_FLAGS $CARGO_FEATURES

          # run all non-pageserver tests
-          ${cov_prefix} cargo nextest run $CARGO_FLAGS $CARGO_PROFILE -E '!package(pageserver)'
+          ${cov_prefix} cargo nextest run $CARGO_FLAGS $CARGO_FEATURES -E '!package(pageserver)'

          # run pageserver tests
          # (When developing new pageserver features gated by config fields, we commonly make the rust
@@ -274,13 +286,13 @@ jobs:
          # pageserver tests from non-pageserver tests cuts down the time it takes for this CI step.)
          NEON_PAGESERVER_UNIT_TEST_VIRTUAL_FILE_IOENGINE=tokio-epoll-uring  \
          ${cov_prefix} \
-          cargo nextest run $CARGO_FLAGS $CARGO_PROFILE  -E 'package(pageserver)'
+          cargo nextest run $CARGO_FLAGS $CARGO_FEATURES  -E 'package(pageserver)'

          # 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
-          ${cov_prefix} cargo nextest run $CARGO_FLAGS $CARGO_PROFILE -E 'package(remote_storage)' -E 'test(test_real_s3)'
+          ${cov_prefix} cargo nextest run $CARGO_FLAGS $CARGO_FEATURES -E 'package(remote_storage)' -E 'test(test_real_s3)'

          # Run separate tests for real Azure Blob Storage
          # XXX: replace region with `eu-central-1`-like region
@@ -289,17 +301,17 @@ jobs:
          export AZURE_STORAGE_ACCESS_KEY="${{ secrets.AZURE_STORAGE_ACCESS_KEY_DEV }}"
          export REMOTE_STORAGE_AZURE_CONTAINER="${{ vars.REMOTE_STORAGE_AZURE_CONTAINER }}"
          export REMOTE_STORAGE_AZURE_REGION="${{ vars.REMOTE_STORAGE_AZURE_REGION }}"
-          ${cov_prefix} cargo nextest run $CARGO_FLAGS $CARGO_PROFILE -E 'package(remote_storage)' -E 'test(test_real_azure)'
+          ${cov_prefix} cargo nextest run $CARGO_FLAGS $CARGO_FEATURES -E 'package(remote_storage)' -E 'test(test_real_azure)'

      - name: Install postgres binaries
        run: |
          # Use tar to copy files matching the pattern, preserving the paths in the destionation
          tar c \
            pg_install/v* \
-            build/*/src/test/regress/*.so \
-            build/*/src/test/regress/pg_regress \
-            build/*/src/test/isolation/isolationtester \
-            build/*/src/test/isolation/pg_isolation_regress \
+            pg_install/build/*/src/test/regress/*.so \
+            pg_install/build/*/src/test/regress/pg_regress \
+            pg_install/build/*/src/test/isolation/isolationtester \
+            pg_install/build/*/src/test/isolation/pg_isolation_regress \
            | tar  x -C /tmp/neon

      - name: Upload Neon artifact
@@ -367,7 +379,7 @@ jobs:
      - name: Pytest regression tests
        continue-on-error: ${{ matrix.lfc_state == 'with-lfc' && inputs.build-type == 'debug' }}
        uses: ./.github/actions/run-python-test-set
-        timeout-minutes: ${{ (inputs.build-type == 'release' && inputs.sanitizers != 'enabled') && 75 || 180 }}
+        timeout-minutes: ${{ inputs.sanitizers != 'enabled' && 75 || 180 }}
        with:
          build_type: ${{ inputs.build-type }}
          test_selection: regress
@@ -375,14 +387,14 @@ jobs:
          run_with_real_s3: true
          real_s3_bucket: neon-github-ci-tests
          real_s3_region: eu-central-1
-          rerun_failed: ${{ inputs.rerun-failed }}
+          rerun_failed: ${{ inputs.test-run-count == 1 }}
          pg_version: ${{ matrix.pg_version }}
          sanitizers: ${{ inputs.sanitizers }}
          aws-oidc-role-arn: ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}
          # `--session-timeout` is equal to (timeout-minutes - 10 minutes) * 60 seconds.
          # Attempt to stop tests gracefully to generate test reports
          # until they are forcibly stopped by the stricter `timeout-minutes` limit.
-          extra_params: --session-timeout=${{ (inputs.build-type == 'release' && inputs.sanitizers != 'enabled') && 3000 || 10200 }} --count=${{ inputs.test-run-count }}
+          extra_params: --session-timeout=${{ inputs.sanitizers != 'enabled' && 3000 || 10200 }} --count=${{ inputs.test-run-count }}
                        ${{ inputs.test-selection != '' && format('-k "{0}"', inputs.test-selection) || '' }}
        env:
          TEST_RESULT_CONNSTR: ${{ secrets.REGRESS_TEST_RESULT_CONNSTR_NEW }}
--- a/.github/workflows/build-macos.yml
+++ b/.github/workflows/build-macos.yml
@@ -110,7 +110,7 @@ jobs:

  build-walproposer-lib:
    if: |
-      contains(inputs.pg_versions, 'v17') || inputs.rebuild_everything ||
+      inputs.pg_versions != '[]' || inputs.rebuild_everything ||
      contains(github.event.pull_request.labels.*.name, 'run-extra-build-macos')  ||
      contains(github.event.pull_request.labels.*.name, 'run-extra-build-*') ||
      github.ref_name == 'main'
@@ -144,7 +144,7 @@ jobs:
        id: cache_walproposer_lib
        uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
        with:
-          path: build/walproposer-lib
+          path: pg_install/build/walproposer-lib
          key: v1-${{ runner.os }}-${{ runner.arch }}-${{ env.BUILD_TYPE }}-walproposer_lib-v17-${{ steps.pg_rev.outputs.pg_rev }}-${{ hashFiles('Makefile') }}

      - name: Checkout submodule vendor/postgres-v17
@@ -169,11 +169,11 @@ jobs:
        run:
          make walproposer-lib -j$(sysctl -n hw.ncpu)

-      - name: Upload "build/walproposer-lib" artifact
+      - name: Upload "pg_install/build/walproposer-lib" artifact
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
-          name: build--walproposer-lib
-          path: build/walproposer-lib
+          name: pg_install--build--walproposer-lib
+          path: pg_install/build/walproposer-lib
          # The artifact is supposed to be used by the next job in the same workflow,
          # so there’s no need to store it for too long.
          retention-days: 1
@@ -226,11 +226,11 @@ jobs:
          name: pg_install--v17
          path: pg_install/v17

-      - name: Download "build/walproposer-lib" artifact
+      - name: Download "pg_install/build/walproposer-lib" artifact
        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
        with:
-          name: build--walproposer-lib
-          path: build/walproposer-lib
+          name: pg_install--build--walproposer-lib
+          path: pg_install/build/walproposer-lib

      # `actions/download-artifact` doesn't preserve permissions:
      # https://github.com/actions/download-artifact?tab=readme-ov-file#permission-loss
--- a/.github/workflows/build_and_run_selected_test.yml
+++ b/.github/workflows/build_and_run_selected_test.yml
@@ -58,7 +58,6 @@ jobs:
      test-cfg: ${{ inputs.pg-versions }}
      test-selection: ${{ inputs.test-selection }}
      test-run-count: ${{ fromJson(inputs.run-count) }}
-      rerun-failed: false
    secrets: inherit

  create-test-report:
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -199,28 +199,6 @@ jobs:
      build-tools-image: ${{ needs.build-build-tools-image.outputs.image }}-bookworm
    secrets: inherit

-  validate-compute-manifest:
-    runs-on: ubuntu-22.04
-    needs: [ meta, check-permissions ]
-    # We do need to run this in `.*-rc-pr` because of hotfixes.
-    if: ${{ contains(fromJSON('["pr", "push-main", "storage-rc-pr", "proxy-rc-pr", "compute-rc-pr"]'), needs.meta.outputs.run-kind) }}
-    steps:
-      - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@4d991eb9b905ef189e4c376166672c3f2f230481 # v2.11.0
-        with:
-          egress-policy: audit
-
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-
-      - name: Set up Node.js
-        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
-        with:
-          node-version: '24'
-
-      - name: Validate manifest against schema
-        run: |
-          make -C compute manifest-schema-validation
-
  build-and-test-locally:
    needs: [ meta, build-build-tools-image ]
    # We do need to run this in `.*-rc-pr` because of hotfixes.
@@ -336,8 +314,7 @@ jobs:
          test_selection: performance
          run_in_parallel: false
          save_perf_report: ${{ github.ref_name == 'main' }}
-          # test_pageserver_max_throughput_getpage_at_latest_lsn is run in separate workflow periodic_pagebench.yml because it needs snapshots
-          extra_params: --splits 5 --group ${{ matrix.pytest_split_group }} --ignore=test_runner/performance/pageserver/pagebench/test_pageserver_max_throughput_getpage_at_latest_lsn.py
+          extra_params: --splits 5 --group ${{ matrix.pytest_split_group }}
          benchmark_durations: ${{ needs.get-benchmarks-durations.outputs.json }}
          pg_version: v16
          aws-oidc-role-arn: ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}
@@ -670,7 +647,7 @@ jobs:
                                             ghcr.io/neondatabase/neon:${{ needs.meta.outputs.build-tag }}-bookworm-arm64

  compute-node-image-arch:
-    needs: [ check-permissions, meta ]
+    needs: [ check-permissions, build-build-tools-image, meta ]
    if: ${{ contains(fromJSON('["push-main", "pr", "compute-rc-pr"]'), needs.meta.outputs.run-kind) }}
    permissions:
      id-token: write # aws-actions/configure-aws-credentials
@@ -743,6 +720,7 @@ jobs:
            GIT_VERSION=${{ github.event.pull_request.head.sha || github.sha }}
            PG_VERSION=${{ matrix.version.pg }}
            BUILD_TAG=${{ needs.meta.outputs.release-tag || needs.meta.outputs.build-tag }}
+            TAG=${{ needs.build-build-tools-image.outputs.image-tag }}-${{ matrix.version.debian }}
            DEBIAN_VERSION=${{ matrix.version.debian }}
          provenance: false
          push: true
@@ -762,6 +740,7 @@ jobs:
            GIT_VERSION=${{ github.event.pull_request.head.sha || github.sha }}
            PG_VERSION=${{ matrix.version.pg }}
            BUILD_TAG=${{ needs.meta.outputs.release-tag || needs.meta.outputs.build-tag }}
+            TAG=${{ needs.build-build-tools-image.outputs.image-tag }}-${{ matrix.version.debian }}
            DEBIAN_VERSION=${{ matrix.version.debian }}
          provenance: false
          push: true
--- a/.github/workflows/build_and_test_fully.yml
+++ b/.github/workflows/build_and_test_fully.yml
@@ -1,151 +0,0 @@
-name: Build and Test Fully
-
-on:
-  schedule:
-    # * is a special character in YAML so you have to quote this string
-    #          ┌───────────── minute (0 - 59)
-    #          │ ┌───────────── hour (0 - 23)
-    #          │ │ ┌───────────── day of the month (1 - 31)
-    #          │ │ │ ┌───────────── month (1 - 12 or JAN-DEC)
-    #          │ │ │ │ ┌───────────── day of the week (0 - 6 or SUN-SAT)
-    - cron:   '0 3 * * *' # run once a day, timezone is utc
-  workflow_dispatch:
-
-defaults:
-  run:
-    shell: bash -euxo pipefail {0}
-
-concurrency:
-  # Allow only one workflow per any non-`main` branch.
-  group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.ref_name == 'main' && github.sha || 'anysha' }}
-  cancel-in-progress: true
-
-env:
-  RUST_BACKTRACE: 1
-  COPT: '-Werror'
-
-jobs:
-  tag:
-    runs-on: [ self-hosted, small ]
-    container: ${{ vars.NEON_DEV_AWS_ACCOUNT_ID }}.dkr.ecr.${{ vars.AWS_ECR_REGION }}.amazonaws.com/base:pinned
-    outputs:
-      build-tag: ${{steps.build-tag.outputs.tag}}
-
-    steps:
-      # Need `fetch-depth: 0` to count the number of commits in the branch
-      - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@4d991eb9b905ef189e4c376166672c3f2f230481 # v2.11.0
-        with:
-          egress-policy: audit
-
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-        with:
-          fetch-depth: 0
-
-      - name: Get build tag
-        run: |
-          echo run:$GITHUB_RUN_ID
-          echo ref:$GITHUB_REF_NAME
-          echo rev:$(git rev-list --count HEAD)
-          if [[ "$GITHUB_REF_NAME" == "main" ]]; then
-            echo "tag=$(git rev-list --count HEAD)" >> $GITHUB_OUTPUT
-          elif [[ "$GITHUB_REF_NAME" == "release" ]]; then
-            echo "tag=release-$(git rev-list --count HEAD)" >> $GITHUB_OUTPUT
-          elif [[ "$GITHUB_REF_NAME" == "release-proxy" ]]; then
-            echo "tag=release-proxy-$(git rev-list --count HEAD)" >> $GITHUB_OUTPUT
-          elif [[ "$GITHUB_REF_NAME" == "release-compute" ]]; then
-            echo "tag=release-compute-$(git rev-list --count HEAD)" >> $GITHUB_OUTPUT
-          else
-            echo "GITHUB_REF_NAME (value '$GITHUB_REF_NAME') is not set to either 'main' or 'release', 'release-proxy', 'release-compute'"
-            echo "tag=$GITHUB_RUN_ID" >> $GITHUB_OUTPUT
-          fi
-        shell: bash
-        id: build-tag
-
-  build-build-tools-image:
-    uses: ./.github/workflows/build-build-tools-image.yml
-    secrets: inherit
-
-  build-and-test-locally:
-    needs: [ tag, build-build-tools-image ]
-    strategy:
-      fail-fast: false
-      matrix:
-        arch: [ x64, arm64 ]
-        build-type: [ debug, release ]
-    uses: ./.github/workflows/_build-and-test-locally.yml
-    with:
-      arch: ${{ matrix.arch }}
-      build-tools-image: ${{ needs.build-build-tools-image.outputs.image }}-bookworm
-      build-tag: ${{ needs.tag.outputs.build-tag }}
-      build-type: ${{ matrix.build-type }}
-      rerun-failed: false
-      test-cfg: '[{"pg_version":"v14", "lfc_state": "with-lfc"},
-                  {"pg_version":"v15", "lfc_state": "with-lfc"},
-                  {"pg_version":"v16", "lfc_state": "with-lfc"},
-                  {"pg_version":"v17", "lfc_state": "with-lfc"},
-                  {"pg_version":"v14", "lfc_state": "without-lfc"},
-                  {"pg_version":"v15", "lfc_state": "without-lfc"},
-                  {"pg_version":"v16", "lfc_state": "without-lfc"},
-                  {"pg_version":"v17", "lfc_state": "withouts-lfc"}]'
-    secrets: inherit
-
-
-  create-test-report:
-    needs: [ build-and-test-locally, build-build-tools-image ]
-    if: ${{ !cancelled() }}
-    permissions:
-      id-token: write # aws-actions/configure-aws-credentials
-      statuses: write
-      contents: write
-      pull-requests: write
-    outputs:
-      report-url: ${{ steps.create-allure-report.outputs.report-url }}
-
-    runs-on: [ self-hosted, small ]
-    container:
-      image: ${{ needs.build-build-tools-image.outputs.image }}-bookworm
-      credentials:
-        username: ${{ github.actor }}
-        password: ${{ secrets.GITHUB_TOKEN }}
-      options: --init
-
-    steps:
-      - name: Harden the runner (Audit all outbound calls)
-        uses: step-security/harden-runner@4d991eb9b905ef189e4c376166672c3f2f230481 # v2.11.0
-        with:
-          egress-policy: audit
-
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-
-      - name: Create Allure report
-        if: ${{ !cancelled() }}
-        id: create-allure-report
-        uses: ./.github/actions/allure-report-generate
-        with:
-          store-test-results-into-db: true
-          aws-oidc-role-arn: ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}
-        env:
-          REGRESS_TEST_RESULT_CONNSTR_NEW: ${{ secrets.REGRESS_TEST_RESULT_CONNSTR_NEW }}
-
-      - uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
-        if: ${{ !cancelled() }}
-        with:
-          # Retry script for 5XX server errors: https://github.com/actions/github-script#retries
-          retries: 5
-          script: |
-            const report = {
-              reportUrl:     "${{ steps.create-allure-report.outputs.report-url }}",
-              reportJsonUrl: "${{ steps.create-allure-report.outputs.report-json-url }}",
-            }
-
-            const coverage = {}
-
-            const script = require("./scripts/comment-test-report.js")
-            await script({
-              github,
-              context,
-              fetch,
-              report,
-              coverage,
-            })
--- a/.github/workflows/build_and_test_with_sanitizers.yml
+++ b/.github/workflows/build_and_test_with_sanitizers.yml
@@ -79,7 +79,6 @@ jobs:
      build-tools-image: ${{ needs.build-build-tools-image.outputs.image }}-bookworm
      build-tag: ${{ needs.tag.outputs.build-tag }}
      build-type: ${{ matrix.build-type }}
-      rerun-failed: false
      test-cfg: '[{"pg_version":"v17"}]'
      sanitizers: enabled
    secrets: inherit
--- a/.github/workflows/large_oltp_benchmark.yml
+++ b/.github/workflows/large_oltp_benchmark.yml
@@ -33,19 +33,11 @@ jobs:
      fail-fast: false # allow other variants to continue even if one fails
      matrix:
        include:
-          # test only read-only custom scripts in new branch without database maintenance
-          - target: new_branch
-            custom_scripts: select_any_webhook_with_skew.sql@300 select_recent_webhook.sql@397 select_prefetch_webhook.sql@3
-            test_maintenance: false
-          # test all custom scripts in new branch with database maintenance
          - target: new_branch
            custom_scripts: insert_webhooks.sql@200 select_any_webhook_with_skew.sql@300 select_recent_webhook.sql@397 select_prefetch_webhook.sql@3 IUD_one_transaction.sql@100
-            test_maintenance: true
-          # test all custom scripts in reuse branch with database maintenance
          - target: reuse_branch
            custom_scripts: insert_webhooks.sql@200 select_any_webhook_with_skew.sql@300 select_recent_webhook.sql@397 select_prefetch_webhook.sql@3 IUD_one_transaction.sql@100
-            test_maintenance: true
-      max-parallel: 1 # we want to run each benchmark sequentially to not have noisy neighbors on shared storage (PS, SK)
+      max-parallel: 1 # we want to run each stripe size sequentially to be able to compare the results
    permissions:
      contents: write
      statuses: write
@@ -153,7 +145,6 @@ jobs:
        PERF_TEST_RESULT_CONNSTR: "${{ secrets.PERF_TEST_RESULT_CONNSTR }}"

    - name: Benchmark database maintenance
-      if: ${{ matrix.test_maintenance == 'true' }}
      uses: ./.github/actions/run-python-test-set
      with:
        build_type: ${{ env.BUILD_TYPE }}
--- a/.github/workflows/large_oltp_growth.yml
+++ b/.github/workflows/large_oltp_growth.yml
@@ -1,175 +0,0 @@
-name: large oltp growth
-# workflow to grow the reuse branch of large oltp benchmark continuously (about 16 GB per run)
-
-on:
-  # uncomment to run on push for debugging your PR
-  # push:
-  #  branches: [ bodobolero/increase_large_oltp_workload ]
-
-  schedule:
-    # * is a special character in YAML so you have to quote this string
-    #        ┌───────────── minute (0 - 59)
-    #        │ ┌───────────── hour (0 - 23)
-    #        │ │  ┌───────────── day of the month (1 - 31)
-    #        │ │  │ ┌───────────── month (1 - 12 or JAN-DEC)
-    #        │ │  │ │ ┌───────────── day of the week (0 - 6 or SUN-SAT)
-    - cron: '0 6 * * *'   # 06:00 UTC
-    - cron: '0 8 * * *'   # 08:00 UTC
-    - cron: '0 10 * * *'  # 10:00 UTC
-    - cron: '0 12 * * *'  # 12:00 UTC
-    - cron: '0 14 * * *'  # 14:00 UTC
-    - cron: '0 16 * * *'  # 16:00 UTC
-  workflow_dispatch: # adds ability to run this manually
-
-defaults:
-  run:
-    shell: bash -euxo pipefail {0}
-
-concurrency:
-  # Allow only one workflow globally because we need dedicated resources which only exist once
-  group: large-oltp-growth
-  cancel-in-progress: true
-
-permissions:
-  contents: read
-
-jobs:
-  oltp:
-    strategy:
-      fail-fast: false # allow other variants to continue even if one fails
-      matrix:
-        include:
-          # for now only grow the reuse branch, not the other branches.
-          - target: reuse_branch
-            custom_scripts:
-            - grow_action_blocks.sql
-            - grow_action_kwargs.sql
-            - grow_device_fingerprint_event.sql
-            - grow_edges.sql
-            - grow_hotel_rate_mapping.sql
-            - grow_ocr_pipeline_results_version.sql
-            - grow_priceline_raw_response.sql
-            - grow_relabled_transactions.sql
-            - grow_state_values.sql
-            - grow_values.sql
-            - grow_vertices.sql
-            - update_accounting_coding_body_tracking_category_selection.sql
-            - update_action_blocks.sql
-            - update_action_kwargs.sql
-            - update_denormalized_approval_workflow.sql
-            - update_device_fingerprint_event.sql
-            - update_edges.sql
-            - update_heron_transaction_enriched_log.sql
-            - update_heron_transaction_enrichment_requests.sql
-            - update_hotel_rate_mapping.sql
-            - update_incoming_webhooks.sql
-            - update_manual_transaction.sql
-            - update_ml_receipt_matching_log.sql
-            - update_ocr_pipeine_results_version.sql
-            - update_orc_pipeline_step_results.sql
-            - update_orc_pipeline_step_results_version.sql
-            - update_priceline_raw_response.sql
-            - update_quickbooks_transactions.sql
-            - update_raw_finicity_transaction.sql
-            - update_relabeled_transactions.sql
-            - update_state_values.sql
-            - update_stripe_authorization_event_log.sql
-            - update_transaction.sql
-            - update_values.sql
-            - update_vertices.sql
-      max-parallel: 1 # we want to run each growth workload sequentially (for now there is just one)
-    permissions:
-      contents: write
-      statuses: write
-      id-token: write # aws-actions/configure-aws-credentials
-    env:
-      TEST_PG_BENCH_DURATIONS_MATRIX: "1h"
-      TEST_PGBENCH_CUSTOM_SCRIPTS: ${{ join(matrix.custom_scripts, ' ') }}
-      POSTGRES_DISTRIB_DIR: /tmp/neon/pg_install
-      PG_VERSION: 16 # pre-determined by pre-determined project
-      TEST_OUTPUT: /tmp/test_output
-      BUILD_TYPE: remote
-      PLATFORM: ${{ matrix.target }}
-
-    runs-on: [ self-hosted, us-east-2, x64 ]
-    container:
-      image: ghcr.io/neondatabase/build-tools:pinned-bookworm
-      credentials:
-        username: ${{ github.actor }}
-        password: ${{ secrets.GITHUB_TOKEN }}
-      options: --init
-
-    steps:
-    - name: Harden the runner (Audit all outbound calls)
-      uses: step-security/harden-runner@4d991eb9b905ef189e4c376166672c3f2f230481 # v2.11.0
-      with:
-        egress-policy: audit
-
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-
-    - name: Configure AWS credentials # necessary to download artefacts
-      uses: aws-actions/configure-aws-credentials@e3dd6a429d7300a6a4c196c26e071d42e0343502 # v4.0.2
-      with:
-        aws-region: eu-central-1
-        role-to-assume: ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}
-        role-duration-seconds: 18000 # 5 hours is currently max associated with IAM role
-
-    - name: Download Neon artifact
-      uses: ./.github/actions/download
-      with:
-        name: neon-${{ runner.os }}-${{ runner.arch }}-release-artifact
-        path: /tmp/neon/
-        prefix: latest
-        aws-oidc-role-arn: ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}
-
-    - name: Set up Connection String
-      id: set-up-connstr
-      run: |
-        case "${{ matrix.target }}" in
-          reuse_branch)
-          CONNSTR=${{ secrets.BENCHMARK_LARGE_OLTP_REUSE_CONNSTR }}
-          ;;
-          *)
-          echo >&2 "Unknown target=${{ matrix.target }}"
-          exit 1
-          ;;
-        esac
-
-        CONNSTR_WITHOUT_POOLER="${CONNSTR//-pooler/}"
-
-        echo "connstr=${CONNSTR}" >> $GITHUB_OUTPUT
-        echo "connstr_without_pooler=${CONNSTR_WITHOUT_POOLER}" >> $GITHUB_OUTPUT
-
-    - name: pgbench with custom-scripts
-      uses: ./.github/actions/run-python-test-set
-      with:
-        build_type: ${{ env.BUILD_TYPE }}
-        test_selection: performance
-        run_in_parallel: false
-        save_perf_report: true
-        extra_params: -m remote_cluster --timeout 7200 -k test_perf_oltp_large_tenant_growth
-        pg_version: ${{ env.PG_VERSION }}
-        aws-oidc-role-arn: ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}
-      env:
-        BENCHMARK_CONNSTR: ${{ steps.set-up-connstr.outputs.connstr }}
-        VIP_VAP_ACCESS_TOKEN: "${{ secrets.VIP_VAP_ACCESS_TOKEN }}"
-        PERF_TEST_RESULT_CONNSTR: "${{ secrets.PERF_TEST_RESULT_CONNSTR }}"
-
-    - name: Create Allure report
-      id: create-allure-report
-      if: ${{ !cancelled() }}
-      uses: ./.github/actions/allure-report-generate
-      with:
-        aws-oidc-role-arn: ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}
-
-    - name: Post to a Slack channel
-      if: ${{ github.event.schedule && failure() }}
-      uses: slackapi/slack-github-action@fcfb566f8b0aab22203f066d80ca1d7e4b5d05b3 # v1.27.1
-      with:
-        channel-id: "C06KHQVQ7U3" # on-call-qa-staging-stream
-        slack-message: |
-          Periodic large oltp tenant growth increase: ${{ job.status }}
-          <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|GitHub Run>
-          <${{ steps.create-allure-report.outputs.report-url }}|Allure report>
-      env:
-        SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
--- a/.github/workflows/periodic_pagebench.yml
+++ b/.github/workflows/periodic_pagebench.yml
@@ -1,4 +1,4 @@
-name: Periodic pagebench performance test on unit-perf hetzner runner
+name: Periodic pagebench performance test on dedicated EC2 machine in eu-central-1 region

 on:
  schedule:
@@ -8,7 +8,7 @@ on:
    #        │   │ ┌───────────── day of the month (1 - 31)
    #        │   │ │ ┌───────────── month (1 - 12 or JAN-DEC)
    #        │   │ │ │ ┌───────────── day of the week (0 - 6 or SUN-SAT)
-    - cron: '0 */4 * * *' # Runs every 4 hours
+    - cron: '0 */3 * * *' # Runs every 3 hours
  workflow_dispatch: # Allows manual triggering of the workflow
    inputs:
      commit_hash:
@@ -16,11 +16,6 @@ on:
        description: 'The long neon repo commit hash for the system under test (pageserver) to be tested.'
        required: false
        default: ''
-      recreate_snapshots:
-        type: boolean
-        description: 'Recreate snapshots - !!!WARNING!!! We should only recreate snapshots if the previous ones are no longer compatible. Otherwise benchmarking results are not comparable across runs.'
-        required: false
-        default: false

 defaults:
  run:
@@ -34,13 +29,13 @@ permissions:
  contents: read

 jobs:
-  run_periodic_pagebench_test:
+  trigger_bench_on_ec2_machine_in_eu_central_1:
    permissions:
      id-token: write # aws-actions/configure-aws-credentials
      statuses: write
      contents: write
      pull-requests: write
-    runs-on: [ self-hosted, unit-perf ]
+    runs-on: [ self-hosted, small ]
    container:
      image: ghcr.io/neondatabase/build-tools:pinned-bookworm
      credentials:
@@ -49,13 +44,10 @@ jobs:
      options: --init
    timeout-minutes: 360  # Set the timeout to 6 hours
    env:
+      API_KEY: ${{ secrets.PERIODIC_PAGEBENCH_EC2_RUNNER_API_KEY }}
      RUN_ID: ${{ github.run_id }}
-      DEFAULT_PG_VERSION: 16
-      BUILD_TYPE: release
-      RUST_BACKTRACE: 1
-      # NEON_ENV_BUILDER_USE_OVERLAYFS_FOR_SNAPSHOTS: 1 - doesn't work without root in container
-      S3_BUCKET: neon-github-public-dev
-      PERF_TEST_RESULT_CONNSTR: "${{ secrets.PERF_TEST_RESULT_CONNSTR }}"
+      AWS_DEFAULT_REGION : "eu-central-1"
+      AWS_INSTANCE_ID : "i-02a59a3bf86bc7e74"
    steps:
    # we don't need the neon source code because we run everything remotely
    # however we still need the local github actions to run the allure step below
@@ -64,194 +56,99 @@ jobs:
      with:
        egress-policy: audit

-    - name: Set up the environment which depends on $RUNNER_TEMP on nvme drive
-      id: set-env
-      shell: bash -euxo pipefail {0}
-      run: |
-        {
-          echo "NEON_DIR=${RUNNER_TEMP}/neon"
-          echo "NEON_BIN=${RUNNER_TEMP}/neon/bin"
-          echo "POSTGRES_DISTRIB_DIR=${RUNNER_TEMP}/neon/pg_install"
-          echo "LD_LIBRARY_PATH=${RUNNER_TEMP}/neon/pg_install/v${DEFAULT_PG_VERSION}/lib"
-          echo "BACKUP_DIR=${RUNNER_TEMP}/instance_store/saved_snapshots"
-          echo "TEST_OUTPUT=${RUNNER_TEMP}/neon/test_output"
-          echo "PERF_REPORT_DIR=${RUNNER_TEMP}/neon/test_output/perf-report-local"
-          echo "ALLURE_DIR=${RUNNER_TEMP}/neon/test_output/allure-results"
-          echo "ALLURE_RESULTS_DIR=${RUNNER_TEMP}/neon/test_output/allure-results/results"
-        } >> "$GITHUB_ENV"
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

-        echo "allure_results_dir=${RUNNER_TEMP}/neon/test_output/allure-results/results" >> "$GITHUB_OUTPUT"
+    - name: Show my own (github runner) external IP address - usefull for IP allowlisting
+      run: curl https://ifconfig.me

-    - uses: aws-actions/configure-aws-credentials@e3dd6a429d7300a6a4c196c26e071d42e0343502 # v4.0.2
+    - name: Assume AWS OIDC role that allows to manage (start/stop/describe... EC machine)
+      uses: aws-actions/configure-aws-credentials@e3dd6a429d7300a6a4c196c26e071d42e0343502 # v4.0.2
      with:
        aws-region: eu-central-1
-        role-to-assume: ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}
-        role-duration-seconds: 18000 # max 5 hours (needed in case commit hash is still being built)
+        role-to-assume: ${{ vars.DEV_AWS_OIDC_ROLE_MANAGE_BENCHMARK_EC2_VMS_ARN }}
+        role-duration-seconds: 3600
+
+    - name: Start EC2 instance and wait for the instance to boot up
+      run: |
+        aws ec2 start-instances --instance-ids $AWS_INSTANCE_ID
+        aws ec2 wait instance-running --instance-ids $AWS_INSTANCE_ID
+        sleep 60 # sleep some time to allow cloudinit and our API server to start up
+
+    - name: Determine public IP of the EC2 instance and set env variable EC2_MACHINE_URL_US
+      run: |
+        public_ip=$(aws ec2 describe-instances --instance-ids $AWS_INSTANCE_ID --query 'Reservations[*].Instances[*].PublicIpAddress' --output text)
+        echo "Public IP of the EC2 instance: $public_ip"
+        echo "EC2_MACHINE_URL_US=https://${public_ip}:8443" >> $GITHUB_ENV
+
    - name: Determine commit hash
-      id: commit_hash
-      shell: bash -euxo pipefail {0}
      env:
        INPUT_COMMIT_HASH: ${{ github.event.inputs.commit_hash }}
      run: |
-        if [[ -z "${INPUT_COMMIT_HASH}" ]]; then
-          COMMIT_HASH=$(curl -s https://api.github.com/repos/neondatabase/neon/commits/main | jq -r '.sha')
-          echo "COMMIT_HASH=$COMMIT_HASH" >> $GITHUB_ENV
-          echo "commit_hash=$COMMIT_HASH" >> "$GITHUB_OUTPUT"
+        if [ -z "$INPUT_COMMIT_HASH" ]; then
+          echo "COMMIT_HASH=$(curl -s https://api.github.com/repos/neondatabase/neon/commits/main | jq -r '.sha')" >> $GITHUB_ENV
          echo "COMMIT_HASH_TYPE=latest" >> $GITHUB_ENV
        else
-          COMMIT_HASH="${INPUT_COMMIT_HASH}"
-          echo "COMMIT_HASH=$COMMIT_HASH" >> $GITHUB_ENV
-          echo "commit_hash=$COMMIT_HASH" >> "$GITHUB_OUTPUT"
+          echo "COMMIT_HASH=$INPUT_COMMIT_HASH" >> $GITHUB_ENV
          echo "COMMIT_HASH_TYPE=manual" >> $GITHUB_ENV
        fi
-    - name: Checkout the neon repository at given commit hash
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      with:
-        ref: ${{ steps.commit_hash.outputs.commit_hash }}

-    # does not reuse ./.github/actions/download because we need to download the artifact for the given commit hash
-    # example artifact
-    # s3://neon-github-public-dev/artifacts/48b870bc078bd2c450eb7b468e743b9c118549bf/15036827400/1/neon-Linux-X64-release-artifact.tar.zst /instance_store/artifacts/neon-Linux-release-artifact.tar.zst
-    - name: Determine artifact S3_KEY for given commit hash and download and extract artifact
-      id: artifact_prefix
-      shell: bash -euxo pipefail {0}
-      env:
-        ARCHIVE: ${{ runner.temp }}/downloads/neon-${{ runner.os }}-${{ runner.arch }}-release-artifact.tar.zst
-        COMMIT_HASH: ${{ env.COMMIT_HASH }}
-        COMMIT_HASH_TYPE: ${{ env.COMMIT_HASH_TYPE }}
+    - name: Start Bench with run_id
      run: |
-        attempt=0
-        max_attempts=24 # 5 minutes * 24 = 2 hours
+        curl -k -X 'POST' \
+        "${EC2_MACHINE_URL_US}/start_test/${GITHUB_RUN_ID}" \
+        -H 'accept: application/json' \
+        -H 'Content-Type: application/json' \
+        -H "Authorization: Bearer $API_KEY" \
+        -d "{\"neonRepoCommitHash\": \"${COMMIT_HASH}\", \"neonRepoCommitHashType\": \"${COMMIT_HASH_TYPE}\"}"

-        while [[ $attempt -lt $max_attempts ]]; do
-          # the following command will fail until the artifacts are available ...
-          S3_KEY=$(aws s3api list-objects-v2 --bucket "$S3_BUCKET" --prefix "artifacts/$COMMIT_HASH/" \
-            | jq -r '.Contents[]?.Key' \
-            | grep "neon-${{ runner.os }}-${{ runner.arch }}-release-artifact.tar.zst" \
-            | sort --version-sort \
-            | tail -1) || true # ... thus ignore errors from the command
-          if [[ -n "${S3_KEY}" ]]; then
-            echo "Artifact found: $S3_KEY"
-            echo "S3_KEY=$S3_KEY" >> $GITHUB_ENV
+    - name: Poll Test Status
+      id: poll_step
+      run: |
+        status=""
+        while [[ "$status" != "failure" && "$status" != "success" ]]; do
+          response=$(curl -k -X 'GET' \
+          "${EC2_MACHINE_URL_US}/test_status/${GITHUB_RUN_ID}" \
+          -H 'accept: application/json' \
+          -H "Authorization: Bearer $API_KEY")
+          echo "Response: $response"
+          set +x
+          status=$(echo $response | jq -r '.status')
+          echo "Test status: $status"
+          if [[ "$status" == "failure" ]]; then
+            echo "Test failed"
+            exit 1 # Fail the job step if status is failure
+          elif [[ "$status" == "success" || "$status" == "null" ]]; then
            break
+          elif [[ "$status" == "too_many_runs" ]]; then
+            echo "Too many runs already running"
+            echo "too_many_runs=true" >> "$GITHUB_OUTPUT"
+            exit 1
          fi
-          
-          # Increment attempt counter and sleep for 5 minutes
-          attempt=$((attempt + 1))
-          echo "Attempt $attempt of $max_attempts to find artifacts in S3 bucket s3://$S3_BUCKET/artifacts/$COMMIT_HASH failed. Retrying in 5 minutes..."
-          sleep 300 # Sleep for 5 minutes
+
+          sleep 60 # Poll every 60 seconds
        done

-        if [[ -z "${S3_KEY}" ]]; then
-          echo "Error: artifact not found in S3 bucket s3://$S3_BUCKET/artifacts/$COMMIT_HASH" after 2 hours
-        else
-          mkdir -p $(dirname $ARCHIVE)
-          time aws s3 cp --only-show-errors s3://$S3_BUCKET/${S3_KEY} ${ARCHIVE}
-          mkdir -p ${NEON_DIR}
-          time tar -xf ${ARCHIVE} -C ${NEON_DIR}
-          rm -f ${ARCHIVE}
-        fi
-
-    - name: Download snapshots from S3
-      if: ${{ github.event_name != 'workflow_dispatch' || github.event.inputs.recreate_snapshots == 'false' || github.event.inputs.recreate_snapshots == '' }}
-      id: download_snapshots
-      shell: bash -euxo pipefail {0}
+    - name: Retrieve Test Logs
+      if: always() && steps.poll_step.outputs.too_many_runs != 'true'
      run: |
-        # Download the snapshots from S3
-        mkdir -p ${TEST_OUTPUT}
-        mkdir -p $BACKUP_DIR
-        cd $BACKUP_DIR
-        mkdir parts
-        cd parts
-        PART=$(aws s3api list-objects-v2 --bucket $S3_BUCKET --prefix performance/pagebench/ \
-          | jq -r '.Contents[]?.Key' \
-          | grep -E 'shared-snapshots-[0-9]{4}-[0-9]{2}-[0-9]{2}' \
-          | sort \
-          | tail -1)
-        echo "Latest PART: $PART"
-        if [[ -z "$PART" ]]; then
-          echo "ERROR: No matching S3 key found" >&2
-          exit 1
-        fi
-        S3_KEY=$(dirname $PART)
-        time aws s3 cp --only-show-errors --recursive s3://${S3_BUCKET}/$S3_KEY/ .
-        cd $TEST_OUTPUT
-        time cat $BACKUP_DIR/parts/* | zstdcat | tar --extract --preserve-permissions
-        rm -rf ${BACKUP_DIR}
+        curl -k -X 'GET' \
+        "${EC2_MACHINE_URL_US}/test_log/${GITHUB_RUN_ID}" \
+        -H 'accept: application/gzip' \
+        -H "Authorization: Bearer $API_KEY" \
+        --output "test_log_${GITHUB_RUN_ID}.gz"

-    - name: Cache poetry deps
-      uses: actions/cache@v4
-      with:
-        path: ~/.cache/pypoetry/virtualenvs
-        key: v2-${{ runner.os }}-${{ runner.arch }}-python-deps-bookworm-${{ hashFiles('poetry.lock') }}
-
-    - name: Install Python deps
-      shell: bash -euxo pipefail {0}
-      run: ./scripts/pysync
-
-    # we need high number of open files for pagebench
-    - name: show ulimits
-      shell: bash -euxo pipefail {0}
+    - name: Unzip Test Log and Print it into this job's log
+      if: always() && steps.poll_step.outputs.too_many_runs != 'true'
      run: |
-        ulimit -a
-
-    - name: Run pagebench testcase
-      shell: bash -euxo pipefail {0}
-      env:
-        CI: false  # need to override this env variable set by github to enforce using snapshots
-      run: |
-        export PLATFORM=hetzner-unit-perf-${COMMIT_HASH_TYPE}
-        # report the commit hash of the neon repository in the revision of the test results
-        export GITHUB_SHA=${COMMIT_HASH}
-        rm -rf ${PERF_REPORT_DIR}
-        rm -rf ${ALLURE_RESULTS_DIR}
-        mkdir -p ${PERF_REPORT_DIR}
-        mkdir -p ${ALLURE_RESULTS_DIR}
-        PARAMS="--alluredir=${ALLURE_RESULTS_DIR} --tb=short --verbose -rA"
-        EXTRA_PARAMS="--out-dir ${PERF_REPORT_DIR} --durations-path $TEST_OUTPUT/benchmark_durations.json"
-        # run only two selected tests
-        # environment set by parent:
-        # RUST_BACKTRACE=1 DEFAULT_PG_VERSION=16 BUILD_TYPE=release
-        ./scripts/pytest ${PARAMS} test_runner/performance/pageserver/pagebench/test_pageserver_max_throughput_getpage_at_latest_lsn.py::test_pageserver_characterize_throughput_with_n_tenants ${EXTRA_PARAMS}
-        ./scripts/pytest ${PARAMS} test_runner/performance/pageserver/pagebench/test_pageserver_max_throughput_getpage_at_latest_lsn.py::test_pageserver_characterize_latencies_with_1_client_and_throughput_with_many_clients_one_tenant ${EXTRA_PARAMS}
-
-    - name: upload the performance metrics to the Neon performance database which is used by grafana dashboards to display the results
-      shell: bash -euxo pipefail {0}
-      run: |
-        export REPORT_FROM="$PERF_REPORT_DIR"
-        export GITHUB_SHA=${COMMIT_HASH}
-        time ./scripts/generate_and_push_perf_report.sh
-
-    - name: Upload test results
-      if: ${{ !cancelled() }}
-      uses: ./.github/actions/allure-report-store
-      with:
-        report-dir:  ${{ steps.set-env.outputs.allure_results_dir }}
-        unique-key: ${{ env.BUILD_TYPE }}-${{ env.DEFAULT_PG_VERSION }}-${{ runner.arch }}
-        aws-oidc-role-arn:  ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}
+        gzip -d "test_log_${GITHUB_RUN_ID}.gz"
+        cat "test_log_${GITHUB_RUN_ID}"

    - name: Create Allure report
-      id: create-allure-report
      if: ${{ !cancelled() }}
      uses: ./.github/actions/allure-report-generate
      with:
        aws-oidc-role-arn: ${{ vars.DEV_AWS_OIDC_ROLE_ARN }}

-    - name: Upload snapshots
-      if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.recreate_snapshots != 'false' && github.event.inputs.recreate_snapshots != '' }}
-      id: upload_snapshots
-      shell: bash -euxo pipefail {0}
-      run: |
-        mkdir -p $BACKUP_DIR
-        cd $TEST_OUTPUT
-        tar --create --preserve-permissions --file - shared-snapshots | zstd -o $BACKUP_DIR/shared_snapshots.tar.zst
-        cd $BACKUP_DIR
-        mkdir parts
-        split -b 1G shared_snapshots.tar.zst ./parts/shared_snapshots.tar.zst.part.
-        SNAPSHOT_DATE=$(date +%F)  # YYYY-MM-DD
-        cd parts
-        time aws s3 cp --recursive . s3://${S3_BUCKET}/performance/pagebench/shared-snapshots-${SNAPSHOT_DATE}/
-
    - name: Post to a Slack channel
      if: ${{ github.event.schedule && failure() }}
      uses: slackapi/slack-github-action@fcfb566f8b0aab22203f066d80ca1d7e4b5d05b3 # v1.27.1
@@ -260,22 +157,26 @@ jobs:
        slack-message: "Periodic pagebench testing on dedicated hardware: ${{ job.status }}\n${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
      env:
        SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
-        
+
    - name: Cleanup Test Resources
      if: always()
-      shell: bash -euxo pipefail {0}
-      env:
-        ARCHIVE: ${{ runner.temp }}/downloads/neon-${{ runner.os }}-${{ runner.arch }}-release-artifact.tar.zst
      run: |
-        # Cleanup the test resources
-        if [[ -d "${BACKUP_DIR}" ]]; then
-          rm -rf ${BACKUP_DIR}
-        fi
-        if [[ -d "${TEST_OUTPUT}" ]]; then
-          rm -rf ${TEST_OUTPUT}
-        fi
-        if [[ -d "${NEON_DIR}" ]]; then
-          rm -rf ${NEON_DIR}
-        fi
-        rm -rf $(dirname $ARCHIVE)
+        curl -k -X 'POST' \
+        "${EC2_MACHINE_URL_US}/cleanup_test/${GITHUB_RUN_ID}" \
+        -H 'accept: application/json' \
+        -H "Authorization: Bearer $API_KEY" \
+        -d ''

+    - name: Assume AWS OIDC role that allows to manage (start/stop/describe... EC machine)
+      if: always() && steps.poll_step.outputs.too_many_runs != 'true'
+      uses: aws-actions/configure-aws-credentials@e3dd6a429d7300a6a4c196c26e071d42e0343502 # v4.0.2
+      with:
+        aws-region: eu-central-1
+        role-to-assume: ${{ vars.DEV_AWS_OIDC_ROLE_MANAGE_BENCHMARK_EC2_VMS_ARN }}
+        role-duration-seconds: 3600
+
+    - name: Stop EC2 instance and wait for the instance to be stopped
+      if: always() && steps.poll_step.outputs.too_many_runs != 'true'
+      run: |
+        aws ec2 stop-instances --instance-ids $AWS_INSTANCE_ID
+        aws ec2 wait instance-stopped --instance-ids $AWS_INSTANCE_ID
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,4 @@
 /artifact_cache
-/build
 /pg_install
 /target
 /tmp_check
@@ -14,7 +13,6 @@ neon.iml
 /.neon
 /integration_tests/.neon
 compaction-suite-results.*
-pgxn/neon/communicator/communicator_bindings.h

 # Coverage
 *.profraw
--- a/Cargo.lock
+++ b/Cargo.lock
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,9 +8,7 @@ members = [
    "pageserver/compaction",
    "pageserver/ctl",
    "pageserver/client",
-    "pageserver/client_grpc",
    "pageserver/pagebench",
-    "pageserver/page_api",
    "proxy",
    "safekeeper",
    "safekeeper/client",
@@ -23,7 +21,6 @@ members = [
    "libs/http-utils",
    "libs/pageserver_api",
    "libs/postgres_ffi",
-    "libs/postgres_ffi_types",
    "libs/safekeeper_api",
    "libs/desim",
    "libs/neon-shmem",
@@ -34,7 +31,6 @@ members = [
    "libs/pq_proto",
    "libs/tenant_size_model",
    "libs/metrics",
-    "libs/neonart",
    "libs/postgres_connection",
    "libs/remote_storage",
    "libs/tracing-utils",
@@ -47,7 +43,6 @@ members = [
    "libs/proxy/postgres-types2",
    "libs/proxy/tokio-postgres2",
    "endpoint_storage",
-    "pgxn/neon/communicator",
 ]

 [workspace.package]
@@ -75,8 +70,8 @@ aws-credential-types = "1.2.0"
 aws-sigv4 = { version = "1.2", features = ["sign-http"] }
 aws-types = "1.3"
 axum = { version = "0.8.1", features = ["ws"] }
-axum-extra = { version = "0.10.0", features = ["typed-header", "query"] }
-base64 = "0.22"
+axum-extra = { version = "0.10.0", features = ["typed-header"] }
+base64 = "0.13.0"
 bincode = "1.3"
 bindgen = "0.71"
 bit_field = "0.10.2"
@@ -91,7 +86,6 @@ clap = { version = "4.0", features = ["derive", "env"] }
 clashmap = { version = "1.0", features = ["raw-api"] }
 comfy-table = "7.1"
 const_format = "0.2"
-crossbeam-utils = "0.8.21"
 crc32c = "0.6"
 diatomic-waker = { version = "0.2.3" }
 either = "1.8"
@@ -150,12 +144,11 @@ parquet = { version = "53", default-features = false, features = ["zstd"] }
 parquet_derive = "53"
 pbkdf2 = { version = "0.12.1", features = ["simple", "std"] }
 pem = "3.0.3"
-peekable = "0.3.0"
 pin-project-lite = "0.2"
 pprof = { version = "0.14", features = ["criterion", "flamegraph", "frame-pointer", "prost-codec"] }
 procfs = "0.16"
 prometheus = {version = "0.13", default-features=false, features = ["process"]} # removes protobuf dependency
-prost = "0.13.5"
+prost = "0.13"
 rand = "0.8"
 redis = { version = "0.29.2", features = ["tokio-rustls-comp", "keep-alive"] }
 regex = "1.10.2"
@@ -177,7 +170,7 @@ sentry = { version = "0.37", default-features = false, features = ["backtrace",
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1"
 serde_path_to_error = "0.1"
-serde_with = { version = "3", features = [ "base64" ] }
+serde_with = { version = "2.0", features = [ "base64" ] }
 serde_assert = "0.5.0"
 sha2 = "0.10.2"
 signal-hook = "0.3"
@@ -185,7 +178,6 @@ smallvec = "1.11"
 smol_str = { version = "0.2.0", features = ["serde"] }
 socket2 = "0.5"
 spki = "0.7.3"
-spin = "0.9.8"
 strum = "0.26"
 strum_macros = "0.26"
 "subtle"  = "2.5.0"
@@ -197,16 +189,16 @@ thiserror = "1.0"
 tikv-jemallocator = { version = "0.6", features = ["profiling", "stats", "unprefixed_malloc_on_supported_platforms"] }
 tikv-jemalloc-ctl = { version = "0.6", features = ["stats"] }
 tokio = { version = "1.43.1", features = ["macros"] }
+tokio-epoll-uring = { git = "https://github.com/neondatabase/tokio-epoll-uring.git" , branch = "main" }
 tokio-io-timeout = "1.2.0"
 tokio-postgres-rustls = "0.12.0"
 tokio-rustls = { version = "0.26.0", default-features = false, features = ["tls12", "ring"]}
 tokio-stream = "0.1"
 tokio-tar = "0.3"
-tokio-util = { version = "0.7.10", features = ["io", "io-util", "rt"] }
+tokio-util = { version = "0.7.10", features = ["io", "rt"] }
 toml = "0.8"
 toml_edit = "0.22"
-tonic = { version = "0.13.1", default-features = false, features = ["channel", "codegen", "gzip", "prost", "router", "server", "tls-ring", "tls-native-roots", "zstd"] }
-tonic-reflection = { version = "0.13.1", features = ["server"] }
+tonic = {version = "0.12.3", default-features = false, features = ["channel", "tls", "tls-roots"]}
 tower = { version = "0.5.2", default-features = false }
 tower-http = { version = "0.6.2", features = ["auth", "request-id", "trace"] }

@@ -238,9 +230,6 @@ x509-cert = { version = "0.2.5" }
 env_logger = "0.11"
 log = "0.4"

-tokio-epoll-uring = { git = "https://github.com/neondatabase/tokio-epoll-uring.git" , branch = "main" }
-uring-common = { git = "https://github.com/neondatabase/tokio-epoll-uring.git" , branch = "main" }
-
 ## Libraries from neondatabase/ git forks, ideally with changes to be upstreamed
 postgres = { git = "https://github.com/neondatabase/rust-postgres.git", branch = "neon" }
 postgres-protocol = { git = "https://github.com/neondatabase/rust-postgres.git", branch = "neon" }
@@ -256,47 +245,40 @@ azure_storage_blobs = { git = "https://github.com/neondatabase/azure-sdk-for-rus
 ## Local libraries
 compute_api = { version = "0.1", path = "./libs/compute_api/" }
 consumption_metrics = { version = "0.1", path = "./libs/consumption_metrics/" }
-desim = { version = "0.1", path = "./libs/desim" }
 endpoint_storage = { version = "0.0.1", path = "./endpoint_storage/" }
 http-utils = { version = "0.1", path = "./libs/http-utils/" }
 metrics = { version = "0.1", path = "./libs/metrics/" }
-neonart = { version = "0.1", path = "./libs/neonart/" }
-neon-shmem = { version = "0.1", path = "./libs/neon-shmem/" }
 pageserver = { path = "./pageserver" }
 pageserver_api = { version = "0.1", path = "./libs/pageserver_api/" }
 pageserver_client = { path = "./pageserver/client" }
-pageserver_client_grpc = { path = "./pageserver/client_grpc" }
 pageserver_compaction = { version = "0.1", path = "./pageserver/compaction/" }
-pageserver_page_api = { path = "./pageserver/page_api" }
 postgres_backend = { version = "0.1", path = "./libs/postgres_backend/" }
 postgres_connection = { version = "0.1", path = "./libs/postgres_connection/" }
 postgres_ffi = { version = "0.1", path = "./libs/postgres_ffi/" }
-postgres_ffi_types = { version = "0.1", path = "./libs/postgres_ffi_types/" }
 postgres_initdb = { path = "./libs/postgres_initdb" }
-posthog_client_lite = { version = "0.1", path = "./libs/posthog_client_lite" }
 pq_proto = { version = "0.1", path = "./libs/pq_proto/" }
 remote_storage = { version = "0.1", path = "./libs/remote_storage/" }
 safekeeper_api = { version = "0.1", path = "./libs/safekeeper_api" }
 safekeeper_client = { path = "./safekeeper/client" }
+desim = { version = "0.1", path = "./libs/desim" }
 storage_broker = { version = "0.1", path = "./storage_broker/" } # Note: main broker code is inside the binary crate, so linking with the library shouldn't be heavy.
 storage_controller_client = { path = "./storage_controller/client" }
 tenant_size_model = { version = "0.1", path = "./libs/tenant_size_model/" }
 tracing-utils = { version = "0.1", path = "./libs/tracing-utils/" }
 utils = { version = "0.1", path = "./libs/utils/" }
 vm_monitor = { version = "0.1", path = "./libs/vm_monitor/" }
-wal_decoder = { version = "0.1", path = "./libs/wal_decoder" }
 walproposer = { version = "0.1", path = "./libs/walproposer/" }
+wal_decoder = { version = "0.1", path = "./libs/wal_decoder" }

 ## Common library dependency
 workspace_hack = { version = "0.1", path = "./workspace_hack/" }

 ## Build dependencies
-cbindgen = "0.28.0"
 criterion = "0.5.1"
 rcgen = "0.13"
 rstest = "0.18"
 camino-tempfile = "1.0.2"
-tonic-build = "0.13.1"
+tonic-build = "0.12"

 [patch.crates-io]

--- a/22
+++ b/22
@@ -5,6 +5,8 @@
 ARG REPOSITORY=ghcr.io/neondatabase
 ARG IMAGE=build-tools
 ARG TAG=pinned
+ARG DEFAULT_PG_VERSION=17
+ARG STABLE_PG_VERSION=16
 ARG DEBIAN_VERSION=bookworm
 ARG DEBIAN_FLAVOR=${DEBIAN_VERSION}-slim

@@ -45,6 +47,7 @@ COPY --chown=nonroot scripts/ninstall.sh scripts/ninstall.sh
 ENV BUILD_TYPE=release
 RUN set -e \
    && mold -run make -j $(nproc) -s neon-pg-ext \
+    && rm -rf pg_install/build \
    && tar -C pg_install -czf /home/nonroot/postgres_install.tar.gz .

 # Prepare cargo-chef recipe
@@ -60,11 +63,14 @@ FROM $REPOSITORY/$IMAGE:$TAG AS build
 WORKDIR /home/nonroot
 ARG GIT_VERSION=local
 ARG BUILD_TAG
+ARG STABLE_PG_VERSION

 COPY --from=pg-build /home/nonroot/pg_install/v14/include/postgresql/server pg_install/v14/include/postgresql/server
 COPY --from=pg-build /home/nonroot/pg_install/v15/include/postgresql/server pg_install/v15/include/postgresql/server
 COPY --from=pg-build /home/nonroot/pg_install/v16/include/postgresql/server pg_install/v16/include/postgresql/server
 COPY --from=pg-build /home/nonroot/pg_install/v17/include/postgresql/server pg_install/v17/include/postgresql/server
+COPY --from=pg-build /home/nonroot/pg_install/v16/lib                       pg_install/v16/lib
+COPY --from=pg-build /home/nonroot/pg_install/v17/lib                       pg_install/v17/lib
 COPY --from=plan     /home/nonroot/recipe.json                              recipe.json

 ARG ADDITIONAL_RUSTFLAGS=""
@@ -91,6 +97,7 @@ RUN set -e \
 # Build final image
 #
 FROM $BASE_IMAGE_SHA
+ARG DEFAULT_PG_VERSION
 WORKDIR /data

 RUN set -e \
@@ -100,20 +107,9 @@ RUN set -e \
        libreadline-dev \
        libseccomp-dev \
        ca-certificates \
+	# System postgres for use with client libraries (e.g. in storage controller)
+        postgresql-15 \
        openssl \
-        unzip \
-        curl \
-    && ARCH=$(uname -m) \
-    && if [ "$ARCH" = "x86_64" ]; then \
-        curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"; \
-    elif [ "$ARCH" = "aarch64" ]; then \
-        curl "https://awscli.amazonaws.com/awscli-exe-linux-aarch64.zip" -o "awscliv2.zip"; \
-    else \
-        echo "Unsupported architecture: $ARCH" && exit 1; \
-    fi \
-    && unzip awscliv2.zip \
-    && ./aws/install \
-    && rm -rf aws awscliv2.zip \
    && rm -f /etc/apt/apt.conf.d/80-retries \
    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
    && useradd -d /data neon \
--- a/172
+++ b/172
@@ -1,18 +1,8 @@
 ROOT_PROJECT_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))

-# Where to install Postgres, default is ./pg_install, maybe useful for package
-# managers.
+# Where to install Postgres, default is ./pg_install, maybe useful for package managers
 POSTGRES_INSTALL_DIR ?= $(ROOT_PROJECT_DIR)/pg_install/

-# CARGO_BUILD_FLAGS: Extra flags to pass to `cargo build`. `--locked`
-# and `--features testing` are popular examples.
-#
-# CARGO_PROFILE: You can also set to override the cargo profile to
-# use. By default, it is derived from BUILD_TYPE.
-
-# All intermediate build artifacts are stored here.
-BUILD_DIR := build
-
 ICU_PREFIX_DIR := /usr/local/icu

 #
@@ -26,19 +16,12 @@ ifeq ($(BUILD_TYPE),release)
 	PG_CONFIGURE_OPTS = --enable-debug --with-openssl
 	PG_CFLAGS += -O2 -g3 $(CFLAGS)
 	PG_LDFLAGS = $(LDFLAGS)
-	CARGO_PROFILE ?= --profile=release
-	# NEON_CARGO_ARTIFACT_TARGET_DIR is the directory where `cargo build` places
-	# the final build artifacts. There is unfortunately no easy way of changing
-	# it to a fully predictable path, nor to extract the path with a simple
-	# command. See https://github.com/rust-lang/cargo/issues/9661 and
-	# https://github.com/rust-lang/cargo/issues/6790.
-	NEON_CARGO_ARTIFACT_TARGET_DIR = $(ROOT_PROJECT_DIR)/target/release
+	# Unfortunately, `--profile=...` is a nightly feature
+	CARGO_BUILD_FLAGS += --release
 else ifeq ($(BUILD_TYPE),debug)
 	PG_CONFIGURE_OPTS = --enable-debug --with-openssl --enable-cassert --enable-depend
 	PG_CFLAGS += -O0 -g3 $(CFLAGS)
 	PG_LDFLAGS = $(LDFLAGS)
-	CARGO_PROFILE ?= --profile=dev
-	NEON_CARGO_ARTIFACT_TARGET_DIR = $(ROOT_PROJECT_DIR)/target/debug
 else
 	$(error Bad build type '$(BUILD_TYPE)', see Makefile for options)
 endif
@@ -110,8 +93,7 @@ all: neon postgres neon-pg-ext
 .PHONY: neon
 neon: postgres-headers walproposer-lib cargo-target-dir
 	+@echo "Compiling Neon"
-	$(CARGO_CMD_PREFIX) cargo build $(CARGO_BUILD_FLAGS) $(CARGO_PROFILE)
-
+	$(CARGO_CMD_PREFIX) cargo build $(CARGO_BUILD_FLAGS)
 .PHONY: cargo-target-dir
 cargo-target-dir:
 	# https://github.com/rust-lang/cargo/issues/14281
@@ -122,20 +104,21 @@ cargo-target-dir:
 # Some rules are duplicated for Postgres v14 and 15. We may want to refactor
 # to avoid the duplication in the future, but it's tolerable for now.
 #
-$(BUILD_DIR)/%/config.status:
-	mkdir -p $(BUILD_DIR)
-	test -e $(BUILD_DIR)/CACHEDIR.TAG || echo "$(CACHEDIR_TAG_CONTENTS)" > $(BUILD_DIR)/CACHEDIR.TAG
+$(POSTGRES_INSTALL_DIR)/build/%/config.status:
+
+	mkdir -p $(POSTGRES_INSTALL_DIR)
+	test -e $(POSTGRES_INSTALL_DIR)/CACHEDIR.TAG || echo "$(CACHEDIR_TAG_CONTENTS)" > $(POSTGRES_INSTALL_DIR)/CACHEDIR.TAG

 	+@echo "Configuring Postgres $* build"
 	@test -s $(ROOT_PROJECT_DIR)/vendor/postgres-$*/configure || { \
 		echo "\nPostgres submodule not found in $(ROOT_PROJECT_DIR)/vendor/postgres-$*/, execute "; \
 		echo "'git submodule update --init --recursive --depth 2 --progress .' in project root.\n"; \
 		exit 1; }
-	mkdir -p $(BUILD_DIR)/$*
+	mkdir -p $(POSTGRES_INSTALL_DIR)/build/$*

 	VERSION=$*; \
 	EXTRA_VERSION=$$(cd $(ROOT_PROJECT_DIR)/vendor/postgres-$$VERSION && git rev-parse HEAD); \
-	(cd $(BUILD_DIR)/$$VERSION && \
+	(cd $(POSTGRES_INSTALL_DIR)/build/$$VERSION && \
 	env PATH="$(EXTRA_PATH_OVERRIDES):$$PATH" $(ROOT_PROJECT_DIR)/vendor/postgres-$$VERSION/configure \
 		CFLAGS='$(PG_CFLAGS)' LDFLAGS='$(PG_LDFLAGS)' \
 		$(PG_CONFIGURE_OPTS) --with-extra-version=" ($$EXTRA_VERSION)" \
@@ -147,57 +130,96 @@ $(BUILD_DIR)/%/config.status:
 # the "build-all-versions" entry points) where direct mention of PostgreSQL
 # versions is used.
 .PHONY: postgres-configure-v17
-postgres-configure-v17: $(BUILD_DIR)/v17/config.status
+postgres-configure-v17: $(POSTGRES_INSTALL_DIR)/build/v17/config.status
 .PHONY: postgres-configure-v16
-postgres-configure-v16: $(BUILD_DIR)/v16/config.status
+postgres-configure-v16: $(POSTGRES_INSTALL_DIR)/build/v16/config.status
 .PHONY: postgres-configure-v15
-postgres-configure-v15: $(BUILD_DIR)/v15/config.status
+postgres-configure-v15: $(POSTGRES_INSTALL_DIR)/build/v15/config.status
 .PHONY: postgres-configure-v14
-postgres-configure-v14: $(BUILD_DIR)/v14/config.status
+postgres-configure-v14: $(POSTGRES_INSTALL_DIR)/build/v14/config.status

 # Install the PostgreSQL header files into $(POSTGRES_INSTALL_DIR)/<version>/include
 .PHONY: postgres-headers-%
 postgres-headers-%: postgres-configure-%
 	+@echo "Installing PostgreSQL $* headers"
-	$(MAKE) -C $(BUILD_DIR)/$*/src/include MAKELEVEL=0 install
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/src/include MAKELEVEL=0 install

 # Compile and install PostgreSQL
 .PHONY: postgres-%
 postgres-%: postgres-configure-% \
 		  postgres-headers-% # to prevent `make install` conflicts with neon's `postgres-headers`
 	+@echo "Compiling PostgreSQL $*"
-	$(MAKE) -C $(BUILD_DIR)/$* MAKELEVEL=0 install
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$* MAKELEVEL=0 install
 	+@echo "Compiling libpq $*"
-	$(MAKE) -C $(BUILD_DIR)/$*/src/interfaces/libpq install
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/src/interfaces/libpq install
 	+@echo "Compiling pg_prewarm $*"
-	$(MAKE) -C $(BUILD_DIR)/$*/contrib/pg_prewarm install
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pg_prewarm install
 	+@echo "Compiling pg_buffercache $*"
-	$(MAKE) -C $(BUILD_DIR)/$*/contrib/pg_buffercache install
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pg_buffercache install
 	+@echo "Compiling pg_visibility $*"
-	$(MAKE) -C $(BUILD_DIR)/$*/contrib/pg_visibility install
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pg_visibility install
 	+@echo "Compiling pageinspect $*"
-	$(MAKE) -C $(BUILD_DIR)/$*/contrib/pageinspect install
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pageinspect install
 	+@echo "Compiling pg_trgm $*"
-	$(MAKE) -C $(BUILD_DIR)/$*/contrib/pg_trgm install
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pg_trgm install
 	+@echo "Compiling amcheck $*"
-	$(MAKE) -C $(BUILD_DIR)/$*/contrib/amcheck install
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/amcheck install
 	+@echo "Compiling test_decoding $*"
-	$(MAKE) -C $(BUILD_DIR)/$*/contrib/test_decoding install
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/test_decoding install
+
+.PHONY: postgres-clean-%
+postgres-clean-%:
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$* MAKELEVEL=0 clean
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pg_buffercache clean
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/contrib/pageinspect clean
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/src/interfaces/libpq clean

 .PHONY: postgres-check-%
 postgres-check-%: postgres-%
-	$(MAKE) -C $(BUILD_DIR)/$* MAKELEVEL=0 check
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$* MAKELEVEL=0 check

 .PHONY: neon-pg-ext-%
-neon-pg-ext-%: postgres-% cargo-target-dir
-	+@echo "Compiling neon-specific Postgres extensions for $*"
-	mkdir -p $(BUILD_DIR)/pgxn-$*
-	$(MAKE) PG_CONFIG="$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config" COPT='$(COPT)' \
-		NEON_CARGO_ARTIFACT_TARGET_DIR="$(NEON_CARGO_ARTIFACT_TARGET_DIR)" \
-		CARGO_BUILD_FLAGS="$(CARGO_BUILD_FLAGS)" \
-		CARGO_PROFILE="$(CARGO_PROFILE)" \
-		-C $(BUILD_DIR)/pgxn-$*\
-		-f $(ROOT_PROJECT_DIR)/pgxn/Makefile  install
+neon-pg-ext-%: postgres-%
+	+@echo "Compiling neon $*"
+	mkdir -p $(POSTGRES_INSTALL_DIR)/build/neon-$*
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config COPT='$(COPT)' \
+		-C $(POSTGRES_INSTALL_DIR)/build/neon-$* \
+		-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile install
+	+@echo "Compiling neon_walredo $*"
+	mkdir -p $(POSTGRES_INSTALL_DIR)/build/neon-walredo-$*
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config COPT='$(COPT)' \
+		-C $(POSTGRES_INSTALL_DIR)/build/neon-walredo-$* \
+		-f $(ROOT_PROJECT_DIR)/pgxn/neon_walredo/Makefile install
+	+@echo "Compiling neon_rmgr $*"
+	mkdir -p $(POSTGRES_INSTALL_DIR)/build/neon-rmgr-$*
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config COPT='$(COPT)' \
+		-C $(POSTGRES_INSTALL_DIR)/build/neon-rmgr-$* \
+		-f $(ROOT_PROJECT_DIR)/pgxn/neon_rmgr/Makefile install
+	+@echo "Compiling neon_test_utils $*"
+	mkdir -p $(POSTGRES_INSTALL_DIR)/build/neon-test-utils-$*
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config COPT='$(COPT)' \
+		-C $(POSTGRES_INSTALL_DIR)/build/neon-test-utils-$* \
+		-f $(ROOT_PROJECT_DIR)/pgxn/neon_test_utils/Makefile install
+	+@echo "Compiling neon_utils $*"
+	mkdir -p $(POSTGRES_INSTALL_DIR)/build/neon-utils-$*
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config COPT='$(COPT)' \
+		-C $(POSTGRES_INSTALL_DIR)/build/neon-utils-$* \
+		-f $(ROOT_PROJECT_DIR)/pgxn/neon_utils/Makefile install
+
+.PHONY: neon-pg-clean-ext-%
+neon-pg-clean-ext-%:
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config \
+	-C $(POSTGRES_INSTALL_DIR)/build/neon-$* \
+	-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile clean
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config \
+	-C $(POSTGRES_INSTALL_DIR)/build/neon-walredo-$* \
+	-f $(ROOT_PROJECT_DIR)/pgxn/neon_walredo/Makefile clean
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config \
+	-C $(POSTGRES_INSTALL_DIR)/build/neon-test-utils-$* \
+	-f $(ROOT_PROJECT_DIR)/pgxn/neon_test_utils/Makefile clean
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/$*/bin/pg_config \
+	-C $(POSTGRES_INSTALL_DIR)/build/neon-utils-$* \
+	-f $(ROOT_PROJECT_DIR)/pgxn/neon_utils/Makefile clean

 # Build walproposer as a static library. walproposer source code is located
 # in the pgxn/neon directory.
@@ -211,15 +233,15 @@ neon-pg-ext-%: postgres-% cargo-target-dir
 .PHONY: walproposer-lib
 walproposer-lib: neon-pg-ext-v17
 	+@echo "Compiling walproposer-lib"
-	mkdir -p $(BUILD_DIR)/walproposer-lib
+	mkdir -p $(POSTGRES_INSTALL_DIR)/build/walproposer-lib
 	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v17/bin/pg_config COPT='$(COPT)' \
-		-C $(BUILD_DIR)/walproposer-lib \
+		-C $(POSTGRES_INSTALL_DIR)/build/walproposer-lib \
 		-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile walproposer-lib
-	cp $(POSTGRES_INSTALL_DIR)/v17/lib/libpgport.a $(BUILD_DIR)/walproposer-lib
-	cp $(POSTGRES_INSTALL_DIR)/v17/lib/libpgcommon.a $(BUILD_DIR)/walproposer-lib
-	$(AR) d $(BUILD_DIR)/walproposer-lib/libpgport.a \
+	cp $(POSTGRES_INSTALL_DIR)/v17/lib/libpgport.a $(POSTGRES_INSTALL_DIR)/build/walproposer-lib
+	cp $(POSTGRES_INSTALL_DIR)/v17/lib/libpgcommon.a $(POSTGRES_INSTALL_DIR)/build/walproposer-lib
+	$(AR) d $(POSTGRES_INSTALL_DIR)/build/walproposer-lib/libpgport.a \
 		pg_strong_random.o
-	$(AR) d $(BUILD_DIR)/walproposer-lib/libpgcommon.a \
+	$(AR) d $(POSTGRES_INSTALL_DIR)/build/walproposer-lib/libpgcommon.a \
 		checksum_helper.o \
 		cryptohash_openssl.o \
 		hmac_openssl.o \
@@ -227,10 +249,16 @@ walproposer-lib: neon-pg-ext-v17
 		parse_manifest.o \
 		scram-common.o
 ifeq ($(UNAME_S),Linux)
-	$(AR) d $(BUILD_DIR)/walproposer-lib/libpgcommon.a \
+	$(AR) d $(POSTGRES_INSTALL_DIR)/build/walproposer-lib/libpgcommon.a \
 		pg_crc32c.o
 endif

+.PHONY: walproposer-lib-clean
+walproposer-lib-clean:
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v17/bin/pg_config \
+		-C $(POSTGRES_INSTALL_DIR)/build/walproposer-lib \
+		-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile clean
+
 .PHONY: neon-pg-ext
 neon-pg-ext: \
 	neon-pg-ext-v14 \
@@ -238,6 +266,13 @@ neon-pg-ext: \
 	neon-pg-ext-v16 \
 	neon-pg-ext-v17

+.PHONY: neon-pg-clean-ext
+neon-pg-clean-ext: \
+	neon-pg-clean-ext-v14 \
+	neon-pg-clean-ext-v15 \
+	neon-pg-clean-ext-v16 \
+	neon-pg-clean-ext-v17
+
 # shorthand to build all Postgres versions
 .PHONY: postgres
 postgres: \
@@ -253,6 +288,13 @@ postgres-headers: \
 	postgres-headers-v16 \
 	postgres-headers-v17

+.PHONY: postgres-clean
+postgres-clean: \
+	postgres-clean-v14 \
+	postgres-clean-v15 \
+	postgres-clean-v16 \
+	postgres-clean-v17
+
 .PHONY: postgres-check
 postgres-check: \
 	postgres-check-v14 \
@@ -260,6 +302,12 @@ postgres-check: \
 	postgres-check-v16 \
 	postgres-check-v17

+# This doesn't remove the effects of 'configure'.
+.PHONY: clean
+clean: postgres-clean neon-pg-clean-ext
+	$(MAKE) -C compute clean
+	$(CARGO_CMD_PREFIX) cargo clean
+
 # This removes everything
 .PHONY: distclean
 distclean:
@@ -272,7 +320,7 @@ fmt:

 postgres-%-pg-bsd-indent: postgres-%
 	+@echo "Compiling pg_bsd_indent"
-	$(MAKE) -C $(BUILD_DIR)/$*/src/tools/pg_bsd_indent/
+	$(MAKE) -C $(POSTGRES_INSTALL_DIR)/build/$*/src/tools/pg_bsd_indent/

 # Create typedef list for the core. Note that generally it should be combined with
 # buildfarm one to cover platform specific stuff.
@@ -291,7 +339,7 @@ postgres-%-pgindent: postgres-%-pg-bsd-indent postgres-%-typedefs.list
 	cat $(ROOT_PROJECT_DIR)/vendor/postgres-$*/src/tools/pgindent/typedefs.list |\
 		cat - postgres-$*-typedefs.list | sort | uniq > postgres-$*-typedefs-full.list
 	+@echo note: you might want to run it on selected files/dirs instead.
-	INDENT=$(BUILD_DIR)/$*/src/tools/pg_bsd_indent/pg_bsd_indent \
+	INDENT=$(POSTGRES_INSTALL_DIR)/build/$*/src/tools/pg_bsd_indent/pg_bsd_indent \
 		$(ROOT_PROJECT_DIR)/vendor/postgres-$*/src/tools/pgindent/pgindent --typedefs postgres-$*-typedefs-full.list \
 		$(ROOT_PROJECT_DIR)/vendor/postgres-$*/src/ \
 		--excludes $(ROOT_PROJECT_DIR)/vendor/postgres-$*/src/tools/pgindent/exclude_file_patterns
@@ -302,9 +350,9 @@ postgres-%-pgindent: postgres-%-pg-bsd-indent postgres-%-typedefs.list
 neon-pgindent: postgres-v17-pg-bsd-indent neon-pg-ext-v17
 	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v17/bin/pg_config COPT='$(COPT)' \
 		FIND_TYPEDEF=$(ROOT_PROJECT_DIR)/vendor/postgres-v17/src/tools/find_typedef \
-		INDENT=$(BUILD_DIR)/v17/src/tools/pg_bsd_indent/pg_bsd_indent \
+		INDENT=$(POSTGRES_INSTALL_DIR)/build/v17/src/tools/pg_bsd_indent/pg_bsd_indent \
 		PGINDENT_SCRIPT=$(ROOT_PROJECT_DIR)/vendor/postgres-v17/src/tools/pgindent/pgindent \
-		-C $(BUILD_DIR)/neon-v17 \
+		-C $(POSTGRES_INSTALL_DIR)/build/neon-v17 \
 		-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile pgindent


--- a/build-tools.Dockerfile
+++ b/build-tools.Dockerfile
@@ -155,7 +155,7 @@ RUN set -e \

 # Keep the version the same as in compute/compute-node.Dockerfile and
 # test_runner/regress/test_compute_metrics.py.
-ENV SQL_EXPORTER_VERSION=0.17.3
+ENV SQL_EXPORTER_VERSION=0.17.0
 RUN curl -fsSL \
    "https://github.com/burningalchemist/sql_exporter/releases/download/${SQL_EXPORTER_VERSION}/sql_exporter-${SQL_EXPORTER_VERSION}.linux-$(case "$(uname -m)" in x86_64) echo amd64;; aarch64) echo arm64;; esac).tar.gz" \
    --output sql_exporter.tar.gz \
@@ -310,13 +310,13 @@ RUN curl -sSO https://static.rust-lang.org/rustup/dist/$(uname -m)-unknown-linux
    . "$HOME/.cargo/env" && \
    cargo --version && rustup --version && \
    rustup component add llvm-tools rustfmt clippy && \
-    cargo install rustfilt            --version ${RUSTFILT_VERSION} --locked && \
-    cargo install cargo-hakari        --version ${CARGO_HAKARI_VERSION} --locked && \
-    cargo install cargo-deny          --version ${CARGO_DENY_VERSION} --locked && \
-    cargo install cargo-hack          --version ${CARGO_HACK_VERSION} --locked && \
-    cargo install cargo-nextest       --version ${CARGO_NEXTEST_VERSION} --locked && \
-    cargo install cargo-chef          --version ${CARGO_CHEF_VERSION} --locked && \
-    cargo install diesel_cli          --version ${CARGO_DIESEL_CLI_VERSION} --locked \
+    cargo install rustfilt            --version ${RUSTFILT_VERSION} && \
+    cargo install cargo-hakari        --version ${CARGO_HAKARI_VERSION} && \
+    cargo install cargo-deny --locked --version ${CARGO_DENY_VERSION} && \
+    cargo install cargo-hack          --version ${CARGO_HACK_VERSION} && \
+    cargo install cargo-nextest       --version ${CARGO_NEXTEST_VERSION} && \
+    cargo install cargo-chef --locked --version ${CARGO_CHEF_VERSION} && \
+    cargo install diesel_cli          --version ${CARGO_DIESEL_CLI_VERSION} \
                                      --features postgres-bundled --no-default-features && \
    rm -rf /home/nonroot/.cargo/registry && \
    rm -rf /home/nonroot/.cargo/git
--- a/compute/.gitignore
+++ b/compute/.gitignore
@@ -3,6 +3,3 @@ etc/neon_collector.yml
 etc/neon_collector_autoscaling.yml
 etc/sql_exporter.yml
 etc/sql_exporter_autoscaling.yml
-
-# Node.js dependencies
-node_modules/
--- a/compute/Makefile
+++ b/compute/Makefile
@@ -48,11 +48,3 @@ jsonnetfmt-test:
 .PHONY: jsonnetfmt-format
 jsonnetfmt-format:
 	jsonnetfmt --in-place $(jsonnet_files)
-
-.PHONY: manifest-schema-validation
-manifest-schema-validation: node_modules
-	node_modules/.bin/jsonschema validate -d https://json-schema.org/draft/2020-12/schema manifest.schema.json manifest.yaml
-
-node_modules: package.json
-	npm install
-	touch node_modules
--- a/compute/compute-node.Dockerfile
+++ b/compute/compute-node.Dockerfile
@@ -77,6 +77,9 @@
 # build_and_test.yml github workflow for how that's done.

 ARG PG_VERSION
+ARG REPOSITORY=ghcr.io/neondatabase
+ARG IMAGE=build-tools
+ARG TAG=pinned
 ARG BUILD_TAG
 ARG DEBIAN_VERSION=bookworm
 ARG DEBIAN_FLAVOR=${DEBIAN_VERSION}-slim
@@ -146,11 +149,8 @@ RUN case $DEBIAN_VERSION in \
    ninja-build git autoconf automake libtool build-essential bison flex libreadline-dev \
    zlib1g-dev libxml2-dev libcurl4-openssl-dev libossp-uuid-dev wget ca-certificates pkg-config libssl-dev \
    libicu-dev libxslt1-dev liblz4-dev libzstd-dev zstd curl unzip g++ \
-    libclang-dev \
-    jsonnet \
    $VERSION_INSTALLS \
-    && apt clean && rm -rf /var/lib/apt/lists/* && \
-    useradd -ms /bin/bash nonroot -b /home
+    && apt clean && rm -rf /var/lib/apt/lists/*

 #########################################################################################
 #
@@ -297,7 +297,6 @@ RUN ./autogen.sh && \
    ./configure --with-sfcgal=/usr/local/bin/sfcgal-config && \
    make -j $(getconf _NPROCESSORS_ONLN) && \
    make -j $(getconf _NPROCESSORS_ONLN) install && \
-    make staged-install && \
    cd extensions/postgis && \
    make clean && \
    make -j $(getconf _NPROCESSORS_ONLN) install && \
@@ -583,38 +582,6 @@ RUN make -j $(getconf _NPROCESSORS_ONLN) && \
    make -j $(getconf _NPROCESSORS_ONLN) install && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/hypopg.control

-#########################################################################################
-#
-# Layer "online_advisor-build"
-# compile online_advisor extension
-#
-#########################################################################################
-FROM build-deps AS online_advisor-src
-ARG PG_VERSION
-
-# online_advisor supports all Postgres version starting from PG14, but prior to PG17 has to be included in preload_shared_libraries
-# last release 1.0 - May 15, 2025
-WORKDIR /ext-src
-RUN case "${PG_VERSION:?}" in \
-    "v17") \
-        ;; \
-    *) \
-        echo "skipping the version of online_advistor for $PG_VERSION" && exit 0 \
-        ;; \
-    esac && \
-	wget https://github.com/knizhnik/online_advisor/archive/refs/tags/1.0.tar.gz -O online_advisor.tar.gz && \
-    echo "37dcadf8f7cc8d6cc1f8831276ee245b44f1b0274f09e511e47a67738ba9ed0f online_advisor.tar.gz" | sha256sum --check && \
-    mkdir online_advisor-src && cd online_advisor-src && tar xzf ../online_advisor.tar.gz --strip-components=1 -C .
-
-FROM pg-build AS online_advisor-build
-COPY --from=online_advisor-src /ext-src/ /ext-src/
-WORKDIR /ext-src/
-RUN if [ -d online_advisor-src ]; then \
-	    cd online_advisor-src && \
-        make -j install && \
-        echo 'trusted = true' >> /usr/local/pgsql/share/extension/online_advisor.control; \
-    fi
-
 #########################################################################################
 #
 # Layer "pg_hashids-build"
@@ -1057,10 +1024,17 @@ RUN make -j $(getconf _NPROCESSORS_ONLN) && \

 #########################################################################################
 #
-# Layer "build-deps with Rust toolchain installed"
+# Layer "pg build with nonroot user and cargo installed"
+# This layer is base and common for layers with `pgrx`
 #
 #########################################################################################
-FROM build-deps AS build-deps-with-cargo
+FROM pg-build AS pg-build-nonroot-with-cargo
+ARG PG_VERSION
+
+RUN apt update && \
+    apt install --no-install-recommends --no-install-suggests -y curl libclang-dev && \
+    apt clean && rm -rf /var/lib/apt/lists/* && \
+    useradd -ms /bin/bash nonroot -b /home

 ENV HOME=/home/nonroot
 ENV PATH="/home/nonroot/.cargo/bin:$PATH"
@@ -1075,29 +1049,13 @@ RUN curl -sSO https://static.rust-lang.org/rustup/dist/$(uname -m)-unknown-linux
    ./rustup-init -y --no-modify-path --profile minimal --default-toolchain stable && \
    rm rustup-init

-#########################################################################################
-#
-# Layer "pg-build with Rust toolchain installed"
-# This layer is base and common for layers with `pgrx`
-#
-#########################################################################################
-FROM pg-build AS pg-build-with-cargo
-ARG PG_VERSION
-
-ENV HOME=/home/nonroot
-ENV PATH="/home/nonroot/.cargo/bin:$PATH"
-USER nonroot
-WORKDIR /home/nonroot
-
-COPY --from=build-deps-with-cargo /home/nonroot /home/nonroot
-
 #########################################################################################
 #
 # Layer "rust extensions"
 # This layer is used to build `pgrx` deps
 #
 #########################################################################################
-FROM pg-build-with-cargo AS rust-extensions-build
+FROM pg-build-nonroot-with-cargo AS rust-extensions-build
 ARG PG_VERSION

 RUN case "${PG_VERSION:?}" in \
@@ -1119,7 +1077,7 @@ USER root
 # and eventually get merged with `rust-extensions-build`
 #
 #########################################################################################
-FROM pg-build-with-cargo AS rust-extensions-build-pgrx12
+FROM pg-build-nonroot-with-cargo AS rust-extensions-build-pgrx12
 ARG PG_VERSION

 RUN cargo install --locked --version 0.12.9 cargo-pgrx && \
@@ -1136,7 +1094,7 @@ USER root
 # and eventually get merged with `rust-extensions-build`
 #
 #########################################################################################
-FROM pg-build-with-cargo AS rust-extensions-build-pgrx14
+FROM pg-build-nonroot-with-cargo AS rust-extensions-build-pgrx14
 ARG PG_VERSION

 RUN cargo install --locked --version 0.14.1 cargo-pgrx && \
@@ -1153,12 +1111,10 @@ USER root

 FROM build-deps AS pgrag-src
 ARG PG_VERSION
-WORKDIR /ext-src
-COPY compute/patches/onnxruntime.patch .

+WORKDIR /ext-src
 RUN wget https://github.com/microsoft/onnxruntime/archive/refs/tags/v1.18.1.tar.gz -O onnxruntime.tar.gz && \
    mkdir onnxruntime-src && cd onnxruntime-src && tar xzf ../onnxruntime.tar.gz --strip-components=1 -C . && \
-    patch -p1 < /ext-src/onnxruntime.patch && \
    echo "#nothing to test here" > neon-test.sh

 RUN wget https://github.com/neondatabase-labs/pgrag/archive/refs/tags/v0.1.2.tar.gz -O pgrag.tar.gz &&  \
@@ -1192,14 +1148,14 @@ RUN cd exts/rag && \
 RUN cd exts/rag_bge_small_en_v15 && \
    sed -i 's/pgrx = "0.14.1"/pgrx = { version = "0.14.1", features = [ "unsafe-postgres" ] }/g' Cargo.toml && \
    ORT_LIB_LOCATION=/ext-src/onnxruntime-src/build/Linux \
-        REMOTE_ONNX_URL=http://pg-ext-s3-gateway.pg-ext-s3-gateway.svc.cluster.local/pgrag-data/bge_small_en_v15.onnx \
+        REMOTE_ONNX_URL=http://pg-ext-s3-gateway/pgrag-data/bge_small_en_v15.onnx \
        cargo pgrx install --release --features remote_onnx && \
    echo "trusted = true" >> /usr/local/pgsql/share/extension/rag_bge_small_en_v15.control

 RUN cd exts/rag_jina_reranker_v1_tiny_en && \
    sed -i 's/pgrx = "0.14.1"/pgrx = { version = "0.14.1", features = [ "unsafe-postgres" ] }/g' Cargo.toml && \
    ORT_LIB_LOCATION=/ext-src/onnxruntime-src/build/Linux \
-        REMOTE_ONNX_URL=http://pg-ext-s3-gateway.pg-ext-s3-gateway.svc.cluster.local/pgrag-data/jina_reranker_v1_tiny_en.onnx \
+        REMOTE_ONNX_URL=http://pg-ext-s3-gateway/pgrag-data/jina_reranker_v1_tiny_en.onnx \
        cargo pgrx install --release --features remote_onnx && \
    echo "trusted = true" >> /usr/local/pgsql/share/extension/rag_jina_reranker_v1_tiny_en.control

@@ -1632,7 +1588,18 @@ FROM pg-build AS neon-ext-build
 ARG PG_VERSION

 COPY pgxn/ pgxn/
-RUN make -j $(getconf _NPROCESSORS_ONLN) -C pgxn -s install-compute
+RUN make -j $(getconf _NPROCESSORS_ONLN) \
+        -C pgxn/neon \
+        -s install && \
+    make -j $(getconf _NPROCESSORS_ONLN) \
+        -C pgxn/neon_utils \
+        -s install && \
+    make -j $(getconf _NPROCESSORS_ONLN) \
+        -C pgxn/neon_test_utils \
+        -s install && \
+    make -j $(getconf _NPROCESSORS_ONLN) \
+        -C pgxn/neon_rmgr \
+        -s install

 #########################################################################################
 #
@@ -1681,7 +1648,6 @@ COPY --from=pg_jsonschema-build /usr/local/pgsql/ /usr/local/pgsql/
 COPY --from=pg_graphql-build /usr/local/pgsql/ /usr/local/pgsql/
 COPY --from=pg_tiktoken-build /usr/local/pgsql/ /usr/local/pgsql/
 COPY --from=hypopg-build /usr/local/pgsql/ /usr/local/pgsql/
-COPY --from=online_advisor-build /usr/local/pgsql/ /usr/local/pgsql/
 COPY --from=pg_hashids-build /usr/local/pgsql/ /usr/local/pgsql/
 COPY --from=rum-build /usr/local/pgsql/ /usr/local/pgsql/
 COPY --from=pgtap-build /usr/local/pgsql/ /usr/local/pgsql/
@@ -1722,7 +1688,7 @@ FROM extensions-${EXTENSIONS} AS neon-pg-ext-build
 # Compile the Neon-specific `compute_ctl`, `fast_import`, and `local_proxy` binaries
 #
 #########################################################################################
-FROM build-deps-with-cargo AS compute-tools
+FROM $REPOSITORY/$IMAGE:$TAG AS compute-tools
 ARG BUILD_TAG
 ENV BUILD_TAG=$BUILD_TAG

@@ -1732,7 +1698,7 @@ COPY --chown=nonroot . .
 RUN --mount=type=cache,uid=1000,target=/home/nonroot/.cargo/registry \
    --mount=type=cache,uid=1000,target=/home/nonroot/.cargo/git \
    --mount=type=cache,uid=1000,target=/home/nonroot/target \
-    cargo build --locked --profile release-line-debug-size-lto --bin compute_ctl --bin fast_import --bin local_proxy && \
+    mold -run cargo build --locked --profile release-line-debug-size-lto --bin compute_ctl --bin fast_import --bin local_proxy && \
    mkdir target-bin && \
    cp target/release-line-debug-size-lto/compute_ctl \
       target/release-line-debug-size-lto/fast_import \
@@ -1785,17 +1751,17 @@ ARG TARGETARCH
 RUN if [ "$TARGETARCH" = "amd64" ]; then\
        postgres_exporter_sha256='59aa4a7bb0f7d361f5e05732f5ed8c03cc08f78449cef5856eadec33a627694b';\
        pgbouncer_exporter_sha256='c9f7cf8dcff44f0472057e9bf52613d93f3ffbc381ad7547a959daa63c5e84ac';\
-        sql_exporter_sha256='9a41127a493e8bfebfe692bf78c7ed2872a58a3f961ee534d1b0da9ae584aaab';\
+        sql_exporter_sha256='38e439732bbf6e28ca4a94d7bc3686d3fa1abdb0050773d5617a9efdb9e64d08';\
    else\
        postgres_exporter_sha256='d1dedea97f56c6d965837bfd1fbb3e35a3b4a4556f8cccee8bd513d8ee086124';\
        pgbouncer_exporter_sha256='217c4afd7e6492ae904055bc14fe603552cf9bac458c063407e991d68c519da3';\
-        sql_exporter_sha256='530e6afc77c043497ed965532c4c9dfa873bc2a4f0b3047fad367715c0081d6a';\
+        sql_exporter_sha256='11918b00be6e2c3a67564adfdb2414fdcbb15a5db76ea17d1d1a944237a893c6';\
    fi\
    && curl -sL https://github.com/prometheus-community/postgres_exporter/releases/download/v0.17.1/postgres_exporter-0.17.1.linux-${TARGETARCH}.tar.gz\
     | tar xzf - --strip-components=1 -C.\
    && curl -sL https://github.com/prometheus-community/pgbouncer_exporter/releases/download/v0.10.2/pgbouncer_exporter-0.10.2.linux-${TARGETARCH}.tar.gz\
     | tar xzf - --strip-components=1 -C.\
-    && curl -sL https://github.com/burningalchemist/sql_exporter/releases/download/0.17.3/sql_exporter-0.17.3.linux-${TARGETARCH}.tar.gz\
+    && curl -sL https://github.com/burningalchemist/sql_exporter/releases/download/0.17.0/sql_exporter-0.17.0.linux-${TARGETARCH}.tar.gz\
     | tar xzf - --strip-components=1 -C.\
    && echo "${postgres_exporter_sha256} postgres_exporter" | sha256sum -c -\
    && echo "${pgbouncer_exporter_sha256} pgbouncer_exporter" | sha256sum -c -\
@@ -1826,11 +1792,10 @@ RUN rm /usr/local/pgsql/lib/lib*.a
 # Preprocess the sql_exporter configuration files
 #
 #########################################################################################
-FROM build-deps AS sql_exporter_preprocessor
+FROM $REPOSITORY/$IMAGE:$TAG AS sql_exporter_preprocessor
 ARG PG_VERSION

 USER nonroot
-WORKDIR /home/nonroot

 COPY --chown=nonroot compute compute

@@ -1844,27 +1809,12 @@ RUN make PG_VERSION="${PG_VERSION:?}" -C compute

 FROM pg-build AS extension-tests
 ARG PG_VERSION
-# This is required for the PostGIS test
-RUN apt-get update && case $DEBIAN_VERSION in \
-      bullseye) \
-        apt-get install -y libproj19 libgdal28 time; \
-      ;; \
-      bookworm) \
-        apt-get install -y libgdal32 libproj25 time; \
-      ;; \
-      *) \
-        echo "Unknown Debian version ${DEBIAN_VERSION}" && exit 1 \
-      ;; \
-    esac
-
 COPY docker-compose/ext-src/ /ext-src/

 COPY --from=pg-build /postgres /postgres
-COPY --from=postgis-build /usr/local/pgsql/ /usr/local/pgsql/
-COPY --from=postgis-build /ext-src/postgis-src /ext-src/postgis-src
-COPY --from=postgis-build /sfcgal/* /usr
+#COPY --from=postgis-src /ext-src/ /ext-src/
 COPY --from=plv8-src /ext-src/ /ext-src/
-COPY --from=h3-pg-src /ext-src/h3-pg-src /ext-src/h3-pg-src
+#COPY --from=h3-pg-src /ext-src/ /ext-src/
 COPY --from=postgresql-unit-src /ext-src/ /ext-src/
 COPY --from=pgvector-src /ext-src/ /ext-src/
 COPY --from=pgjwt-src /ext-src/ /ext-src/
@@ -1873,7 +1823,6 @@ COPY --from=pgjwt-src /ext-src/ /ext-src/
 COPY --from=pg_graphql-src /ext-src/ /ext-src/
 #COPY --from=pg_tiktoken-src /ext-src/ /ext-src/
 COPY --from=hypopg-src /ext-src/ /ext-src/
-COPY --from=online_advisor-src /ext-src/ /ext-src/
 COPY --from=pg_hashids-src /ext-src/ /ext-src/
 COPY --from=rum-src /ext-src/ /ext-src/
 COPY --from=pgtap-src /ext-src/ /ext-src/
@@ -1903,7 +1852,6 @@ COPY compute/patches/pg_repack.patch /ext-src
 RUN cd /ext-src/pg_repack-src && patch -p1 </ext-src/pg_repack.patch && rm -f /ext-src/pg_repack.patch

 COPY --chmod=755 docker-compose/run-tests.sh /run-tests.sh
-RUN echo /usr/local/pgsql/lib > /etc/ld.so.conf.d/00-neon.conf && /sbin/ldconfig
 RUN apt-get update && apt-get install -y libtap-parser-sourcehandler-pgtap-perl jq \
   && apt clean && rm -rf /ext-src/*.tar.gz /ext-src/*.patch /var/lib/apt/lists/*
 ENV PATH=/usr/local/pgsql/bin:$PATH
--- a/compute/etc/pgbouncer.ini
+++ b/compute/etc/pgbouncer.ini
@@ -21,8 +21,6 @@ unix_socket_dir=/tmp/
 unix_socket_mode=0777
 ; required for pgbouncer_exporter
 ignore_startup_parameters=extra_float_digits
-; pidfile for graceful termination
-pidfile=/tmp/pgbouncer.pid

 ;; Disable connection logging. It produces a lot of logs that no one looks at,
 ;; and we can get similar log entries from the proxy too. We had incidents in
--- a/compute/manifest.schema.json
+++ b/compute/manifest.schema.json
@@ -1,209 +0,0 @@
-{
-  "$schema": "https://json-schema.org/draft/2020-12/schema",
-  "title": "Neon Compute Manifest Schema",
-  "description": "Schema for Neon compute node configuration manifest",
-  "type": "object",
-  "properties": {
-    "pg_settings": {
-      "type": "object",
-      "properties": {
-        "common": {
-          "type": "object",
-          "properties": {
-            "client_connection_check_interval": {
-              "type": "string",
-              "description": "Check for client disconnection interval in milliseconds"
-            },
-            "effective_io_concurrency": {
-              "type": "string",
-              "description": "Effective IO concurrency setting"
-            },
-            "fsync": {
-              "type": "string",
-              "enum": ["on", "off"],
-              "description": "Whether to force fsync to disk"
-            },
-            "hot_standby": {
-              "type": "string",
-              "enum": ["on", "off"],
-              "description": "Whether hot standby is enabled"
-            },
-            "idle_in_transaction_session_timeout": {
-              "type": "string",
-              "description": "Timeout for idle transactions in milliseconds"
-            },
-            "listen_addresses": {
-              "type": "string",
-              "description": "Addresses to listen on"
-            },
-            "log_connections": {
-              "type": "string",
-              "enum": ["on", "off"],
-              "description": "Whether to log connections"
-            },
-            "log_disconnections": {
-              "type": "string",
-              "enum": ["on", "off"],
-              "description": "Whether to log disconnections"
-            },
-            "log_temp_files": {
-              "type": "string",
-              "description": "Size threshold for logging temporary files in KB"
-            },
-            "log_error_verbosity": {
-              "type": "string",
-              "enum": ["terse", "verbose", "default"],
-              "description": "Error logging verbosity level"
-            },
-            "log_min_error_statement": {
-              "type": "string",
-              "description": "Minimum error level for statement logging"
-            },
-            "maintenance_io_concurrency": {
-              "type": "string",
-              "description": "Maintenance IO concurrency setting"
-            },
-            "max_connections": {
-              "type": "string",
-              "description": "Maximum number of connections"
-            },
-            "max_replication_flush_lag": {
-              "type": "string",
-              "description": "Maximum replication flush lag"
-            },
-            "max_replication_slots": {
-              "type": "string",
-              "description": "Maximum number of replication slots"
-            },
-            "max_replication_write_lag": {
-              "type": "string",
-              "description": "Maximum replication write lag"
-            },
-            "max_wal_senders": {
-              "type": "string",
-              "description": "Maximum number of WAL senders"
-            },
-            "max_wal_size": {
-              "type": "string",
-              "description": "Maximum WAL size"
-            },
-            "neon.unstable_extensions": {
-              "type": "string",
-              "description": "List of unstable extensions"
-            },
-            "neon.protocol_version": {
-              "type": "string",
-              "description": "Neon protocol version"
-            },
-            "password_encryption": {
-              "type": "string",
-              "description": "Password encryption method"
-            },
-            "restart_after_crash": {
-              "type": "string",
-              "enum": ["on", "off"],
-              "description": "Whether to restart after crash"
-            },
-            "superuser_reserved_connections": {
-              "type": "string",
-              "description": "Number of reserved connections for superuser"
-            },
-            "synchronous_standby_names": {
-              "type": "string",
-              "description": "Names of synchronous standby servers"
-            },
-            "wal_keep_size": {
-              "type": "string",
-              "description": "WAL keep size"
-            },
-            "wal_level": {
-              "type": "string",
-              "description": "WAL level"
-            },
-            "wal_log_hints": {
-              "type": "string",
-              "enum": ["on", "off"],
-              "description": "Whether to log hints in WAL"
-            },
-            "wal_sender_timeout": {
-              "type": "string",
-              "description": "WAL sender timeout in milliseconds"
-            }
-          },
-          "required": [
-            "client_connection_check_interval",
-            "effective_io_concurrency",
-            "fsync",
-            "hot_standby",
-            "idle_in_transaction_session_timeout",
-            "listen_addresses",
-            "log_connections",
-            "log_disconnections",
-            "log_temp_files",
-            "log_error_verbosity",
-            "log_min_error_statement",
-            "maintenance_io_concurrency",
-            "max_connections",
-            "max_replication_flush_lag",
-            "max_replication_slots",
-            "max_replication_write_lag",
-            "max_wal_senders",
-            "max_wal_size",
-            "neon.unstable_extensions",
-            "neon.protocol_version",
-            "password_encryption",
-            "restart_after_crash",
-            "superuser_reserved_connections",
-            "synchronous_standby_names",
-            "wal_keep_size",
-            "wal_level",
-            "wal_log_hints",
-            "wal_sender_timeout"
-          ]
-        },
-        "replica": {
-          "type": "object",
-          "properties": {
-            "hot_standby": {
-              "type": "string",
-              "enum": ["on", "off"],
-              "description": "Whether hot standby is enabled for replicas"
-            }
-          },
-          "required": ["hot_standby"]
-        },
-        "per_version": {
-          "type": "object",
-          "patternProperties": {
-            "^1[4-7]$": {
-              "type": "object",
-              "properties": {
-                "common": {
-                  "type": "object",
-                  "properties": {
-                    "io_combine_limit": {
-                      "type": "string",
-                      "description": "IO combine limit"
-                    }
-                  }
-                },
-                "replica": {
-                  "type": "object",
-                  "properties": {
-                    "recovery_prefetch": {
-                      "type": "string",
-                      "enum": ["on", "off"],
-                      "description": "Whether to enable recovery prefetch for PostgreSQL replicas"
-                    }
-                  }
-                }
-              }
-            }
-          }
-        }
-      },
-      "required": ["common", "replica", "per_version"]
-    }
-  },
-  "required": ["pg_settings"]
-} 
--- a/compute/manifest.yaml
+++ b/compute/manifest.yaml
@@ -1,121 +0,0 @@
-pg_settings:
-  # Common settings for primaries and replicas of all versions.
-  common:
-    # Check for client disconnection every 1 minute. By default, Postgres will detect the
-    # loss of the connection only at the next interaction with the socket, when it waits
-    # for, receives or sends data, so it will likely waste resources till the end of the
-    # query execution. There should be no drawbacks in setting this for everyone, so enable
-    # it by default. If anyone will complain, we can allow editing it.
-    # https://www.postgresql.org/docs/16/runtime-config-connection.html#GUC-CLIENT-CONNECTION-CHECK-INTERVAL
-    client_connection_check_interval: "60000" # 1 minute
-    # ---- IO ---- 
-    effective_io_concurrency: "20"
-    maintenance_io_concurrency: "100"
-    fsync: "off"
-    hot_standby: "off"
-    # We allow users to change this if needed, but by default we
-    # just don't want to see long-lasting idle transactions, as they
-    # prevent activity monitor from suspending projects.
-    idle_in_transaction_session_timeout: "300000" # 5 minutes
-    listen_addresses: "*"
-    # --- LOGGING ---- helps investigations
-    log_connections: "on"
-    log_disconnections: "on"
-    # 1GB, unit is KB
-    log_temp_files: "1048576"
-    # Disable dumping customer data to logs, both to increase data privacy
-    # and to reduce the amount the logs.
-    log_error_verbosity: "terse"
-    log_min_error_statement: "panic"
-    max_connections: "100"
-    # --- WAL ---
-    # - flush lag is the max amount of WAL that has been generated but not yet stored
-    # to disk in the page server. A smaller value means less delay after a pageserver
-    # restart, but if you set it too small you might again need to slow down writes if the
-    # pageserver cannot flush incoming WAL to disk fast enough. This must be larger
-    # than the pageserver's checkpoint interval, currently 1 GB! Otherwise you get a
-    # a deadlock where the compute node refuses to generate more WAL before the
-    # old WAL has been uploaded to S3, but the pageserver is waiting for more WAL
-    # to be generated before it is uploaded to S3.
-    max_replication_flush_lag: "10GB"
-    max_replication_slots: "10"
-    # Backpressure configuration:
-    # - write lag is the max amount of WAL that has been generated by Postgres but not yet
-    # processed by the page server. Making this smaller reduces the worst case latency
-    # of a GetPage request, if you request a page that was recently modified. On the other
-    # hand, if this is too small, the compute node might need to wait on a write if there is a
-    # hiccup in the network or page server so that the page server has temporarily fallen
-    # behind.
-    #
-    # Previously it was set to 500 MB, but it caused compute being unresponsive under load
-    # https://github.com/neondatabase/neon/issues/2028
-    max_replication_write_lag: "500MB"
-    max_wal_senders: "10"
-    # A Postgres checkpoint is cheap in storage, as doesn't involve any significant amount
-    # of real I/O. Only the SLRU buffers and some other small files are flushed to disk.
-    # However, as long as we have full_page_writes=on, page updates after a checkpoint
-    # include full-page images which bloats the WAL. So may want to bump max_wal_size to
-    # reduce the WAL bloating, but at the same it will increase pg_wal directory size on
-    # compute and can lead to out of disk error on k8s nodes.
-    max_wal_size: "1024"
-    wal_keep_size: "0"
-    wal_level: "replica"
-    # Reduce amount of WAL generated by default.
-    wal_log_hints: "off"
-    # - without wal_sender_timeout set we don't get feedback messages,
-    # required for backpressure.
-    wal_sender_timeout: "10000"
-    # We have some experimental extensions, which we don't want users to install unconsciously.
-    # To install them, users would need to set the `neon.allow_unstable_extensions` setting.
-    # There are two of them currently:
-    # - `pgrag` - https://github.com/neondatabase-labs/pgrag - extension is actually called just `rag`,
-    #                                                          and two dependencies:
-    #                                                          - `rag_bge_small_en_v15`
-    #                                                          - `rag_jina_reranker_v1_tiny_en`
-    # - `pg_mooncake` - https://github.com/Mooncake-Labs/pg_mooncake/  
-    neon.unstable_extensions: "rag,rag_bge_small_en_v15,rag_jina_reranker_v1_tiny_en,pg_mooncake,anon"
-    neon.protocol_version: "3"
-    password_encryption: "scram-sha-256"
-    # This is important to prevent Postgres from trying to perform
-    # a local WAL redo after backend crash. It should exit and let
-    # the systemd or k8s to do a fresh startup with compute_ctl.
-    restart_after_crash: "off"
-    # By default 3. We have the following persistent connections in the VM:
-    # * compute_activity_monitor (from compute_ctl)
-    # * postgres-exporter (metrics collector; it has 2 connections)
-    # * sql_exporter (metrics collector; we have 2 instances [1 for us & users; 1 for autoscaling])
-    # * vm-monitor (to query & change file cache size)
-    # i.e. total of 6. Let's reserve 7, so there's still at least one left over.
-    superuser_reserved_connections: "7"
-    synchronous_standby_names: "walproposer"
-
-  replica:
-    hot_standby: "on"
-
-  per_version:
-    17:
-      common:
-        # PostgreSQL 17 has a new IO system called "read stream", which can combine IOs up to some
-        # size. It still has some issues with readahead, though, so we default to disabled/
-        # "no combining of IOs" to make sure we get the maximum prefetch depth.
-        # See also: https://github.com/neondatabase/neon/pull/9860
-        io_combine_limit: "1"
-      replica:
-        # prefetching of blocks referenced in WAL doesn't make sense for us
-        # Neon hot standby ignores pages that are not in the shared_buffers
-        recovery_prefetch: "off"
-    16:
-      common: {}
-      replica:
-        # prefetching of blocks referenced in WAL doesn't make sense for us
-        # Neon hot standby ignores pages that are not in the shared_buffers
-        recovery_prefetch: "off"
-    15:
-      common: {}
-      replica:
-        # prefetching of blocks referenced in WAL doesn't make sense for us
-        # Neon hot standby ignores pages that are not in the shared_buffers
-        recovery_prefetch: "off"
-    14:
-      common: {}
-      replica: {}
--- a/compute/package-lock.json
+++ b/compute/package-lock.json
@@ -1,37 +0,0 @@
-{
-  "name": "neon-compute",
-  "lockfileVersion": 3,
-  "requires": true,
-  "packages": {
-    "": {
-      "name": "neon-compute",
-      "dependencies": {
-        "@sourcemeta/jsonschema": "9.3.4"
-      }
-    },
-    "node_modules/@sourcemeta/jsonschema": {
-      "version": "9.3.4",
-      "resolved": "https://registry.npmjs.org/@sourcemeta/jsonschema/-/jsonschema-9.3.4.tgz",
-      "integrity": "sha512-hkujfkZAIGXUs4U//We9faZW8LZ4/H9LqagRYsFSulH/VLcKPNhZyCTGg7AhORuzm27zqENvKpnX4g2FzudYFw==",
-      "cpu": [
-        "x64",
-        "arm64"
-      ],
-      "license": "AGPL-3.0",
-      "os": [
-        "darwin",
-        "linux",
-        "win32"
-      ],
-      "bin": {
-        "jsonschema": "cli.js"
-      },
-      "engines": {
-        "node": ">=16"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sourcemeta"
-      }
-    }
-  }
-}
--- a/compute/package.json
+++ b/compute/package.json
@@ -1,7 +0,0 @@
-{
-  "name": "neon-compute",
-  "private": true,
-  "dependencies": {
-    "@sourcemeta/jsonschema": "9.3.4"
-  }
-} 
--- a/compute/patches/onnxruntime.patch
+++ b/compute/patches/onnxruntime.patch
@@ -1,15 +0,0 @@
-diff --git a/cmake/deps.txt b/cmake/deps.txt
-index d213b09034..229de2ebf0 100644
--- a/cmake/deps.txt
-+++ b/cmake/deps.txt
-@@ -22,7 +22,9 @@ dlpack;https://github.com/dmlc/dlpack/archive/refs/tags/v0.6.zip;4d565dd2e5b3132
- # it contains changes on top of 3.4.0 which are required to fix build issues.
- # Until the 3.4.1 release this is the best option we have.
- # Issue link: https://gitlab.com/libeigen/eigen/-/issues/2744
-eigen;https://gitlab.com/libeigen/eigen/-/archive/e7248b26a1ed53fa030c5c459f7ea095dfd276ac/eigen-e7248b26a1ed53fa030c5c459f7ea095dfd276ac.zip;be8be39fdbc6e60e94fa7870b280707069b5b81a
-+# Moved to github mirror to avoid gitlab issues.Add commentMore actions
-+# Issue link: https://github.com/bazelbuild/bazel-central-registry/issues/4355
-+eigen;https://github.com/eigen-mirror/eigen/archive/e7248b26a1ed53fa030c5c459f7ea095dfd276ac/eigen-e7248b26a1ed53fa030c5c459f7ea095dfd276ac.zip;61418a349000ba7744a3ad03cf5071f22ebf860a
- flatbuffers;https://github.com/google/flatbuffers/archive/refs/tags/v23.5.26.zip;59422c3b5e573dd192fead2834d25951f1c1670c
- fp16;https://github.com/Maratyszcza/FP16/archive/0a92994d729ff76a58f692d3028ca1b64b145d91.zip;b985f6985a05a1c03ff1bb71190f66d8f98a1494
- fxdiv;https://github.com/Maratyszcza/FXdiv/archive/63058eff77e11aa15bf531df5dd34395ec3017c8.zip;a5658f4036402dbca7cebee32be57fb8149811e1
--- a/compute/patches/rum.patch
+++ b/compute/patches/rum.patch
@@ -7,7 +7,7 @@ index 255e616..1c6edb7 100644
 			 RelationGetRelationName(index));
 
 +#ifdef NEON_SMGR
-+	smgr_start_unlogged_build(RelationGetSmgr(index));
+	smgr_start_unlogged_build(index->rd_smgr);
 +#endif
 +
 	initRumState(&buildstate.rumstate, index);
@@ -18,7 +18,7 @@ index 255e616..1c6edb7 100644
 	rumUpdateStats(index, &buildstate.buildStats, buildstate.rumstate.isBuild);
 
 +#ifdef NEON_SMGR
-+	smgr_finish_unlogged_build_phase_1(RelationGetSmgr(index));
+	smgr_finish_unlogged_build_phase_1(index->rd_smgr);
 +#endif
 +
 	/*
@@ -29,7 +29,7 @@ index 255e616..1c6edb7 100644
 	}
 
 +#ifdef NEON_SMGR
-+	smgr_end_unlogged_build(RelationGetSmgr(index));
+	smgr_end_unlogged_build(index->rd_smgr);
 +#endif
 +
 	/*
--- a/compute_tools/Cargo.toml
+++ b/compute_tools/Cargo.toml
@@ -38,7 +38,6 @@ once_cell.workspace = true
 opentelemetry.workspace = true
 opentelemetry_sdk.workspace = true
 p256 = { version = "0.13", features = ["pem"] }
-pageserver_page_api.workspace = true
 postgres.workspace = true
 regex.workspace = true
 reqwest = { workspace = true, features = ["json"] }
@@ -54,7 +53,6 @@ tokio = { workspace = true, features = ["rt", "rt-multi-thread"] }
 tokio-postgres.workspace = true
 tokio-util.workspace = true
 tokio-stream.workspace = true
-tonic.workspace = true
 tower-otel.workspace = true
 tracing.workspace = true
 tracing-opentelemetry.workspace = true
--- a/compute_tools/src/bin/compute_ctl.rs
+++ b/compute_tools/src/bin/compute_ctl.rs
@@ -40,7 +40,7 @@ use std::sync::mpsc;
 use std::thread;
 use std::time::Duration;

-use anyhow::{Context, Result, bail};
+use anyhow::{Context, Result};
 use clap::Parser;
 use compute_api::responses::ComputeConfig;
 use compute_tools::compute::{
@@ -57,15 +57,31 @@ use tracing::{error, info};
 use url::Url;
 use utils::failpoint_support;

-#[derive(Debug, Parser)]
+// Compatibility hack: if the control plane specified any remote-ext-config
+// use the default value for extension storage proxy gateway.
+// Remove this once the control plane is updated to pass the gateway URL
+fn parse_remote_ext_base_url(arg: &str) -> Result<String> {
+    const FALLBACK_PG_EXT_GATEWAY_BASE_URL: &str =
+        "http://pg-ext-s3-gateway.pg-ext-s3-gateway.svc.cluster.local";
+
+    Ok(if arg.starts_with("http") {
+        arg
+    } else {
+        FALLBACK_PG_EXT_GATEWAY_BASE_URL
+    }
+    .to_owned())
+}
+
+#[derive(Parser)]
 #[command(rename_all = "kebab-case")]
 struct Cli {
    #[arg(short = 'b', long, default_value = "postgres", env = "POSTGRES_PATH")]
    pub pgbin: String,

    /// The base URL for the remote extension storage proxy gateway.
-    #[arg(short = 'r', long, value_parser = Self::parse_remote_ext_base_url)]
-    pub remote_ext_base_url: Option<Url>,
+    /// Should be in the form of `http(s)://<gateway-hostname>[:<port>]`.
+    #[arg(short = 'r', long, value_parser = parse_remote_ext_base_url, alias = "remote-ext-config")]
+    pub remote_ext_base_url: Option<String>,

    /// The port to bind the external listening HTTP server to. Clients running
    /// outside the compute will talk to the compute through this port. Keep
@@ -120,33 +136,6 @@ struct Cli {
        requires = "compute-id"
    )]
    pub control_plane_uri: Option<String>,
-
-    /// Interval in seconds for collecting installed extensions statistics
-    #[arg(long, default_value = "3600")]
-    pub installed_extensions_collection_interval: u64,
-
-    /// Run in development mode, skipping VM-specific operations like process termination
-    #[arg(long, action = clap::ArgAction::SetTrue)]
-    pub dev: bool,
-}
-
-impl Cli {
-    /// Parse a URL from an argument. By default, this isn't necessary, but we
-    /// want to do some sanity checking.
-    fn parse_remote_ext_base_url(value: &str) -> Result<Url> {
-        // Remove extra trailing slashes, and add one. We use Url::join() later
-        // when downloading remote extensions. If the base URL is something like
-        // http://example.com/pg-ext-s3-gateway, and join() is called with
-        // something like "xyz", the resulting URL is http://example.com/xyz.
-        let value = value.trim_end_matches('/').to_owned() + "/";
-        let url = Url::parse(&value)?;
-
-        if url.query_pairs().count() != 0 {
-            bail!("parameters detected in remote extensions base URL")
-        }
-
-        Ok(url)
-    }
 }

 fn main() -> Result<()> {
@@ -163,7 +152,7 @@ fn main() -> Result<()> {
        .build()?;
    let _rt_guard = runtime.enter();

-    runtime.block_on(init(cli.dev))?;
+    runtime.block_on(init())?;

    // enable core dumping for all child processes
    setrlimit(Resource::CORE, rlimit::INFINITY, rlimit::INFINITY)?;
@@ -190,7 +179,6 @@ fn main() -> Result<()> {
            cgroup: cli.cgroup,
            #[cfg(target_os = "linux")]
            vm_monitor_addr: cli.vm_monitor_addr,
-            installed_extensions_collection_interval: cli.installed_extensions_collection_interval,
        },
        config,
    )?;
@@ -202,13 +190,13 @@ fn main() -> Result<()> {
    deinit_and_exit(exit_code);
 }

-async fn init(dev_mode: bool) -> Result<()> {
+async fn init() -> Result<()> {
    init_tracing_and_logging(DEFAULT_LOG_LEVEL).await?;

    let mut signals = Signals::new([SIGINT, SIGTERM, SIGQUIT])?;
    thread::spawn(move || {
        for sig in signals.forever() {
-            handle_exit_signal(sig, dev_mode);
+            handle_exit_signal(sig);
        }
    });

@@ -267,16 +255,15 @@ fn deinit_and_exit(exit_code: Option<i32>) -> ! {
 /// When compute_ctl is killed, send also termination signal to sync-safekeepers
 /// to prevent leakage. TODO: it is better to convert compute_ctl to async and
 /// wait for termination which would be easy then.
-fn handle_exit_signal(sig: i32, dev_mode: bool) {
+fn handle_exit_signal(sig: i32) {
    info!("received {sig} termination signal");
-    forward_termination_signal(dev_mode);
+    forward_termination_signal();
    exit(1);
 }

 #[cfg(test)]
 mod test {
-    use clap::{CommandFactory, Parser};
-    use url::Url;
+    use clap::CommandFactory;

    use super::Cli;

@@ -286,41 +273,16 @@ mod test {
    }

    #[test]
-    fn verify_remote_ext_base_url() {
-        let cli = Cli::parse_from([
-            "compute_ctl",
-            "--pgdata=test",
-            "--connstr=test",
-            "--compute-id=test",
-            "--remote-ext-base-url",
-            "https://example.com/subpath",
-        ]);
-        assert_eq!(
-            cli.remote_ext_base_url.unwrap(),
-            Url::parse("https://example.com/subpath/").unwrap()
-        );
+    fn parse_pg_ext_gateway_base_url() {
+        let arg = "http://pg-ext-s3-gateway2";
+        let result = super::parse_remote_ext_base_url(arg).unwrap();
+        assert_eq!(result, arg);

-        let cli = Cli::parse_from([
-            "compute_ctl",
-            "--pgdata=test",
-            "--connstr=test",
-            "--compute-id=test",
-            "--remote-ext-base-url",
-            "https://example.com//",
-        ]);
+        let arg = "pg-ext-s3-gateway";
+        let result = super::parse_remote_ext_base_url(arg).unwrap();
        assert_eq!(
-            cli.remote_ext_base_url.unwrap(),
-            Url::parse("https://example.com").unwrap()
+            result,
+            "http://pg-ext-s3-gateway.pg-ext-s3-gateway.svc.cluster.local"
        );
-
-        Cli::try_parse_from([
-            "compute_ctl",
-            "--pgdata=test",
-            "--connstr=test",
-            "--compute-id=test",
-            "--remote-ext-base-url",
-            "https://example.com?hello=world",
-        ])
-        .expect_err("URL parameters are not allowed");
    }
 }
--- a/compute_tools/src/bin/fast_import.rs
+++ b/compute_tools/src/bin/fast_import.rs
@@ -339,8 +339,6 @@ async fn run_dump_restore(
    destination_connstring: String,
 ) -> Result<(), anyhow::Error> {
    let dumpdir = workdir.join("dumpdir");
-    let num_jobs = num_cpus::get().to_string();
-    info!("using {num_jobs} jobs for dump/restore");

    let common_args = [
        // schema mapping (prob suffices to specify them on one side)
@@ -356,7 +354,7 @@ async fn run_dump_restore(
        "directory".to_string(),
        // concurrency
        "--jobs".to_string(),
-        num_jobs,
+        num_cpus::get().to_string(),
        // progress updates
        "--verbose".to_string(),
    ];
--- a/compute_tools/src/compute.rs
+++ b/compute_tools/src/compute.rs
@@ -1,9 +1,9 @@
-use anyhow::{Context, Result, anyhow};
+use anyhow::{Context, Result};
 use chrono::{DateTime, Utc};
 use compute_api::privilege::Privilege;
 use compute_api::responses::{
    ComputeConfig, ComputeCtlConfig, ComputeMetrics, ComputeStatus, LfcOffloadState,
-    LfcPrewarmState, TlsConfig,
+    LfcPrewarmState,
 };
 use compute_api::spec::{
    ComputeAudit, ComputeFeature, ComputeMode, ComputeSpec, ExtVersion, PgIdent,
@@ -15,7 +15,6 @@ use itertools::Itertools;
 use nix::sys::signal::{Signal, kill};
 use nix::unistd::Pid;
 use once_cell::sync::Lazy;
-use pageserver_page_api as page_api;
 use postgres;
 use postgres::NoTls;
 use postgres::error::SqlState;
@@ -31,13 +30,10 @@ use std::sync::{Arc, Condvar, Mutex, RwLock};
 use std::time::{Duration, Instant};
 use std::{env, fs};
 use tokio::spawn;
-use tokio_util::io::StreamReader;
 use tracing::{Instrument, debug, error, info, instrument, warn};
-use url::Url;
 use utils::id::{TenantId, TimelineId};
 use utils::lsn::Lsn;
 use utils::measured_stream::MeasuredReader;
-use utils::pid_file;

 use crate::configurator::launch_configurator;
 use crate::disk_quota::set_disk_quota;
@@ -47,7 +43,6 @@ use crate::lsn_lease::launch_lsn_lease_bg_task_for_static;
 use crate::metrics::COMPUTE_CTL_UP;
 use crate::monitor::launch_monitor;
 use crate::pg_helpers::*;
-use crate::pgbouncer::*;
 use crate::rsyslog::{
    PostgresLogsRsyslogConfig, configure_audit_rsyslog, configure_postgres_logs_export,
    launch_pgaudit_gc,
@@ -101,10 +96,7 @@ pub struct ComputeNodeParams {
    pub internal_http_port: u16,

    /// the address of extension storage proxy gateway
-    pub remote_ext_base_url: Option<Url>,
-
-    /// Interval for installed extensions collection
-    pub installed_extensions_collection_interval: u64,
+    pub remote_ext_base_url: Option<String>,
 }

 /// Compute node info shared across several `compute_ctl` threads.
@@ -165,10 +157,6 @@ pub struct ComputeState {
    pub lfc_prewarm_state: LfcPrewarmState,
    pub lfc_offload_state: LfcOffloadState,

-    /// WAL flush LSN that is set after terminating Postgres and syncing safekeepers if
-    /// mode == ComputeMode::Primary. None otherwise
-    pub terminate_flush_lsn: Option<Lsn>,
-
    pub metrics: ComputeMetrics,
 }

@@ -184,7 +172,6 @@ impl ComputeState {
            metrics: ComputeMetrics::default(),
            lfc_prewarm_state: LfcPrewarmState::default(),
            lfc_offload_state: LfcOffloadState::default(),
-            terminate_flush_lsn: None,
        }
    }

@@ -224,46 +211,6 @@ pub struct ParsedSpec {
    pub endpoint_storage_token: Option<String>,
 }

-impl ParsedSpec {
-    pub fn validate(&self) -> Result<(), String> {
-        // Only Primary nodes are using safekeeper_connstrings, and at the moment
-        // this method only validates that part of the specs.
-        if self.spec.mode != ComputeMode::Primary {
-            return Ok(());
-        }
-
-        // While it seems like a good idea to check for an odd number of entries in
-        // the safekeepers connection string, changes to the list of safekeepers might
-        // incur appending a new server to a list of 3, in which case a list of 4
-        // entries is okay in production.
-        //
-        // Still we want unique entries, and at least one entry in the vector
-        if self.safekeeper_connstrings.is_empty() {
-            return Err(String::from("safekeeper_connstrings is empty"));
-        }
-
-        // check for uniqueness of the connection strings in the set
-        let mut connstrings = self.safekeeper_connstrings.clone();
-
-        connstrings.sort();
-        let mut previous = &connstrings[0];
-
-        for current in connstrings.iter().skip(1) {
-            // duplicate entry?
-            if current == previous {
-                return Err(format!(
-                    "duplicate entry in safekeeper_connstrings: {}!",
-                    current,
-                ));
-            }
-
-            previous = current;
-        }
-
-        Ok(())
-    }
-}
-
 impl TryFrom<ComputeSpec> for ParsedSpec {
    type Error = String;
    fn try_from(spec: ComputeSpec) -> Result<Self, String> {
@@ -293,7 +240,6 @@ impl TryFrom<ComputeSpec> for ParsedSpec {
        } else {
            spec.safekeeper_connstrings.clone()
        };
-
        let storage_auth_token = spec.storage_auth_token.clone();
        let tenant_id: TenantId = if let Some(tenant_id) = spec.tenant_id {
            tenant_id
@@ -328,7 +274,7 @@ impl TryFrom<ComputeSpec> for ParsedSpec {
            .clone()
            .or_else(|| spec.cluster.settings.find("neon.endpoint_storage_token"));

-        let res = ParsedSpec {
+        Ok(ParsedSpec {
            spec,
            pageserver_connstr,
            safekeeper_connstrings,
@@ -337,11 +283,7 @@ impl TryFrom<ComputeSpec> for ParsedSpec {
            timeline_id,
            endpoint_storage_addr,
            endpoint_storage_token,
-        };
-
-        // Now check validity of the parsed specification
-        res.validate()?;
-        Ok(res)
+        })
    }
 }

@@ -408,11 +350,14 @@ impl ComputeNode {
        // that can affect `compute_ctl` and prevent it from properly configuring the database schema.
        // Unset them via connection string options before connecting to the database.
        // N.B. keep it in sync with `ZENITH_OPTIONS` in `get_maintenance_client()`.
+        //
+        // TODO(ololobus): we currently pass `-c default_transaction_read_only=off` from control plane
+        // as well. After rolling out this code, we can remove this parameter from control plane.
+        // In the meantime, double-passing is fine, the last value is applied.
+        // See: <https://github.com/neondatabase/cloud/blob/133dd8c4dbbba40edfbad475bf6a45073ca63faf/goapp/controlplane/internal/pkg/compute/provisioner/provisioner_common.go#L70>
        const EXTRA_OPTIONS: &str = "-c role=cloud_admin -c default_transaction_read_only=off -c search_path=public -c statement_timeout=0";
        let options = match conn_conf.get_options() {
-            // Allow the control plane to override any options set by the
-            // compute
-            Some(options) => format!("{} {}", EXTRA_OPTIONS, options),
+            Some(options) => format!("{} {}", options, EXTRA_OPTIONS),
            None => EXTRA_OPTIONS.to_string(),
        };
        conn_conf.options(&options);
@@ -420,7 +365,7 @@ impl ComputeNode {

        let mut new_state = ComputeState::new();
        if let Some(spec) = config.spec {
-            let pspec = ParsedSpec::try_from(spec).map_err(|msg| anyhow!(msg))?;
+            let pspec = ParsedSpec::try_from(spec).map_err(|msg| anyhow::anyhow!(msg))?;
            new_state.pspec = Some(pspec);
        }

@@ -447,7 +392,7 @@ impl ComputeNode {
        // because QEMU will already have its memory allocated from the host, and
        // the necessary binaries will already be cached.
        if cli_spec.is_none() {
-            this.prewarm_postgres_vm_memory()?;
+            this.prewarm_postgres()?;
        }

        // Set the up metric with Empty status before starting the HTTP server.
@@ -540,21 +485,12 @@ impl ComputeNode {
        // Reap the postgres process
        delay_exit |= this.cleanup_after_postgres_exit()?;

-        // /terminate returns LSN. If we don't sleep at all, connection will break and we
-        // won't get result. If we sleep too much, tests will take significantly longer
-        // and Github Action run will error out
-        let sleep_duration = if delay_exit {
-            Duration::from_secs(30)
-        } else {
-            Duration::from_millis(300)
-        };
-
        // 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");
+            std::thread::sleep(Duration::from_secs(30));
        }
-        std::thread::sleep(sleep_duration);
        Ok(exit_code)
    }

@@ -663,8 +599,6 @@ impl ComputeNode {
            });
        }

-        let tls_config = self.tls_config(&pspec.spec);
-
        // If there are any remote extensions in shared_preload_libraries, start downloading them
        if pspec.spec.remote_extensions.is_some() {
            let (this, spec) = (self.clone(), pspec.spec.clone());
@@ -721,7 +655,7 @@ impl ComputeNode {
            info!("tuning pgbouncer");

            let pgbouncer_settings = pgbouncer_settings.clone();
-            let tls_config = tls_config.clone();
+            let tls_config = self.compute_ctl_config.tls.clone();

            // Spawn a background task to do the tuning,
            // so that we don't block the main thread that starts Postgres.
@@ -740,10 +674,7 @@ impl ComputeNode {

            // Spawn a background task to do the configuration,
            // so that we don't block the main thread that starts Postgres.
-
-            let mut local_proxy = local_proxy.clone();
-            local_proxy.tls = tls_config.clone();
-
+            let local_proxy = local_proxy.clone();
            let _handle = tokio::spawn(async move {
                if let Err(err) = local_proxy::configure(&local_proxy) {
                    error!("error while configuring local_proxy: {err:?}");
@@ -764,18 +695,25 @@ impl ComputeNode {
                let log_directory_path = Path::new(&self.params.pgdata).join("log");
                let log_directory_path = log_directory_path.to_string_lossy().to_string();

-                // Add project_id,endpoint_id to identify the logs.
+                // Add project_id,endpoint_id tag to identify the logs.
                //
                // These ids are passed from cplane,
-                let endpoint_id = pspec.spec.endpoint_id.as_deref().unwrap_or("");
-                let project_id = pspec.spec.project_id.as_deref().unwrap_or("");
+                // for backwards compatibility (old computes that don't have them),
+                // we set them to None.
+                // TODO: Clean up this code when all computes have them.
+                let tag: Option<String> = match (
+                    pspec.spec.project_id.as_deref(),
+                    pspec.spec.endpoint_id.as_deref(),
+                ) {
+                    (Some(project_id), Some(endpoint_id)) => {
+                        Some(format!("{project_id}/{endpoint_id}"))
+                    }
+                    (Some(project_id), None) => Some(format!("{project_id}/None")),
+                    (None, Some(endpoint_id)) => Some(format!("None,{endpoint_id}")),
+                    (None, None) => None,
+                };

-                configure_audit_rsyslog(
-                    log_directory_path.clone(),
-                    endpoint_id,
-                    project_id,
-                    &remote_endpoint,
-                )?;
+                configure_audit_rsyslog(log_directory_path.clone(), tag, &remote_endpoint)?;

                // Launch a background task to clean up the audit logs
                launch_pgaudit_gc(log_directory_path);
@@ -811,7 +749,17 @@ impl ComputeNode {

            let conf = self.get_tokio_conn_conf(None);
            tokio::task::spawn(async {
-                let _ = installed_extensions(conf).await;
+                let res = get_installed_extensions(conf).await;
+                match res {
+                    Ok(extensions) => {
+                        info!(
+                            "[NEON_EXT_STAT] {}",
+                            serde_json::to_string(&extensions)
+                                .expect("failed to serialize extensions list")
+                        );
+                    }
+                    Err(err) => error!("could not get installed extensions: {err:?}"),
+                }
            });
        }

@@ -841,11 +789,8 @@ impl ComputeNode {
        // Log metrics so that we can search for slow operations in logs
        info!(?metrics, postmaster_pid = %postmaster_pid, "compute start finished");

-        // Spawn the extension stats background task
-        self.spawn_extension_stats_task();
-
-        if pspec.spec.autoprewarm {
-            self.prewarm_lfc(None);
+        if pspec.spec.prewarm_lfc_on_startup {
+            self.prewarm_lfc();
        }
        Ok(())
    }
@@ -926,25 +871,20 @@ impl ComputeNode {
        // Maybe sync safekeepers again, to speed up next startup
        let compute_state = self.state.lock().unwrap().clone();
        let pspec = compute_state.pspec.as_ref().expect("spec must be set");
-        let lsn = if matches!(pspec.spec.mode, compute_api::spec::ComputeMode::Primary) {
+        if matches!(pspec.spec.mode, compute_api::spec::ComputeMode::Primary) {
            info!("syncing safekeepers on shutdown");
            let storage_auth_token = pspec.storage_auth_token.clone();
            let lsn = self.sync_safekeepers(storage_auth_token)?;
-            info!(%lsn, "synced safekeepers");
-            Some(lsn)
-        } else {
-            info!("not primary, not syncing safekeepers");
-            None
-        };
+            info!("synced safekeepers at lsn {lsn}");
+        }

        let mut delay_exit = false;
        let mut state = self.state.lock().unwrap();
-        state.terminate_flush_lsn = lsn;
-        if let ComputeStatus::TerminationPending { mode } = state.status {
+        if state.status == ComputeStatus::TerminationPending {
            state.status = ComputeStatus::Terminated;
            self.state_changed.notify_all();
            // we were asked to terminate gracefully, don't exit to avoid restart
-            delay_exit = mode == compute_api::responses::TerminateMode::Fast
+            delay_exit = true
        }
        drop(state);

@@ -1006,75 +946,6 @@ impl ComputeNode {
    #[instrument(skip_all, fields(%lsn))]
    fn try_get_basebackup(&self, compute_state: &ComputeState, lsn: Lsn) -> Result<()> {
        let spec = compute_state.pspec.as_ref().expect("spec must be set");
-        let shard0_connstr = spec.pageserver_connstr.split(',').next().unwrap();
-
-        match Url::parse(shard0_connstr)?.scheme() {
-            "postgres" | "postgresql" => self.try_get_basebackup_libpq(spec, lsn),
-            "grpc" => self.try_get_basebackup_grpc(spec, lsn),
-            scheme => return Err(anyhow!("unknown URL scheme {scheme}")),
-        }
-    }
-
-    fn try_get_basebackup_grpc(&self, spec: &ParsedSpec, lsn: Lsn) -> Result<()> {
-        let start_time = Instant::now();
-
-        let shard0_connstr = spec
-            .pageserver_connstr
-            .split(',')
-            .next()
-            .unwrap()
-            .to_string();
-
-        let chunks = tokio::runtime::Handle::current().block_on(async move {
-            let mut client = page_api::proto::PageServiceClient::connect(shard0_connstr).await?;
-
-            let req = page_api::proto::GetBaseBackupRequest {
-                lsn: lsn.0,
-                replica: false, // TODO: handle replicas, with LSN 0
-                full: false,
-            };
-            let mut req = tonic::Request::new(req);
-            let metadata = req.metadata_mut();
-            metadata.insert("neon-tenant-id", spec.tenant_id.to_string().parse()?);
-            metadata.insert("neon-timeline-id", spec.timeline_id.to_string().parse()?);
-            metadata.insert("neon-shard-id", "0000".to_string().parse()?); // TODO: shard count
-            if let Some(auth) = spec.storage_auth_token.as_ref() {
-                metadata.insert("authorization", format!("Bearer {auth}").parse()?);
-            }
-
-            let chunks = client.get_base_backup(req).await?.into_inner();
-            anyhow::Ok(chunks)
-        })?;
-        let pageserver_connect_micros = start_time.elapsed().as_micros() as u64;
-
-        // Convert the chunks stream into an AsyncRead
-        let stream_reader = StreamReader::new(
-            chunks.map(|chunk| chunk.map(|c| c.chunk).map_err(std::io::Error::other)),
-        );
-
-        // Wrap the AsyncRead into a blocking reader for compatibility with tar::Archive
-        let reader = tokio_util::io::SyncIoBridge::new(stream_reader);
-        let mut measured_reader = MeasuredReader::new(reader);
-        let mut bufreader = std::io::BufReader::new(&mut measured_reader);
-
-        // Read the archive directly from the `CopyOutReader`
-        //
-        // Set `ignore_zeros` so that unpack() reads all the Copy data and
-        // doesn't stop at the end-of-archive marker. Otherwise, if the server
-        // sends an Error after finishing the tarball, we will not notice it.
-        let mut ar = tar::Archive::new(&mut bufreader);
-        ar.set_ignore_zeros(true);
-        ar.unpack(&self.params.pgdata)?;
-
-        // Report metrics
-        let mut state = self.state.lock().unwrap();
-        state.metrics.pageserver_connect_micros = pageserver_connect_micros;
-        state.metrics.basebackup_bytes = measured_reader.get_byte_count() as u64;
-        state.metrics.basebackup_ms = start_time.elapsed().as_millis() as u64;
-        Ok(())
-    }
-
-    fn try_get_basebackup_libpq(&self, spec: &ParsedSpec, lsn: Lsn) -> Result<()> {
        let start_time = Instant::now();

        let shard0_connstr = spec.pageserver_connstr.split(',').next().unwrap();
@@ -1090,10 +961,12 @@ impl ComputeNode {
        }

        config.application_name("compute_ctl");
-        config.options(&format!(
-            "-c neon.compute_mode={}",
-            spec.spec.mode.to_type_str()
-        ));
+        if let Some(spec) = &compute_state.pspec {
+            config.options(&format!(
+                "-c neon.compute_mode={}",
+                spec.spec.mode.to_type_str()
+            ));
+        }

        // Connect to pageserver
        let mut client = config.connect(NoTls)?;
@@ -1167,7 +1040,10 @@ impl ComputeNode {
                    return result;
                }
                Err(ref e) if attempts < max_attempts => {
-                    warn!("Failed to get basebackup: {e:?} (attempt {attempts}/{max_attempts})");
+                    warn!(
+                        "Failed to get basebackup: {} (attempt {}/{})",
+                        e, attempts, max_attempts
+                    );
                    std::thread::sleep(std::time::Duration::from_millis(retry_period_ms as u64));
                    retry_period_ms *= 1.5;
                }
@@ -1339,15 +1215,13 @@ impl ComputeNode {
        let spec = &pspec.spec;
        let pgdata_path = Path::new(&self.params.pgdata);

-        let tls_config = self.tls_config(&pspec.spec);
-
        // Remove/create an empty pgdata directory and put configuration there.
        self.create_pgdata()?;
        config::write_postgres_conf(
            pgdata_path,
            &pspec.spec,
            self.params.internal_http_port,
-            tls_config,
+            &self.compute_ctl_config.tls,
        )?;

        // Syncing safekeepers is only safe with primary nodes: if a primary
@@ -1443,8 +1317,8 @@ impl ComputeNode {
    }

    /// Start and stop a postgres process to warm up the VM for startup.
-    pub fn prewarm_postgres_vm_memory(&self) -> Result<()> {
-        info!("prewarming VM memory");
+    pub fn prewarm_postgres(&self) -> Result<()> {
+        info!("prewarming");

        // Create pgdata
        let pgdata = &format!("{}.warmup", self.params.pgdata);
@@ -1486,7 +1360,7 @@ impl ComputeNode {
        kill(pm_pid, Signal::SIGQUIT)?;
        info!("sent SIGQUIT signal");
        pg.wait()?;
-        info!("done prewarming vm memory");
+        info!("done prewarming");

        // clean up
        let _ok = fs::remove_dir_all(pgdata);
@@ -1672,22 +1546,14 @@ impl ComputeNode {
                .clone(),
        );

-        let mut tls_config = None::<TlsConfig>;
-        if spec.features.contains(&ComputeFeature::TlsExperimental) {
-            tls_config = self.compute_ctl_config.tls.clone();
-        }
-
        let max_concurrent_connections = self.max_service_connections(compute_state, &spec);

        // Merge-apply spec & changes to PostgreSQL state.
        self.apply_spec_sql(spec.clone(), conf.clone(), max_concurrent_connections)?;

        if let Some(local_proxy) = &spec.clone().local_proxy_config {
-            let mut local_proxy = local_proxy.clone();
-            local_proxy.tls = tls_config.clone();
-
            info!("configuring local_proxy");
-            local_proxy::configure(&local_proxy).context("apply_config local_proxy")?;
+            local_proxy::configure(local_proxy).context("apply_config local_proxy")?;
        }

        // Run migrations separately to not hold up cold starts
@@ -1739,13 +1605,11 @@ impl ComputeNode {
    pub fn reconfigure(&self) -> Result<()> {
        let spec = self.state.lock().unwrap().pspec.clone().unwrap().spec;

-        let tls_config = self.tls_config(&spec);
-
        if let Some(ref pgbouncer_settings) = spec.pgbouncer_settings {
            info!("tuning pgbouncer");

            let pgbouncer_settings = pgbouncer_settings.clone();
-            let tls_config = tls_config.clone();
+            let tls_config = self.compute_ctl_config.tls.clone();

            // Spawn a background task to do the tuning,
            // so that we don't block the main thread that starts Postgres.
@@ -1763,7 +1627,7 @@ impl ComputeNode {
            // Spawn a background task to do the configuration,
            // so that we don't block the main thread that starts Postgres.
            let mut local_proxy = local_proxy.clone();
-            local_proxy.tls = tls_config.clone();
+            local_proxy.tls = self.compute_ctl_config.tls.clone();
            tokio::spawn(async move {
                if let Err(err) = local_proxy::configure(&local_proxy) {
                    error!("error while configuring local_proxy: {err:?}");
@@ -1781,7 +1645,7 @@ impl ComputeNode {
            pgdata_path,
            &spec,
            self.params.internal_http_port,
-            tls_config,
+            &self.compute_ctl_config.tls,
        )?;

        if !spec.skip_pg_catalog_updates {
@@ -1879,7 +1743,7 @@ impl ComputeNode {

                            // exit loop
                            ComputeStatus::Failed
-                            | ComputeStatus::TerminationPending { .. }
+                            | ComputeStatus::TerminationPending
                            | ComputeStatus::Terminated => break 'cert_update,

                            // wait
@@ -1901,14 +1765,6 @@ impl ComputeNode {
        }
    }

-    pub fn tls_config(&self, spec: &ComputeSpec) -> &Option<TlsConfig> {
-        if spec.features.contains(&ComputeFeature::TlsExperimental) {
-            &self.compute_ctl_config.tls
-        } else {
-            &None::<TlsConfig>
-        }
-    }
-
    /// Update the `last_active` in the shared state, but ensure that it's a more recent one.
    pub fn update_last_active(&self, last_active: Option<DateTime<Utc>>) {
        let mut state = self.state.lock().unwrap();
@@ -2045,7 +1901,7 @@ LIMIT 100",
            self.params
                .remote_ext_base_url
                .as_ref()
-                .ok_or(DownloadError::BadInput(anyhow!(
+                .ok_or(DownloadError::BadInput(anyhow::anyhow!(
                    "Remote extensions storage is not configured",
                )))?;

@@ -2241,7 +2097,7 @@ LIMIT 100",
        let remote_extensions = spec
            .remote_extensions
            .as_ref()
-            .ok_or(anyhow!("Remote extensions are not configured"))?;
+            .ok_or(anyhow::anyhow!("Remote extensions are not configured"))?;

        info!("parse shared_preload_libraries from spec.cluster.settings");
        let mut libs_vec = Vec::new();
@@ -2343,105 +2199,14 @@ LIMIT 100",
            info!("Pageserver config changed");
        }
    }
-
-    pub fn spawn_extension_stats_task(&self) {
-        let conf = self.tokio_conn_conf.clone();
-        let installed_extensions_collection_interval =
-            self.params.installed_extensions_collection_interval;
-        tokio::spawn(async move {
-            // An initial sleep is added to ensure that two collections don't happen at the same time.
-            // The first collection happens during compute startup.
-            tokio::time::sleep(tokio::time::Duration::from_secs(
-                installed_extensions_collection_interval,
-            ))
-            .await;
-            let mut interval = tokio::time::interval(tokio::time::Duration::from_secs(
-                installed_extensions_collection_interval,
-            ));
-            loop {
-                interval.tick().await;
-                let _ = installed_extensions(conf.clone()).await;
-            }
-        });
-    }
 }

-pub async fn installed_extensions(conf: tokio_postgres::Config) -> Result<()> {
-    let res = get_installed_extensions(conf).await;
-    match res {
-        Ok(extensions) => {
-            info!(
-                "[NEON_EXT_STAT] {}",
-                serde_json::to_string(&extensions).expect("failed to serialize extensions list")
-            );
-        }
-        Err(err) => error!("could not get installed extensions: {err:?}"),
-    }
-    Ok(())
-}
-
-pub fn forward_termination_signal(dev_mode: bool) {
+pub fn forward_termination_signal() {
    let ss_pid = SYNC_SAFEKEEPERS_PID.load(Ordering::SeqCst);
    if ss_pid != 0 {
        let ss_pid = nix::unistd::Pid::from_raw(ss_pid as i32);
        kill(ss_pid, Signal::SIGTERM).ok();
    }
-
-    if !dev_mode {
-        //  Terminate pgbouncer with SIGKILL
-        match pid_file::read(PGBOUNCER_PIDFILE.into()) {
-            Ok(pid_file::PidFileRead::LockedByOtherProcess(pid)) => {
-                info!("sending SIGKILL to pgbouncer process pid: {}", pid);
-                if let Err(e) = kill(pid, Signal::SIGKILL) {
-                    error!("failed to terminate pgbouncer: {}", e);
-                }
-            }
-            // pgbouncer does not lock the pid file, so we read and kill the process directly
-            Ok(pid_file::PidFileRead::NotHeldByAnyProcess(_)) => {
-                if let Ok(pid_str) = std::fs::read_to_string(PGBOUNCER_PIDFILE) {
-                    if let Ok(pid) = pid_str.trim().parse::<i32>() {
-                        info!(
-                            "sending SIGKILL to pgbouncer process pid: {} (from unlocked pid file)",
-                            pid
-                        );
-                        if let Err(e) = kill(Pid::from_raw(pid), Signal::SIGKILL) {
-                            error!("failed to terminate pgbouncer: {}", e);
-                        }
-                    }
-                } else {
-                    info!("pgbouncer pid file exists but process not running");
-                }
-            }
-            Ok(pid_file::PidFileRead::NotExist) => {
-                info!("pgbouncer pid file not found, process may not be running");
-            }
-            Err(e) => {
-                error!("error reading pgbouncer pid file: {}", e);
-            }
-        }
-
-        // Terminate local_proxy
-        match pid_file::read("/etc/local_proxy/pid".into()) {
-            Ok(pid_file::PidFileRead::LockedByOtherProcess(pid)) => {
-                info!("sending SIGTERM to local_proxy process pid: {}", pid);
-                if let Err(e) = kill(pid, Signal::SIGTERM) {
-                    error!("failed to terminate local_proxy: {}", e);
-                }
-            }
-            Ok(pid_file::PidFileRead::NotHeldByAnyProcess(_)) => {
-                info!("local_proxy PID file exists but process not running");
-            }
-            Ok(pid_file::PidFileRead::NotExist) => {
-                info!("local_proxy PID file not found, process may not be running");
-            }
-            Err(e) => {
-                error!("error reading local_proxy PID file: {}", e);
-            }
-        }
-    } else {
-        info!("Skipping pgbouncer and local_proxy termination because in dev mode");
-    }
-
    let pg_pid = PG_PID.load(Ordering::SeqCst);
    if pg_pid != 0 {
        let pg_pid = nix::unistd::Pid::from_raw(pg_pid as i32);
@@ -2474,21 +2239,3 @@ impl<T: 'static> JoinSetExt<T> for tokio::task::JoinSet<T> {
        })
    }
 }
-
-#[cfg(test)]
-mod tests {
-    use std::fs::File;
-
-    use super::*;
-
-    #[test]
-    fn duplicate_safekeeper_connstring() {
-        let file = File::open("tests/cluster_spec.json").unwrap();
-        let spec: ComputeSpec = serde_json::from_reader(file).unwrap();
-
-        match ParsedSpec::try_from(spec.clone()) {
-            Ok(_p) => panic!("Failed to detect duplicate entry"),
-            Err(e) => assert!(e.starts_with("duplicate entry in safekeeper_connstrings:")),
-        };
-    }
-}
--- a/compute_tools/src/compute_prewarm.rs
+++ b/compute_tools/src/compute_prewarm.rs
@@ -25,16 +25,11 @@ struct EndpointStoragePair {
 }

 const KEY: &str = "lfc_state";
-impl EndpointStoragePair {
-    /// endpoint_id is set to None while prewarming from other endpoint, see replica promotion
-    /// If not None, takes precedence over pspec.spec.endpoint_id
-    fn from_spec_and_endpoint(
-        pspec: &crate::compute::ParsedSpec,
-        endpoint_id: Option<String>,
-    ) -> Result<Self> {
-        let endpoint_id = endpoint_id.as_ref().or(pspec.spec.endpoint_id.as_ref());
-        let Some(ref endpoint_id) = endpoint_id else {
-            bail!("pspec.endpoint_id missing, other endpoint_id not provided")
+impl TryFrom<&crate::compute::ParsedSpec> for EndpointStoragePair {
+    type Error = anyhow::Error;
+    fn try_from(pspec: &crate::compute::ParsedSpec) -> Result<Self, Self::Error> {
+        let Some(ref endpoint_id) = pspec.spec.endpoint_id else {
+            bail!("pspec.endpoint_id missing")
        };
        let Some(ref base_uri) = pspec.endpoint_storage_addr else {
            bail!("pspec.endpoint_storage_addr missing")
@@ -89,7 +84,7 @@ impl ComputeNode {
    }

    /// Returns false if there is a prewarm request ongoing, true otherwise
-    pub fn prewarm_lfc(self: &Arc<Self>, from_endpoint: Option<String>) -> bool {
+    pub fn prewarm_lfc(self: &Arc<Self>) -> bool {
        crate::metrics::LFC_PREWARM_REQUESTS.inc();
        {
            let state = &mut self.state.lock().unwrap().lfc_prewarm_state;
@@ -102,7 +97,7 @@ impl ComputeNode {

        let cloned = self.clone();
        spawn(async move {
-            let Err(err) = cloned.prewarm_impl(from_endpoint).await else {
+            let Err(err) = cloned.prewarm_impl().await else {
                cloned.state.lock().unwrap().lfc_prewarm_state = LfcPrewarmState::Completed;
                return;
            };
@@ -114,14 +109,13 @@ impl ComputeNode {
        true
    }

-    /// from_endpoint: None for endpoint managed by this compute_ctl
-    fn endpoint_storage_pair(&self, from_endpoint: Option<String>) -> Result<EndpointStoragePair> {
+    fn endpoint_storage_pair(&self) -> Result<EndpointStoragePair> {
        let state = self.state.lock().unwrap();
-        EndpointStoragePair::from_spec_and_endpoint(state.pspec.as_ref().unwrap(), from_endpoint)
+        state.pspec.as_ref().unwrap().try_into()
    }

-    async fn prewarm_impl(&self, from_endpoint: Option<String>) -> Result<()> {
-        let EndpointStoragePair { url, token } = self.endpoint_storage_pair(from_endpoint)?;
+    async fn prewarm_impl(&self) -> Result<()> {
+        let EndpointStoragePair { url, token } = self.endpoint_storage_pair()?;
        info!(%url, "requesting LFC state from endpoint storage");

        let request = Client::new().get(&url).bearer_auth(token);
@@ -179,7 +173,7 @@ impl ComputeNode {
    }

    async fn offload_lfc_impl(&self) -> Result<()> {
-        let EndpointStoragePair { url, token } = self.endpoint_storage_pair(None)?;
+        let EndpointStoragePair { url, token } = self.endpoint_storage_pair()?;
        info!(%url, "requesting LFC state from postgres");

        let mut compressed = Vec::new();
--- a/compute_tools/src/config_template/compute_audit_rsyslog_template.conf
+++ b/compute_tools/src/config_template/compute_audit_rsyslog_template.conf
@@ -2,24 +2,10 @@
 module(load="imfile")

 # Input configuration for log files in the specified directory
-# The messages can be multiline. The start of the message is a timestamp
-# in "%Y-%m-%d %H:%M:%S.%3N GMT" (so timezone hardcoded).
-# Replace log_directory with the directory containing the log files
-input(type="imfile" File="{log_directory}/*.log"
-  Tag="pgaudit_log" Severity="info" Facility="local5"
-  startmsg.regex="^[[:digit:]]{{4}}-[[:digit:]]{{2}}-[[:digit:]]{{2}} [[:digit:]]{{2}}:[[:digit:]]{{2}}:[[:digit:]]{{2}}.[[:digit:]]{{3}} GMT,")
-
+# Replace {log_directory} with the directory containing the log files
+input(type="imfile" File="{log_directory}/*.log" Tag="{tag}" Severity="info" Facility="local0")
 # the directory to store rsyslog state files
 global(workDirectory="/var/log/rsyslog")

-# Construct json, endpoint_id and project_id as additional metadata
-set $.json_log!endpoint_id = "{endpoint_id}";
-set $.json_log!project_id = "{project_id}";
-set $.json_log!msg = $msg;
-
-# Template suitable for rfc5424 syslog format
-template(name="PgAuditLog" type="string"
-    string="<%PRI%>1 %TIMESTAMP:::date-rfc3339% %HOSTNAME% - - - - %$.json_log%")
-
-# Forward to remote syslog receiver (@@<hostname>:<port>;format
-local5.info @@{remote_endpoint};PgAuditLog
+# Forward logs to remote syslog server
+*.* @@{remote_endpoint}
--- a/compute_tools/src/extension_server.rs
+++ b/compute_tools/src/extension_server.rs
@@ -83,7 +83,6 @@ use reqwest::StatusCode;
 use tar::Archive;
 use tracing::info;
 use tracing::log::warn;
-use url::Url;
 use zstd::stream::read::Decoder;

 use crate::metrics::{REMOTE_EXT_REQUESTS_TOTAL, UNKNOWN_HTTP_STATUS};
@@ -159,7 +158,7 @@ fn parse_pg_version(human_version: &str) -> PostgresMajorVersion {
 pub async fn download_extension(
    ext_name: &str,
    ext_path: &RemotePath,
-    remote_ext_base_url: &Url,
+    remote_ext_base_url: &str,
    pgbin: &str,
 ) -> Result<u64> {
    info!("Download extension {:?} from {:?}", ext_name, ext_path);
@@ -271,14 +270,10 @@ pub fn create_control_files(remote_extensions: &RemoteExtSpec, pgbin: &str) {
 }

 // Do request to extension storage proxy, e.g.,
-// curl http://pg-ext-s3-gateway.pg-ext-s3-gateway.svc.cluster.local/latest/v15/extensions/anon.tar.zst
+// curl http://pg-ext-s3-gateway/latest/v15/extensions/anon.tar.zst
 // using HTTP GET and return the response body as bytes.
-async fn download_extension_tar(remote_ext_base_url: &Url, ext_path: &str) -> Result<Bytes> {
-    let uri = remote_ext_base_url.join(ext_path).with_context(|| {
-        format!(
-            "failed to create the remote extension URI for {ext_path} using {remote_ext_base_url}"
-        )
-    })?;
+async fn download_extension_tar(remote_ext_base_url: &str, ext_path: &str) -> Result<Bytes> {
+    let uri = format!("{}/{}", remote_ext_base_url, ext_path);
    let filename = Path::new(ext_path)
        .file_name()
        .unwrap_or_else(|| std::ffi::OsStr::new("unknown"))
@@ -288,7 +283,7 @@ async fn download_extension_tar(remote_ext_base_url: &Url, ext_path: &str) -> Re

    info!("Downloading extension file '{}' from uri {}", filename, uri);

-    match do_extension_server_request(uri).await {
+    match do_extension_server_request(&uri).await {
        Ok(resp) => {
            info!("Successfully downloaded remote extension data {}", ext_path);
            REMOTE_EXT_REQUESTS_TOTAL
@@ -307,7 +302,7 @@ async fn download_extension_tar(remote_ext_base_url: &Url, ext_path: &str) -> Re

 // Do a single remote extensions server request.
 // Return result or (error message + stringified status code) in case of any failures.
-async fn do_extension_server_request(uri: Url) -> Result<Bytes, (String, String)> {
+async fn do_extension_server_request(uri: &str) -> Result<Bytes, (String, String)> {
    let resp = reqwest::get(uri).await.map_err(|e| {
        (
            format!(
--- a/compute_tools/src/http/mod.rs
+++ b/compute_tools/src/http/mod.rs
@@ -48,9 +48,11 @@ impl JsonResponse {

    /// Create an error response related to the compute being in an invalid state
    pub(self) fn invalid_status(status: ComputeStatus) -> Response {
-        Self::error(
+        Self::create_response(
            StatusCode::PRECONDITION_FAILED,
-            format!("invalid compute status: {status}"),
+            &GenericAPIError {
+                error: format!("invalid compute status: {status}"),
+            },
        )
    }
 }
--- a/compute_tools/src/http/routes/configure.rs
+++ b/compute_tools/src/http/routes/configure.rs
@@ -22,7 +22,7 @@ pub(in crate::http) async fn configure(
    State(compute): State<Arc<ComputeNode>>,
    request: Json<ConfigurationRequest>,
 ) -> Response {
-    let pspec = match ParsedSpec::try_from(request.0.spec) {
+    let pspec = match ParsedSpec::try_from(request.spec.clone()) {
        Ok(p) => p,
        Err(e) => return JsonResponse::error(StatusCode::BAD_REQUEST, e),
    };
--- a/compute_tools/src/http/routes/lfc.rs
+++ b/compute_tools/src/http/routes/lfc.rs
@@ -2,7 +2,6 @@ use crate::compute_prewarm::LfcPrewarmStateWithProgress;
 use crate::http::JsonResponse;
 use axum::response::{IntoResponse, Response};
 use axum::{Json, http::StatusCode};
-use axum_extra::extract::OptionalQuery;
 use compute_api::responses::LfcOffloadState;
 type Compute = axum::extract::State<std::sync::Arc<crate::compute::ComputeNode>>;

@@ -17,16 +16,8 @@ pub(in crate::http) async fn offload_state(compute: Compute) -> Json<LfcOffloadS
    Json(compute.lfc_offload_state())
 }

-#[derive(serde::Deserialize)]
-pub struct PrewarmQuery {
-    pub from_endpoint: String,
-}
-
-pub(in crate::http) async fn prewarm(
-    compute: Compute,
-    OptionalQuery(query): OptionalQuery<PrewarmQuery>,
-) -> Response {
-    if compute.prewarm_lfc(query.map(|q| q.from_endpoint)) {
+pub(in crate::http) async fn prewarm(compute: Compute) -> Response {
+    if compute.prewarm_lfc() {
        StatusCode::ACCEPTED.into_response()
    } else {
        JsonResponse::error(
--- a/compute_tools/src/http/routes/terminate.rs
+++ b/compute_tools/src/http/routes/terminate.rs
@@ -1,42 +1,32 @@
-use crate::compute::{ComputeNode, forward_termination_signal};
-use crate::http::JsonResponse;
-use axum::extract::State;
-use axum::response::Response;
-use axum_extra::extract::OptionalQuery;
-use compute_api::responses::{ComputeStatus, TerminateResponse};
-use http::StatusCode;
-use serde::Deserialize;
 use std::sync::Arc;
+
+use axum::extract::State;
+use axum::response::{IntoResponse, Response};
+use compute_api::responses::ComputeStatus;
+use http::StatusCode;
 use tokio::task;
 use tracing::info;

-#[derive(Deserialize, Default)]
-pub struct TerminateQuery {
-    mode: compute_api::responses::TerminateMode,
-}
+use crate::compute::{ComputeNode, forward_termination_signal};
+use crate::http::JsonResponse;

 /// Terminate the compute.
-pub(in crate::http) async fn terminate(
-    State(compute): State<Arc<ComputeNode>>,
-    OptionalQuery(terminate): OptionalQuery<TerminateQuery>,
-) -> Response {
-    let mode = terminate.unwrap_or_default().mode;
+pub(in crate::http) async fn terminate(State(compute): State<Arc<ComputeNode>>) -> Response {
    {
        let mut state = compute.state.lock().unwrap();
        if state.status == ComputeStatus::Terminated {
-            return JsonResponse::success(StatusCode::CREATED, state.terminate_flush_lsn);
+            return StatusCode::CREATED.into_response();
        }

        if !matches!(state.status, ComputeStatus::Empty | ComputeStatus::Running) {
            return JsonResponse::invalid_status(state.status);
        }
-        state.set_status(
-            ComputeStatus::TerminationPending { mode },
-            &compute.state_changed,
-        );
+
+        state.set_status(ComputeStatus::TerminationPending, &compute.state_changed);
+        drop(state);
    }

-    forward_termination_signal(false);
+    forward_termination_signal();
    info!("sent signal and notified waiters");

    // Spawn a blocking thread to wait for compute to become Terminated.
@@ -44,7 +34,7 @@ pub(in crate::http) async fn terminate(
    // be able to serve other requests while some particular request
    // is waiting for compute to finish configuration.
    let c = compute.clone();
-    let lsn = task::spawn_blocking(move || {
+    task::spawn_blocking(move || {
        let mut state = c.state.lock().unwrap();
        while state.status != ComputeStatus::Terminated {
            state = c.state_changed.wait(state).unwrap();
@@ -54,10 +44,11 @@ pub(in crate::http) async fn terminate(
                state.status
            );
        }
-        state.terminate_flush_lsn
    })
    .await
    .unwrap();
+
    info!("terminated Postgres");
-    JsonResponse::success(StatusCode::OK, TerminateResponse { lsn })
+
+    StatusCode::OK.into_response()
 }
--- a/compute_tools/src/lib.rs
+++ b/compute_tools/src/lib.rs
@@ -22,7 +22,6 @@ mod migration;
 pub mod monitor;
 pub mod params;
 pub mod pg_helpers;
-pub mod pgbouncer;
 pub mod rsyslog;
 pub mod spec;
 mod spec_apply;
--- a/compute_tools/src/monitor.rs
+++ b/compute_tools/src/monitor.rs
@@ -13,12 +13,6 @@ use crate::metrics::{PG_CURR_DOWNTIME_MS, PG_TOTAL_DOWNTIME_MS};

 const MONITOR_CHECK_INTERVAL: Duration = Duration::from_millis(500);

-/// Struct to store runtime state of the compute monitor thread.
-/// In theory, this could be a part of `Compute`, but i)
-/// this state is expected to be accessed only by single thread,
-/// so we don't need to care about locking; ii) `Compute` is
-/// already quite big. Thus, it seems to be a good idea to keep
-/// all the activity/health monitoring parts here.
 struct ComputeMonitor {
    compute: Arc<ComputeNode>,

@@ -76,38 +70,12 @@ impl ComputeMonitor {
        )
    }

-    /// Check if compute is in some terminal or soon-to-be-terminal
-    /// state, then return `true`, signalling the caller that it
-    /// should exit gracefully. Otherwise, return `false`.
-    fn check_interrupts(&mut self) -> bool {
-        let compute_status = self.compute.get_status();
-        if matches!(
-            compute_status,
-            ComputeStatus::Terminated
-                | ComputeStatus::TerminationPending { .. }
-                | ComputeStatus::Failed
-        ) {
-            info!(
-                "compute is in {} status, stopping compute monitor",
-                compute_status
-            );
-            return true;
-        }
-
-        false
-    }
-
    /// Spin in a loop and figure out the last activity time in the Postgres.
-    /// Then update it in the shared state. This function currently never
-    /// errors out explicitly, but there is a graceful termination path.
-    /// Every time we receive an error trying to check Postgres, we use
-    /// [`ComputeMonitor::check_interrupts()`] because it could be that
-    /// compute is being terminated already, then we can exit gracefully
-    /// to not produce errors' noise in the log.
+    /// Then update it in the shared state. This function never errors out.
    /// NB: the only expected panic is at `Mutex` unwrap(), all other errors
    /// should be handled gracefully.
    #[instrument(skip_all)]
-    pub fn run(&mut self) -> anyhow::Result<()> {
+    pub fn run(&mut self) {
        // Suppose that `connstr` doesn't change
        let connstr = self.compute.params.connstr.clone();
        let conf = self
@@ -125,10 +93,6 @@ impl ComputeMonitor {
        info!("starting compute monitor for {}", connstr);

        loop {
-            if self.check_interrupts() {
-                break;
-            }
-
            match &mut client {
                Ok(cli) => {
                    if cli.is_closed() {
@@ -136,10 +100,6 @@ impl ComputeMonitor {
                            downtime_info = self.downtime_info(),
                            "connection to Postgres is closed, trying to reconnect"
                        );
-                        if self.check_interrupts() {
-                            break;
-                        }
-
                        self.report_down();

                        // Connection is closed, reconnect and try again.
@@ -151,19 +111,15 @@ impl ComputeMonitor {
                                self.compute.update_last_active(self.last_active);
                            }
                            Err(e) => {
-                                error!(
-                                    downtime_info = self.downtime_info(),
-                                    "could not check Postgres: {}", e
-                                );
-                                if self.check_interrupts() {
-                                    break;
-                                }
-
                                // Although we have many places where we can return errors in `check()`,
                                // normally it shouldn't happen. I.e., we will likely return error if
                                // connection got broken, query timed out, Postgres returned invalid data, etc.
                                // In all such cases it's suspicious, so let's report this as downtime.
                                self.report_down();
+                                error!(
+                                    downtime_info = self.downtime_info(),
+                                    "could not check Postgres: {}", e
+                                );

                                // Reconnect to Postgres just in case. During tests, I noticed
                                // that queries in `check()` can fail with `connection closed`,
@@ -180,10 +136,6 @@ impl ComputeMonitor {
                        downtime_info = self.downtime_info(),
                        "could not connect to Postgres: {}, retrying", e
                    );
-                    if self.check_interrupts() {
-                        break;
-                    }
-
                    self.report_down();

                    // Establish a new connection and try again.
@@ -195,9 +147,6 @@ impl ComputeMonitor {
            self.last_checked = Utc::now();
            thread::sleep(MONITOR_CHECK_INTERVAL);
        }
-
-        // Graceful termination path
-        Ok(())
    }

    #[instrument(skip_all)]
@@ -480,10 +429,7 @@ pub fn launch_monitor(compute: &Arc<ComputeNode>) -> thread::JoinHandle<()> {
        .spawn(move || {
            let span = span!(Level::INFO, "compute_monitor");
            let _enter = span.enter();
-            match monitor.run() {
-                Ok(_) => info!("compute monitor thread terminated gracefully"),
-                Err(err) => error!("compute monitor thread terminated abnormally {:?}", err),
-            }
+            monitor.run();
        })
        .expect("cannot launch compute monitor thread")
 }
--- a/compute_tools/src/pg_helpers.rs
+++ b/compute_tools/src/pg_helpers.rs
@@ -213,10 +213,8 @@ impl Escaping for PgIdent {

        // Find the first suitable tag that is not present in the string.
        // Postgres' max role/DB name length is 63 bytes, so even in the
-        // worst case it won't take long. Outer tag is always `tag + "x"`,
-        // so if `tag` is not present in the string, `outer_tag` is not
-        // present in the string either.
-        while self.contains(&tag.to_string()) {
+        // worst case it won't take long.
+        while self.contains(&format!("${tag}$")) || self.contains(&format!("${outer_tag}$")) {
            tag += "x";
            outer_tag = tag.clone() + "x";
        }
--- a/compute_tools/src/pgbouncer.rs
+++ b/compute_tools/src/pgbouncer.rs
@@ -1 +0,0 @@
-pub const PGBOUNCER_PIDFILE: &str = "/tmp/pgbouncer.pid";
--- a/compute_tools/src/rsyslog.rs
+++ b/compute_tools/src/rsyslog.rs
@@ -27,40 +27,6 @@ fn get_rsyslog_pid() -> Option<String> {
    }
 }

-fn wait_for_rsyslog_pid() -> Result<String, anyhow::Error> {
-    const MAX_WAIT: Duration = Duration::from_secs(5);
-    const INITIAL_SLEEP: Duration = Duration::from_millis(2);
-
-    let mut sleep_duration = INITIAL_SLEEP;
-    let start = std::time::Instant::now();
-    let mut attempts = 1;
-
-    for attempt in 1.. {
-        attempts = attempt;
-        match get_rsyslog_pid() {
-            Some(pid) => return Ok(pid),
-            None => {
-                if start.elapsed() >= MAX_WAIT {
-                    break;
-                }
-                info!(
-                    "rsyslogd is not running, attempt {}. Sleeping for {} ms",
-                    attempt,
-                    sleep_duration.as_millis()
-                );
-                std::thread::sleep(sleep_duration);
-                sleep_duration *= 2;
-            }
-        }
-    }
-
-    Err(anyhow::anyhow!(
-        "rsyslogd is not running after waiting for {} seconds and {} attempts",
-        attempts,
-        start.elapsed().as_secs()
-    ))
-}
-
 // Restart rsyslogd to apply the new configuration.
 // This is necessary, because there is no other way to reload the rsyslog configuration.
 //
@@ -70,29 +36,27 @@ fn wait_for_rsyslog_pid() -> Result<String, anyhow::Error> {
 // TODO: test it properly
 //
 fn restart_rsyslog() -> Result<()> {
+    let old_pid = get_rsyslog_pid().context("rsyslogd is not running")?;
+    info!("rsyslogd is running with pid: {}, restart it", old_pid);
+
    // kill it to restart
    let _ = Command::new("pkill")
        .arg("rsyslogd")
        .output()
-        .context("Failed to restart rsyslogd")?;
-
-    // ensure rsyslogd is running
-    wait_for_rsyslog_pid()?;
+        .context("Failed to stop rsyslogd")?;

    Ok(())
 }

 pub fn configure_audit_rsyslog(
    log_directory: String,
-    endpoint_id: &str,
-    project_id: &str,
+    tag: Option<String>,
    remote_endpoint: &str,
 ) -> Result<()> {
    let config_content: String = format!(
        include_str!("config_template/compute_audit_rsyslog_template.conf"),
        log_directory = log_directory,
-        endpoint_id = endpoint_id,
-        project_id = project_id,
+        tag = tag.unwrap_or("".to_string()),
        remote_endpoint = remote_endpoint
    );

@@ -167,11 +131,15 @@ pub fn configure_postgres_logs_export(conf: PostgresLogsRsyslogConfig) -> Result
        return Ok(());
    }

-    // Nothing to configure
+    // When new config is empty we can simply remove the configuration file.
    if new_config.is_empty() {
-        // When the configuration is removed, PostgreSQL will stop sending data
-        // to the files watched by rsyslog, so restarting rsyslog is more effort
-        // than just ignoring this change.
+        info!("removing rsyslog config file: {}", POSTGRES_LOGS_CONF_PATH);
+        match std::fs::remove_file(POSTGRES_LOGS_CONF_PATH) {
+            Ok(_) => {}
+            Err(err) if err.kind() == ErrorKind::NotFound => {}
+            Err(err) => return Err(err.into()),
+        }
+        restart_rsyslog()?;
        return Ok(());
    }

--- a/compute_tools/tests/README.md
+++ b/compute_tools/tests/README.md
@@ -1,6 +0,0 @@
-### Test files
-
-The file `cluster_spec.json` has been copied over from libs/compute_api
-tests, with some edits:
-
-  - the neon.safekeepers setting contains a duplicate value
--- a/compute_tools/tests/cluster_spec.json
+++ b/compute_tools/tests/cluster_spec.json
@@ -1,245 +0,0 @@
-{
-  "format_version": 1.0,
-
-  "timestamp": "2021-05-23T18:25:43.511Z",
-  "operation_uuid": "0f657b36-4b0f-4a2d-9c2e-1dcd615e7d8b",
-
-  "cluster": {
-    "cluster_id": "test-cluster-42",
-    "name": "Zenith Test",
-    "state": "restarted",
-    "roles": [
-      {
-        "name": "postgres",
-        "encrypted_password": "6b1d16b78004bbd51fa06af9eda75972",
-        "options": null
-      },
-      {
-        "name": "alexk",
-        "encrypted_password": null,
-        "options": null
-      },
-      {
-        "name": "zenith \"new\"",
-        "encrypted_password": "5b1d16b78004bbd51fa06af9eda75972",
-        "options": null
-      },
-      {
-        "name": "zen",
-        "encrypted_password": "9b1d16b78004bbd51fa06af9eda75972"
-      },
-      {
-        "name": "\"name\";\\n select 1;",
-        "encrypted_password": "5b1d16b78004bbd51fa06af9eda75972"
-      },
-      {
-        "name": "MyRole",
-        "encrypted_password": "5b1d16b78004bbd51fa06af9eda75972"
-      }
-    ],
-    "databases": [
-      {
-        "name": "DB2",
-        "owner": "alexk",
-        "options": [
-          {
-            "name": "LC_COLLATE",
-            "value": "C",
-            "vartype": "string"
-          },
-          {
-            "name": "LC_CTYPE",
-            "value": "C",
-            "vartype": "string"
-          },
-          {
-            "name": "TEMPLATE",
-            "value": "template0",
-            "vartype": "enum"
-          }
-        ]
-      },
-      {
-        "name": "zenith",
-        "owner": "MyRole"
-      },
-      {
-        "name": "zen",
-        "owner": "zen"
-      }
-    ],
-    "settings": [
-      {
-        "name": "fsync",
-        "value": "off",
-        "vartype": "bool"
-      },
-      {
-        "name": "wal_level",
-        "value": "logical",
-        "vartype": "enum"
-      },
-      {
-        "name": "hot_standby",
-        "value": "on",
-        "vartype": "bool"
-      },
-      {
-        "name": "prewarm_lfc_on_startup",
-        "value": "off",
-        "vartype": "bool"
-      },
-      {
-        "name": "neon.safekeepers",
-        "value": "127.0.0.1:6502,127.0.0.1:6503,127.0.0.1:6501,127.0.0.1:6502",
-        "vartype": "string"
-      },
-      {
-        "name": "wal_log_hints",
-        "value": "on",
-        "vartype": "bool"
-      },
-      {
-        "name": "log_connections",
-        "value": "on",
-        "vartype": "bool"
-      },
-      {
-        "name": "shared_buffers",
-        "value": "32768",
-        "vartype": "integer"
-      },
-      {
-        "name": "port",
-        "value": "55432",
-        "vartype": "integer"
-      },
-      {
-        "name": "max_connections",
-        "value": "100",
-        "vartype": "integer"
-      },
-      {
-        "name": "max_wal_senders",
-        "value": "10",
-        "vartype": "integer"
-      },
-      {
-        "name": "listen_addresses",
-        "value": "0.0.0.0",
-        "vartype": "string"
-      },
-      {
-        "name": "wal_sender_timeout",
-        "value": "0",
-        "vartype": "integer"
-      },
-      {
-        "name": "password_encryption",
-        "value": "md5",
-        "vartype": "enum"
-      },
-      {
-        "name": "maintenance_work_mem",
-        "value": "65536",
-        "vartype": "integer"
-      },
-      {
-        "name": "max_parallel_workers",
-        "value": "8",
-        "vartype": "integer"
-      },
-      {
-        "name": "max_worker_processes",
-        "value": "8",
-        "vartype": "integer"
-      },
-      {
-        "name": "neon.tenant_id",
-        "value": "b0554b632bd4d547a63b86c3630317e8",
-        "vartype": "string"
-      },
-      {
-        "name": "max_replication_slots",
-        "value": "10",
-        "vartype": "integer"
-      },
-      {
-        "name": "neon.timeline_id",
-        "value": "2414a61ffc94e428f14b5758fe308e13",
-        "vartype": "string"
-      },
-      {
-        "name": "shared_preload_libraries",
-        "value": "neon",
-        "vartype": "string"
-      },
-      {
-        "name": "synchronous_standby_names",
-        "value": "walproposer",
-        "vartype": "string"
-      },
-      {
-        "name": "neon.pageserver_connstring",
-        "value": "host=127.0.0.1 port=6400",
-        "vartype": "string"
-      },
-      {
-        "name": "test.escaping",
-        "value": "here's a backslash \\ and a quote ' and a double-quote \" hooray",
-        "vartype": "string"
-      }
-    ]
-  },
-  "delta_operations": [
-    {
-      "action": "delete_db",
-      "name": "zenith_test"
-    },
-    {
-      "action": "rename_db",
-      "name": "DB",
-      "new_name": "DB2"
-    },
-    {
-      "action": "delete_role",
-      "name": "zenith2"
-    },
-    {
-      "action": "rename_role",
-      "name": "zenith new",
-      "new_name": "zenith \"new\""
-    }
-  ],
-  "remote_extensions": {
-    "library_index": {
-      "postgis-3": "postgis",
-      "libpgrouting-3.4": "postgis",
-      "postgis_raster-3": "postgis",
-      "postgis_sfcgal-3": "postgis",
-      "postgis_topology-3": "postgis",
-      "address_standardizer-3": "postgis"
-    },
-    "extension_data": {
-      "postgis": {
-        "archive_path": "5834329303/v15/extensions/postgis.tar.zst",
-        "control_data": {
-          "postgis.control": "# postgis extension\ncomment = ''PostGIS geometry and geography spatial types and functions''\ndefault_version = ''3.3.2''\nmodule_pathname = ''$libdir/postgis-3''\nrelocatable = false\ntrusted = true\n",
-          "pgrouting.control": "# pgRouting Extension\ncomment = ''pgRouting Extension''\ndefault_version = ''3.4.2''\nmodule_pathname = ''$libdir/libpgrouting-3.4''\nrelocatable = true\nrequires = ''plpgsql''\nrequires = ''postgis''\ntrusted = true\n",
-          "postgis_raster.control": "# postgis_raster extension\ncomment = ''PostGIS raster types and functions''\ndefault_version = ''3.3.2''\nmodule_pathname = ''$libdir/postgis_raster-3''\nrelocatable = false\nrequires = postgis\ntrusted = true\n",
-          "postgis_sfcgal.control": "# postgis topology extension\ncomment = ''PostGIS SFCGAL functions''\ndefault_version = ''3.3.2''\nrelocatable = true\nrequires = postgis\ntrusted = true\n",
-          "postgis_topology.control": "# postgis topology extension\ncomment = ''PostGIS topology spatial types and functions''\ndefault_version = ''3.3.2''\nrelocatable = false\nschema = topology\nrequires = postgis\ntrusted = true\n",
-          "address_standardizer.control": "# address_standardizer extension\ncomment = ''Used to parse an address into constituent elements. Generally used to support geocoding address normalization step.''\ndefault_version = ''3.3.2''\nrelocatable = true\ntrusted = true\n",
-          "postgis_tiger_geocoder.control": "# postgis tiger geocoder extension\ncomment = ''PostGIS tiger geocoder and reverse geocoder''\ndefault_version = ''3.3.2''\nrelocatable = false\nschema = tiger\nrequires = ''postgis,fuzzystrmatch''\nsuperuser= false\ntrusted = true\n",
-          "address_standardizer_data_us.control": "# address standardizer us dataset\ncomment = ''Address Standardizer US dataset example''\ndefault_version = ''3.3.2''\nrelocatable = true\ntrusted = true\n"
-        }
-      }
-    },
-    "custom_extensions": [],
-    "public_extensions": ["postgis"]
-  },
-  "pgbouncer_settings": {
-    "default_pool_size": "42",
-    "pool_mode": "session"
-  }
-}
--- a/compute_tools/tests/pg_helpers_tests.rs
+++ b/compute_tools/tests/pg_helpers_tests.rs
@@ -30,7 +30,7 @@ mod pg_helpers_tests {
            r#"fsync = off
 wal_level = logical
 hot_standby = on
-autoprewarm = off
+prewarm_lfc_on_startup = off
 neon.safekeepers = '127.0.0.1:6502,127.0.0.1:6503,127.0.0.1:6501'
 wal_log_hints = on
 log_connections = on
@@ -71,14 +71,6 @@ test.escaping = 'here''s a backslash \\ and a quote '' and a double-quote " hoor
            ("name$$$", ("$x$name$$$$x$", "xx")),
            ("name$$$$", ("$x$name$$$$$x$", "xx")),
            ("name$x$", ("$xx$name$x$$xx$", "xxx")),
-            ("x", ("$xx$x$xx$", "xxx")),
-            ("xx", ("$xxx$xx$xxx$", "xxxx")),
-            ("$x", ("$xx$$x$xx$", "xxx")),
-            ("x$", ("$xx$x$$xx$", "xxx")),
-            ("$x$", ("$xx$$x$$xx$", "xxx")),
-            ("xx$", ("$xxx$xx$$xxx$", "xxxx")),
-            ("$xx", ("$xxx$$xx$xxx$", "xxxx")),
-            ("$xx$", ("$xxx$$xx$$xxx$", "xxxx")),
        ];

        for (input, expected) in test_cases {
--- a/control_plane/Cargo.toml
+++ b/control_plane/Cargo.toml
@@ -36,7 +36,6 @@ pageserver_api.workspace = true
 pageserver_client.workspace = true
 postgres_backend.workspace = true
 safekeeper_api.workspace = true
-safekeeper_client.workspace = true
 postgres_connection.workspace = true
 storage_broker.workspace = true
 http-utils.workspace = true
--- a/control_plane/safekeepers.conf
+++ b/control_plane/safekeepers.conf
@@ -2,10 +2,8 @@
 [pageserver]
 listen_pg_addr = '127.0.0.1:64000'
 listen_http_addr = '127.0.0.1:9898'
-listen_grpc_addr = '127.0.0.1:51051'
 pg_auth_type = 'Trust'
 http_auth_type = 'Trust'
-grpc_auth_type = 'Trust'

 [[safekeepers]]
 id = 1
--- a/control_plane/simple.conf
+++ b/control_plane/simple.conf
@@ -4,10 +4,8 @@
 id=1
 listen_pg_addr = '127.0.0.1:64000'
 listen_http_addr = '127.0.0.1:9898'
-listen_grpc_addr = '127.0.0.1:51051'
 pg_auth_type = 'Trust'
 http_auth_type = 'Trust'
-grpc_auth_type = 'Trust'

 [[safekeepers]]
 id = 1
--- a/control_plane/src/bin/neon_local.rs
+++ b/control_plane/src/bin/neon_local.rs
@@ -18,7 +18,7 @@ use clap::Parser;
 use compute_api::requests::ComputeClaimsScope;
 use compute_api::spec::ComputeMode;
 use control_plane::broker::StorageBroker;
-use control_plane::endpoint::{ComputeControlPlane, EndpointTerminateMode, PageserverProtocol};
+use control_plane::endpoint::ComputeControlPlane;
 use control_plane::endpoint_storage::{ENDPOINT_STORAGE_DEFAULT_ADDR, EndpointStorage};
 use control_plane::local_env;
 use control_plane::local_env::{
@@ -32,7 +32,6 @@ use control_plane::storage_controller::{
 };
 use nix::fcntl::{Flock, FlockArg};
 use pageserver_api::config::{
-    DEFAULT_GRPC_LISTEN_PORT as DEFAULT_PAGESERVER_GRPC_PORT,
    DEFAULT_HTTP_LISTEN_PORT as DEFAULT_PAGESERVER_HTTP_PORT,
    DEFAULT_PG_LISTEN_PORT as DEFAULT_PAGESERVER_PG_PORT,
 };
@@ -45,7 +44,7 @@ use pageserver_api::models::{
 use pageserver_api::shard::{DEFAULT_STRIPE_SIZE, ShardCount, ShardStripeSize, TenantShardId};
 use postgres_backend::AuthType;
 use postgres_connection::parse_host_port;
-use safekeeper_api::membership::{SafekeeperGeneration, SafekeeperId};
+use safekeeper_api::membership::SafekeeperGeneration;
 use safekeeper_api::{
    DEFAULT_HTTP_LISTEN_PORT as DEFAULT_SAFEKEEPER_HTTP_PORT,
    DEFAULT_PG_LISTEN_PORT as DEFAULT_SAFEKEEPER_PG_PORT,
@@ -605,14 +604,6 @@ struct EndpointCreateCmdArgs {
    #[clap(long, help = "Postgres version")]
    pg_version: u32,

-    /// Use gRPC to communicate with Pageservers, by generating grpc:// connstrings.
-    ///
-    /// Specified on creation such that it's retained across reconfiguration and restarts.
-    ///
-    /// NB: not yet supported by computes.
-    #[clap(long)]
-    grpc: bool,
-
    #[clap(
        long,
        help = "If set, the node will be a hot replica on the specified timeline",
@@ -672,13 +663,6 @@ struct EndpointStartCmdArgs {
    #[clap(short = 't', long, value_parser= humantime::parse_duration, help = "timeout until we fail the command")]
    #[arg(default_value = "90s")]
    start_timeout: Duration,
-
-    #[clap(
-        long,
-        help = "Run in development mode, skipping VM-specific operations like process termination",
-        action = clap::ArgAction::SetTrue
-    )]
-    dev: bool,
 }

 #[derive(clap::Args)]
@@ -711,9 +695,10 @@ struct EndpointStopCmdArgs {
    )]
    destroy: bool,

-    #[clap(long, help = "Postgres shutdown mode")]
-    #[clap(default_value = "fast")]
-    mode: EndpointTerminateMode,
+    #[clap(long, help = "Postgres shutdown mode, passed to \"pg_ctl -m <mode>\"")]
+    #[arg(value_parser(["smart", "fast", "immediate"]))]
+    #[arg(default_value = "fast")]
+    mode: String,
 }

 #[derive(clap::Args)]
@@ -1022,16 +1007,13 @@ fn handle_init(args: &InitCmdArgs) -> anyhow::Result<LocalEnv> {
                    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;
-                    let grpc_port = DEFAULT_PAGESERVER_GRPC_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}"),
                        listen_https_addr: None,
-                        listen_grpc_addr: Some(format!("127.0.0.1:{grpc_port}")),
                        pg_auth_type: AuthType::Trust,
                        http_auth_type: AuthType::Trust,
-                        grpc_auth_type: AuthType::Trust,
                        other: Default::default(),
                        // Typical developer machines use disks with slow fsync, and we don't care
                        // about data integrity: disable disk syncs.
@@ -1269,45 +1251,6 @@ async fn handle_timeline(cmd: &TimelineCmd, env: &mut local_env::LocalEnv) -> Re
            pageserver
                .timeline_import(tenant_id, timeline_id, base, pg_wal, args.pg_version)
                .await?;
-            if env.storage_controller.timelines_onto_safekeepers {
-                println!("Creating timeline on safekeeper ...");
-                let timeline_info = pageserver
-                    .timeline_info(
-                        TenantShardId::unsharded(tenant_id),
-                        timeline_id,
-                        pageserver_client::mgmt_api::ForceAwaitLogicalSize::No,
-                    )
-                    .await?;
-                let default_sk = SafekeeperNode::from_env(env, env.safekeepers.first().unwrap());
-                let default_host = default_sk
-                    .conf
-                    .listen_addr
-                    .clone()
-                    .unwrap_or_else(|| "localhost".to_string());
-                let mconf = safekeeper_api::membership::Configuration {
-                    generation: SafekeeperGeneration::new(1),
-                    members: safekeeper_api::membership::MemberSet {
-                        m: vec![SafekeeperId {
-                            host: default_host,
-                            id: default_sk.conf.id,
-                            pg_port: default_sk.conf.pg_port,
-                        }],
-                    },
-                    new_members: None,
-                };
-                let pg_version = args.pg_version * 10000;
-                let req = safekeeper_api::models::TimelineCreateRequest {
-                    tenant_id,
-                    timeline_id,
-                    mconf,
-                    pg_version,
-                    system_id: None,
-                    wal_seg_size: None,
-                    start_lsn: timeline_info.last_record_lsn,
-                    commit_lsn: None,
-                };
-                default_sk.create_timeline(&req).await?;
-            }
            env.register_branch_mapping(branch_name.to_string(), tenant_id, timeline_id)?;
            println!("Done");
        }
@@ -1332,7 +1275,6 @@ async fn handle_timeline(cmd: &TimelineCmd, env: &mut local_env::LocalEnv) -> Re
                mode: pageserver_api::models::TimelineCreateRequestMode::Branch {
                    ancestor_timeline_id,
                    ancestor_start_lsn: start_lsn,
-                    read_only: false,
                    pg_version: None,
                },
            };
@@ -1465,7 +1407,6 @@ async fn handle_endpoint(subcmd: &EndpointCmd, env: &local_env::LocalEnv) -> Res
                args.internal_http_port,
                args.pg_version,
                mode,
-                args.grpc,
                !args.update_catalog,
                false,
            )?;
@@ -1506,20 +1447,13 @@ async fn handle_endpoint(subcmd: &EndpointCmd, env: &local_env::LocalEnv) -> Res

            let (pageservers, stripe_size) = if let Some(pageserver_id) = pageserver_id {
                let conf = env.get_pageserver_conf(pageserver_id).unwrap();
-                // Use gRPC if requested.
-                let pageserver = if endpoint.grpc {
-                    let grpc_addr = conf.listen_grpc_addr.as_ref().expect("bad config");
-                    let (host, port) = parse_host_port(grpc_addr)?;
-                    let port = port.unwrap_or(DEFAULT_PAGESERVER_GRPC_PORT);
-                    (PageserverProtocol::Grpc, host, port)
-                } else {
-                    let (host, port) = parse_host_port(&conf.listen_pg_addr)?;
-                    let port = port.unwrap_or(5432);
-                    (PageserverProtocol::Libpq, host, port)
-                };
-                // If caller is telling us what pageserver to use, this is not a tenant which is
-                // fully managed by storage controller, therefore not sharded.
-                (vec![pageserver], DEFAULT_STRIPE_SIZE)
+                let parsed = parse_host_port(&conf.listen_pg_addr).expect("Bad config");
+                (
+                    vec![(parsed.0, parsed.1.unwrap_or(5432))],
+                    // If caller is telling us what pageserver to use, this is not a tenant which is
+                    // full managed by storage controller, therefore not sharded.
+                    DEFAULT_STRIPE_SIZE,
+                )
            } else {
                // Look up the currently attached location of the tenant, and its striping metadata,
                // to pass these on to postgres.
@@ -1538,20 +1472,11 @@ async fn handle_endpoint(subcmd: &EndpointCmd, env: &local_env::LocalEnv) -> Res
                                .await?;
                        }

-                        let pageserver = if endpoint.grpc {
-                            (
-                                PageserverProtocol::Grpc,
-                                Host::parse(&shard.listen_grpc_addr.expect("no gRPC address"))?,
-                                shard.listen_grpc_port.expect("no gRPC port"),
-                            )
-                        } else {
-                            (
-                                PageserverProtocol::Libpq,
-                                Host::parse(&shard.listen_pg_addr)?,
-                                shard.listen_pg_port,
-                            )
-                        };
-                        anyhow::Ok(pageserver)
+                        anyhow::Ok((
+                            Host::parse(&shard.listen_pg_addr)
+                                .expect("Storage controller reported bad hostname"),
+                            shard.listen_pg_port,
+                        ))
                    }),
                )
                .await?;
@@ -1596,7 +1521,6 @@ async fn handle_endpoint(subcmd: &EndpointCmd, env: &local_env::LocalEnv) -> Res
                    stripe_size.0 as usize,
                    args.create_test_user,
                    args.start_timeout,
-                    args.dev,
                )
                .await?;
        }
@@ -1607,19 +1531,11 @@ async fn handle_endpoint(subcmd: &EndpointCmd, env: &local_env::LocalEnv) -> Res
                .get(endpoint_id.as_str())
                .with_context(|| format!("postgres endpoint {endpoint_id} is not found"))?;
            let pageservers = if let Some(ps_id) = args.endpoint_pageserver_id {
-                let conf = env.get_pageserver_conf(ps_id)?;
-                // Use gRPC if requested.
-                let pageserver = if endpoint.grpc {
-                    let grpc_addr = conf.listen_grpc_addr.as_ref().expect("bad config");
-                    let (host, port) = parse_host_port(grpc_addr)?;
-                    let port = port.unwrap_or(DEFAULT_PAGESERVER_GRPC_PORT);
-                    (PageserverProtocol::Grpc, host, port)
-                } else {
-                    let (host, port) = parse_host_port(&conf.listen_pg_addr)?;
-                    let port = port.unwrap_or(5432);
-                    (PageserverProtocol::Libpq, host, port)
-                };
-                vec![pageserver]
+                let pageserver = PageServerNode::from_env(env, env.get_pageserver_conf(ps_id)?);
+                vec![(
+                    pageserver.pg_connection_config.host().clone(),
+                    pageserver.pg_connection_config.port(),
+                )]
            } else {
                let storage_controller = StorageController::from_env(env);
                storage_controller
@@ -1628,21 +1544,11 @@ async fn handle_endpoint(subcmd: &EndpointCmd, env: &local_env::LocalEnv) -> Res
                    .shards
                    .into_iter()
                    .map(|shard| {
-                        // Use gRPC if requested.
-                        if endpoint.grpc {
-                            (
-                                PageserverProtocol::Grpc,
-                                Host::parse(&shard.listen_grpc_addr.expect("no gRPC address"))
-                                    .expect("bad hostname"),
-                                shard.listen_grpc_port.expect("no gRPC port"),
-                            )
-                        } else {
-                            (
-                                PageserverProtocol::Libpq,
-                                Host::parse(&shard.listen_pg_addr).expect("bad hostname"),
-                                shard.listen_pg_port,
-                            )
-                        }
+                        (
+                            Host::parse(&shard.listen_pg_addr)
+                                .expect("Storage controller reported malformed host"),
+                            shard.listen_pg_port,
+                        )
                    })
                    .collect::<Vec<_>>()
            };
@@ -1657,10 +1563,7 @@ async fn handle_endpoint(subcmd: &EndpointCmd, env: &local_env::LocalEnv) -> Res
                .endpoints
                .get(endpoint_id)
                .with_context(|| format!("postgres endpoint {endpoint_id} is not found"))?;
-            match endpoint.stop(args.mode, args.destroy).await?.lsn {
-                Some(lsn) => println!("{lsn}"),
-                None => println!("null"),
-            }
+            endpoint.stop(&args.mode, args.destroy)?;
        }
        EndpointCmd::GenerateJwt(args) => {
            let endpoint = {
@@ -2092,16 +1995,11 @@ async fn handle_stop_all(args: &StopCmdArgs, env: &local_env::LocalEnv) -> Resul
 }

 async fn try_stop_all(env: &local_env::LocalEnv, immediate: bool) {
-    let mode = if immediate {
-        EndpointTerminateMode::Immediate
-    } else {
-        EndpointTerminateMode::Fast
-    };
    // Stop all endpoints
    match ComputeControlPlane::load(env.clone()) {
        Ok(cplane) => {
            for (_k, node) in cplane.endpoints {
-                if let Err(e) = node.stop(mode, false).await {
+                if let Err(e) = node.stop(if immediate { "immediate" } else { "fast" }, false) {
                    eprintln!("postgres stop failed: {e:#}");
                }
            }
--- a/control_plane/src/endpoint.rs
+++ b/control_plane/src/endpoint.rs
@@ -37,7 +37,6 @@
 //! ```
 //!
 use std::collections::BTreeMap;
-use std::fmt::Display;
 use std::net::{IpAddr, Ipv4Addr, SocketAddr, TcpStream};
 use std::path::PathBuf;
 use std::process::Command;
@@ -46,14 +45,11 @@ use std::sync::Arc;
 use std::time::{Duration, Instant};

 use anyhow::{Context, Result, anyhow, bail};
-use base64::Engine;
-use base64::prelude::BASE64_URL_SAFE_NO_PAD;
 use compute_api::requests::{
    COMPUTE_AUDIENCE, ComputeClaims, ComputeClaimsScope, ConfigurationRequest,
 };
 use compute_api::responses::{
-    ComputeConfig, ComputeCtlConfig, ComputeStatus, ComputeStatusResponse, TerminateResponse,
-    TlsConfig,
+    ComputeConfig, ComputeCtlConfig, ComputeStatus, ComputeStatusResponse, TlsConfig,
 };
 use compute_api::spec::{
    Cluster, ComputeAudit, ComputeFeature, ComputeMode, ComputeSpec, Database, PgIdent,
@@ -78,6 +74,7 @@ use utils::id::{NodeId, TenantId, TimelineId};

 use crate::local_env::LocalEnv;
 use crate::postgresql_conf::PostgresConf;
+use crate::storage_controller::StorageController;

 // contents of a endpoint.json file
 #[derive(Serialize, Deserialize, PartialEq, Eq, Clone, Debug)]
@@ -90,7 +87,6 @@ pub struct EndpointConf {
    external_http_port: u16,
    internal_http_port: u16,
    pg_version: u32,
-    grpc: bool,
    skip_pg_catalog_updates: bool,
    reconfigure_concurrency: usize,
    drop_subscriptions_before_start: bool,
@@ -168,7 +164,7 @@ impl ComputeControlPlane {
                    public_key_use: Some(PublicKeyUse::Signature),
                    key_operations: Some(vec![KeyOperations::Verify]),
                    key_algorithm: Some(KeyAlgorithm::EdDSA),
-                    key_id: Some(BASE64_URL_SAFE_NO_PAD.encode(key_hash)),
+                    key_id: Some(base64::encode_config(key_hash, base64::URL_SAFE_NO_PAD)),
                    x509_url: None::<String>,
                    x509_chain: None::<Vec<String>>,
                    x509_sha1_fingerprint: None::<String>,
@@ -177,7 +173,7 @@ impl ComputeControlPlane {
                algorithm: AlgorithmParameters::OctetKeyPair(OctetKeyPairParameters {
                    key_type: OctetKeyPairType::OctetKeyPair,
                    curve: EllipticCurve::Ed25519,
-                    x: BASE64_URL_SAFE_NO_PAD.encode(public_key),
+                    x: base64::encode_config(public_key, base64::URL_SAFE_NO_PAD),
                }),
            }],
        })
@@ -194,7 +190,6 @@ impl ComputeControlPlane {
        internal_http_port: Option<u16>,
        pg_version: u32,
        mode: ComputeMode,
-        grpc: bool,
        skip_pg_catalog_updates: bool,
        drop_subscriptions_before_start: bool,
    ) -> Result<Arc<Endpoint>> {
@@ -229,7 +224,6 @@ impl ComputeControlPlane {
            // we also skip catalog updates in the cloud.
            skip_pg_catalog_updates,
            drop_subscriptions_before_start,
-            grpc,
            reconfigure_concurrency: 1,
            features: vec![],
            cluster: None,
@@ -248,7 +242,6 @@ impl ComputeControlPlane {
                internal_http_port,
                pg_port,
                pg_version,
-                grpc,
                skip_pg_catalog_updates,
                drop_subscriptions_before_start,
                reconfigure_concurrency: 1,
@@ -303,8 +296,6 @@ pub struct Endpoint {
    pub tenant_id: TenantId,
    pub timeline_id: TimelineId,
    pub mode: ComputeMode,
-    /// If true, the endpoint should use gRPC to communicate with Pageservers.
-    pub grpc: bool,

    // port and address of the Postgres server and `compute_ctl`'s HTTP APIs
    pub pg_address: SocketAddr,
@@ -340,58 +331,15 @@ pub enum EndpointStatus {
    RunningNoPidfile,
 }

-impl Display for EndpointStatus {
+impl std::fmt::Display for EndpointStatus {
    fn fmt(&self, writer: &mut std::fmt::Formatter) -> std::fmt::Result {
-        writer.write_str(match self {
+        let s = match self {
            Self::Running => "running",
            Self::Stopped => "stopped",
            Self::Crashed => "crashed",
            Self::RunningNoPidfile => "running, no pidfile",
-        })
-    }
-}
-
-#[derive(Default, Clone, Copy, clap::ValueEnum)]
-pub enum EndpointTerminateMode {
-    #[default]
-    /// Use pg_ctl stop -m fast
-    Fast,
-    /// Use pg_ctl stop -m immediate
-    Immediate,
-    /// Use /terminate?mode=immediate
-    ImmediateTerminate,
-}
-
-impl std::fmt::Display for EndpointTerminateMode {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.write_str(match &self {
-            EndpointTerminateMode::Fast => "fast",
-            EndpointTerminateMode::Immediate => "immediate",
-            EndpointTerminateMode::ImmediateTerminate => "immediate-terminate",
-        })
-    }
-}
-
-/// Protocol used to connect to a Pageserver.
-#[derive(Clone, Copy, Debug)]
-pub enum PageserverProtocol {
-    Libpq,
-    Grpc,
-}
-
-impl PageserverProtocol {
-    /// Returns the URL scheme for the protocol, used in connstrings.
-    pub fn scheme(&self) -> &'static str {
-        match self {
-            Self::Libpq => "postgresql",
-            Self::Grpc => "grpc",
-        }
-    }
-}
-
-impl Display for PageserverProtocol {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.write_str(self.scheme())
+        };
+        write!(writer, "{}", s)
    }
 }

@@ -430,7 +378,6 @@ impl Endpoint {
            mode: conf.mode,
            tenant_id: conf.tenant_id,
            pg_version: conf.pg_version,
-            grpc: conf.grpc,
            skip_pg_catalog_updates: conf.skip_pg_catalog_updates,
            reconfigure_concurrency: conf.reconfigure_concurrency,
            drop_subscriptions_before_start: conf.drop_subscriptions_before_start,
@@ -659,10 +606,10 @@ impl Endpoint {
        }
    }

-    fn build_pageserver_connstr(pageservers: &[(PageserverProtocol, Host, u16)]) -> String {
+    fn build_pageserver_connstr(pageservers: &[(Host, u16)]) -> String {
        pageservers
            .iter()
-            .map(|(scheme, host, port)| format!("{scheme}://no_user@{host}:{port}"))
+            .map(|(host, port)| format!("postgresql://no_user@{host}:{port}"))
            .collect::<Vec<_>>()
            .join(",")
    }
@@ -707,12 +654,11 @@ impl Endpoint {
        endpoint_storage_addr: String,
        safekeepers_generation: Option<SafekeeperGeneration>,
        safekeepers: Vec<NodeId>,
-        pageservers: Vec<(PageserverProtocol, Host, u16)>,
+        pageservers: Vec<(Host, u16)>,
        remote_ext_base_url: Option<&String>,
        shard_stripe_size: usize,
        create_test_user: bool,
        start_timeout: Duration,
-        dev: bool,
    ) -> Result<()> {
        if self.status() == EndpointStatus::Running {
            anyhow::bail!("The endpoint is already running");
@@ -801,7 +747,7 @@ impl Endpoint {
                logs_export_host: None::<String>,
                endpoint_storage_addr: Some(endpoint_storage_addr),
                endpoint_storage_token: Some(endpoint_storage_token),
-                autoprewarm: false,
+                prewarm_lfc_on_startup: false,
            };

            // this strange code is needed to support respec() in tests
@@ -883,10 +829,6 @@ impl Endpoint {
            cmd.args(["--remote-ext-base-url", remote_ext_base_url]);
        }

-        if dev {
-            cmd.arg("--dev");
-        }
-
        let child = cmd.spawn()?;
        // set up a scopeguard to kill & wait for the child in case we panic or bail below
        let child = scopeguard::guard(child, |mut child| {
@@ -939,7 +881,7 @@ impl Endpoint {
                        ComputeStatus::Empty
                        | ComputeStatus::ConfigurationPending
                        | ComputeStatus::Configuration
-                        | ComputeStatus::TerminationPending { .. }
+                        | ComputeStatus::TerminationPending
                        | ComputeStatus::Terminated => {
                            bail!("unexpected compute status: {:?}", state.status)
                        }
@@ -997,12 +939,10 @@ impl Endpoint {

    pub async fn reconfigure(
        &self,
-        pageservers: Vec<(PageserverProtocol, Host, u16)>,
+        mut pageservers: Vec<(Host, u16)>,
        stripe_size: Option<ShardStripeSize>,
        safekeepers: Option<Vec<NodeId>>,
    ) -> Result<()> {
-        anyhow::ensure!(!pageservers.is_empty(), "no pageservers provided");
-
        let (mut spec, compute_ctl_config) = {
            let config_path = self.endpoint_path().join("config.json");
            let file = std::fs::File::open(config_path)?;
@@ -1014,7 +954,25 @@ impl Endpoint {
        let postgresql_conf = self.read_postgresql_conf()?;
        spec.cluster.postgresql_conf = Some(postgresql_conf);

+        // If we weren't given explicit pageservers, query the storage controller
+        if pageservers.is_empty() {
+            let storage_controller = StorageController::from_env(&self.env);
+            let locate_result = storage_controller.tenant_locate(self.tenant_id).await?;
+            pageservers = locate_result
+                .shards
+                .into_iter()
+                .map(|shard| {
+                    (
+                        Host::parse(&shard.listen_pg_addr)
+                            .expect("Storage controller reported bad hostname"),
+                        shard.listen_pg_port,
+                    )
+                })
+                .collect::<Vec<_>>();
+        }
+
        let pageserver_connstr = Self::build_pageserver_connstr(&pageservers);
+        assert!(!pageserver_connstr.is_empty());
        spec.pageserver_connstring = Some(pageserver_connstr);
        if stripe_size.is_some() {
            spec.shard_stripe_size = stripe_size.map(|s| s.0 as usize);
@@ -1061,27 +1019,8 @@ impl Endpoint {
        }
    }

-    pub async fn stop(
-        &self,
-        mode: EndpointTerminateMode,
-        destroy: bool,
-    ) -> Result<TerminateResponse> {
-        // pg_ctl stop is fast but doesn't allow us to collect LSN. /terminate is
-        // slow, and test runs time out. Solution: special mode "immediate-terminate"
-        // which uses /terminate
-        let response = if let EndpointTerminateMode::ImmediateTerminate = mode {
-            let ip = self.external_http_address.ip();
-            let port = self.external_http_address.port();
-            let url = format!("http://{ip}:{port}/terminate?mode=immediate");
-            let token = self.generate_jwt(Some(ComputeClaimsScope::Admin))?;
-            let request = reqwest::Client::new().post(url).bearer_auth(token);
-            let response = request.send().await.context("/terminate")?;
-            let text = response.text().await.context("/terminate result")?;
-            serde_json::from_str(&text).with_context(|| format!("deserializing {text}"))?
-        } else {
-            self.pg_ctl(&["-m", &mode.to_string(), "stop"], &None)?;
-            TerminateResponse { lsn: None }
-        };
+    pub fn stop(&self, mode: &str, destroy: bool) -> Result<()> {
+        self.pg_ctl(&["-m", mode, "stop"], &None)?;

        // Also wait for the compute_ctl process to die. It might have some
        // cleanup work to do after postgres stops, like syncing safekeepers,
@@ -1091,7 +1030,7 @@ impl Endpoint {
        // waiting. Sometimes we do *not* want this cleanup: tests intentionally
        // do stop when majority of safekeepers is down, so sync-safekeepers
        // would hang otherwise. This could be a separate flag though.
-        let send_sigterm = destroy || !matches!(mode, EndpointTerminateMode::Fast);
+        let send_sigterm = destroy || mode == "immediate";
        self.wait_for_compute_ctl_to_exit(send_sigterm)?;
        if destroy {
            println!(
@@ -1100,7 +1039,7 @@ impl Endpoint {
            );
            std::fs::remove_dir_all(self.endpoint_path())?;
        }
-        Ok(response)
+        Ok(())
    }

    pub fn connstr(&self, user: &str, db_name: &str) -> String {
--- a/control_plane/src/local_env.rs
+++ b/control_plane/src/local_env.rs
@@ -209,8 +209,6 @@ pub struct NeonStorageControllerConf {
    pub use_https_safekeeper_api: bool,

    pub use_local_compute_notifications: bool,
-
-    pub timeline_safekeeper_count: Option<i64>,
 }

 impl NeonStorageControllerConf {
@@ -238,10 +236,9 @@ impl Default for NeonStorageControllerConf {
            heartbeat_interval: Self::DEFAULT_HEARTBEAT_INTERVAL,
            long_reconcile_threshold: None,
            use_https_pageserver_api: false,
-            timelines_onto_safekeepers: true,
+            timelines_onto_safekeepers: false,
            use_https_safekeeper_api: false,
            use_local_compute_notifications: true,
-            timeline_safekeeper_count: None,
        }
    }
 }
@@ -281,10 +278,8 @@ pub struct PageServerConf {
    pub listen_pg_addr: String,
    pub listen_http_addr: String,
    pub listen_https_addr: Option<String>,
-    pub listen_grpc_addr: Option<String>,
    pub pg_auth_type: AuthType,
    pub http_auth_type: AuthType,
-    pub grpc_auth_type: AuthType,
    pub no_sync: bool,
 }

@@ -295,10 +290,8 @@ impl Default for PageServerConf {
            listen_pg_addr: String::new(),
            listen_http_addr: String::new(),
            listen_https_addr: None,
-            listen_grpc_addr: None,
            pg_auth_type: AuthType::Trust,
            http_auth_type: AuthType::Trust,
-            grpc_auth_type: AuthType::Trust,
            no_sync: false,
        }
    }
@@ -313,10 +306,8 @@ pub struct NeonLocalInitPageserverConf {
    pub listen_pg_addr: String,
    pub listen_http_addr: String,
    pub listen_https_addr: Option<String>,
-    pub listen_grpc_addr: Option<String>,
    pub pg_auth_type: AuthType,
    pub http_auth_type: AuthType,
-    pub grpc_auth_type: AuthType,
    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
    pub no_sync: bool,
    #[serde(flatten)]
@@ -330,10 +321,8 @@ impl From<&NeonLocalInitPageserverConf> for PageServerConf {
            listen_pg_addr,
            listen_http_addr,
            listen_https_addr,
-            listen_grpc_addr,
            pg_auth_type,
            http_auth_type,
-            grpc_auth_type,
            no_sync,
            other: _,
        } = conf;
@@ -342,9 +331,7 @@ impl From<&NeonLocalInitPageserverConf> for PageServerConf {
            listen_pg_addr: listen_pg_addr.clone(),
            listen_http_addr: listen_http_addr.clone(),
            listen_https_addr: listen_https_addr.clone(),
-            listen_grpc_addr: listen_grpc_addr.clone(),
            pg_auth_type: *pg_auth_type,
-            grpc_auth_type: *grpc_auth_type,
            http_auth_type: *http_auth_type,
            no_sync: *no_sync,
        }
@@ -720,10 +707,8 @@ impl LocalEnv {
                    listen_pg_addr: String,
                    listen_http_addr: String,
                    listen_https_addr: Option<String>,
-                    listen_grpc_addr: Option<String>,
                    pg_auth_type: AuthType,
                    http_auth_type: AuthType,
-                    grpc_auth_type: AuthType,
                    #[serde(default)]
                    no_sync: bool,
                }
@@ -747,10 +732,8 @@ impl LocalEnv {
                    listen_pg_addr,
                    listen_http_addr,
                    listen_https_addr,
-                    listen_grpc_addr,
                    pg_auth_type,
                    http_auth_type,
-                    grpc_auth_type,
                    no_sync,
                } = config_toml;
                let IdentityTomlSubset {
@@ -767,10 +750,8 @@ impl LocalEnv {
                    listen_pg_addr,
                    listen_http_addr,
                    listen_https_addr,
-                    listen_grpc_addr,
                    pg_auth_type,
                    http_auth_type,
-                    grpc_auth_type,
                    no_sync,
                };
                pageservers.push(conf);
--- a/control_plane/src/pageserver.rs
+++ b/control_plane/src/pageserver.rs
@@ -16,7 +16,6 @@ use std::time::Duration;

 use anyhow::{Context, bail};
 use camino::Utf8PathBuf;
-use pageserver_api::config::{DEFAULT_GRPC_LISTEN_PORT, DEFAULT_HTTP_LISTEN_PORT};
 use pageserver_api::models::{self, TenantInfo, TimelineInfo};
 use pageserver_api::shard::TenantShardId;
 use pageserver_client::mgmt_api;
@@ -130,9 +129,7 @@ impl PageServerNode {
            ));
        }

-        if [conf.http_auth_type, conf.pg_auth_type, conf.grpc_auth_type]
-            .contains(&AuthType::NeonJWT)
-        {
+        if conf.http_auth_type != AuthType::Trust || conf.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());
@@ -253,10 +250,9 @@ impl PageServerNode {
        // the storage controller
        let metadata_path = datadir.join("metadata.json");

-        let http_host = "localhost".to_string();
-        let (_, http_port) =
+        let (_http_host, http_port) =
            parse_host_port(&self.conf.listen_http_addr).expect("Unable to parse listen_http_addr");
-        let http_port = http_port.unwrap_or(DEFAULT_HTTP_LISTEN_PORT);
+        let http_port = http_port.unwrap_or(9898);

        let https_port = match self.conf.listen_https_addr.as_ref() {
            Some(https_addr) => {
@@ -267,13 +263,6 @@ impl PageServerNode {
            None => None,
        };

-        let (mut grpc_host, mut grpc_port) = (None, None);
-        if let Some(grpc_addr) = &self.conf.listen_grpc_addr {
-            let (_, port) = parse_host_port(grpc_addr).expect("Unable to parse listen_grpc_addr");
-            grpc_host = Some("localhost".to_string());
-            grpc_port = Some(port.unwrap_or(DEFAULT_GRPC_LISTEN_PORT));
-        }
-
        // Intentionally hand-craft JSON: this acts as an implicit format compat test
        // in case the pageserver-side structure is edited, and reflects the real life
        // situation: the metadata is written by some other script.
@@ -282,9 +271,7 @@ impl PageServerNode {
            serde_json::to_vec(&pageserver_api::config::NodeMetadata {
                postgres_host: "localhost".to_string(),
                postgres_port: self.pg_connection_config.port(),
-                grpc_host,
-                grpc_port,
-                http_host,
+                http_host: "localhost".to_string(),
                http_port,
                https_port,
                other: HashMap::from([(
@@ -524,6 +511,11 @@ impl PageServerNode {
                .map(|x| x.parse::<bool>())
                .transpose()
                .context("Failed to parse 'timeline_offloading' as bool")?,
+            wal_receiver_protocol_override: settings
+                .remove("wal_receiver_protocol_override")
+                .map(serde_json::from_str)
+                .transpose()
+                .context("parse `wal_receiver_protocol_override` from json")?,
            rel_size_v2_enabled: settings
                .remove("rel_size_v2_enabled")
                .map(|x| x.parse::<bool>())
@@ -554,16 +546,6 @@ impl PageServerNode {
                .map(serde_json::from_str)
                .transpose()
                .context("Falied to parse 'sampling_ratio'")?,
-            relsize_snapshot_cache_capacity: settings
-                .remove("relsize snapshot cache capacity")
-                .map(|x| x.parse::<usize>())
-                .transpose()
-                .context("Falied to parse 'relsize_snapshot_cache_capacity' as integer")?,
-            basebackup_cache_enabled: settings
-                .remove("basebackup_cache_enabled")
-                .map(|x| x.parse::<bool>())
-                .transpose()
-                .context("Failed to parse 'basebackup_cache_enabled' as bool")?,
        };
        if !settings.is_empty() {
            bail!("Unrecognized tenant settings: {settings:?}")
@@ -646,16 +628,4 @@ impl PageServerNode {

        Ok(())
    }
-    pub async fn timeline_info(
-        &self,
-        tenant_shard_id: TenantShardId,
-        timeline_id: TimelineId,
-        force_await_logical_size: mgmt_api::ForceAwaitLogicalSize,
-    ) -> anyhow::Result<TimelineInfo> {
-        let timeline_info = self
-            .http_client
-            .timeline_info(tenant_shard_id, timeline_id, force_await_logical_size)
-            .await?;
-        Ok(timeline_info)
-    }
 }
--- a/control_plane/src/safekeeper.rs
+++ b/control_plane/src/safekeeper.rs
@@ -6,6 +6,7 @@
 //!   .neon/safekeepers/<safekeeper id>
 //! ```
 use std::error::Error as _;
+use std::future::Future;
 use std::io::Write;
 use std::path::PathBuf;
 use std::time::Duration;
@@ -13,9 +14,9 @@ use std::{io, result};

 use anyhow::Context;
 use camino::Utf8PathBuf;
+use http_utils::error::HttpErrorBody;
 use postgres_connection::PgConnectionConfig;
-use safekeeper_api::models::TimelineCreateRequest;
-use safekeeper_client::mgmt_api;
+use reqwest::{IntoUrl, Method};
 use thiserror::Error;
 use utils::auth::{Claims, Scope};
 use utils::id::NodeId;
@@ -34,14 +35,25 @@ pub enum SafekeeperHttpError {

 type Result<T> = result::Result<T, SafekeeperHttpError>;

-fn err_from_client_err(err: mgmt_api::Error) -> SafekeeperHttpError {
-    use mgmt_api::Error::*;
-    match err {
-        ApiError(_, str) => SafekeeperHttpError::Response(str),
-        Cancelled => SafekeeperHttpError::Response("Cancelled".to_owned()),
-        ReceiveBody(err) => SafekeeperHttpError::Transport(err),
-        ReceiveErrorBody(err) => SafekeeperHttpError::Response(err),
-        Timeout(str) => SafekeeperHttpError::Response(format!("timeout: {str}")),
+pub(crate) trait ResponseErrorMessageExt: Sized {
+    fn error_from_body(self) -> impl Future<Output = Result<Self>> + Send;
+}
+
+impl ResponseErrorMessageExt for reqwest::Response {
+    async fn error_from_body(self) -> Result<Self> {
+        let status = self.status();
+        if !(status.is_client_error() || status.is_server_error()) {
+            return Ok(self);
+        }
+
+        // reqwest does not export its error construction utility functions, so let's craft the message ourselves
+        let url = self.url().to_owned();
+        Err(SafekeeperHttpError::Response(
+            match self.json::<HttpErrorBody>().await {
+                Ok(err_body) => format!("Error: {}", err_body.msg),
+                Err(_) => format!("Http error ({}) at {}.", status.as_u16(), url),
+            },
+        ))
    }
 }

@@ -58,8 +70,9 @@ pub struct SafekeeperNode {

    pub pg_connection_config: PgConnectionConfig,
    pub env: LocalEnv,
-    pub http_client: mgmt_api::Client,
+    pub http_client: reqwest::Client,
    pub listen_addr: String,
+    pub http_base_url: String,
 }

 impl SafekeeperNode {
@@ -69,14 +82,13 @@ impl SafekeeperNode {
        } else {
            "127.0.0.1".to_string()
        };
-        let jwt = None;
-        let http_base_url = format!("http://{}:{}", listen_addr, conf.http_port);
        SafekeeperNode {
            id: conf.id,
            conf: conf.clone(),
            pg_connection_config: Self::safekeeper_connection_config(&listen_addr, conf.pg_port),
            env: env.clone(),
-            http_client: mgmt_api::Client::new(env.create_http_client(), http_base_url, jwt),
+            http_client: env.create_http_client(),
+            http_base_url: format!("http://{}:{}/v1", listen_addr, conf.http_port),
            listen_addr,
        }
    }
@@ -266,19 +278,20 @@ impl SafekeeperNode {
        )
    }

-    pub async fn check_status(&self) -> Result<()> {
-        self.http_client
-            .status()
-            .await
-            .map_err(err_from_client_err)?;
-        Ok(())
+    fn http_request<U: IntoUrl>(&self, method: Method, url: U) -> reqwest::RequestBuilder {
+        // TODO: authentication
+        //if self.env.auth_type == AuthType::NeonJWT {
+        //    builder = builder.bearer_auth(&self.env.safekeeper_auth_token)
+        //}
+        self.http_client.request(method, url)
    }

-    pub async fn create_timeline(&self, req: &TimelineCreateRequest) -> Result<()> {
-        self.http_client
-            .create_timeline(req)
-            .await
-            .map_err(err_from_client_err)?;
+    pub async fn check_status(&self) -> Result<()> {
+        self.http_request(Method::GET, format!("{}/{}", self.http_base_url, "status"))
+            .send()
+            .await?
+            .error_from_body()
+            .await?;
        Ok(())
    }
 }
--- a/control_plane/src/storage_controller.rs
+++ b/control_plane/src/storage_controller.rs
@@ -628,10 +628,6 @@ impl StorageController {
            args.push("--timelines-onto-safekeepers".to_string());
        }

-        if let Some(sk_cnt) = self.config.timeline_safekeeper_count {
-            args.push(format!("--timeline-safekeeper-count={sk_cnt}"));
-        }
-
        println!("Starting storage controller");

        background_process::start_process(
--- a/control_plane/storcon_cli/src/main.rs
+++ b/control_plane/storcon_cli/src/main.rs
@@ -36,10 +36,6 @@ enum Command {
        listen_pg_addr: String,
        #[arg(long)]
        listen_pg_port: u16,
-        #[arg(long)]
-        listen_grpc_addr: Option<String>,
-        #[arg(long)]
-        listen_grpc_port: Option<u16>,

        #[arg(long)]
        listen_http_addr: String,
@@ -65,16 +61,10 @@ enum Command {
        #[arg(long)]
        scheduling: Option<NodeSchedulingPolicy>,
    },
-    // Set a node status as deleted.
    NodeDelete {
        #[arg(long)]
        node_id: NodeId,
    },
-    /// Delete a tombstone of node from the storage controller.
-    NodeDeleteTombstone {
-        #[arg(long)]
-        node_id: NodeId,
-    },
    /// Modify a tenant's policies in the storage controller
    TenantPolicy {
        #[arg(long)]
@@ -92,8 +82,6 @@ enum Command {
    },
    /// List nodes known to the storage controller
    Nodes {},
-    /// List soft deleted nodes known to the storage controller
-    NodeTombstones {},
    /// List tenants known to the storage controller
    Tenants {
        /// If this field is set, it will list the tenants on a specific node
@@ -422,8 +410,6 @@ async fn main() -> anyhow::Result<()> {
            node_id,
            listen_pg_addr,
            listen_pg_port,
-            listen_grpc_addr,
-            listen_grpc_port,
            listen_http_addr,
            listen_http_port,
            listen_https_port,
@@ -437,8 +423,6 @@ async fn main() -> anyhow::Result<()> {
                        node_id,
                        listen_pg_addr,
                        listen_pg_port,
-                        listen_grpc_addr,
-                        listen_grpc_port,
                        listen_http_addr,
                        listen_http_port,
                        listen_https_port,
@@ -916,39 +900,6 @@ async fn main() -> anyhow::Result<()> {
                .dispatch::<(), ()>(Method::DELETE, format!("control/v1/node/{node_id}"), None)
                .await?;
        }
-        Command::NodeDeleteTombstone { node_id } => {
-            storcon_client
-                .dispatch::<(), ()>(
-                    Method::DELETE,
-                    format!("debug/v1/tombstone/{node_id}"),
-                    None,
-                )
-                .await?;
-        }
-        Command::NodeTombstones {} => {
-            let mut resp = storcon_client
-                .dispatch::<(), Vec<NodeDescribeResponse>>(
-                    Method::GET,
-                    "debug/v1/tombstone".to_string(),
-                    None,
-                )
-                .await?;
-
-            resp.sort_by(|a, b| a.listen_http_addr.cmp(&b.listen_http_addr));
-
-            let mut table = comfy_table::Table::new();
-            table.set_header(["Id", "Hostname", "AZ", "Scheduling", "Availability"]);
-            for node in resp {
-                table.add_row([
-                    format!("{}", node.id),
-                    node.listen_http_addr,
-                    node.availability_zone_id,
-                    format!("{:?}", node.scheduling),
-                    format!("{:?}", node.availability),
-                ]);
-            }
-            println!("{table}");
-        }
        Command::TenantSetTimeBasedEviction {
            tenant_id,
            period,
--- a/docker-compose/compute_wrapper/Dockerfile
+++ b/docker-compose/compute_wrapper/Dockerfile
@@ -13,6 +13,6 @@ RUN echo 'Acquire::Retries "5";' > /etc/apt/apt.conf.d/80-retries && \
                       jq   \
                       netcat-openbsd
 #This is required for the pg_hintplan test
-RUN mkdir -p /ext-src/pg_hint_plan-src /postgres/contrib/file_fdw /ext-src/postgis-src/ && chown postgres /ext-src/pg_hint_plan-src /postgres/contrib/file_fdw /ext-src/postgis-src
+RUN mkdir -p /ext-src/pg_hint_plan-src /postgres/contrib/file_fdw && chown postgres /ext-src/pg_hint_plan-src /postgres/contrib/file_fdw

 USER postgres
--- a/docker-compose/compute_wrapper/shell/compute.sh
+++ b/docker-compose/compute_wrapper/shell/compute.sh
@@ -1,18 +1,18 @@
-#!/usr/bin/env bash
+#!/bin/bash
 set -eux

 # Generate a random tenant or timeline ID
 #
 # Takes a variable name as argument. The result is stored in that variable.
 generate_id() {
-    local -n resvar=${1}
-    printf -v resvar '%08x%08x%08x%08x' ${SRANDOM} ${SRANDOM} ${SRANDOM} ${SRANDOM}
+    local -n resvar=$1
+    printf -v resvar '%08x%08x%08x%08x' $SRANDOM $SRANDOM $SRANDOM $SRANDOM
 }

 PG_VERSION=${PG_VERSION:-14}

-readonly CONFIG_FILE_ORG=/var/db/postgres/configs/config.json
-readonly CONFIG_FILE=/tmp/config.json
+CONFIG_FILE_ORG=/var/db/postgres/configs/config.json
+CONFIG_FILE=/tmp/config.json

 # Test that the first library path that the dynamic loader looks in is the path
 # that we use for custom compiled software
@@ -20,17 +20,17 @@ first_path="$(ldconfig --verbose 2>/dev/null \
    | grep --invert-match ^$'\t' \
    | cut --delimiter=: --fields=1 \
    | head --lines=1)"
-test "${first_path}" = '/usr/local/lib'
+test "$first_path" == '/usr/local/lib' || true # Remove the || true in a follow-up PR. Needed for backwards compat.

 echo "Waiting pageserver become ready."
 while ! nc -z pageserver 6400; do
-     sleep 1
+     sleep 1;
 done
 echo "Page server is ready."

-cp "${CONFIG_FILE_ORG}" "${CONFIG_FILE}"
+cp ${CONFIG_FILE_ORG} ${CONFIG_FILE}

- if [[ -n "${TENANT_ID:-}" && -n "${TIMELINE_ID:-}" ]]; then
+ if [ -n "${TENANT_ID:-}" ] && [ -n "${TIMELINE_ID:-}" ]; then
   tenant_id=${TENANT_ID}
   timeline_id=${TIMELINE_ID}
 else
@@ -41,7 +41,7 @@ else
       "http://pageserver:9898/v1/tenant"
  )
  tenant_id=$(curl "${PARAMS[@]}" | jq -r .[0].id)
-  if [[ -z "${tenant_id}" || "${tenant_id}" = null ]]; then
+  if [ -z "${tenant_id}" ] || [ "${tenant_id}" = null ]; then
    echo "Create a tenant"
    generate_id tenant_id
    PARAMS=(
@@ -51,7 +51,7 @@ else
        "http://pageserver:9898/v1/tenant/${tenant_id}/location_config"
    )
    result=$(curl "${PARAMS[@]}")
-    printf '%s\n' "${result}" | jq .
+    echo $result | jq .
  fi

  echo "Check if a timeline present"
@@ -61,7 +61,7 @@ else
       "http://pageserver:9898/v1/tenant/${tenant_id}/timeline"
  )
  timeline_id=$(curl "${PARAMS[@]}" | jq -r .[0].timeline_id)
-  if [[ -z "${timeline_id}" || "${timeline_id}" = null ]]; then
+  if [ -z "${timeline_id}" ] || [ "${timeline_id}" = null ]; then
    generate_id timeline_id
    PARAMS=(
        -sbf
@@ -71,7 +71,7 @@ else
        "http://pageserver:9898/v1/tenant/${tenant_id}/timeline/"
    )
    result=$(curl "${PARAMS[@]}")
-    printf '%s\n' "${result}" | jq .
+    echo $result | jq .
  fi
 fi

@@ -82,10 +82,10 @@ else
 fi
 echo "Adding pgx_ulid"
 shared_libraries=$(jq -r '.spec.cluster.settings[] | select(.name=="shared_preload_libraries").value' ${CONFIG_FILE})
-sed -i "s|${shared_libraries}|${shared_libraries},${ulid_extension}|" ${CONFIG_FILE}
+sed -i "s/${shared_libraries}/${shared_libraries},${ulid_extension}/" ${CONFIG_FILE}
 echo "Overwrite tenant id and timeline id in spec file"
-sed -i "s|TENANT_ID|${tenant_id}|" ${CONFIG_FILE}
-sed -i "s|TIMELINE_ID|${timeline_id}|" ${CONFIG_FILE}
+sed -i "s/TENANT_ID/${tenant_id}/" ${CONFIG_FILE}
+sed -i "s/TIMELINE_ID/${timeline_id}/" ${CONFIG_FILE}

 cat ${CONFIG_FILE}

@@ -93,6 +93,5 @@ echo "Start compute node"
 /usr/local/bin/compute_ctl --pgdata /var/db/postgres/compute \
     -C "postgresql://cloud_admin@localhost:55433/postgres"  \
     -b /usr/local/bin/postgres                              \
-     --compute-id "compute-${RANDOM}"                          \
-     --config "${CONFIG_FILE}"
-     --dev
+     --compute-id "compute-$RANDOM"                          \
+     --config "$CONFIG_FILE"
--- a/docker-compose/docker-compose.yml
+++ b/docker-compose/docker-compose.yml
@@ -186,14 +186,13 @@ services:

  neon-test-extensions:
    profiles: ["test-extensions"]
-    image: ${REPOSITORY:-ghcr.io/neondatabase}/neon-test-extensions-v${PG_TEST_VERSION:-${PG_VERSION:-16}}:${TEST_EXTENSIONS_TAG:-${TAG:-latest}}
+    image: ${REPOSITORY:-ghcr.io/neondatabase}/neon-test-extensions-v${PG_TEST_VERSION:-16}:${TEST_EXTENSIONS_TAG:-${TAG:-latest}}
    environment:
-      - PGUSER=${PGUSER:-cloud_admin}
-      - PGPASSWORD=${PGPASSWORD:-cloud_admin}
+      - PGPASSWORD=cloud_admin
    entrypoint:
      - "/bin/bash"
      - "-c"
    command:
-      - sleep 3600
+      - sleep 1800
    depends_on:
      - compute
--- a/docker-compose/docker_compose_test.sh
+++ b/docker-compose/docker_compose_test.sh
@@ -54,15 +54,6 @@ for pg_version in ${TEST_VERSION_ONLY-14 15 16 17}; do
        # It cannot be moved to Dockerfile now because the database directory is created after the start of the container
        echo Adding dummy config
        docker compose exec compute touch /var/db/postgres/compute/compute_ctl_temp_override.conf
-        # Prepare for the PostGIS test
-        docker compose exec compute mkdir -p /tmp/pgis_reg/pgis_reg_tmp
-        TMPDIR=$(mktemp -d)
-        docker compose cp neon-test-extensions:/ext-src/postgis-src/raster/test "${TMPDIR}"
-        docker compose cp neon-test-extensions:/ext-src/postgis-src/regress/00-regress-install "${TMPDIR}"
-        docker compose exec compute mkdir -p /ext-src/postgis-src/raster /ext-src/postgis-src/regress /ext-src/postgis-src/regress/00-regress-install
-        docker compose cp "${TMPDIR}/test" compute:/ext-src/postgis-src/raster/test
-        docker compose cp "${TMPDIR}/00-regress-install" compute:/ext-src/postgis-src/regress
-        rm -rf "${TMPDIR}"
        # The following block copies the files for the pg_hintplan test to the compute node for the extension test in an isolated docker-compose environment
        TMPDIR=$(mktemp -d)
        docker compose cp neon-test-extensions:/ext-src/pg_hint_plan-src/data "${TMPDIR}/data"
@@ -77,7 +68,7 @@ for pg_version in ${TEST_VERSION_ONLY-14 15 16 17}; do
        docker compose exec -T neon-test-extensions bash -c "(cd /postgres && patch -p1)" <"../compute/patches/contrib_pg${pg_version}.patch"
        # We are running tests now
        rm -f testout.txt testout_contrib.txt
-        docker compose exec -e USE_PGXS=1 -e SKIP=timescaledb-src,rdkit-src,pg_jsonschema-src,kq_imcx-src,wal2json_2_5-src,rag_jina_reranker_v1_tiny_en-src,rag_bge_small_en_v15-src \
+        docker compose exec -e USE_PGXS=1 -e SKIP=timescaledb-src,rdkit-src,postgis-src,pg_jsonschema-src,kq_imcx-src,wal2json_2_5-src,rag_jina_reranker_v1_tiny_en-src,rag_bge_small_en_v15-src \
        neon-test-extensions /run-tests.sh /ext-src | tee testout.txt && EXT_SUCCESS=1 || EXT_SUCCESS=0
        docker compose exec -e SKIP=start-scripts,postgres_fdw,ltree_plpython,jsonb_plpython,jsonb_plperl,hstore_plpython,hstore_plperl,dblink,bool_plperl \
        neon-test-extensions /run-tests.sh /postgres/contrib | tee testout_contrib.txt && CONTRIB_SUCCESS=1 || CONTRIB_SUCCESS=0
--- a/docker-compose/ext-src/h3-pg-src/neon-test.sh
+++ b/docker-compose/ext-src/h3-pg-src/neon-test.sh
@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-set -ex
-cd "$(dirname "${0}")"
-PG_REGRESS=$(dirname "$(pg_config --pgxs)")/../test/regress/pg_regress
-dropdb --if-exists contrib_regression
-createdb contrib_regression
-cd h3_postgis/test
-psql -d contrib_regression -c "CREATE EXTENSION postgis" -c "CREATE EXTENSION postgis_raster" -c "CREATE EXTENSION h3" -c "CREATE EXTENSION h3_postgis"
-TESTS=$(echo sql/* | sed 's|sql/||g; s|\.sql||g')
-${PG_REGRESS} --use-existing --dbname contrib_regression ${TESTS}
-cd ../../h3/test
-TESTS=$(echo sql/* | sed 's|sql/||g; s|\.sql||g')
-dropdb --if-exists contrib_regression
-createdb contrib_regression
-psql -d contrib_regression -c "CREATE EXTENSION h3"
-${PG_REGRESS} --use-existing --dbname contrib_regression ${TESTS}
--- a/docker-compose/ext-src/h3-pg-src/test-upgrade.sh
+++ b/docker-compose/ext-src/h3-pg-src/test-upgrade.sh
@@ -1,7 +0,0 @@
-#!/bin/sh
-set -ex
-cd "$(dirname ${0})"
-PG_REGRESS=$(dirname "$(pg_config --pgxs)")/../test/regress/pg_regress
-cd h3/test
-TESTS=$(echo sql/* | sed 's|sql/||g; s|\.sql||g')
-${PG_REGRESS} --use-existing --inputdir=./ --bindir='/usr/local/pgsql/bin'  --dbname=contrib_regression  ${TESTS}
--- a/docker-compose/ext-src/online_advisor-src/neon-test.sh
+++ b/docker-compose/ext-src/online_advisor-src/neon-test.sh
@@ -1,6 +0,0 @@
-#!/bin/sh
-set -ex
-cd "$(dirname "${0}")"
-if [ -f Makefile ]; then
-  make installcheck
-fi
--- a/docker-compose/ext-src/online_advisor-src/regular-test.sh
+++ b/docker-compose/ext-src/online_advisor-src/regular-test.sh
@@ -1,9 +0,0 @@
-#!/bin/sh
-set -ex
-cd "$(dirname ${0})"
-[ -f Makefile ] || exit 0
-dropdb --if-exist contrib_regression
-createdb contrib_regression
-PG_REGRESS=$(dirname "$(pg_config --pgxs)")/../test/regress/pg_regress
-TESTS=$(echo sql/* | sed 's|sql/||g; s|\.sql||g')
-${PG_REGRESS} --use-existing --inputdir=./ --bindir='/usr/local/pgsql/bin' --dbname=contrib_regression ${TESTS}
--- a/docker-compose/ext-src/postgis-src/README-Neon.md
+++ b/docker-compose/ext-src/postgis-src/README-Neon.md
@@ -1,70 +0,0 @@
-# PostGIS Testing in Neon
-
-This directory contains configuration files and patches for running PostGIS tests in the Neon database environment.
-
-## Overview
-
-PostGIS is a spatial database extension for PostgreSQL that adds support for geographic objects. Testing PostGIS compatibility ensures that Neon's modifications to PostgreSQL don't break compatibility with this critical extension.
-
-## PostGIS Versions
-
- PostgreSQL v17: PostGIS 3.5.0
- PostgreSQL v14/v15/v16: PostGIS 3.3.3
-
-## Test Configuration
-
-The test setup includes:
-
- `postgis-no-upgrade-test.patch`: Disables upgrade tests by removing the upgrade test section from regress/runtest.mk
- `postgis-regular-v16.patch`: Version-specific patch for PostgreSQL v16
- `postgis-regular-v17.patch`: Version-specific patch for PostgreSQL v17
- `regular-test.sh`: Script to run PostGIS tests as a regular user
- `neon-test.sh`: Script to handle version-specific test configurations
- `raster_outdb_template.sql`: Template for raster tests with explicit file paths
-
-## Excluded Tests
-
-**Important Note:** The test exclusions listed below are specifically for regular-user tests against staging instances. These exclusions are necessary because staging instances run with limited privileges and cannot perform operations requiring superuser access. Docker-compose based tests are not affected by these exclusions.
-
-### Tests Requiring Superuser Permissions
-
-These tests cannot be run as a regular user:
- `estimatedextent`
- `regress/core/legacy`
- `regress/core/typmod`
- `regress/loader/TestSkipANALYZE`
- `regress/loader/TestANALYZE`
-
-### Tests Requiring Filesystem Access
-
-These tests need direct filesystem access that is only possible for superusers:
- `loader/load_outdb`
-
-### Tests with Flaky Results
-
-These tests have assumptions that don't always hold true:
- `regress/core/computed_columns` - Assumes computed columns always outperform alternatives, which is not consistently true
-
-### Tests Requiring Tunable Parameter Modifications
-
-These tests attempt to modify the `postgis.gdal_enabled_drivers` parameter, which is only accessible to superusers:
- `raster/test/regress/rt_wkb`
- `raster/test/regress/rt_addband`
- `raster/test/regress/rt_setbandpath`
- `raster/test/regress/rt_fromgdalraster`
- `raster/test/regress/rt_asgdalraster`
- `raster/test/regress/rt_astiff`
- `raster/test/regress/rt_asjpeg`
- `raster/test/regress/rt_aspng`
- `raster/test/regress/permitted_gdal_drivers`
- Loader tests: `BasicOutDB`, `Tiled10x10`, `Tiled10x10Copy`, `Tiled8x8`, `TiledAuto`, `TiledAutoSkipNoData`, `TiledAutoCopyn`
-
-### Topology Tests (v17 only)
- `populate_topology_layer`
- `renametopogeometrycolumn`
-
-## Other Modifications
-
- Binary.sql tests are modified to use explicit file paths
- Server-side SQL COPY commands (which require superuser privileges) are converted to client-side `\copy` commands
- Upgrade tests are disabled
--- a/docker-compose/ext-src/postgis-src/neon-test.sh
+++ b/docker-compose/ext-src/postgis-src/neon-test.sh
@@ -1,6 +0,0 @@
-#!/bin/sh
-set -ex
-cd "$(dirname "$0")"
-patch -p1 <"postgis-common-${PG_VERSION}.patch"
-trap 'echo Cleaning up; patch -R -p1 <postgis-common-${PG_VERSION}.patch' EXIT
-make installcheck-base
--- a/docker-compose/ext-src/postgis-src/postgis-common-v16.patch
+++ b/docker-compose/ext-src/postgis-src/postgis-common-v16.patch
@@ -1,37 +0,0 @@
-diff --git a/regress/core/tests.mk b/regress/core/tests.mk
-index 3abd7bc..64a9254 100644
--- a/regress/core/tests.mk
-+++ b/regress/core/tests.mk
-@@ -144,11 +144,6 @@ TESTS_SLOW = \
- 	$(top_srcdir)/regress/core/concave_hull_hard \
- 	$(top_srcdir)/regress/core/knn_recheck
- 
-ifeq ($(shell expr "$(POSTGIS_PGSQL_VERSION)" ">=" 120),1)
-	TESTS += \
-		$(top_srcdir)/regress/core/computed_columns
-endif
-
- ifeq ($(shell expr "$(POSTGIS_GEOS_VERSION)" ">=" 30700),1)
- 	# GEOS-3.7 adds:
- 	# ST_FrechetDistance
-diff --git a/regress/runtest.mk b/regress/runtest.mk
-index c051f03..010e493 100644
--- a/regress/runtest.mk
-+++ b/regress/runtest.mk
-@@ -24,16 +24,6 @@ check-regress:
- 
- 	POSTGIS_TOP_BUILD_DIR=$(abs_top_builddir) $(PERL) $(top_srcdir)/regress/run_test.pl $(RUNTESTFLAGS) $(RUNTESTFLAGS_INTERNAL) $(TESTS)
- 
-	@if echo "$(RUNTESTFLAGS)" | grep -vq -- --upgrade; then \
-		echo "Running upgrade test as RUNTESTFLAGS did not contain that"; \
-		POSTGIS_TOP_BUILD_DIR=$(abs_top_builddir) $(PERL) $(top_srcdir)/regress/run_test.pl \
-      --upgrade \
-      $(RUNTESTFLAGS) \
-      $(RUNTESTFLAGS_INTERNAL) \
-      $(TESTS); \
-	else \
-		echo "Skipping upgrade test as RUNTESTFLAGS already requested upgrades"; \
-	fi
- 
- check-long:
- 	$(PERL) $(top_srcdir)/regress/run_test.pl $(RUNTESTFLAGS) $(TESTS) $(TESTS_SLOW)
--- a/docker-compose/ext-src/postgis-src/postgis-common-v17.patch
+++ b/docker-compose/ext-src/postgis-src/postgis-common-v17.patch
@@ -1,35 +0,0 @@
-diff --git a/regress/core/tests.mk b/regress/core/tests.mk
-index 9e05244..90987df 100644
--- a/regress/core/tests.mk
-+++ b/regress/core/tests.mk
-@@ -143,8 +143,7 @@ TESTS += \
- 	$(top_srcdir)/regress/core/oriented_envelope \
- 	$(top_srcdir)/regress/core/point_coordinates \
- 	$(top_srcdir)/regress/core/out_geojson \
-  $(top_srcdir)/regress/core/wrapx \
-	$(top_srcdir)/regress/core/computed_columns
-+  $(top_srcdir)/regress/core/wrapx
- 
- # Slow slow tests
- TESTS_SLOW = \
-diff --git a/regress/runtest.mk b/regress/runtest.mk
-index 4b95b7e..449d5a2 100644
--- a/regress/runtest.mk
-+++ b/regress/runtest.mk
-@@ -24,16 +24,6 @@ check-regress:
- 
- 	@POSTGIS_TOP_BUILD_DIR=$(abs_top_builddir) $(PERL) $(top_srcdir)/regress/run_test.pl $(RUNTESTFLAGS) $(RUNTESTFLAGS_INTERNAL) $(TESTS)
- 
-	@if echo "$(RUNTESTFLAGS)" | grep -vq -- --upgrade; then \
-		echo "Running upgrade test as RUNTESTFLAGS did not contain that"; \
-		POSTGIS_TOP_BUILD_DIR=$(abs_top_builddir) $(PERL) $(top_srcdir)/regress/run_test.pl \
-      --upgrade \
-      $(RUNTESTFLAGS) \
-      $(RUNTESTFLAGS_INTERNAL) \
-      $(TESTS); \
-	else \
-		echo "Skipping upgrade test as RUNTESTFLAGS already requested upgrades"; \
-	fi
- 
- check-long:
- 	$(PERL) $(top_srcdir)/regress/run_test.pl $(RUNTESTFLAGS) $(TESTS) $(TESTS_SLOW)
--- a/docker-compose/ext-src/postgis-src/postgis-regular-v16.patch
+++ b/docker-compose/ext-src/postgis-src/postgis-regular-v16.patch
@@ -1,186 +0,0 @@
-diff --git a/raster/test/regress/tests.mk b/raster/test/regress/tests.mk
-index 00918e1..7e2b6cd 100644
--- a/raster/test/regress/tests.mk
-+++ b/raster/test/regress/tests.mk
-@@ -17,9 +17,7 @@ override RUNTESTFLAGS_INTERNAL := \
-   $(RUNTESTFLAGS_INTERNAL) \
-   --after-upgrade-script $(top_srcdir)/raster/test/regress/hooks/hook-after-upgrade-raster.sql
- 
-RASTER_TEST_FIRST = \
-	$(top_srcdir)/raster/test/regress/check_gdal \
-	$(top_srcdir)/raster/test/regress/loader/load_outdb
-+RASTER_TEST_FIRST =
- 
- RASTER_TEST_LAST = \
- 	$(top_srcdir)/raster/test/regress/clean
-@@ -33,9 +31,7 @@ RASTER_TEST_IO = \
- 
- RASTER_TEST_BASIC_FUNC = \
- 	$(top_srcdir)/raster/test/regress/rt_bytea \
-	$(top_srcdir)/raster/test/regress/rt_wkb \
- 	$(top_srcdir)/raster/test/regress/box3d \
-	$(top_srcdir)/raster/test/regress/rt_addband \
- 	$(top_srcdir)/raster/test/regress/rt_band \
- 	$(top_srcdir)/raster/test/regress/rt_tile
- 
-@@ -73,16 +69,10 @@ RASTER_TEST_BANDPROPS = \
- 	$(top_srcdir)/raster/test/regress/rt_neighborhood \
- 	$(top_srcdir)/raster/test/regress/rt_nearestvalue \
- 	$(top_srcdir)/raster/test/regress/rt_pixelofvalue \
-	$(top_srcdir)/raster/test/regress/rt_polygon \
-	$(top_srcdir)/raster/test/regress/rt_setbandpath
-+	$(top_srcdir)/raster/test/regress/rt_polygon
- 
- RASTER_TEST_UTILITY = \
- 	$(top_srcdir)/raster/test/regress/rt_utility \
-	$(top_srcdir)/raster/test/regress/rt_fromgdalraster \
-	$(top_srcdir)/raster/test/regress/rt_asgdalraster \
-	$(top_srcdir)/raster/test/regress/rt_astiff \
-	$(top_srcdir)/raster/test/regress/rt_asjpeg \
-	$(top_srcdir)/raster/test/regress/rt_aspng \
- 	$(top_srcdir)/raster/test/regress/rt_reclass \
- 	$(top_srcdir)/raster/test/regress/rt_gdalwarp \
- 	$(top_srcdir)/raster/test/regress/rt_gdalcontour \
-@@ -120,21 +110,13 @@ RASTER_TEST_SREL = \
- 
- RASTER_TEST_BUGS = \
- 	$(top_srcdir)/raster/test/regress/bug_test_car5 \
-	$(top_srcdir)/raster/test/regress/permitted_gdal_drivers \
- 	$(top_srcdir)/raster/test/regress/tickets
- 
- RASTER_TEST_LOADER = \
- 	$(top_srcdir)/raster/test/regress/loader/Basic \
- 	$(top_srcdir)/raster/test/regress/loader/Projected \
- 	$(top_srcdir)/raster/test/regress/loader/BasicCopy \
-	$(top_srcdir)/raster/test/regress/loader/BasicFilename \
-	$(top_srcdir)/raster/test/regress/loader/BasicOutDB \
-	$(top_srcdir)/raster/test/regress/loader/Tiled10x10 \
-	$(top_srcdir)/raster/test/regress/loader/Tiled10x10Copy \
-	$(top_srcdir)/raster/test/regress/loader/Tiled8x8 \
-	$(top_srcdir)/raster/test/regress/loader/TiledAuto \
-	$(top_srcdir)/raster/test/regress/loader/TiledAutoSkipNoData \
-	$(top_srcdir)/raster/test/regress/loader/TiledAutoCopyn
-+	$(top_srcdir)/raster/test/regress/loader/BasicFilename
- 
- RASTER_TESTS := $(RASTER_TEST_FIRST) \
- 	$(RASTER_TEST_METADATA) $(RASTER_TEST_IO) $(RASTER_TEST_BASIC_FUNC) \
-diff --git a/regress/core/binary.sql b/regress/core/binary.sql
-index 7a36b65..ad78fc7 100644
--- a/regress/core/binary.sql
-+++ b/regress/core/binary.sql
-@@ -1,4 +1,5 @@
- SET client_min_messages TO warning;
-+
- CREATE SCHEMA tm;
- 
- CREATE TABLE tm.geoms (id serial, g geometry);
-@@ -31,24 +32,39 @@ SELECT st_force4d(g) FROM tm.geoms WHERE id < 15 ORDER BY id;
- INSERT INTO tm.geoms(g)
- SELECT st_setsrid(g,4326) FROM tm.geoms ORDER BY id;
- 
-COPY tm.geoms TO :tmpfile WITH BINARY;
-+-- define temp file path
-+\set tmpfile '/tmp/postgis_binary_test.dat'
-+
-+-- export
-+\set command '\\copy tm.geoms TO ':tmpfile' WITH (FORMAT BINARY)'
-+:command
-+
-+-- import
- CREATE TABLE tm.geoms_in AS SELECT * FROM tm.geoms LIMIT 0;
-COPY tm.geoms_in FROM :tmpfile WITH BINARY;
-SELECT 'geometry', count(*) FROM tm.geoms_in i, tm.geoms o WHERE i.id = o.id
- AND ST_OrderingEquals(i.g, o.g);
-+\set command '\\copy tm.geoms_in FROM ':tmpfile' WITH (FORMAT BINARY)'
-+:command
-+
-+SELECT 'geometry', count(*) FROM tm.geoms_in i, tm.geoms o
-+WHERE i.id = o.id AND ST_OrderingEquals(i.g, o.g);
- 
- CREATE TABLE tm.geogs AS SELECT id,g::geography FROM tm.geoms
- WHERE geometrytype(g) NOT LIKE '%CURVE%'
-   AND geometrytype(g) NOT LIKE '%CIRCULAR%'
-   AND geometrytype(g) NOT LIKE '%SURFACE%'
-   AND geometrytype(g) NOT LIKE 'TRIANGLE%'
-  AND geometrytype(g) NOT LIKE 'TIN%'
-;
-+  AND geometrytype(g) NOT LIKE 'TIN%';
- 
-COPY tm.geogs TO :tmpfile WITH BINARY;
-+-- export
-+\set command '\\copy tm.geogs TO ':tmpfile' WITH (FORMAT BINARY)'
-+:command
-+
-+-- import
- CREATE TABLE tm.geogs_in AS SELECT * FROM tm.geogs LIMIT 0;
-COPY tm.geogs_in FROM :tmpfile WITH BINARY;
-SELECT 'geometry', count(*) FROM tm.geogs_in i, tm.geogs o WHERE i.id = o.id
- AND ST_OrderingEquals(i.g::geometry, o.g::geometry);
-+\set command '\\copy tm.geogs_in FROM ':tmpfile' WITH (FORMAT BINARY)'
-+:command
-+
-+SELECT 'geometry', count(*) FROM tm.geogs_in i, tm.geogs o
-+WHERE i.id = o.id AND ST_OrderingEquals(i.g::geometry, o.g::geometry);
- 
- DROP SCHEMA tm CASCADE;
-+
-diff --git a/regress/core/tests.mk b/regress/core/tests.mk
-index 64a9254..94903c3 100644
--- a/regress/core/tests.mk
-+++ b/regress/core/tests.mk
-@@ -23,7 +23,6 @@ current_dir := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
- RUNTESTFLAGS_INTERNAL += \
-   --before-upgrade-script $(top_srcdir)/regress/hooks/hook-before-upgrade.sql \
-   --after-upgrade-script  $(top_srcdir)/regress/hooks/hook-after-upgrade.sql \
-  --after-create-script   $(top_srcdir)/regress/hooks/hook-after-create.sql \
-   --before-uninstall-script $(top_srcdir)/regress/hooks/hook-before-uninstall.sql
- 
- TESTS += \
-@@ -40,7 +39,6 @@ TESTS += \
- 	$(top_srcdir)/regress/core/dumppoints \
- 	$(top_srcdir)/regress/core/dumpsegments \
- 	$(top_srcdir)/regress/core/empty \
-	$(top_srcdir)/regress/core/estimatedextent \
- 	$(top_srcdir)/regress/core/forcecurve \
- 	$(top_srcdir)/regress/core/flatgeobuf \
- 	$(top_srcdir)/regress/core/geography \
-@@ -55,7 +53,6 @@ TESTS += \
- 	$(top_srcdir)/regress/core/out_marc21 \
- 	$(top_srcdir)/regress/core/in_encodedpolyline \
- 	$(top_srcdir)/regress/core/iscollection \
-	$(top_srcdir)/regress/core/legacy \
- 	$(top_srcdir)/regress/core/letters \
- 	$(top_srcdir)/regress/core/long_xact \
- 	$(top_srcdir)/regress/core/lwgeom_regress \
-@@ -112,7 +109,6 @@ TESTS += \
- 	$(top_srcdir)/regress/core/temporal_knn \
- 	$(top_srcdir)/regress/core/tickets \
- 	$(top_srcdir)/regress/core/twkb \
-	$(top_srcdir)/regress/core/typmod \
- 	$(top_srcdir)/regress/core/wkb \
- 	$(top_srcdir)/regress/core/wkt \
- 	$(top_srcdir)/regress/core/wmsservers \
-diff --git a/regress/loader/tests.mk b/regress/loader/tests.mk
-index 1fc77ac..c3cb9de 100644
--- a/regress/loader/tests.mk
-+++ b/regress/loader/tests.mk
-@@ -38,7 +38,5 @@ TESTS += \
- 	$(top_srcdir)/regress/loader/Latin1 \
- 	$(top_srcdir)/regress/loader/Latin1-implicit \
- 	$(top_srcdir)/regress/loader/mfile \
-	$(top_srcdir)/regress/loader/TestSkipANALYZE \
-	$(top_srcdir)/regress/loader/TestANALYZE \
- 	$(top_srcdir)/regress/loader/CharNoWidth
- 
-diff --git a/regress/run_test.pl b/regress/run_test.pl
-index 0ec5b2d..1c331f4 100755
--- a/regress/run_test.pl
-+++ b/regress/run_test.pl
-@@ -147,7 +147,6 @@ $ENV{"LANG"} = "C";
- # Add locale info to the psql options
- # Add pg12 precision suppression
- my $PGOPTIONS = $ENV{"PGOPTIONS"};
-$PGOPTIONS .= " -c lc_messages=C";
- $PGOPTIONS .= " -c client_min_messages=NOTICE";
- $PGOPTIONS .= " -c extra_float_digits=0";
- $ENV{"PGOPTIONS"} = $PGOPTIONS;
--- a/docker-compose/ext-src/postgis-src/postgis-regular-v17.patch
+++ b/docker-compose/ext-src/postgis-src/postgis-regular-v17.patch
@@ -1,208 +0,0 @@
-diff --git a/raster/test/regress/tests.mk b/raster/test/regress/tests.mk
-index 00918e1..7e2b6cd 100644
--- a/raster/test/regress/tests.mk
-+++ b/raster/test/regress/tests.mk
-@@ -17,9 +17,7 @@ override RUNTESTFLAGS_INTERNAL := \
-   $(RUNTESTFLAGS_INTERNAL) \
-   --after-upgrade-script $(top_srcdir)/raster/test/regress/hooks/hook-after-upgrade-raster.sql
- 
-RASTER_TEST_FIRST = \
-	$(top_srcdir)/raster/test/regress/check_gdal \
-	$(top_srcdir)/raster/test/regress/loader/load_outdb
-+RASTER_TEST_FIRST =
- 
- RASTER_TEST_LAST = \
- 	$(top_srcdir)/raster/test/regress/clean
-@@ -33,9 +31,7 @@ RASTER_TEST_IO = \
- 
- RASTER_TEST_BASIC_FUNC = \
- 	$(top_srcdir)/raster/test/regress/rt_bytea \
-	$(top_srcdir)/raster/test/regress/rt_wkb \
- 	$(top_srcdir)/raster/test/regress/box3d \
-	$(top_srcdir)/raster/test/regress/rt_addband \
- 	$(top_srcdir)/raster/test/regress/rt_band \
- 	$(top_srcdir)/raster/test/regress/rt_tile
- 
-@@ -73,16 +69,10 @@ RASTER_TEST_BANDPROPS = \
- 	$(top_srcdir)/raster/test/regress/rt_neighborhood \
- 	$(top_srcdir)/raster/test/regress/rt_nearestvalue \
- 	$(top_srcdir)/raster/test/regress/rt_pixelofvalue \
-	$(top_srcdir)/raster/test/regress/rt_polygon \
-	$(top_srcdir)/raster/test/regress/rt_setbandpath
-+	$(top_srcdir)/raster/test/regress/rt_polygon
- 
- RASTER_TEST_UTILITY = \
- 	$(top_srcdir)/raster/test/regress/rt_utility \
-	$(top_srcdir)/raster/test/regress/rt_fromgdalraster \
-	$(top_srcdir)/raster/test/regress/rt_asgdalraster \
-	$(top_srcdir)/raster/test/regress/rt_astiff \
-	$(top_srcdir)/raster/test/regress/rt_asjpeg \
-	$(top_srcdir)/raster/test/regress/rt_aspng \
- 	$(top_srcdir)/raster/test/regress/rt_reclass \
- 	$(top_srcdir)/raster/test/regress/rt_gdalwarp \
- 	$(top_srcdir)/raster/test/regress/rt_gdalcontour \
-@@ -120,21 +110,13 @@ RASTER_TEST_SREL = \
- 
- RASTER_TEST_BUGS = \
- 	$(top_srcdir)/raster/test/regress/bug_test_car5 \
-	$(top_srcdir)/raster/test/regress/permitted_gdal_drivers \
- 	$(top_srcdir)/raster/test/regress/tickets
- 
- RASTER_TEST_LOADER = \
- 	$(top_srcdir)/raster/test/regress/loader/Basic \
- 	$(top_srcdir)/raster/test/regress/loader/Projected \
- 	$(top_srcdir)/raster/test/regress/loader/BasicCopy \
-	$(top_srcdir)/raster/test/regress/loader/BasicFilename \
-	$(top_srcdir)/raster/test/regress/loader/BasicOutDB \
-	$(top_srcdir)/raster/test/regress/loader/Tiled10x10 \
-	$(top_srcdir)/raster/test/regress/loader/Tiled10x10Copy \
-	$(top_srcdir)/raster/test/regress/loader/Tiled8x8 \
-	$(top_srcdir)/raster/test/regress/loader/TiledAuto \
-	$(top_srcdir)/raster/test/regress/loader/TiledAutoSkipNoData \
-	$(top_srcdir)/raster/test/regress/loader/TiledAutoCopyn
-+	$(top_srcdir)/raster/test/regress/loader/BasicFilename
- 
- RASTER_TESTS := $(RASTER_TEST_FIRST) \
- 	$(RASTER_TEST_METADATA) $(RASTER_TEST_IO) $(RASTER_TEST_BASIC_FUNC) \
-diff --git a/regress/core/binary.sql b/regress/core/binary.sql
-index 7a36b65..ad78fc7 100644
--- a/regress/core/binary.sql
-+++ b/regress/core/binary.sql
-@@ -1,4 +1,5 @@
- SET client_min_messages TO warning;
-+
- CREATE SCHEMA tm;
- 
- CREATE TABLE tm.geoms (id serial, g geometry);
-@@ -31,24 +32,39 @@ SELECT st_force4d(g) FROM tm.geoms WHERE id < 15 ORDER BY id;
- INSERT INTO tm.geoms(g)
- SELECT st_setsrid(g,4326) FROM tm.geoms ORDER BY id;
- 
-COPY tm.geoms TO :tmpfile WITH BINARY;
-+-- define temp file path
-+\set tmpfile '/tmp/postgis_binary_test.dat'
-+
-+-- export
-+\set command '\\copy tm.geoms TO ':tmpfile' WITH (FORMAT BINARY)'
-+:command
-+
-+-- import
- CREATE TABLE tm.geoms_in AS SELECT * FROM tm.geoms LIMIT 0;
-COPY tm.geoms_in FROM :tmpfile WITH BINARY;
-SELECT 'geometry', count(*) FROM tm.geoms_in i, tm.geoms o WHERE i.id = o.id
- AND ST_OrderingEquals(i.g, o.g);
-+\set command '\\copy tm.geoms_in FROM ':tmpfile' WITH (FORMAT BINARY)'
-+:command
-+
-+SELECT 'geometry', count(*) FROM tm.geoms_in i, tm.geoms o
-+WHERE i.id = o.id AND ST_OrderingEquals(i.g, o.g);
- 
- CREATE TABLE tm.geogs AS SELECT id,g::geography FROM tm.geoms
- WHERE geometrytype(g) NOT LIKE '%CURVE%'
-   AND geometrytype(g) NOT LIKE '%CIRCULAR%'
-   AND geometrytype(g) NOT LIKE '%SURFACE%'
-   AND geometrytype(g) NOT LIKE 'TRIANGLE%'
-  AND geometrytype(g) NOT LIKE 'TIN%'
-;
-+  AND geometrytype(g) NOT LIKE 'TIN%';
- 
-COPY tm.geogs TO :tmpfile WITH BINARY;
-+-- export
-+\set command '\\copy tm.geogs TO ':tmpfile' WITH (FORMAT BINARY)'
-+:command
-+
-+-- import
- CREATE TABLE tm.geogs_in AS SELECT * FROM tm.geogs LIMIT 0;
-COPY tm.geogs_in FROM :tmpfile WITH BINARY;
-SELECT 'geometry', count(*) FROM tm.geogs_in i, tm.geogs o WHERE i.id = o.id
- AND ST_OrderingEquals(i.g::geometry, o.g::geometry);
-+\set command '\\copy tm.geogs_in FROM ':tmpfile' WITH (FORMAT BINARY)'
-+:command
-+
-+SELECT 'geometry', count(*) FROM tm.geogs_in i, tm.geogs o
-+WHERE i.id = o.id AND ST_OrderingEquals(i.g::geometry, o.g::geometry);
- 
- DROP SCHEMA tm CASCADE;
-+
-diff --git a/regress/core/tests.mk b/regress/core/tests.mk
-index 90987df..74fe3f1 100644
--- a/regress/core/tests.mk
-+++ b/regress/core/tests.mk
-@@ -16,14 +16,13 @@ POSTGIS_PGSQL_VERSION=170
- POSTGIS_GEOS_VERSION=31101
- HAVE_JSON=yes
- HAVE_SPGIST=yes
-INTERRUPTTESTS=yes
-+INTERRUPTTESTS=no
- 
- current_dir := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
- 
- RUNTESTFLAGS_INTERNAL += \
-   --before-upgrade-script $(top_srcdir)/regress/hooks/hook-before-upgrade.sql \
-   --after-upgrade-script  $(top_srcdir)/regress/hooks/hook-after-upgrade.sql \
-  --after-create-script   $(top_srcdir)/regress/hooks/hook-after-create.sql \
-   --before-uninstall-script $(top_srcdir)/regress/hooks/hook-before-uninstall.sql
- 
- TESTS += \
-@@ -40,7 +39,6 @@ TESTS += \
- 	$(top_srcdir)/regress/core/dumppoints \
- 	$(top_srcdir)/regress/core/dumpsegments \
- 	$(top_srcdir)/regress/core/empty \
-	$(top_srcdir)/regress/core/estimatedextent \
- 	$(top_srcdir)/regress/core/forcecurve \
- 	$(top_srcdir)/regress/core/flatgeobuf \
- 	$(top_srcdir)/regress/core/frechet \
-@@ -60,7 +58,6 @@ TESTS += \
- 	$(top_srcdir)/regress/core/out_marc21 \
- 	$(top_srcdir)/regress/core/in_encodedpolyline \
- 	$(top_srcdir)/regress/core/iscollection \
-	$(top_srcdir)/regress/core/legacy \
- 	$(top_srcdir)/regress/core/letters \
- 	$(top_srcdir)/regress/core/lwgeom_regress \
- 	$(top_srcdir)/regress/core/measures \
-@@ -119,7 +116,6 @@ TESTS += \
- 	$(top_srcdir)/regress/core/temporal_knn \
- 	$(top_srcdir)/regress/core/tickets \
- 	$(top_srcdir)/regress/core/twkb \
-	$(top_srcdir)/regress/core/typmod \
- 	$(top_srcdir)/regress/core/wkb \
- 	$(top_srcdir)/regress/core/wkt \
- 	$(top_srcdir)/regress/core/wmsservers \
-diff --git a/regress/loader/tests.mk b/regress/loader/tests.mk
-index ac4f8ad..4bad4fc 100644
--- a/regress/loader/tests.mk
-+++ b/regress/loader/tests.mk
-@@ -38,7 +38,5 @@ TESTS += \
- 	$(top_srcdir)/regress/loader/Latin1 \
- 	$(top_srcdir)/regress/loader/Latin1-implicit \
- 	$(top_srcdir)/regress/loader/mfile \
-	$(top_srcdir)/regress/loader/TestSkipANALYZE \
-	$(top_srcdir)/regress/loader/TestANALYZE \
- 	$(top_srcdir)/regress/loader/CharNoWidth \
- 
-diff --git a/regress/run_test.pl b/regress/run_test.pl
-index cac4b2e..4c7c82b 100755
--- a/regress/run_test.pl
-+++ b/regress/run_test.pl
-@@ -238,7 +238,6 @@ $ENV{"LANG"} = "C";
- # Add locale info to the psql options
- # Add pg12 precision suppression
- my $PGOPTIONS = $ENV{"PGOPTIONS"};
-$PGOPTIONS .= " -c lc_messages=C";
- $PGOPTIONS .= " -c client_min_messages=NOTICE";
- $PGOPTIONS .= " -c extra_float_digits=0";
- $ENV{"PGOPTIONS"} = $PGOPTIONS;
-diff --git a/topology/test/tests.mk b/topology/test/tests.mk
-index cbe2633..2c7c18f 100644
--- a/topology/test/tests.mk
-+++ b/topology/test/tests.mk
-@@ -46,9 +46,7 @@ TESTS += \
- 	$(top_srcdir)/topology/test/regress/legacy_query.sql \
- 	$(top_srcdir)/topology/test/regress/legacy_validate.sql \
- 	$(top_srcdir)/topology/test/regress/polygonize.sql \
-	$(top_srcdir)/topology/test/regress/populate_topology_layer.sql \
- 	$(top_srcdir)/topology/test/regress/removeunusedprimitives.sql \
-	$(top_srcdir)/topology/test/regress/renametopogeometrycolumn.sql \
- 	$(top_srcdir)/topology/test/regress/renametopology.sql \
- 	$(top_srcdir)/topology/test/regress/share_sequences.sql \
- 	$(top_srcdir)/topology/test/regress/sqlmm.sql \
--- a/docker-compose/ext-src/postgis-src/raster_outdb_template.sql
+++ b/docker-compose/ext-src/postgis-src/raster_outdb_template.sql
--- a/docker-compose/ext-src/postgis-src/regular-test.sh
+++ b/docker-compose/ext-src/postgis-src/regular-test.sh
@@ -1,17 +0,0 @@
-#!/bin/bash
-set -ex
-cd "$(dirname "${0}")"
-dropdb --if-exist contrib_regression
-createdb contrib_regression
-psql -d contrib_regression -c "ALTER DATABASE contrib_regression SET TimeZone='UTC'" \
-     -c "ALTER DATABASE contrib_regression SET DateStyle='ISO, MDY'" \
-     -c "CREATE EXTENSION postgis SCHEMA public" \
-     -c "CREATE EXTENSION postgis_topology" \
-     -c "CREATE EXTENSION postgis_tiger_geocoder CASCADE" \
-     -c "CREATE EXTENSION postgis_raster SCHEMA public" \
-     -c "CREATE EXTENSION postgis_sfcgal SCHEMA public"
-patch -p1 <"postgis-common-${PG_VERSION}.patch"
-patch -p1 <"postgis-regular-${PG_VERSION}.patch"
-psql -d contrib_regression -f raster_outdb_template.sql
-trap 'patch -R -p1 <postgis-regular-${PG_VERSION}.patch && patch -R -p1 <"postgis-common-${PG_VERSION}.patch"' EXIT
-POSTGIS_REGRESS_DB=contrib_regression RUNTESTFLAGS=--nocreate make installcheck-base
--- a/docker-compose/run-tests.sh
+++ b/docker-compose/run-tests.sh
@@ -63,9 +63,5 @@ done
 for d in ${FAILED}; do
  cat "$(find $d -name regression.diffs)"
 done
-for postgis_diff in /tmp/pgis_reg/*_diff; do
-  echo "${postgis_diff}:"
-  cat "${postgis_diff}"
-done
 echo "${FAILED}"
 exit 1
--- a/docker-compose/test_extensions_upgrade.sh
+++ b/docker-compose/test_extensions_upgrade.sh
@@ -82,8 +82,7 @@ EXTENSIONS='[
 {"extname": "pg_ivm", "extdir": "pg_ivm-src"},
 {"extname": "pgjwt", "extdir": "pgjwt-src"},
 {"extname": "pgtap", "extdir": "pgtap-src"},
-{"extname": "pg_repack", "extdir": "pg_repack-src"},
-{"extname": "h3", "extdir": "h3-pg-src"}
+{"extname": "pg_repack", "extdir": "pg_repack-src"}
 ]'
 EXTNAMES=$(echo ${EXTENSIONS} | jq -r '.[].extname' | paste -sd ' ' -)
 COMPUTE_TAG=${NEW_COMPUTE_TAG} docker compose --profile test-extensions up --quiet-pull --build -d
--- a/endpoint_storage/Cargo.toml
+++ b/endpoint_storage/Cargo.toml
@@ -8,7 +8,6 @@ anyhow.workspace = true
 axum-extra.workspace = true
 axum.workspace = true
 camino.workspace = true
-clap.workspace = true
 futures.workspace = true
 jsonwebtoken.workspace = true
 prometheus.workspace = true
--- a/endpoint_storage/src/app.rs
+++ b/endpoint_storage/src/app.rs
@@ -462,8 +462,6 @@ MC4CAQAwBQYDK2VwBCIEID/Drmc1AA6U/znNRWpF3zEGegOATQxfkdWxitcOMsIH
        if var(REAL_S3_ENV).is_ok() {
            assert!(body.contains("remote_storage_s3_deleted_objects_total"));
        }
-
-        #[cfg(target_os = "linux")]
        assert!(body.contains("process_threads"));
    }

--- a/endpoint_storage/src/main.rs
+++ b/endpoint_storage/src/main.rs
@@ -4,8 +4,6 @@
 //! for large computes.
 mod app;
 use anyhow::Context;
-use clap::Parser;
-use std::net::{IpAddr, Ipv4Addr, SocketAddr};
 use tracing::info;
 use utils::logging;

@@ -14,29 +12,13 @@ const fn max_upload_file_limit() -> usize {
    100 * 1024 * 1024
 }

-const fn listen() -> SocketAddr {
-    SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), 51243)
-}
-
-#[derive(Parser)]
-struct Args {
-    #[arg(exclusive = true)]
-    config_file: Option<String>,
-    #[arg(long, default_value = "false", requires = "config")]
-    /// to allow testing k8s helm chart where we don't have s3 credentials
-    no_s3_check_on_startup: bool,
-    #[arg(long, value_name = "FILE")]
-    /// inline config mode for k8s helm chart
-    config: Option<String>,
-}
-
 #[derive(serde::Deserialize)]
+#[serde(tag = "type")]
 struct Config {
-    #[serde(default = "listen")]
    listen: std::net::SocketAddr,
    pemfile: camino::Utf8PathBuf,
    #[serde(flatten)]
-    storage_kind: remote_storage::TypedRemoteStorageKind,
+    storage_config: remote_storage::RemoteStorageConfig,
    #[serde(default = "max_upload_file_limit")]
    max_upload_file_limit: usize,
 }
@@ -49,18 +31,13 @@ async fn main() -> anyhow::Result<()> {
        logging::Output::Stdout,
    )?;

-    let args = Args::parse();
-    let config: Config = if let Some(config_path) = args.config_file {
-        info!("Reading config from {config_path}");
-        let config = std::fs::read_to_string(config_path)?;
-        serde_json::from_str(&config).context("parsing config")?
-    } else if let Some(config) = args.config {
-        info!("Reading inline config");
-        serde_json::from_str(&config).context("parsing config")?
-    } else {
-        anyhow::bail!("Supply either config file path or --config=inline-config");
-    };
-
+    let config: String = std::env::args().skip(1).take(1).collect();
+    if config.is_empty() {
+        anyhow::bail!("Usage: endpoint_storage config.json")
+    }
+    info!("Reading config from {config}");
+    let config = std::fs::read_to_string(config.clone())?;
+    let config: Config = serde_json::from_str(&config).context("parsing config")?;
    info!("Reading pemfile from {}", config.pemfile.clone());
    let pemfile = std::fs::read(config.pemfile.clone())?;
    info!("Loading public key from {}", config.pemfile.clone());
@@ -69,12 +46,9 @@ async fn main() -> anyhow::Result<()> {
    let listener = tokio::net::TcpListener::bind(config.listen).await.unwrap();
    info!("listening on {}", listener.local_addr().unwrap());

-    let storage =
-        remote_storage::GenericRemoteStorage::from_storage_kind(config.storage_kind).await?;
+    let storage = remote_storage::GenericRemoteStorage::from_config(&config.storage_config).await?;
    let cancel = tokio_util::sync::CancellationToken::new();
-    if !args.no_s3_check_on_startup {
-        app::check_storage_permissions(&storage, cancel.clone()).await?;
-    }
+    app::check_storage_permissions(&storage, cancel.clone()).await?;

    let proxy = std::sync::Arc::new(endpoint_storage::Storage {
        auth,
--- a/libs/compute_api/src/requests.rs
+++ b/libs/compute_api/src/requests.rs
@@ -16,7 +16,6 @@ pub static COMPUTE_AUDIENCE: &str = "compute";
 pub enum ComputeClaimsScope {
    /// An admin-scoped token allows access to all of `compute_ctl`'s authorized
    /// facilities.
-    #[serde(rename = "compute_ctl:admin")]
    Admin,
 }

@@ -25,7 +24,7 @@ impl FromStr for ComputeClaimsScope {

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        match s {
-            "compute_ctl:admin" => Ok(ComputeClaimsScope::Admin),
+            "admin" => Ok(ComputeClaimsScope::Admin),
            _ => Err(anyhow::anyhow!("invalid compute claims scope \"{s}\"")),
        }
    }
@@ -81,23 +80,3 @@ pub struct SetRoleGrantsRequest {
    pub privileges: Vec<Privilege>,
    pub role: PgIdent,
 }
-
-#[cfg(test)]
-mod test {
-    use std::str::FromStr;
-
-    use crate::requests::ComputeClaimsScope;
-
-    /// Confirm that whether we parse the scope by string or through serde, the
-    /// same values parse to the same enum variant.
-    #[test]
-    fn compute_request_scopes() {
-        const ADMIN_SCOPE: &str = "compute_ctl:admin";
-
-        let from_serde: ComputeClaimsScope =
-            serde_json::from_str(&format!("\"{ADMIN_SCOPE}\"")).unwrap();
-        let from_str = ComputeClaimsScope::from_str(ADMIN_SCOPE).unwrap();
-
-        assert_eq!(from_serde, from_str);
-    }
-}
--- a/libs/compute_api/src/responses.rs
+++ b/libs/compute_api/src/responses.rs
@@ -83,16 +83,6 @@ pub struct ComputeStatusResponse {
    pub error: Option<String>,
 }

-#[derive(Serialize, Clone, Copy, Debug, Deserialize, PartialEq, Eq, Default)]
-#[serde(rename_all = "snake_case")]
-pub enum TerminateMode {
-    #[default]
-    /// wait 30s till returning from /terminate to allow control plane to get the error
-    Fast,
-    /// return from /terminate immediately as soon as all components are terminated
-    Immediate,
-}
-
 #[derive(Serialize, Clone, Copy, Debug, Deserialize, PartialEq, Eq)]
 #[serde(rename_all = "snake_case")]
 pub enum ComputeStatus {
@@ -113,16 +103,11 @@ pub enum ComputeStatus {
    // control-plane to terminate it.
    Failed,
    // Termination requested
-    TerminationPending { mode: TerminateMode },
+    TerminationPending,
    // Terminated Postgres
    Terminated,
 }

-#[derive(Deserialize, Serialize)]
-pub struct TerminateResponse {
-    pub lsn: Option<utils::lsn::Lsn>,
-}
-
 impl Display for ComputeStatus {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
@@ -132,7 +117,7 @@ impl Display for ComputeStatus {
            ComputeStatus::Running => f.write_str("running"),
            ComputeStatus::Configuration => f.write_str("configuration"),
            ComputeStatus::Failed => f.write_str("failed"),
-            ComputeStatus::TerminationPending { .. } => f.write_str("termination-pending"),
+            ComputeStatus::TerminationPending => f.write_str("termination-pending"),
            ComputeStatus::Terminated => f.write_str("terminated"),
        }
    }
--- a/libs/compute_api/src/spec.rs
+++ b/libs/compute_api/src/spec.rs
@@ -4,7 +4,6 @@
 //! provide it by calling the compute_ctl's `/compute_ctl` endpoint, or
 //! compute_ctl can fetch it by calling the control plane's API.
 use std::collections::HashMap;
-use std::fmt::Display;

 use indexmap::IndexMap;
 use regex::Regex;
@@ -179,9 +178,9 @@ pub struct ComputeSpec {
    /// JWT for authorizing requests to endpoint storage service
    pub endpoint_storage_token: Option<String>,

-    /// Download LFC state from endpoint_storage and pass it to Postgres on startup
+    /// If true, download LFC state from endpoint_storage and pass it to Postgres on startup
    #[serde(default)]
-    pub autoprewarm: bool,
+    pub prewarm_lfc_on_startup: bool,
 }

 /// Feature flag to signal `compute_ctl` to enable certain experimental functionality.
@@ -193,9 +192,6 @@ pub enum ComputeFeature {
    /// track short-lived connections as user activity.
    ActivityMonitorExperimental,

-    /// Enable TLS functionality.
-    TlsExperimental,
-
    /// This is a special feature flag that is used to represent unknown feature flags.
    /// Basically all unknown to enum flags are represented as this one. See unit test
    /// `parse_unknown_features()` for more details.
@@ -254,44 +250,34 @@ impl RemoteExtSpec {
        }

        match self.extension_data.get(real_ext_name) {
-            Some(_ext_data) => Ok((
-                real_ext_name.to_string(),
-                Self::build_remote_path(build_tag, pg_major_version, real_ext_name)?,
-            )),
+            Some(_ext_data) => {
+                // We have decided to use the Go naming convention due to Kubernetes.
+
+                let arch = match std::env::consts::ARCH {
+                    "x86_64" => "amd64",
+                    "aarch64" => "arm64",
+                    arch => arch,
+                };
+
+                // Construct the path to the extension archive
+                // BUILD_TAG/PG_MAJOR_VERSION/extensions/EXTENSION_NAME.tar.zst
+                //
+                // Keep it in sync with path generation in
+                // https://github.com/neondatabase/build-custom-extensions/tree/main
+                let archive_path_str = format!(
+                    "{build_tag}/{arch}/{pg_major_version}/extensions/{real_ext_name}.tar.zst"
+                );
+                Ok((
+                    real_ext_name.to_string(),
+                    RemotePath::from_string(&archive_path_str)?,
+                ))
+            }
            None => Err(anyhow::anyhow!(
                "real_ext_name {} is not found",
                real_ext_name
            )),
        }
    }
-
-    /// Get the architecture-specific portion of the remote extension path. We
-    /// use the Go naming convention due to Kubernetes.
-    fn get_arch() -> &'static str {
-        match std::env::consts::ARCH {
-            "x86_64" => "amd64",
-            "aarch64" => "arm64",
-            arch => arch,
-        }
-    }
-
-    /// Build a [`RemotePath`] for an extension.
-    fn build_remote_path(
-        build_tag: &str,
-        pg_major_version: &str,
-        ext_name: &str,
-    ) -> anyhow::Result<RemotePath> {
-        let arch = Self::get_arch();
-
-        // Construct the path to the extension archive
-        // BUILD_TAG/PG_MAJOR_VERSION/extensions/EXTENSION_NAME.tar.zst
-        //
-        // Keep it in sync with path generation in
-        // https://github.com/neondatabase/build-custom-extensions/tree/main
-        RemotePath::from_string(&format!(
-            "{build_tag}/{arch}/{pg_major_version}/extensions/{ext_name}.tar.zst"
-        ))
-    }
 }

 #[derive(Clone, Copy, Debug, Default, Eq, PartialEq, Deserialize, Serialize)]
@@ -320,12 +306,6 @@ impl ComputeMode {
    }
 }

-impl Display for ComputeMode {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.write_str(self.to_type_str())
-    }
-}
-
 /// Log level for audit logging
 #[derive(Clone, Debug, Default, Eq, PartialEq, Deserialize, Serialize)]
 pub enum ComputeAudit {
@@ -538,37 +518,6 @@ mod tests {
            .expect("Library should be found");
    }

-    #[test]
-    fn remote_extension_path() {
-        let rspec: RemoteExtSpec = serde_json::from_value(serde_json::json!({
-            "public_extensions": ["ext"],
-            "custom_extensions": [],
-            "library_index": {
-                "extlib": "ext",
-            },
-            "extension_data": {
-                "ext": {
-                    "control_data": {
-                        "ext.control": ""
-                    },
-                    "archive_path": ""
-                }
-            },
-        }))
-        .unwrap();
-
-        let (_ext_name, ext_path) = rspec
-            .get_ext("ext", false, "latest", "v17")
-            .expect("Extension should be found");
-        // Starting with a forward slash would have consequences for the
-        // Url::join() that occurs when downloading a remote extension.
-        assert!(!ext_path.to_string().starts_with("/"));
-        assert_eq!(
-            ext_path,
-            RemoteExtSpec::build_remote_path("latest", "v17", "ext").unwrap()
-        );
-    }
-
    #[test]
    fn parse_spec_file() {
        let file = File::open("tests/cluster_spec.json").unwrap();
--- a/libs/compute_api/tests/cluster_spec.json
+++ b/libs/compute_api/tests/cluster_spec.json
@@ -85,7 +85,7 @@
                "vartype": "bool"
            },
            {
-                "name": "autoprewarm",
+                "name": "prewarm_lfc_on_startup",
                "value": "off",
                "vartype": "bool"
            },
--- a/libs/desim/src/executor.rs
+++ b/libs/desim/src/executor.rs
@@ -419,13 +419,13 @@ pub fn now() -> u64 {
    with_thread_context(|ctx| ctx.clock.get().unwrap().now())
 }

-pub fn exit(code: i32, msg: String) -> ! {
+pub fn exit(code: i32, msg: String) {
    with_thread_context(|ctx| {
        ctx.allow_panic.store(true, Ordering::SeqCst);
        let mut result = ctx.result.lock();
        *result = (code, msg);
        panic!("exit");
-    })
+    });
 }

 pub(crate) fn get_thread_ctx() -> Arc<ThreadContext> {
--- a/libs/metrics/src/hll.rs
+++ b/libs/metrics/src/hll.rs
@@ -107,7 +107,7 @@ impl<const N: usize> MetricType for HyperLogLogState<N> {
 }

 impl<const N: usize> HyperLogLogState<N> {
-    pub fn measure(&self, item: &(impl Hash + ?Sized)) {
+    pub fn measure(&self, item: &impl Hash) {
        // changing the hasher will break compatibility with previous measurements.
        self.record(BuildHasherDefault::<xxh3::Hash64>::default().hash_one(item));
    }
--- a/libs/metrics/src/lib.rs
+++ b/libs/metrics/src/lib.rs
@@ -27,7 +27,6 @@ pub use prometheus::{

 pub mod launch_timestamp;
 mod wrappers;
-pub use prometheus;
 pub use wrappers::{CountedReader, CountedWriter};
 mod hll;
 pub use hll::{HyperLogLog, HyperLogLogState, HyperLogLogVec};
--- a/libs/neon-shmem/Cargo.toml
+++ b/libs/neon-shmem/Cargo.toml
@@ -6,27 +6,8 @@ license.workspace = true

 [dependencies]
 thiserror.workspace = true
-nix.workspace = true
+nix.workspace=true
 workspace_hack = { version = "0.1", path = "../../workspace_hack" }
-rustc-hash = { version = "2.1.1" }
-rand = "0.9.1"
-libc.workspace = true
-lock_api = "0.4.13"
-
-[dev-dependencies]
-criterion = { workspace = true, features = ["html_reports"] }
-rand_distr = "0.5.1"
-xxhash-rust = { version = "0.8.15", features = ["xxh3"] }
-ahash.workspace = true
-twox-hash = { version = "2.1.1" }
-seahash = "4.1.0"
-hashbrown = { git = "https://github.com/quantumish/hashbrown.git", rev = "6610e6d" }
-foldhash = "0.1.5"
-

 [target.'cfg(target_os = "macos")'.dependencies]
 tempfile = "3.14.0"
-
-[[bench]]
-name = "hmap_resize"
-harness = false
--- a/libs/neon-shmem/benches/hmap_resize.rs
+++ b/libs/neon-shmem/benches/hmap_resize.rs
@@ -1,282 +0,0 @@
-use criterion::{criterion_group, criterion_main, BatchSize, Criterion, BenchmarkId};
-use neon_shmem::hash::HashMapAccess;
-use neon_shmem::hash::HashMapInit;
-use neon_shmem::hash::entry::Entry;
-use rand::prelude::*;
-use rand::distr::{Distribution, StandardUniform};
-use std::hash::BuildHasher;
-use std::default::Default;
-	
-// Taken from bindings to C code
-
-#[derive(Clone, Debug, Hash, Eq, PartialEq)]
-#[repr(C)]
-pub struct FileCacheKey {
-    pub _spc_id: u32,
-    pub _db_id: u32,
-    pub _rel_number: u32,
-    pub _fork_num: u32,
-    pub _block_num: u32,
-}
-
-impl Distribution<FileCacheKey> for StandardUniform {
-	// questionable, but doesn't need to be good randomness
-	fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> FileCacheKey {
-		FileCacheKey {
-			_spc_id: rng.random(),
-			_db_id: rng.random(),
-			_rel_number: rng.random(),
-			_fork_num: rng.random(),
-			_block_num: rng.random()
-		}
-    }
-}
-
-#[derive(Clone, Debug)]
-#[repr(C)]
-pub struct FileCacheEntry {
-    pub _offset: u32,
-    pub _access_count: u32,
-    pub _prev: *mut FileCacheEntry,
-    pub _next: *mut FileCacheEntry,
-    pub _state: [u32; 8],
-}
-
-impl FileCacheEntry {
-	fn dummy() -> Self {
-		Self {
-			_offset: 0,
-			_access_count: 0,
-			_prev: std::ptr::null_mut(),
-			_next: std::ptr::null_mut(),
-			_state: [0; 8]				
-		}
-	}
-}
-
-// Utilities for applying operations.
-
-#[derive(Clone, Debug)]
-struct TestOp<K,V>(K, Option<V>);
-
-fn apply_op<K: Clone + std::hash::Hash + Eq, V, S: std::hash::BuildHasher>(
-    op: TestOp<K,V>,
-    map: &mut HashMapAccess<K,V,S>,
-) {
-	let entry = map.entry(op.0);
-
-    match op.1 {
-		Some(new) => {
-			match entry {
-				Entry::Occupied(mut e) => Some(e.insert(new)),
-				Entry::Vacant(e) => { _ = e.insert(new).unwrap(); None },
-			}
-		},
-		None => {
-			match entry {
-				Entry::Occupied(e) => Some(e.remove()),
-				Entry::Vacant(_) => None,
-			}
-		},
-	};
-}
-
-// Hash utilities
-
-struct SeaRandomState {
-	k1: u64,
-	k2: u64,
-	k3: u64,
-	k4: u64 
-}
-
-impl std::hash::BuildHasher for SeaRandomState {
-	type Hasher = seahash::SeaHasher;
-	
-	fn build_hasher(&self) -> Self::Hasher {
-		seahash::SeaHasher::with_seeds(self.k1, self.k2, self.k3, self.k4)
-	}
-}
-
-impl SeaRandomState {
-	fn new() -> Self {
-		let mut rng = rand::rng();
-		Self { k1: rng.random(), k2: rng.random(), k3: rng.random(), k4: rng.random() }
-	}
-}
-
-fn small_benchs(c: &mut Criterion) {
-	let mut group = c.benchmark_group("Small maps");
-    group.sample_size(10);
-        
-	group.bench_function("small_rehash", |b| {
-		let ideal_filled = 4_000_000;
-		let size = 5_000_000;
-		let mut writer = HashMapInit::new_resizeable(size, size * 2).attach_writer();
-		let mut rng = rand::rng();		
-		while writer.get_num_buckets_in_use() < ideal_filled as usize {
-			let key: FileCacheKey = rng.random();
-			let val = FileCacheEntry::dummy();
-			apply_op(TestOp(key, Some(val)), &mut writer);
-		}
-		b.iter(|| writer.shuffle());
-	});
-	
-
-	group.bench_function("small_rehash_xxhash", |b| {
-		let ideal_filled = 4_000_000;
-		let size = 5_000_000;
-		let mut writer = HashMapInit::new_resizeable(size, size * 2)
-			.with_hasher(twox_hash::xxhash64::RandomState::default())
-			.attach_writer();
-		let mut rng = rand::rng();		
-		while writer.get_num_buckets_in_use() < ideal_filled as usize {
-			let key: FileCacheKey = rng.random();
-			let val = FileCacheEntry::dummy();
-			apply_op(TestOp(key, Some(val)), &mut writer);
-		}
-		b.iter(|| writer.shuffle());
-	});
-
-	
-	group.bench_function("small_rehash_ahash", |b| {
-		let ideal_filled = 4_000_000;
-		let size = 5_000_000;
-		let mut writer = HashMapInit::new_resizeable(size, size * 2)
-			.with_hasher(ahash::RandomState::default())
-			.attach_writer();
-		let mut rng = rand::rng();		
-		while writer.get_num_buckets_in_use() < ideal_filled as usize {
-			let key: FileCacheKey = rng.random();
-			let val = FileCacheEntry::dummy();
-			apply_op(TestOp(key, Some(val)), &mut writer);
-		}
-		b.iter(|| writer.shuffle());
-	});
-
-	group.bench_function("small_rehash_seahash", |b| {
-		let ideal_filled = 4_000_000;
-		let size = 5_000_000;
-		let mut writer = HashMapInit::new_resizeable(size, size * 2)
-			.with_hasher(SeaRandomState::new())
-			.attach_writer();
-		let mut rng = rand::rng();
-		while writer.get_num_buckets_in_use() < ideal_filled as usize {
-			let key: FileCacheKey = rng.random();
-			let val = FileCacheEntry::dummy();
-			apply_op(TestOp(key, Some(val)), &mut writer);
-		}
-		b.iter(|| writer.shuffle());
-	});
-
-	group.finish();	
-}
-
-fn real_benchs(c: &mut Criterion) {
-	let mut group = c.benchmark_group("Realistic workloads");
-	group.sample_size(10);	
-    group.bench_function("real_bulk_insert", |b| {
-		let size = 125_000_000;
-		let ideal_filled = 100_000_000;		
-		let mut rng = rand::rng();		
-		b.iter_batched(
-			|| HashMapInit::new_resizeable(size, size * 2).attach_writer(),
-			|writer| {
-				for _ in 0..ideal_filled {
-					let key: FileCacheKey = rng.random();
-					let val = FileCacheEntry::dummy();
-					let entry = writer.entry(key);
-					std::hint::black_box(match entry {
-						Entry::Occupied(mut e) => { e.insert(val); },
-						Entry::Vacant(e) => { _ = e.insert(val).unwrap(); },
-					})
-				}	
-			},
-			BatchSize::SmallInput,
-		)
-	});
-
-	group.bench_function("real_rehash", |b| {
-		let size = 125_000_000;
-		let ideal_filled = 100_000_000;		
-		let mut writer = HashMapInit::new_resizeable(size, size).attach_writer();
-		let mut rng = rand::rng();		
-		while writer.get_num_buckets_in_use() < ideal_filled {
-			let key: FileCacheKey = rng.random();
-			let val = FileCacheEntry::dummy();
-			apply_op(TestOp(key, Some(val)), &mut writer);
-		}
-		b.iter(|| writer.shuffle());
-	});
-	
-	group.bench_function("real_rehash_hashbrown", |b| {
-		let size = 125_000_000;
-		let ideal_filled = 100_000_000;
-		let mut writer = hashbrown::raw::RawTable::new();
-		let mut rng = rand::rng();
-		let hasher = rustc_hash::FxBuildHasher::default();
-		unsafe {
-			writer.resize(size, |(k,_)| hasher.hash_one(&k),
-						  hashbrown::raw::Fallibility::Infallible).unwrap();
-		}
-		while writer.len() < ideal_filled as usize {
-			let key: FileCacheKey = rng.random();
-			let val = FileCacheEntry::dummy();
-			writer.insert(hasher.hash_one(&key), (key, val), |(k,_)| hasher.hash_one(&k));
-		}
-		b.iter(|| unsafe { writer.table.rehash_in_place(
-			&|table, index| hasher.hash_one(&table.bucket::<(FileCacheKey, FileCacheEntry)>(index).as_ref().0),
-			std::mem::size_of::<(FileCacheKey, FileCacheEntry)>(),
-            if std::mem::needs_drop::<(FileCacheKey, FileCacheEntry)>() {
-                Some(|ptr| std::ptr::drop_in_place(ptr as *mut (FileCacheKey, FileCacheEntry)))
-            } else {
-                None
-            },
-		) });
-	});
-
-	for elems in [2, 4, 8, 16, 32, 64, 96, 112] {
-		group.bench_with_input(BenchmarkId::new("real_rehash_varied", elems), &elems, |b, &size| {
-			let ideal_filled = size * 1_000_000;
-			let size = 125_000_000;
-			let mut writer = HashMapInit::new_resizeable(size, size).attach_writer();
-			let mut rng = rand::rng();		
-			while writer.get_num_buckets_in_use() < ideal_filled as usize {
-				let key: FileCacheKey = rng.random();
-				let val = FileCacheEntry::dummy();
-				apply_op(TestOp(key, Some(val)), &mut writer);
-			}
-			b.iter(|| writer.shuffle());
-		});
-		group.bench_with_input(BenchmarkId::new("real_rehash_varied_hashbrown", elems), &elems, |b, &size| {
-			let ideal_filled = size * 1_000_000;
-			let size = 125_000_000;
-			let mut writer = hashbrown::raw::RawTable::new();
-			let mut rng = rand::rng();
-			let hasher = rustc_hash::FxBuildHasher::default();
-			unsafe {
-				writer.resize(size, |(k,_)| hasher.hash_one(&k),
-							  hashbrown::raw::Fallibility::Infallible).unwrap();
-			}
-			while writer.len() < ideal_filled as usize {
-				let key: FileCacheKey = rng.random();
-				let val = FileCacheEntry::dummy();
-				writer.insert(hasher.hash_one(&key), (key, val), |(k,_)| hasher.hash_one(&k));
-			}
-			b.iter(|| unsafe { writer.table.rehash_in_place(
-				&|table, index| hasher.hash_one(&table.bucket::<(FileCacheKey, FileCacheEntry)>(index).as_ref().0),
-				std::mem::size_of::<(FileCacheKey, FileCacheEntry)>(),
-				if std::mem::needs_drop::<(FileCacheKey, FileCacheEntry)>() {
-					Some(|ptr| std::ptr::drop_in_place(ptr as *mut (FileCacheKey, FileCacheEntry)))
-				} else {
-					None
-				},
-			) });
-		});
-	}
-	
-	group.finish();
-}
-	
-criterion_group!(benches, small_benchs, real_benchs);
-criterion_main!(benches);
--- a/libs/neon-shmem/src/hash.rs
+++ b/libs/neon-shmem/src/hash.rs
@@ -1,533 +0,0 @@
-//! Resizable hash table implementation on top of byte-level storage (either a [`ShmemHandle`] or a fixed byte array).
-//!
-//! This hash table has two major components: the bucket array and the dictionary. Each bucket within the
-//! bucket array contains a `Option<(K, V)>` and an index of another bucket. In this way there is both an 
-//! implicit freelist within the bucket array (`None` buckets point to other `None` entries) and various hash
-//! chains within the bucket array (a Some bucket will point to other Some buckets that had the same hash).
-//!
-//! Buckets are never moved unless they are within a region that is being shrunk, and so the actual hash-
-//! dependent component is done with the dictionary. When a new key is inserted into the map, a position
-//! within the dictionary is decided based on its hash, the data is inserted into an empty bucket based
-//! off of the freelist, and then the index of said bucket is placed in the dictionary.
-//!
-//! This map is resizable (if initialized on top of a [`ShmemHandle`]). Both growing and shrinking happen
-//! in-place and are at a high level achieved by expanding/reducing the bucket array and rebuilding the
-//! dictionary by rehashing all keys.
-
-use std::hash::{Hash, BuildHasher};
-use std::mem::MaybeUninit;
-
-use crate::{shmem, sync::*};
-use crate::shmem::ShmemHandle;
-
-mod core;
-pub mod entry;
-
-#[cfg(test)]
-mod tests;
-
-use core::{Bucket, CoreHashMap, INVALID_POS};
-use entry::{Entry, OccupiedEntry, VacantEntry, PrevPos};
-
-/// Builder for a [`HashMapAccess`].
-#[must_use]
-pub struct HashMapInit<'a, K, V, S = rustc_hash::FxBuildHasher> {
-    shmem_handle: Option<ShmemHandle>,
-    shared_ptr: *mut RwLock<HashMapShared<'a, K, V>>,
-	shared_size: usize,
-	hasher: S,
-	num_buckets: u32,
-}
-
-/// Accessor for a hash table. 
-pub struct HashMapAccess<'a, K, V, S = rustc_hash::FxBuildHasher> {
-    shmem_handle: Option<ShmemHandle>,
-    shared_ptr: *mut HashMapShared<'a, K, V>,
-	hasher: S,
-}
-
-unsafe impl<K: Sync, V: Sync, S> Sync for HashMapAccess<'_, K, V, S> {}
-unsafe impl<K: Send, V: Send, S> Send for HashMapAccess<'_, K, V, S> {}
-
-impl<'a, K: Clone + Hash + Eq, V, S> HashMapInit<'a, K, V, S> {
-	pub fn with_hasher<T: BuildHasher>(self, hasher: T) -> HashMapInit<'a, K, V, T> {
-		HashMapInit {
-			hasher,
-			shmem_handle: self.shmem_handle,
-			shared_ptr: self.shared_ptr,
-			shared_size: self.shared_size,
-			num_buckets: self.num_buckets,
-		}
-	}
-
-	/// Loosely (over)estimate the size needed to store a hash table with `num_buckets` buckets.
-	pub fn estimate_size(num_buckets: u32) -> usize {
-        // add some margin to cover alignment etc.
-        CoreHashMap::<K, V>::estimate_size(num_buckets) + size_of::<HashMapShared<K, V>>() + 1000
-    }
-
-	/// Initialize a table for writing.
-    pub fn attach_writer(self) -> HashMapAccess<'a, K, V, S> {
-        let mut ptr: *mut u8 = self.shared_ptr.cast();
-        let end_ptr: *mut u8 = unsafe { ptr.add(self.shared_size) };
-
-		// carve out area for the One Big Lock (TM) and the HashMapShared.
-		ptr = unsafe { ptr.add(ptr.align_offset(align_of::<libc::pthread_rwlock_t>())) };
-		let raw_lock_ptr = ptr;
-		ptr = unsafe { ptr.add(size_of::<libc::pthread_rwlock_t>()) };
-		ptr = unsafe { ptr.add(ptr.align_offset(align_of::<HashMapShared<K, V>>())) };
-		let shared_ptr: *mut HashMapShared<K, V> = ptr.cast();
-        ptr = unsafe { ptr.add(size_of::<HashMapShared<K, V>>()) };
-						
-        // carve out the buckets
-        ptr = unsafe { ptr.byte_add(ptr.align_offset(align_of::<core::Bucket<K, V>>())) };
-        let buckets_ptr = ptr;
-        ptr = unsafe { ptr.add(size_of::<core::Bucket<K, V>>() * self.num_buckets as usize) };
-
-        // use remaining space for the dictionary
-        ptr = unsafe { ptr.byte_add(ptr.align_offset(align_of::<u32>())) };
-        assert!(ptr.addr() < end_ptr.addr());
-        let dictionary_ptr = ptr;
-        let dictionary_size = unsafe { end_ptr.byte_offset_from(ptr) / size_of::<u32>() as isize };
-        assert!(dictionary_size > 0);
-
-        let buckets =
-            unsafe { std::slice::from_raw_parts_mut(buckets_ptr.cast(), self.num_buckets as usize) };
-        let dictionary = unsafe {
-            std::slice::from_raw_parts_mut(dictionary_ptr.cast(), dictionary_size as usize)
-        };
-        let hashmap = CoreHashMap::new(buckets, dictionary);
-		let lock = RwLock::from_raw(PthreadRwLock::new(raw_lock_ptr.cast()), hashmap);
-		unsafe {
-			std::ptr::write(shared_ptr, lock);
-		}
-		
-        HashMapAccess {
-            shmem_handle: self.shmem_handle,
-            shared_ptr,
-			hasher: self.hasher,
-        }
-    }
-
-	/// Initialize a table for reading. Currently identical to [`HashMapInit::attach_writer`].
-    pub fn attach_reader(self) -> HashMapAccess<'a, K, V, S> {
-        self.attach_writer()
-    }
-}
-
-/// Hash table data that is actually stored in the shared memory area.
-///
-/// NOTE: We carve out the parts from a contiguous chunk. Growing and shrinking the hash table
-/// relies on the memory layout! The data structures are laid out in the contiguous shared memory
-/// area as follows:
-///
-/// [`libc::pthread_rwlock_t`]
-/// [`HashMapShared`]
-/// [buckets]
-/// [dictionary]
-///
-/// In between the above parts, there can be padding bytes to align the parts correctly.
-type HashMapShared<'a, K, V> = RwLock<CoreHashMap<'a, K, V>>;
-
-impl<'a, K, V> HashMapInit<'a, K, V, rustc_hash::FxBuildHasher>
-where
-	K: Clone + Hash + Eq
-{
-	/// Place the hash table within a user-supplied fixed memory area.
-	pub fn with_fixed(
-		num_buckets: u32,
-        area: &'a mut [MaybeUninit<u8>],
-    ) -> Self {
-		Self {
-			num_buckets,
-			shmem_handle: None,
-			shared_ptr: area.as_mut_ptr().cast(),
-			shared_size: area.len(),
-			hasher: rustc_hash::FxBuildHasher,
-		}		
-    }
-
-    /// Place a new hash map in the given shared memory area
-	///
-	/// # Panics
-	/// Will panic on failure to resize area to expected map size.
-    pub fn with_shmem(num_buckets: u32, shmem: ShmemHandle) -> Self {
-		let size = Self::estimate_size(num_buckets);
-		shmem
-            .set_size(size)
-            .expect("could not resize shared memory area");
-		Self {
-			num_buckets,
-			shared_ptr: shmem.data_ptr.as_ptr().cast(),
-			shmem_handle: Some(shmem),
-			shared_size: size,
-			hasher: rustc_hash::FxBuildHasher
-		}
-    }
-
-	/// Make a resizable hash map within a new shared memory area with the given name.
-	pub fn new_resizeable_named(num_buckets: u32, max_buckets: u32, name: &str) -> Self {
-		let size = Self::estimate_size(num_buckets);
-		let max_size = Self::estimate_size(max_buckets);
-		let shmem = ShmemHandle::new(name, size, max_size)
-			.expect("failed to make shared memory area");
-		
-		Self {
-			num_buckets,
-			shared_ptr: shmem.data_ptr.as_ptr().cast(),
-			shmem_handle: Some(shmem),
-			shared_size: size,
-			hasher: rustc_hash::FxBuildHasher
-		}
-	}
-
-	/// Make a resizable hash map within a new anonymous shared memory area.
-	pub fn new_resizeable(num_buckets: u32, max_buckets: u32) -> Self {
-		use std::sync::atomic::{AtomicUsize, Ordering};
-		static COUNTER: AtomicUsize = AtomicUsize::new(0);
-		let val = COUNTER.fetch_add(1, Ordering::Relaxed);
-		let name = format!("neon_shmem_hmap{val}");
-		Self::new_resizeable_named(num_buckets, max_buckets, &name)
-	}
-}
-
-impl<'a, K, V, S: BuildHasher> HashMapAccess<'a, K, V, S>
-where
-    K: Clone + Hash + Eq,
-{
-	/// Hash a key using the map's hasher.
-	#[inline]
-    fn get_hash_value(&self, key: &K) -> u64 {
-		self.hasher.hash_one(key)        
-    }
-
-	fn entry_with_hash(&self, key: K, hash: u64) -> Entry<'a, '_, K, V> {
-		let mut map = unsafe { self.shared_ptr.as_ref() }.unwrap().write();
-        let dict_pos = hash as usize % map.dictionary.len();
-        let first = map.dictionary[dict_pos];
-        if first == INVALID_POS {
-            // no existing entry
-            return Entry::Vacant(VacantEntry {
-                map,
-                key,
-                dict_pos: dict_pos as u32,
-            });
-        }
-
-        let mut prev_pos = PrevPos::First(dict_pos as u32);
-        let mut next = first;
-        loop {
-            let bucket = &mut map.buckets[next as usize];
-            let (bucket_key, _bucket_value) = bucket.inner.as_mut().expect("entry is in use");
-            if *bucket_key == key {
-                // found existing entry
-                return Entry::Occupied(OccupiedEntry {
-                    map,
-                    _key: key,
-                    prev_pos,
-                    bucket_pos: next,
-                });
-            }
-
-            if bucket.next == INVALID_POS {
-                // No existing entry
-                return Entry::Vacant(VacantEntry {
-                    map,
-                    key,
-                    dict_pos: dict_pos as u32,
-                });
-            }
-            prev_pos = PrevPos::Chained(next);
-            next = bucket.next;
-        }
-	}
-	
-	/// Get a reference to the corresponding value for a key.
-    pub fn get<'e>(&'e self, key: &K) -> Option<ValueReadGuard<'e, V>> {
-		let hash = self.get_hash_value(key);
-        let map = unsafe { self.shared_ptr.as_ref() }.unwrap().read();
-		RwLockReadGuard::try_map(map, |m| m.get_with_hash(key, hash)).ok()
-    }
-
-	/// Get a reference to the entry containing a key.
-    pub fn entry(&self, key: K) -> Entry<'a, '_, K, V> {
-		let hash = self.get_hash_value(&key);
-		self.entry_with_hash(key, hash)
-    }
-
-	/// Remove a key given its hash. Returns the associated value if it existed.
-    pub fn remove(&self, key: &K) -> Option<V> {
-		let hash = self.get_hash_value(&key);
-        match self.entry_with_hash(key.clone(), hash) {
-            Entry::Occupied(e) => Some(e.remove()),
-            Entry::Vacant(_) => None
-        }
-    }
-
-	/// Insert/update a key. Returns the previous associated value if it existed.
-	///
-	/// # Errors
-	/// Will return [`core::FullError`] if there is no more space left in the map.
-    pub fn insert(&self, key: K, value: V) -> Result<Option<V>, core::FullError> {
-		let hash = self.get_hash_value(&key);
-        match self.entry_with_hash(key.clone(), hash) {
-            Entry::Occupied(mut e) => Ok(Some(e.insert(value))),
-            Entry::Vacant(e) => {
-				_ = e.insert(value)?;
-				Ok(None)
-			}
-        }
-    }
-	
-	/// Optionally return the entry for a bucket at a given index if it exists.
-	///
-	/// Has more overhead than one would intuitively expect: performs both a clone of the key
-	/// due to the [`OccupiedEntry`] type owning the key and also a hash of the key in order
-	/// to enable repairing the hash chain if the entry is removed.
-    pub fn entry_at_bucket(&self, pos: usize) -> Option<OccupiedEntry<'a, '_, K, V>> {
-        let map = unsafe { self.shared_ptr.as_mut() }.unwrap().write();
-		if pos >= map.buckets.len() {
-			return None;
-		}
-
-		let entry = map.buckets[pos].inner.as_ref();
-		match entry {
-			Some((key, _)) => Some(OccupiedEntry {
-				_key: key.clone(),
-				bucket_pos: pos as u32,
-				prev_pos: entry::PrevPos::Unknown(
-					self.get_hash_value(&key)
-				),
-				map,
-			}),
-			_ => None,
-		}
-    }
-
-	/// Returns the number of buckets in the table.
-    pub fn get_num_buckets(&self) -> usize {
-        let map = unsafe { self.shared_ptr.as_ref() }.unwrap().read();
-        map.get_num_buckets()
-    }
-
-    /// Return the key and value stored in bucket with given index. This can be used to
-    /// iterate through the hash map.
-	// TODO: An Iterator might be nicer. The communicator's clock algorithm needs to
-	// _slowly_ iterate through all buckets with its clock hand,  without holding a lock.
-	// If we switch to an Iterator, it must not hold the lock.
-    pub fn get_at_bucket(&self, pos: usize) -> Option<ValueReadGuard<(K, V)>> {
-        let map = unsafe { self.shared_ptr.as_ref() }.unwrap().read();
-        if pos >= map.buckets.len() {
-            return None;
-        }
-		RwLockReadGuard::try_map(map, |m| m.buckets[pos].inner.as_ref()).ok()
-    }
-
-	/// Returns the index of the bucket a given value corresponds to.
-    pub fn get_bucket_for_value(&self, val_ptr: *const V) -> usize {
-        let map = unsafe { self.shared_ptr.as_ref() }.unwrap().read();
-
-        let origin = map.buckets.as_ptr();
-        let idx = (val_ptr as usize - origin as usize) / size_of::<Bucket<K, V>>();
-        assert!(idx < map.buckets.len());
-
-        idx
-    }
-
-    /// Returns the number of occupied buckets in the table.
-    pub fn get_num_buckets_in_use(&self) -> usize {
-        let map = unsafe { self.shared_ptr.as_ref() }.unwrap().read();
-        map.buckets_in_use as usize
-    }
-
-	/// Clears all entries in a table. Does not reset any shrinking operations.
-	pub fn clear(&self) {
-		let mut map = unsafe { self.shared_ptr.as_mut() }.unwrap().write();
-        map.clear();
-	}
-	
-	/// Perform an in-place rehash of some region (0..`rehash_buckets`) of the table and reset
-	/// the `buckets` and `dictionary` slices to be as long as `num_buckets`. Resets the freelist
-	/// in the process.
-	fn rehash_dict(
-		&self,
-		inner: &mut CoreHashMap<'a, K, V>,
-		buckets_ptr: *mut core::Bucket<K, V>,
-		end_ptr: *mut u8,
-		num_buckets: u32,
-		rehash_buckets: u32,
-	) {
-		inner.free_head = INVALID_POS;
-		
-        let buckets;
-        let dictionary;
-        unsafe {
-            let buckets_end_ptr = buckets_ptr.add(num_buckets as usize);
-            let dictionary_ptr: *mut u32 = buckets_end_ptr
-                .byte_add(buckets_end_ptr.align_offset(align_of::<u32>()))
-                .cast();
-            let dictionary_size: usize =
-                end_ptr.byte_offset_from(buckets_end_ptr) as usize / size_of::<u32>();
-
-            buckets = std::slice::from_raw_parts_mut(buckets_ptr, num_buckets as usize);
-            dictionary = std::slice::from_raw_parts_mut(dictionary_ptr, dictionary_size);
-        }		
-        for e in dictionary.iter_mut() {
-            *e = INVALID_POS;
-        }
-		
-        for (i, bucket) in buckets.iter_mut().enumerate().take(rehash_buckets as usize) {
-            if bucket.inner.is_none() {
-				bucket.next = inner.free_head;
-                inner.free_head = i as u32;
-				continue;
-            }
-
-			let hash = self.hasher.hash_one(&bucket.inner.as_ref().unwrap().0);
-            let pos: usize = (hash % dictionary.len() as u64) as usize;
-            bucket.next = dictionary[pos];
-            dictionary[pos] = i as u32;
-        }
-
-        inner.dictionary = dictionary;
-        inner.buckets = buckets;
-	}
-
-	/// Rehash the map without growing or shrinking. 
-	pub fn shuffle(&self) {
-		let mut map = unsafe { self.shared_ptr.as_mut() }.unwrap().write();
-		let num_buckets = map.get_num_buckets() as u32;
-		let size_bytes = HashMapInit::<K, V, S>::estimate_size(num_buckets);
-		let end_ptr: *mut u8 = unsafe { self.shared_ptr.byte_add(size_bytes).cast() };
-        let buckets_ptr = map.buckets.as_mut_ptr();
-		self.rehash_dict(&mut map, buckets_ptr, end_ptr, num_buckets, num_buckets);
-	}
-
-    /// Grow the number of buckets within the table. 
-    ///
-    /// 1. Grows the underlying shared memory area
-    /// 2. Initializes new buckets and overwrites the current dictionary
-    /// 3. Rehashes the dictionary
-	///
-	/// # Panics 
-	/// Panics if called on a map initialized with [`HashMapInit::with_fixed`].
-	///
-	/// # Errors
-	/// Returns an [`shmem::Error`] if any errors occur resizing the memory region.
-    pub fn grow(&self, num_buckets: u32) -> Result<(), shmem::Error> {
-        let mut map = unsafe { self.shared_ptr.as_mut() }.unwrap().write();
-        let old_num_buckets = map.buckets.len() as u32;
-
-        assert!(num_buckets >= old_num_buckets, "grow called with a smaller number of buckets");
-        if num_buckets == old_num_buckets {
-            return Ok(());
-        }
-        let shmem_handle = self
-            .shmem_handle
-            .as_ref()
-            .expect("grow called on a fixed-size hash table");
-
-        let size_bytes = HashMapInit::<K, V, S>::estimate_size(num_buckets);
-        shmem_handle.set_size(size_bytes)?;
-        let end_ptr: *mut u8 = unsafe { shmem_handle.data_ptr.as_ptr().add(size_bytes) };
-
-        // Initialize new buckets. The new buckets are linked to the free list.
-		// NB: This overwrites the dictionary!
-        let buckets_ptr = map.buckets.as_mut_ptr();
-        unsafe {
-            for i in old_num_buckets..num_buckets {
-                let bucket = buckets_ptr.add(i as usize);
-                bucket.write(core::Bucket {
-                    next: if i < num_buckets-1 {
-                        i + 1
-                    } else {
-                        map.free_head
-                    },
-                    inner: None,
-                });
-            }
-        }
-
-		self.rehash_dict(&mut map, buckets_ptr, end_ptr, num_buckets, old_num_buckets);
-        map.free_head = old_num_buckets;
-
-        Ok(())
-    }
-
-	/// Begin a shrink, limiting all new allocations to be in buckets with index below `num_buckets`.
-	///
-	/// # Panics
-	/// Panics if called on a map initialized with [`HashMapInit::with_fixed`] or if `num_buckets` is
-	/// greater than the number of buckets in the map.
-	pub fn begin_shrink(&mut self, num_buckets: u32) {
-		let mut map = unsafe { self.shared_ptr.as_mut() }.unwrap().write();
-		assert!(
-			num_buckets <= map.get_num_buckets() as u32,
-            "shrink called with a larger number of buckets"
-        );
-		_ = self
-            .shmem_handle
-            .as_ref()
-            .expect("shrink called on a fixed-size hash table");
-		map.alloc_limit = num_buckets;
-	}
-
-	/// If a shrink operation is underway, returns the target size of the map. Otherwise, returns None.
-	pub fn shrink_goal(&self) -> Option<usize> {
-		let map = unsafe { self.shared_ptr.as_mut() }.unwrap().read();
-        let goal = map.alloc_limit;
-		if goal == INVALID_POS { None } else { Some(goal as usize) }
-	}
-	
-	/// Complete a shrink after caller has evicted entries, removing the unused buckets and rehashing.
-	///
-	/// # Panics
-	/// The following cases result in a panic: 
-	/// - Calling this function on a map initialized with [`HashMapInit::with_fixed`].
-	/// - Calling this function on a map when no shrink operation is in progress.
-	/// - Calling this function on a map with `shrink_mode` set to [`HashMapShrinkMode::Remap`] and
-	///   there are more buckets in use than the value returned by [`HashMapAccess::shrink_goal`].
-	///
-	/// # Errors
-	/// Returns an [`shmem::Error`] if any errors occur resizing the memory region.
-	pub fn finish_shrink(&self) -> Result<(), shmem::Error> {
-		let mut map = unsafe { self.shared_ptr.as_mut() }.unwrap().write();
-		assert!(
-			map.alloc_limit != INVALID_POS,
-			"called finish_shrink when no shrink is in progress"
-		);
-
-		let num_buckets = map.alloc_limit; 
-
-		if map.get_num_buckets() == num_buckets as usize {
-            return Ok(());
-        }
-
-		assert!(
-			map.buckets_in_use <= num_buckets,
-			"called finish_shrink before enough entries were removed"
-		);
-		
-		for i in (num_buckets as usize)..map.buckets.len() {
-			if let Some((k, v)) = map.buckets[i].inner.take() {
-				// alloc_bucket increases count, so need to decrease since we're just moving
-				map.buckets_in_use -= 1;
-				map.alloc_bucket(k, v).unwrap();
-			}
-		}
-
-        let shmem_handle = self
-            .shmem_handle
-            .as_ref()
-            .expect("shrink called on a fixed-size hash table");
-
-		let size_bytes = HashMapInit::<K, V, S>::estimate_size(num_buckets);
-        shmem_handle.set_size(size_bytes)?;
-        let end_ptr: *mut u8 = unsafe { shmem_handle.data_ptr.as_ptr().add(size_bytes) };
-		let buckets_ptr = map.buckets.as_mut_ptr();
-		self.rehash_dict(&mut map, buckets_ptr, end_ptr, num_buckets, num_buckets);
-		map.alloc_limit = INVALID_POS;
-		
-		Ok(())
-	}
-}
--- a/libs/neon-shmem/src/hash/core.rs
+++ b/libs/neon-shmem/src/hash/core.rs
@@ -1,177 +0,0 @@
-//! Simple hash table with chaining.
-
-use std::hash::Hash;
-use std::mem::MaybeUninit;
-
-use crate::hash::entry::*;
-
-/// Invalid position within the map (either within the dictionary or bucket array).
-pub(crate) const INVALID_POS: u32 = u32::MAX;
-
-/// Fundamental storage unit within the hash table. Either empty or contains a key-value pair.
-/// Always part of a chain of some kind (either a freelist if empty or a hash chain if full).
-pub(crate) struct Bucket<K, V> {
-	/// Index of next bucket in the chain.
-	pub(crate) next: u32,
-	/// Key-value pair contained within bucket.
-    pub(crate) inner: Option<(K, V)>,
-}
-
-/// Core hash table implementation.
-pub(crate) struct CoreHashMap<'a, K, V> {
-	/// Dictionary used to map hashes to bucket indices.
-    pub(crate) dictionary: &'a mut [u32],
-	/// Buckets containing key-value pairs.
-    pub(crate) buckets: &'a mut [Bucket<K, V>],
-	/// Head of the freelist.
-    pub(crate) free_head: u32,
-	/// Maximum index of a bucket allowed to be allocated. [`INVALID_POS`] if no limit.
-	pub(crate) alloc_limit: u32,
-    /// The number of currently occupied buckets.
-    pub(crate) buckets_in_use: u32,
-	// pub(crate) lock: libc::pthread_mutex_t,
-	// Unclear what the purpose of this is.
-    pub(crate) _user_list_head: u32,
-}
-
-/// Error for when there are no empty buckets left but one is needed.
-#[derive(Debug, PartialEq)]
-pub struct FullError();
-
-impl<'a, K: Clone + Hash + Eq, V> CoreHashMap<'a, K, V> {
-    const FILL_FACTOR: f32 = 0.60;
-
-	/// Estimate the size of data contained within the the hash map.
-    pub fn estimate_size(num_buckets: u32) -> usize {
-        let mut size = 0;
-
-        // buckets
-        size += size_of::<Bucket<K, V>>() * num_buckets as usize;
-
-        // dictionary
-        size += (f32::ceil((size_of::<u32>() * num_buckets as usize) as f32 / Self::FILL_FACTOR))
-            as usize;
-
-        size
-    }	
-
-    pub fn new(
-        buckets: &'a mut [MaybeUninit<Bucket<K, V>>],
-        dictionary: &'a mut [MaybeUninit<u32>],
-    ) -> Self {
-        // Initialize the buckets
-        for i in 0..buckets.len() {
-            buckets[i].write(Bucket {
-                next: if i < buckets.len() - 1 {
-                    i as u32 + 1
-                } else {
-                    INVALID_POS
-                },				
-                inner: None,
-            });
-        }
-
-        // Initialize the dictionary
-        for e in dictionary.iter_mut() {
-            e.write(INVALID_POS);
-        }
-
-        // TODO: use std::slice::assume_init_mut() once it stabilizes
-        let buckets =
-            unsafe { std::slice::from_raw_parts_mut(buckets.as_mut_ptr().cast(), buckets.len()) };
-        let dictionary = unsafe {
-            std::slice::from_raw_parts_mut(dictionary.as_mut_ptr().cast(), dictionary.len())
-        };
-
-        Self {
-            dictionary,
-            buckets,
-            free_head: 0,
-            buckets_in_use: 0,
-            _user_list_head: INVALID_POS,
-			alloc_limit: INVALID_POS,
-        }
-    }
-
-	/// Get the value associated with a key (if it exists) given its hash.
-    pub fn get_with_hash(&self, key: &K, hash: u64) -> Option<&V> {
-        let mut next = self.dictionary[hash as usize % self.dictionary.len()];
-        loop {
-            if next == INVALID_POS {
-                return None;
-            }
-
-            let bucket = &self.buckets[next as usize];
-            let (bucket_key, bucket_value) = bucket.inner.as_ref().expect("entry is in use");
-            if bucket_key == key {
-                return Some(bucket_value);
-            }
-            next = bucket.next;
-        }
-    }
-
-	/// Get number of buckets in map.
-    pub fn get_num_buckets(&self) -> usize {
-        self.buckets.len()
-    }
-
-	/// Clears all entries from the hashmap.
-	///
-	/// Does not reset any allocation limits, but does clear any entries beyond them.
-	pub fn clear(&mut self) {
-		for i in 0..self.buckets.len() {
-            self.buckets[i] = Bucket {
-                next: if i < self.buckets.len() - 1 {
-                    i as u32 + 1
-                } else {
-                    INVALID_POS
-                },				
-                inner: None,
-            }
-        }
-        for i in 0..self.dictionary.len() {
-            self.dictionary[i] = INVALID_POS;
-        }
-
-		self.free_head = 0;
-		self.buckets_in_use = 0;
-	}
-
-	/// Find the position of an unused bucket via the freelist and initialize it. 
-    pub(crate) fn alloc_bucket(&mut self, key: K, value: V) -> Result<u32, FullError> {
-        let mut pos = self.free_head;
-
-		// Find the first bucket we're *allowed* to use.
-		let mut prev = PrevPos::First(self.free_head);
-		while pos != INVALID_POS && pos >= self.alloc_limit {
-			let bucket = &mut self.buckets[pos as usize];
-			prev = PrevPos::Chained(pos);
-			pos = bucket.next;
-		}
-		if pos == INVALID_POS {
-			return Err(FullError());
-		}
-
-		// Repair the freelist.
-		match prev {
-			PrevPos::First(_) => {
-				let next_pos = self.buckets[pos as usize].next;
-				self.free_head = next_pos;				
-			}
-			PrevPos::Chained(p) => if p != INVALID_POS {
-				let next_pos = self.buckets[pos as usize].next;
-				self.buckets[p as usize].next = next_pos;
-			},
-			_ => unreachable!()
-		}
-
-		// Initialize the bucket.
-		let bucket = &mut self.buckets[pos as usize];
-		self.buckets_in_use += 1;
-        bucket.next = INVALID_POS;
-        bucket.inner = Some((key, value));
-
-        Ok(pos)
-    }
-}
-
--- a/libs/neon-shmem/src/hash/entry.rs
+++ b/libs/neon-shmem/src/hash/entry.rs
@@ -1,139 +0,0 @@
-//! Equivalent of [`std::collections::hash_map::Entry`] for this hashmap.
-
-use crate::hash::core::{CoreHashMap, FullError, INVALID_POS};
-use crate::sync::{RwLockWriteGuard, ValueWriteGuard};
-
-use std::hash::Hash;
-use std::mem;
-
-
-pub enum Entry<'a, 'b, K, V> {
-	Occupied(OccupiedEntry<'a, 'b, K, V>),
-    Vacant(VacantEntry<'a, 'b, K, V>),
-}
-
-/// Enum representing the previous position within a chain.
-#[derive(Clone, Copy)]
-pub(crate) enum PrevPos {
-	/// Starting index within the dictionary.  
-    First(u32),
-	/// Regular index within the buckets.
-    Chained(u32),
-	/// Unknown - e.g. the associated entry was retrieved by index instead of chain.
-	Unknown(u64),
-}
-
-pub struct OccupiedEntry<'a, 'b, K, V> {
-	/// Mutable reference to the map containing this entry.
-	pub(crate) map: RwLockWriteGuard<'b, CoreHashMap<'a, K, V>>,
-	/// The key of the occupied entry
-    pub(crate) _key: K,
-	/// The index of the previous entry in the chain.
-    pub(crate) prev_pos: PrevPos,
-	/// The position of the bucket in the [`CoreHashMap`] bucket array.
-    pub(crate) bucket_pos: u32,
-}
-
-impl<K, V> OccupiedEntry<'_, '_, K, V> {
-    pub fn get(&self) -> &V {
-        &self.map.buckets[self.bucket_pos as usize]
-            .inner
-            .as_ref()
-            .unwrap()
-            .1
-    }
-
-    pub fn get_mut(&mut self) -> &mut V {
-        &mut self.map.buckets[self.bucket_pos as usize]
-            .inner
-            .as_mut()
-            .unwrap()
-            .1
-    }
-
-	/// Inserts a value into the entry, replacing (and returning) the existing value.
-    pub fn insert(&mut self, value: V) -> V {
-        let bucket = &mut self.map.buckets[self.bucket_pos as usize];
-        // This assumes inner is Some, which it must be for an OccupiedEntry
-        mem::replace(&mut bucket.inner.as_mut().unwrap().1, value)
-    }
-
-	/// Removes the entry from the hash map, returning the value originally stored within it.
-	///
-	/// This may result in multiple bucket accesses if the entry was obtained by index as the
-	/// previous chain entry needs to be discovered in this case.
-	///
-	/// # Panics
-	/// Panics if the `prev_pos` field is equal to [`PrevPos::Unknown`]. In practice, this means
-	/// the entry was obtained via calling something like [`CoreHashMap::entry_at_bucket`].
-    pub fn remove(mut self) -> V {
-		// If this bucket was queried by index, go ahead and follow its chain from the start.
-		let prev = if let PrevPos::Unknown(hash) = self.prev_pos {
-			let dict_idx = hash as usize % self.map.dictionary.len();
-			let mut prev = PrevPos::First(dict_idx as u32);
-			let mut curr = self.map.dictionary[dict_idx];
-			while curr != self.bucket_pos {
-				curr = self.map.buckets[curr as usize].next;
-				prev = PrevPos::Chained(curr);
-			}
-			prev 	
-		} else {
-			self.prev_pos
-		};
-		
-        // CoreHashMap::remove returns Option<(K, V)>. We know it's Some for an OccupiedEntry.
-        let bucket = &mut self.map.buckets[self.bucket_pos as usize];
-		
-        // unlink it from the chain
-        match prev {
-            PrevPos::First(dict_pos) => {
-				self.map.dictionary[dict_pos as usize] = bucket.next;
-			},
-            PrevPos::Chained(bucket_pos) => {
-				// println!("we think prev of {} is {bucket_pos}", self.bucket_pos);
-                self.map.buckets[bucket_pos as usize].next = bucket.next;
-            },
-			_ => unreachable!(),			
-        }
-
-        // and add it to the freelist
-		let free = self.map.free_head;
-        let bucket = &mut self.map.buckets[self.bucket_pos as usize];
-        let old_value = bucket.inner.take();
-		bucket.next = free;
-        self.map.free_head = self.bucket_pos;
-        self.map.buckets_in_use -= 1;
-
-        old_value.unwrap().1
-    }
-}
-
-/// An abstract view into a vacant entry within the map.
-pub struct VacantEntry<'a, 'b, K, V> {
-	/// Mutable reference to the map containing this entry.
-	pub(crate) map: RwLockWriteGuard<'b, CoreHashMap<'a, K, V>>,
-	/// The key to be inserted into this entry.
-    pub(crate) key: K,
-	/// The position within the dictionary corresponding to the key's hash.
-    pub(crate) dict_pos: u32,
-}
-
-impl<'b, K: Clone + Hash + Eq, V> VacantEntry<'_, 'b, K, V> {
-	/// Insert a value into the vacant entry, finding and populating an empty bucket in the process.
-	///
-	/// # Errors
-	/// Will return [`FullError`] if there are no unoccupied buckets in the map.
-    pub fn insert(mut self, value: V) -> Result<ValueWriteGuard<'b, V>, FullError> {
-        let pos = self.map.alloc_bucket(self.key, value)?;
-        if pos == INVALID_POS {
-            return Err(FullError());
-        }
-        self.map.buckets[pos as usize].next = self.map.dictionary[self.dict_pos as usize];
-        self.map.dictionary[self.dict_pos as usize] = pos;
-
-		Ok(RwLockWriteGuard::map(
-			self.map,
-			|m| &mut m.buckets[pos as usize].inner.as_mut().unwrap().1
-		))
-    }
-}
--- a/libs/neon-shmem/src/hash/tests.rs
+++ b/libs/neon-shmem/src/hash/tests.rs
@@ -1,426 +0,0 @@
-use std::collections::BTreeMap;
-use std::collections::HashSet;
-use std::fmt::Debug;
-use std::mem::MaybeUninit;
-
-use crate::hash::HashMapAccess;
-use crate::hash::HashMapInit;
-use crate::hash::Entry;
-use crate::hash::core::FullError;
-
-use rand::seq::SliceRandom;
-use rand::{Rng, RngCore};
-use rand_distr::Zipf;
-
-const TEST_KEY_LEN: usize = 16;
-
-#[derive(Clone, Copy, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)]
-struct TestKey([u8; TEST_KEY_LEN]);
-
-impl From<&TestKey> for u128 {
-    fn from(val: &TestKey) -> u128 {
-        u128::from_be_bytes(val.0)
-    }
-}
-
-impl From<u128> for TestKey {
-    fn from(val: u128) -> TestKey {
-        TestKey(val.to_be_bytes())
-    }
-}
-
-impl<'a> From<&'a [u8]> for TestKey {
-    fn from(bytes: &'a [u8]) -> TestKey {
-        TestKey(bytes.try_into().unwrap())
-    }
-}
-
-fn test_inserts<K: Into<TestKey> + Copy>(keys: &[K]) {	
-    let w = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		100000, 120000, "test_inserts"
-	).attach_writer();
-
-    for (idx, k) in keys.iter().enumerate() {
-		let res = w.entry((*k).into());
-		match res {
-			Entry::Occupied(mut e) => { e.insert(idx); }
-			Entry::Vacant(e) => {
-				let res = e.insert(idx);
-				assert!(res.is_ok());
-			},
-		};
-    }
-
-    for (idx, k) in keys.iter().enumerate() {
-        let x = w.get(&(*k).into());
-        let value = x.as_deref().copied();
-        assert_eq!(value, Some(idx));
-    }
-}
-
-#[test]
-fn dense() {
-    // This exercises splitting a node with prefix
-    let keys: &[u128] = &[0, 1, 2, 3, 256];
-    test_inserts(keys);
-
-    // Dense keys
-    let mut keys: Vec<u128> = (0..10000).collect();
-    test_inserts(&keys);
-
-    // Do the same in random orders
-    for _ in 1..10 {
-        keys.shuffle(&mut rand::rng());
-        test_inserts(&keys);
-    }
-}
-
-#[test]
-fn sparse() {
-    // sparse keys
-    let mut keys: Vec<TestKey> = Vec::new();
-    let mut used_keys = HashSet::new();
-    for _ in 0..10000 {
-        loop {
-            let key = rand::random::<u128>();
-            if used_keys.get(&key).is_some() {
-                continue;
-            }
-            used_keys.insert(key);
-            keys.push(key.into());
-            break;
-        }
-    }
-    test_inserts(&keys);
-}
-
-#[derive(Clone, Debug)]
-struct TestOp(TestKey, Option<usize>);
-
-fn apply_op(
-    op: &TestOp,
-    map: &mut HashMapAccess<TestKey, usize>,
-    shadow: &mut BTreeMap<TestKey, usize>,
-) {
-    // apply the change to the shadow tree first
-    let shadow_existing = if let Some(v) = op.1 {
-        shadow.insert(op.0, v)
-    } else {
-        shadow.remove(&op.0)
-    };
-
-	let entry = map.entry(op.0);
-    let hash_existing = match op.1 {
-		Some(new) => {
-			match entry {
-				Entry::Occupied(mut e) => Some(e.insert(new)),
-				Entry::Vacant(e) => { _ = e.insert(new).unwrap(); None },
-			}
-		},
-		None => {
-			match entry {
-				Entry::Occupied(e) => Some(e.remove()),
-				Entry::Vacant(_) => None,
-			}
-		},
-	};
-
-	assert_eq!(shadow_existing, hash_existing);
-}
-
-fn do_random_ops(
-	num_ops: usize,
-	size: u32,
-	del_prob: f64,
-	writer: &mut HashMapAccess<TestKey, usize>,
-	shadow: &mut BTreeMap<TestKey, usize>,
-	rng: &mut rand::rngs::ThreadRng,
-) {
-	for i in 0..num_ops {
-        let key: TestKey = ((rng.next_u32() % size) as u128).into();
-        let op = TestOp(key, if rng.random_bool(del_prob) { Some(i) } else { None });
-        apply_op(&op, writer, shadow);
-    }
-}
-
-fn do_deletes(
-	num_ops: usize,
-	writer: &mut HashMapAccess<TestKey, usize>,
-	shadow: &mut BTreeMap<TestKey, usize>,
-) {
-	for _ in 0..num_ops {
-		let (k, _) = shadow.pop_first().unwrap();
-		writer.remove(&k);
-	}
-}
-
-fn do_shrink(
-	writer: &mut HashMapAccess<TestKey, usize>,
-	shadow: &mut BTreeMap<TestKey, usize>,
-	to: u32
-) {
-	assert!(writer.shrink_goal().is_none());
-	writer.begin_shrink(to);
-	assert_eq!(writer.shrink_goal(), Some(to as usize));
-	while writer.get_num_buckets_in_use() > to as usize {
-		let (k, _) = shadow.pop_first().unwrap();
-		let entry = writer.entry(k);
-		if let Entry::Occupied(e) = entry {
-			e.remove();
-		}
-	}
-	let old_usage = writer.get_num_buckets_in_use();
-	writer.finish_shrink().unwrap();
-	assert!(writer.shrink_goal().is_none());
-	assert_eq!(writer.get_num_buckets_in_use(), old_usage);
-}
-
-#[test]
-fn random_ops() {
-	let mut writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		100000, 120000, "test_random"
-	).attach_writer();
-    let mut shadow: std::collections::BTreeMap<TestKey, usize> = BTreeMap::new();
-	
-    let distribution = Zipf::new(u128::MAX as f64, 1.1).unwrap();
-    let mut rng = rand::rng();
-    for i in 0..100000 {
-        let key: TestKey = (rng.sample(distribution) as u128).into();
-
-        let op = TestOp(key, if rng.random_bool(0.75) { Some(i) } else { None });
-
-        apply_op(&op, &mut writer, &mut shadow);
-    }
-}
-
-
-#[test]
-fn test_shuffle() {
-    let mut writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1000, 1200, "test_shuf"
-	).attach_writer();
-    let mut shadow: std::collections::BTreeMap<TestKey, usize> = BTreeMap::new();
-    let mut rng = rand::rng();
-
-    do_random_ops(10000, 1000, 0.75, &mut writer, &mut shadow, &mut rng);
-    writer.shuffle();
-	do_random_ops(10000, 1000, 0.75, &mut writer, &mut shadow, &mut rng);
-}
-
-#[test]
-fn test_grow() {
-    let mut writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1000, 2000, "test_grow"
-	).attach_writer();
-    let mut shadow: std::collections::BTreeMap<TestKey, usize> = BTreeMap::new();
-    let mut rng = rand::rng();
-
-    do_random_ops(10000, 1000, 0.75, &mut writer, &mut shadow, &mut rng);
-	let old_usage = writer.get_num_buckets_in_use();
-    writer.grow(1500).unwrap();
-	assert_eq!(writer.get_num_buckets_in_use(), old_usage);
-	assert_eq!(writer.get_num_buckets(), 1500);
-	do_random_ops(10000, 1500, 0.75, &mut writer, &mut shadow, &mut rng);
-}
-
-#[test]
-fn test_clear() {
-    let mut writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1500, 2000, "test_clear"
-	).attach_writer();
-    let mut shadow: std::collections::BTreeMap<TestKey, usize> = BTreeMap::new();
-    let mut rng = rand::rng();
-    do_random_ops(2000, 1500, 0.75, &mut writer, &mut shadow, &mut rng);
-	writer.clear();
-	assert_eq!(writer.get_num_buckets_in_use(), 0);
-	assert_eq!(writer.get_num_buckets(), 1500);
-	while let Some((key, _)) = shadow.pop_first() {
-		assert!(writer.get(&key).is_none());
-	}
-	do_random_ops(2000, 1500, 0.75, &mut writer, &mut shadow, &mut rng);
-	for i in 0..(1500 - writer.get_num_buckets_in_use()) {
-		writer.insert((1500 + i as u128).into(), 0).unwrap();
-	}
-	assert_eq!(writer.insert(5000.into(), 0), Err(FullError {}));
-	writer.clear();
-	assert!(writer.insert(5000.into(), 0).is_ok());
-}
-
-#[test]
-fn test_idx_remove() {
-	let mut writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1500, 2000, "test_clear"
-	).attach_writer();
-    let mut shadow: std::collections::BTreeMap<TestKey, usize> = BTreeMap::new();
-    let mut rng = rand::rng();
-    do_random_ops(2000, 1500, 0.25, &mut writer, &mut shadow, &mut rng);
-	for _ in 0..100 {
-		let idx = (rng.next_u32() % 1500) as usize;
-		if let Some(e) = writer.entry_at_bucket(idx) {
-			shadow.remove(&e._key);
-			e.remove();
-		}
-		
-	}
-	while let Some((key, val)) = shadow.pop_first() {
-		assert_eq!(*writer.get(&key).unwrap(), val);
-	}
-}
-
-#[test]
-fn test_idx_get() {
-	let mut writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1500, 2000, "test_clear"
-	).attach_writer();
-    let mut shadow: std::collections::BTreeMap<TestKey, usize> = BTreeMap::new();
-    let mut rng = rand::rng();
-    do_random_ops(2000, 1500, 0.25, &mut writer, &mut shadow, &mut rng);
-	for _ in 0..100 {
-		let idx = (rng.next_u32() % 1500) as usize;
-		if let Some(pair) = writer.get_at_bucket(idx) {
-			{ 
-				let v: *const usize = &pair.1;
-				assert_eq!(writer.get_bucket_for_value(v), idx);
-			}
-			{
-				let v: *const usize = &pair.1;
-				assert_eq!(writer.get_bucket_for_value(v), idx);
-			}
-		}
-	}
-}
-
-#[test]
-fn test_shrink() {
-    let mut writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1500, 2000, "test_shrink"
-	).attach_writer();
-    let mut shadow: std::collections::BTreeMap<TestKey, usize> = BTreeMap::new();
-    let mut rng = rand::rng();
-	
-    do_random_ops(10000, 1500, 0.75, &mut writer, &mut shadow, &mut rng);	
-	do_shrink(&mut writer, &mut shadow, 1000);	
-	assert_eq!(writer.get_num_buckets(), 1000);
-	do_deletes(500, &mut writer, &mut shadow);
-	do_random_ops(10000, 500, 0.75, &mut writer, &mut shadow, &mut rng);
-	assert!(writer.get_num_buckets_in_use() <= 1000);
-}
-
-#[test]
-fn test_shrink_grow_seq() {
-    let mut writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1000, 20000, "test_grow_seq"
-	).attach_writer();
-    let mut shadow: std::collections::BTreeMap<TestKey, usize> = BTreeMap::new();
-    let mut rng = rand::rng();
-
-    do_random_ops(500, 1000, 0.1, &mut writer, &mut shadow, &mut rng);
-	eprintln!("Shrinking to 750");
-    do_shrink(&mut writer, &mut shadow, 750);
-	do_random_ops(200, 1000, 0.5, &mut writer, &mut shadow, &mut rng);
-	eprintln!("Growing to 1500");
-	writer.grow(1500).unwrap();
-	do_random_ops(600, 1500, 0.1, &mut writer, &mut shadow, &mut rng);
-	eprintln!("Shrinking to 200");
-	while shadow.len() > 100 {
-		do_deletes(1, &mut writer, &mut shadow);
-	}
-	do_shrink(&mut writer, &mut shadow, 200);
-	do_random_ops(50, 1500, 0.25, &mut writer, &mut shadow, &mut rng);
-	eprintln!("Growing to 10k");
-	writer.grow(10000).unwrap();
-	do_random_ops(10000, 5000, 0.25, &mut writer, &mut shadow, &mut rng);
-}
-
-#[test]
-fn test_bucket_ops() {
-	let writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1000, 1200, "test_bucket_ops"
-	).attach_writer();
-	match writer.entry(1.into()) {
-		Entry::Occupied(mut e) => { e.insert(2); },
-		Entry::Vacant(e) => { _ = e.insert(2).unwrap(); },
-	}
-	assert_eq!(writer.get_num_buckets_in_use(), 1);
-	assert_eq!(writer.get_num_buckets(), 1000);
-	assert_eq!(*writer.get(&1.into()).unwrap(), 2);
-	let pos = match writer.entry(1.into()) {
-		Entry::Occupied(e) => {
-			assert_eq!(e._key, 1.into());
-			let pos = e.bucket_pos as usize;
-			pos
-		},
-		Entry::Vacant(_) => { panic!("Insert didn't affect entry"); },
-	};
-	assert_eq!(writer.entry_at_bucket(pos).unwrap()._key, 1.into());
-	assert_eq!(*writer.get_at_bucket(pos).unwrap(), (1.into(), 2));
-	{
-		let ptr: *const usize = &*writer.get(&1.into()).unwrap();
-		assert_eq!(writer.get_bucket_for_value(ptr), pos);
-	}
-	writer.remove(&1.into());
-	assert!(writer.get(&1.into()).is_none());
-}
-
-#[test]
-fn test_shrink_zero() {
-	let mut writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1500, 2000, "test_shrink_zero"
-	).attach_writer();
-	writer.begin_shrink(0);
-	for i in 0..1500 {
-		writer.entry_at_bucket(i).map(|x| x.remove());
-	}
-	writer.finish_shrink().unwrap();
-	assert_eq!(writer.get_num_buckets_in_use(), 0);
-	let entry = writer.entry(1.into());
-	if let Entry::Vacant(v) = entry {
-		assert!(v.insert(2).is_err());
-	} else {
-		panic!("Somehow got non-vacant entry in empty map.")
-	}
-	writer.grow(50).unwrap();
-	let entry = writer.entry(1.into());
-	if let Entry::Vacant(v) = entry {
-		assert!(v.insert(2).is_ok());
-	} else {
-		panic!("Somehow got non-vacant entry in empty map.")
-	}
-	assert_eq!(writer.get_num_buckets_in_use(), 1);
-}
-
-#[test]
-#[should_panic]
-fn test_grow_oom() {
-    let writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1500, 2000, "test_grow_oom"
-	).attach_writer();
-	writer.grow(20000).unwrap();
-}
-
-#[test]
-#[should_panic]
-fn test_shrink_bigger() {
-    let mut writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1500, 2500, "test_shrink_bigger"
-	).attach_writer();
-	writer.begin_shrink(2000);
-}
-
-#[test]
-#[should_panic]
-fn test_shrink_early_finish() {
-    let writer = HashMapInit::<TestKey, usize>::new_resizeable_named(
-		1500, 2500, "test_shrink_early_finish"
-	).attach_writer();
-	writer.finish_shrink().unwrap();
-}
-
-#[test]
-#[should_panic]
-fn test_shrink_fixed_size() {
-	let mut area = [MaybeUninit::uninit(); 10000];
-    let init_struct = HashMapInit::<TestKey, usize>::with_fixed(3, &mut area);
-    let mut writer = init_struct.attach_writer();
-	writer.begin_shrink(1);
-}
--- a/libs/neon-shmem/src/lib.rs
+++ b/libs/neon-shmem/src/lib.rs
@@ -1,5 +1,418 @@
 //! Shared memory utilities for neon communicator

-pub mod hash;
-pub mod shmem;
-pub mod sync;
+use std::num::NonZeroUsize;
+use std::os::fd::{AsFd, BorrowedFd, OwnedFd};
+use std::ptr::NonNull;
+use std::sync::atomic::{AtomicUsize, Ordering};
+
+use nix::errno::Errno;
+use nix::sys::mman::MapFlags;
+use nix::sys::mman::ProtFlags;
+use nix::sys::mman::mmap as nix_mmap;
+use nix::sys::mman::munmap as nix_munmap;
+use nix::unistd::ftruncate as nix_ftruncate;
+
+/// ShmemHandle represents a shared memory area that can be shared by processes over fork().
+/// Unlike shared memory allocated by Postgres, this area is resizable, up to 'max_size' that's
+/// specified at creation.
+///
+/// The area is backed by an anonymous file created with memfd_create(). The full address space for
+/// 'max_size' is reserved up-front with mmap(), but whenever you call [`ShmemHandle::set_size`],
+/// the underlying file is resized. Do not access the area beyond the current size. Currently, that
+/// will cause the file to be expanded, but we might use mprotect() etc. to enforce that in the
+/// future.
+pub struct ShmemHandle {
+    /// memfd file descriptor
+    fd: OwnedFd,
+
+    max_size: usize,
+
+    // Pointer to the beginning of the shared memory area. The header is stored there.
+    shared_ptr: NonNull<SharedStruct>,
+
+    // Pointer to the beginning of the user data
+    pub data_ptr: NonNull<u8>,
+}
+
+/// This is stored at the beginning in the shared memory area.
+struct SharedStruct {
+    max_size: usize,
+
+    /// Current size of the backing file. The high-order bit is used for the RESIZE_IN_PROGRESS flag
+    current_size: AtomicUsize,
+}
+
+const RESIZE_IN_PROGRESS: usize = 1 << 63;
+
+const HEADER_SIZE: usize = std::mem::size_of::<SharedStruct>();
+
+/// Error type returned by the ShmemHandle functions.
+#[derive(thiserror::Error, Debug)]
+#[error("{msg}: {errno}")]
+pub struct Error {
+    pub msg: String,
+    pub errno: Errno,
+}
+
+impl Error {
+    fn new(msg: &str, errno: Errno) -> Error {
+        Error {
+            msg: msg.to_string(),
+            errno,
+        }
+    }
+}
+
+impl ShmemHandle {
+    /// Create a new shared memory area. To communicate between processes, the processes need to be
+    /// fork()'d after calling this, so that the ShmemHandle is inherited by all processes.
+    ///
+    /// If the ShmemHandle is dropped, the memory is unmapped from the current process. Other
+    /// processes can continue using it, however.
+    pub fn new(name: &str, initial_size: usize, max_size: usize) -> Result<ShmemHandle, Error> {
+        // create the backing anonymous file.
+        let fd = create_backing_file(name)?;
+
+        Self::new_with_fd(fd, initial_size, max_size)
+    }
+
+    fn new_with_fd(
+        fd: OwnedFd,
+        initial_size: usize,
+        max_size: usize,
+    ) -> Result<ShmemHandle, Error> {
+        // We reserve the high-order bit for the RESIZE_IN_PROGRESS flag, and the actual size
+        // is a little larger than this because of the SharedStruct header. Make the upper limit
+        // somewhat smaller than that, because with anything close to that, you'll run out of
+        // memory anyway.
+        if max_size >= 1 << 48 {
+            panic!("max size {} too large", max_size);
+        }
+        if initial_size > max_size {
+            panic!("initial size {initial_size} larger than max size {max_size}");
+        }
+
+        // The actual initial / max size is the one given by the caller, plus the size of
+        // 'SharedStruct'.
+        let initial_size = HEADER_SIZE + initial_size;
+        let max_size = NonZeroUsize::new(HEADER_SIZE + max_size).unwrap();
+
+        // Reserve address space for it with mmap
+        //
+        // TODO: Use MAP_HUGETLB if possible
+        let start_ptr = unsafe {
+            nix_mmap(
+                None,
+                max_size,
+                ProtFlags::PROT_READ | ProtFlags::PROT_WRITE,
+                MapFlags::MAP_SHARED,
+                &fd,
+                0,
+            )
+        }
+        .map_err(|e| Error::new("mmap failed: {e}", e))?;
+
+        // Reserve space for the initial size
+        enlarge_file(fd.as_fd(), initial_size as u64)?;
+
+        // Initialize the header
+        let shared: NonNull<SharedStruct> = start_ptr.cast();
+        unsafe {
+            shared.write(SharedStruct {
+                max_size: max_size.into(),
+                current_size: AtomicUsize::new(initial_size),
+            })
+        };
+
+        // The user data begins after the header
+        let data_ptr = unsafe { start_ptr.cast().add(HEADER_SIZE) };
+
+        Ok(ShmemHandle {
+            fd,
+            max_size: max_size.into(),
+            shared_ptr: shared,
+            data_ptr,
+        })
+    }
+
+    // return reference to the header
+    fn shared(&self) -> &SharedStruct {
+        unsafe { self.shared_ptr.as_ref() }
+    }
+
+    /// Resize the shared memory area. 'new_size' must not be larger than the 'max_size' specified
+    /// when creating the area.
+    ///
+    /// This may only be called from one process/thread concurrently. We detect that case
+    /// and return an Error.
+    pub fn set_size(&self, new_size: usize) -> Result<(), Error> {
+        let new_size = new_size + HEADER_SIZE;
+        let shared = self.shared();
+
+        if new_size > self.max_size {
+            panic!(
+                "new size ({} is greater than max size ({})",
+                new_size, self.max_size
+            );
+        }
+        assert_eq!(self.max_size, shared.max_size);
+
+        // Lock the area by setting the bit in 'current_size'
+        //
+        // Ordering::Relaxed would probably be sufficient here, as we don't access any other memory
+        // and the posix_fallocate/ftruncate call is surely a synchronization point anyway. But
+        // since this is not performance-critical, better safe than sorry .
+        let mut old_size = shared.current_size.load(Ordering::Acquire);
+        loop {
+            if (old_size & RESIZE_IN_PROGRESS) != 0 {
+                return Err(Error::new(
+                    "concurrent resize detected",
+                    Errno::UnknownErrno,
+                ));
+            }
+            match shared.current_size.compare_exchange(
+                old_size,
+                new_size,
+                Ordering::Acquire,
+                Ordering::Relaxed,
+            ) {
+                Ok(_) => break,
+                Err(x) => old_size = x,
+            }
+        }
+
+        // Ok, we got the lock.
+        //
+        // NB: If anything goes wrong, we *must* clear the bit!
+        let result = {
+            use std::cmp::Ordering::{Equal, Greater, Less};
+            match new_size.cmp(&old_size) {
+                Less => nix_ftruncate(&self.fd, new_size as i64).map_err(|e| {
+                    Error::new("could not shrink shmem segment, ftruncate failed: {e}", e)
+                }),
+                Equal => Ok(()),
+                Greater => enlarge_file(self.fd.as_fd(), new_size as u64),
+            }
+        };
+
+        // Unlock
+        shared.current_size.store(
+            if result.is_ok() { new_size } else { old_size },
+            Ordering::Release,
+        );
+
+        result
+    }
+
+    /// Returns the current user-visible size of the shared memory segment.
+    ///
+    /// NOTE: a concurrent set_size() call can change the size at any time. It is the caller's
+    /// responsibility not to access the area beyond the current size.
+    pub fn current_size(&self) -> usize {
+        let total_current_size =
+            self.shared().current_size.load(Ordering::Relaxed) & !RESIZE_IN_PROGRESS;
+        total_current_size - HEADER_SIZE
+    }
+}
+
+impl Drop for ShmemHandle {
+    fn drop(&mut self) {
+        // SAFETY: The pointer was obtained from mmap() with the given size.
+        // We unmap the entire region.
+        let _ = unsafe { nix_munmap(self.shared_ptr.cast(), self.max_size) };
+        // The fd is dropped automatically by OwnedFd.
+    }
+}
+
+/// Create a "backing file" for the shared memory area. On Linux, use memfd_create(), to create an
+/// anonymous in-memory file. One macos, fall back to a regular file. That's good enough for
+/// development and testing, but in production we want the file to stay in memory.
+///
+/// disable 'unused_variables' warnings, because in the macos path, 'name' is unused.
+#[allow(unused_variables)]
+fn create_backing_file(name: &str) -> Result<OwnedFd, Error> {
+    #[cfg(not(target_os = "macos"))]
+    {
+        nix::sys::memfd::memfd_create(name, nix::sys::memfd::MFdFlags::empty())
+            .map_err(|e| Error::new("memfd_create failed: {e}", e))
+    }
+    #[cfg(target_os = "macos")]
+    {
+        let file = tempfile::tempfile().map_err(|e| {
+            Error::new(
+                "could not create temporary file to back shmem area: {e}",
+                nix::errno::Errno::from_raw(e.raw_os_error().unwrap_or(0)),
+            )
+        })?;
+        Ok(OwnedFd::from(file))
+    }
+}
+
+fn enlarge_file(fd: BorrowedFd, size: u64) -> Result<(), Error> {
+    // Use posix_fallocate() to enlarge the file. It reserves the space correctly, so that
+    // we don't get a segfault later when trying to actually use it.
+    #[cfg(not(target_os = "macos"))]
+    {
+        nix::fcntl::posix_fallocate(fd, 0, size as i64).map_err(|e| {
+            Error::new(
+                "could not grow shmem segment, posix_fallocate failed: {e}",
+                e,
+            )
+        })
+    }
+    // As a fallback on macos, which doesn't have posix_fallocate, use plain 'fallocate'
+    #[cfg(target_os = "macos")]
+    {
+        nix::unistd::ftruncate(fd, size as i64)
+            .map_err(|e| Error::new("could not grow shmem segment, ftruncate failed: {e}", e))
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    use nix::unistd::ForkResult;
+    use std::ops::Range;
+
+    /// check that all bytes in given range have the expected value.
+    fn assert_range(ptr: *const u8, expected: u8, range: Range<usize>) {
+        for i in range {
+            let b = unsafe { *(ptr.add(i)) };
+            assert_eq!(expected, b, "unexpected byte at offset {}", i);
+        }
+    }
+
+    /// Write 'b' to all bytes in the given range
+    fn write_range(ptr: *mut u8, b: u8, range: Range<usize>) {
+        unsafe { std::ptr::write_bytes(ptr.add(range.start), b, range.end - range.start) };
+    }
+
+    // simple single-process test of growing and shrinking
+    #[test]
+    fn test_shmem_resize() -> Result<(), Error> {
+        let max_size = 1024 * 1024;
+        let init_struct = ShmemHandle::new("test_shmem_resize", 0, max_size)?;
+
+        assert_eq!(init_struct.current_size(), 0);
+
+        // Initial grow
+        let size1 = 10000;
+        init_struct.set_size(size1).unwrap();
+        assert_eq!(init_struct.current_size(), size1);
+
+        // Write some data
+        let data_ptr = init_struct.data_ptr.as_ptr();
+        write_range(data_ptr, 0xAA, 0..size1);
+        assert_range(data_ptr, 0xAA, 0..size1);
+
+        // Shrink
+        let size2 = 5000;
+        init_struct.set_size(size2).unwrap();
+        assert_eq!(init_struct.current_size(), size2);
+
+        // Grow again
+        let size3 = 20000;
+        init_struct.set_size(size3).unwrap();
+        assert_eq!(init_struct.current_size(), size3);
+
+        // Try to read it. The area that was shrunk and grown again should read as all zeros now
+        assert_range(data_ptr, 0xAA, 0..5000);
+        assert_range(data_ptr, 0, 5000..size1);
+
+        // Try to grow beyond max_size
+        //let size4 = max_size + 1;
+        //assert!(init_struct.set_size(size4).is_err());
+
+        // Dropping init_struct should unmap the memory
+        drop(init_struct);
+
+        Ok(())
+    }
+
+    /// This is used in tests to coordinate between test processes. It's like std::sync::Barrier,
+    /// but is stored in the shared memory area and works across processes. It's implemented by
+    /// polling, because e.g. standard rust mutexes are not guaranteed to work across processes.
+    struct SimpleBarrier {
+        num_procs: usize,
+        count: AtomicUsize,
+    }
+
+    impl SimpleBarrier {
+        unsafe fn init(ptr: *mut SimpleBarrier, num_procs: usize) {
+            unsafe {
+                *ptr = SimpleBarrier {
+                    num_procs,
+                    count: AtomicUsize::new(0),
+                }
+            }
+        }
+
+        pub fn wait(&self) {
+            let old = self.count.fetch_add(1, Ordering::Relaxed);
+
+            let generation = old / self.num_procs;
+
+            let mut current = old + 1;
+            while current < (generation + 1) * self.num_procs {
+                std::thread::sleep(std::time::Duration::from_millis(10));
+                current = self.count.load(Ordering::Relaxed);
+            }
+        }
+    }
+
+    #[test]
+    fn test_multi_process() {
+        // Initialize
+        let max_size = 1_000_000_000_000;
+        let init_struct = ShmemHandle::new("test_multi_process", 0, max_size).unwrap();
+        let ptr = init_struct.data_ptr.as_ptr();
+
+        // Store the SimpleBarrier in the first 1k of the area.
+        init_struct.set_size(10000).unwrap();
+        let barrier_ptr: *mut SimpleBarrier = unsafe {
+            ptr.add(ptr.align_offset(std::mem::align_of::<SimpleBarrier>()))
+                .cast()
+        };
+        unsafe { SimpleBarrier::init(barrier_ptr, 2) };
+        let barrier = unsafe { barrier_ptr.as_ref().unwrap() };
+
+        // Fork another test process. The code after this runs in both processes concurrently.
+        let fork_result = unsafe { nix::unistd::fork().unwrap() };
+
+        // In the parent, fill bytes between 1000..2000. In the child, between 2000..3000
+        if fork_result.is_parent() {
+            write_range(ptr, 0xAA, 1000..2000);
+        } else {
+            write_range(ptr, 0xBB, 2000..3000);
+        }
+        barrier.wait();
+        // Verify the contents. (in both processes)
+        assert_range(ptr, 0xAA, 1000..2000);
+        assert_range(ptr, 0xBB, 2000..3000);
+
+        // Grow, from the child this time
+        let size = 10_000_000;
+        if !fork_result.is_parent() {
+            init_struct.set_size(size).unwrap();
+        }
+        barrier.wait();
+
+        // make some writes at the end
+        if fork_result.is_parent() {
+            write_range(ptr, 0xAA, (size - 10)..size);
+        } else {
+            write_range(ptr, 0xBB, (size - 20)..(size - 10));
+        }
+        barrier.wait();
+
+        // Verify the contents. (This runs in both processes)
+        assert_range(ptr, 0, (size - 1000)..(size - 20));
+        assert_range(ptr, 0xBB, (size - 20)..(size - 10));
+        assert_range(ptr, 0xAA, (size - 10)..size);
+
+        if let ForkResult::Parent { child } = fork_result {
+            nix::sys::wait::waitpid(child, None).unwrap();
+        }
+    }
+}
--- a/libs/neon-shmem/src/shmem.rs
+++ b/libs/neon-shmem/src/shmem.rs
@@ -1,418 +0,0 @@
-//! Dynamically resizable contiguous chunk of shared memory
-
-use std::num::NonZeroUsize;
-use std::os::fd::{AsFd, BorrowedFd, OwnedFd};
-use std::ptr::NonNull;
-use std::sync::atomic::{AtomicUsize, Ordering};
-
-use nix::errno::Errno;
-use nix::sys::mman::MapFlags;
-use nix::sys::mman::ProtFlags;
-use nix::sys::mman::mmap as nix_mmap;
-use nix::sys::mman::munmap as nix_munmap;
-use nix::unistd::ftruncate as nix_ftruncate;
-
-/// `ShmemHandle` represents a shared memory area that can be shared by processes over `fork()`.
-/// Unlike shared memory allocated by Postgres, this area is resizable, up to `max_size` that's
-/// specified at creation.
-///
-/// The area is backed by an anonymous file created with `memfd_create()`. The full address space for
-/// `max_size` is reserved up-front with `mmap()`, but whenever you call [`ShmemHandle::set_size`],
-/// the underlying file is resized. Do not access the area beyond the current size. Currently, that
-/// will cause the file to be expanded, but we might use `mprotect()` etc. to enforce that in the
-/// future.
-pub struct ShmemHandle {
-    /// memfd file descriptor
-    fd: OwnedFd,
-
-    max_size: usize,
-
-    // Pointer to the beginning of the shared memory area. The header is stored there.
-    shared_ptr: NonNull<SharedStruct>,
-
-    // Pointer to the beginning of the user data
-    pub data_ptr: NonNull<u8>,
-}
-
-/// This is stored at the beginning in the shared memory area.
-struct SharedStruct {
-    max_size: usize,
-
-    /// Current size of the backing file. The high-order bit is used for the [`RESIZE_IN_PROGRESS`] flag.
-    current_size: AtomicUsize,
-}
-
-const RESIZE_IN_PROGRESS: usize = 1 << 63;
-
-const HEADER_SIZE: usize = std::mem::size_of::<SharedStruct>();
-
-/// Error type returned by the [`ShmemHandle`] functions.
-#[derive(thiserror::Error, Debug)]
-#[error("{msg}: {errno}")]
-pub struct Error {
-    pub msg: String,
-    pub errno: Errno,
-}
-
-impl Error {
-    fn new(msg: &str, errno: Errno) -> Self {
-        Self {
-            msg: msg.to_string(),
-            errno,
-        }
-    }
-}
-
-impl ShmemHandle {
-    /// Create a new shared memory area. To communicate between processes, the processes need to be
-    /// `fork()`'d after calling this, so that the `ShmemHandle` is inherited by all processes.
-    ///
-    /// If the `ShmemHandle` is dropped, the memory is unmapped from the current process. Other
-    /// processes can continue using it, however.
-    pub fn new(name: &str, initial_size: usize, max_size: usize) -> Result<Self, Error> {
-        // create the backing anonymous file.
-        let fd = create_backing_file(name)?;
-
-        Self::new_with_fd(fd, initial_size, max_size)
-    }
-
-    fn new_with_fd(
-        fd: OwnedFd,
-        initial_size: usize,
-        max_size: usize,
-    ) -> Result<Self, Error> {
-        // We reserve the high-order bit for the `RESIZE_IN_PROGRESS` flag, and the actual size
-        // is a little larger than this because of the SharedStruct header. Make the upper limit
-        // somewhat smaller than that, because with anything close to that, you'll run out of
-        // memory anyway.
-        assert!(max_size < 1 << 48, "max size {max_size} too large");
-        
-        assert!(
-			initial_size <= max_size,
-            "initial size {initial_size} larger than max size {max_size}"
-        );
-
-        // The actual initial / max size is the one given by the caller, plus the size of
-        // 'SharedStruct'.
-        let initial_size = HEADER_SIZE + initial_size;
-        let max_size = NonZeroUsize::new(HEADER_SIZE + max_size).unwrap();
-
-        // Reserve address space for it with mmap
-        //
-        // TODO: Use MAP_HUGETLB if possible
-        let start_ptr = unsafe {
-            nix_mmap(
-                None,
-                max_size,
-                ProtFlags::PROT_READ | ProtFlags::PROT_WRITE,
-                MapFlags::MAP_SHARED,
-                &fd,
-                0,
-            )
-        }
-        .map_err(|e| Error::new("mmap failed", e))?;
-
-        // Reserve space for the initial size
-        enlarge_file(fd.as_fd(), initial_size as u64)?;
-
-        // Initialize the header
-        let shared: NonNull<SharedStruct> = start_ptr.cast();
-        unsafe {
-            shared.write(SharedStruct {
-                max_size: max_size.into(),
-                current_size: AtomicUsize::new(initial_size),
-            });
-        }
-
-        // The user data begins after the header
-        let data_ptr = unsafe { start_ptr.cast().add(HEADER_SIZE) };
-
-        Ok(Self {
-            fd,
-            max_size: max_size.into(),
-            shared_ptr: shared,
-            data_ptr,
-        })
-    }
-
-    // return reference to the header
-    fn shared(&self) -> &SharedStruct {
-        unsafe { self.shared_ptr.as_ref() }
-    }
-
-    /// Resize the shared memory area. `new_size` must not be larger than the `max_size` specified
-    /// when creating the area.
-    ///
-    /// This may only be called from one process/thread concurrently. We detect that case
-    /// and return an [`shmem::Error`](Error).
-    pub fn set_size(&self, new_size: usize) -> Result<(), Error> {
-        let new_size = new_size + HEADER_SIZE;
-        let shared = self.shared();
-
-        assert!(
-			new_size <= self.max_size,
-            "new size ({new_size}) is greater than max size ({})",
-			self.max_size
-        );
-
-		assert_eq!(self.max_size, shared.max_size);
-
-        // Lock the area by setting the bit in `current_size`
-        //
-        // Ordering::Relaxed would probably be sufficient here, as we don't access any other memory
-        // and the `posix_fallocate`/`ftruncate` call is surely a synchronization point anyway. But
-        // since this is not performance-critical, better safe than sorry.
-        let mut old_size = shared.current_size.load(Ordering::Acquire);
-        loop {
-            if (old_size & RESIZE_IN_PROGRESS) != 0 {
-                return Err(Error::new(
-                    "concurrent resize detected",
-                    Errno::UnknownErrno,
-                ));
-            }
-            match shared.current_size.compare_exchange(
-                old_size,
-                new_size,
-                Ordering::Acquire,
-                Ordering::Relaxed,
-            ) {
-                Ok(_) => break,
-                Err(x) => old_size = x,
-            }
-        }
-
-        // Ok, we got the lock.
-        //
-        // NB: If anything goes wrong, we *must* clear the bit!
-        let result = {
-            use std::cmp::Ordering::{Equal, Greater, Less};
-            match new_size.cmp(&old_size) {
-                Less => nix_ftruncate(&self.fd, new_size as i64).map_err(|e| {
-                    Error::new("could not shrink shmem segment, ftruncate failed", e)
-                }),
-                Equal => Ok(()),
-                Greater => enlarge_file(self.fd.as_fd(), new_size as u64),
-            }
-        };
-
-        // Unlock
-        shared.current_size.store(
-            if result.is_ok() { new_size } else { old_size },
-            Ordering::Release,
-        );
-
-        result
-    }
-
-    /// Returns the current user-visible size of the shared memory segment.
-    ///
-    /// NOTE: a concurrent [`ShmemHandle::set_size()`] call can change the size at any time.
-	/// It is the caller's responsibility not to access the area beyond the current size.
-    pub fn current_size(&self) -> usize {
-        let total_current_size =
-            self.shared().current_size.load(Ordering::Relaxed) & !RESIZE_IN_PROGRESS;
-        total_current_size - HEADER_SIZE
-    }
-}
-
-impl Drop for ShmemHandle {
-    fn drop(&mut self) {
-        // SAFETY: The pointer was obtained from mmap() with the given size.
-        // We unmap the entire region.
-        let _ = unsafe { nix_munmap(self.shared_ptr.cast(), self.max_size) };
-        // The fd is dropped automatically by OwnedFd.
-    }
-}
-
-/// Create a "backing file" for the shared memory area. On Linux, use `memfd_create()`, to create an
-/// anonymous in-memory file. One macos, fall back to a regular file. That's good enough for
-/// development and testing, but in production we want the file to stay in memory.
-///
-/// Disable unused variables warnings because `name` is unused in the macos path.
-#[allow(unused_variables)]
-fn create_backing_file(name: &str) -> Result<OwnedFd, Error> {
-    #[cfg(not(target_os = "macos"))]
-    {
-        nix::sys::memfd::memfd_create(name, nix::sys::memfd::MFdFlags::empty())
-            .map_err(|e| Error::new("memfd_create failed", e))
-    }
-    #[cfg(target_os = "macos")]
-    {
-        let file = tempfile::tempfile().map_err(|e| {
-            Error::new(
-                "could not create temporary file to back shmem area",
-                nix::errno::Errno::from_raw(e.raw_os_error().unwrap_or(0)),
-            )
-        })?;
-        Ok(OwnedFd::from(file))
-    }
-}
-
-fn enlarge_file(fd: BorrowedFd, size: u64) -> Result<(), Error> {
-    // Use posix_fallocate() to enlarge the file. It reserves the space correctly, so that
-    // we don't get a segfault later when trying to actually use it.
-    #[cfg(not(target_os = "macos"))]
-    {
-        nix::fcntl::posix_fallocate(fd, 0, size as i64).map_err(|e| {
-            Error::new(
-                "could not grow shmem segment, posix_fallocate failed",
-                e,
-            )
-        })
-    }
-    // As a fallback on macos, which doesn't have posix_fallocate, use plain 'fallocate'
-    #[cfg(target_os = "macos")]
-    {
-        nix::unistd::ftruncate(fd, size as i64)
-            .map_err(|e| Error::new("could not grow shmem segment, ftruncate failed", e))
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    use nix::unistd::ForkResult;
-    use std::ops::Range;
-
-    /// check that all bytes in given range have the expected value.
-    fn assert_range(ptr: *const u8, expected: u8, range: Range<usize>) {
-        for i in range {
-            let b = unsafe { *(ptr.add(i)) };
-            assert_eq!(expected, b, "unexpected byte at offset {}", i);
-        }
-    }
-
-    /// Write 'b' to all bytes in the given range
-    fn write_range(ptr: *mut u8, b: u8, range: Range<usize>) {
-        unsafe { std::ptr::write_bytes(ptr.add(range.start), b, range.end - range.start) };
-    }
-
-    // simple single-process test of growing and shrinking
-    #[test]
-    fn test_shmem_resize() -> Result<(), Error> {
-        let max_size = 1024 * 1024;
-        let init_struct = ShmemHandle::new("test_shmem_resize", 0, max_size)?;
-
-        assert_eq!(init_struct.current_size(), 0);
-
-        // Initial grow
-        let size1 = 10000;
-        init_struct.set_size(size1).unwrap();
-        assert_eq!(init_struct.current_size(), size1);
-
-        // Write some data
-        let data_ptr = init_struct.data_ptr.as_ptr();
-        write_range(data_ptr, 0xAA, 0..size1);
-        assert_range(data_ptr, 0xAA, 0..size1);
-
-        // Shrink
-        let size2 = 5000;
-        init_struct.set_size(size2).unwrap();
-        assert_eq!(init_struct.current_size(), size2);
-
-        // Grow again
-        let size3 = 20000;
-        init_struct.set_size(size3).unwrap();
-        assert_eq!(init_struct.current_size(), size3);
-
-        // Try to read it. The area that was shrunk and grown again should read as all zeros now
-        assert_range(data_ptr, 0xAA, 0..5000);
-        assert_range(data_ptr, 0, 5000..size1);
-
-        // Try to grow beyond max_size
-        //let size4 = max_size + 1;
-        //assert!(init_struct.set_size(size4).is_err());
-
-        // Dropping init_struct should unmap the memory
-        drop(init_struct);
-
-        Ok(())
-    }
-
-    /// This is used in tests to coordinate between test processes. It's like `std::sync::Barrier`,
-    /// but is stored in the shared memory area and works across processes. It's implemented by
-    /// polling, because e.g. standard rust mutexes are not guaranteed to work across processes.
-    struct SimpleBarrier {
-        num_procs: usize,
-        count: AtomicUsize,
-    }
-
-    impl SimpleBarrier {
-        unsafe fn init(ptr: *mut SimpleBarrier, num_procs: usize) {
-            unsafe {
-                *ptr = SimpleBarrier {
-                    num_procs,
-                    count: AtomicUsize::new(0),
-                }
-            }
-        }
-
-        pub fn wait(&self) {
-            let old = self.count.fetch_add(1, Ordering::Relaxed);
-
-            let generation = old / self.num_procs;
-
-            let mut current = old + 1;
-            while current < (generation + 1) * self.num_procs {
-                std::thread::sleep(std::time::Duration::from_millis(10));
-                current = self.count.load(Ordering::Relaxed);
-            }
-        }
-    }
-
-    #[test]
-    fn test_multi_process() {
-        // Initialize
-        let max_size = 1_000_000_000_000;
-        let init_struct = ShmemHandle::new("test_multi_process", 0, max_size).unwrap();
-        let ptr = init_struct.data_ptr.as_ptr();
-
-        // Store the SimpleBarrier in the first 1k of the area.
-        init_struct.set_size(10000).unwrap();
-        let barrier_ptr: *mut SimpleBarrier = unsafe {
-            ptr.add(ptr.align_offset(std::mem::align_of::<SimpleBarrier>()))
-                .cast()
-        };
-        unsafe { SimpleBarrier::init(barrier_ptr, 2) };
-        let barrier = unsafe { barrier_ptr.as_ref().unwrap() };
-
-        // Fork another test process. The code after this runs in both processes concurrently.
-        let fork_result = unsafe { nix::unistd::fork().unwrap() };
-
-        // In the parent, fill bytes between 1000..2000. In the child, between 2000..3000
-        if fork_result.is_parent() {
-            write_range(ptr, 0xAA, 1000..2000);
-        } else {
-            write_range(ptr, 0xBB, 2000..3000);
-        }
-        barrier.wait();
-        // Verify the contents. (in both processes)
-        assert_range(ptr, 0xAA, 1000..2000);
-        assert_range(ptr, 0xBB, 2000..3000);
-
-        // Grow, from the child this time
-        let size = 10_000_000;
-        if !fork_result.is_parent() {
-            init_struct.set_size(size).unwrap();
-        }
-        barrier.wait();
-
-        // make some writes at the end
-        if fork_result.is_parent() {
-            write_range(ptr, 0xAA, (size - 10)..size);
-        } else {
-            write_range(ptr, 0xBB, (size - 20)..(size - 10));
-        }
-        barrier.wait();
-
-        // Verify the contents. (This runs in both processes)
-        assert_range(ptr, 0, (size - 1000)..(size - 20));
-        assert_range(ptr, 0xBB, (size - 20)..(size - 10));
-        assert_range(ptr, 0xAA, (size - 10)..size);
-
-        if let ForkResult::Parent { child } = fork_result {
-            nix::sys::wait::waitpid(child, None).unwrap();
-        }
-    }
-}
--- a/libs/neon-shmem/src/sync.rs
+++ b/libs/neon-shmem/src/sync.rs
@@ -1,105 +0,0 @@
-//! Simple utilities akin to what's in [`std::sync`] but designed to work with shared memory.
-
-use std::mem::MaybeUninit;
-use std::ptr::NonNull;
-
-use nix::errno::Errno;
-
-pub type RwLock<T> = lock_api::RwLock<PthreadRwLock, T>;
-pub(crate) type RwLockReadGuard<'a, T> = lock_api::RwLockReadGuard<'a, PthreadRwLock, T>;
-pub type RwLockWriteGuard<'a, T> = lock_api::RwLockWriteGuard<'a, PthreadRwLock, T>;
-pub type ValueReadGuard<'a, T> = lock_api::MappedRwLockReadGuard<'a, PthreadRwLock, T>;
-pub type ValueWriteGuard<'a, T> = lock_api::MappedRwLockWriteGuard<'a, PthreadRwLock, T>;
-
-/// Shared memory read-write lock.
-pub struct PthreadRwLock(Option<NonNull<libc::pthread_rwlock_t>>);
-
-impl PthreadRwLock {
-	pub fn new(lock: *mut libc::pthread_rwlock_t) -> Self {
-		unsafe {
-			let mut attrs = MaybeUninit::uninit();
-			// Ignoring return value here - only possible error is OOM.
-			libc::pthread_rwlockattr_init(attrs.as_mut_ptr());
-			libc::pthread_rwlockattr_setpshared(
-				attrs.as_mut_ptr(),
-				libc::PTHREAD_PROCESS_SHARED
-			);
-			// TODO(quantumish): worth making this function return Result?
-			libc::pthread_rwlock_init(lock, attrs.as_mut_ptr());
-			// Safety: POSIX specifies that "any function affecting the attributes
-			// object (including destruction) shall not affect any previously
-			// initialized read-write locks". 
-			libc::pthread_rwlockattr_destroy(attrs.as_mut_ptr());
-			Self(Some(NonNull::new_unchecked(lock)))
-		}
-	}
-	
-	fn inner(&self) -> NonNull<libc::pthread_rwlock_t> {
-		match self.0 {
-			None => panic!("PthreadRwLock constructed badly - something likely used RawMutex::INIT"),
-			Some(x) => x,
-		}
-	}
-}
-
-unsafe impl lock_api::RawRwLock for PthreadRwLock {
-	type GuardMarker = lock_api::GuardSend;
-	const INIT: Self = Self(None);	
-	
-	fn lock_shared(&self) {
-		unsafe {
-			let res = libc::pthread_rwlock_rdlock(self.inner().as_ptr());
-			if res != 0 {
-				panic!("rdlock failed with {}", Errno::from_raw(res));
-			}
-		}
-	}
-
-	fn try_lock_shared(&self) -> bool {
-		unsafe {
-			let res = libc::pthread_rwlock_tryrdlock(self.inner().as_ptr());
-			match res {
-				0 => true,
-				libc::EAGAIN => false,
-				o => panic!("try_rdlock failed with {}", Errno::from_raw(res)),
-			}
-		}
-	}
-
-	fn lock_exclusive(&self) {
-		unsafe {
-			let res = libc::pthread_rwlock_wrlock(self.inner().as_ptr());
-			if res != 0 {
-				panic!("wrlock failed with {}", Errno::from_raw(res));
-			}
-		}
-	}
-
-	fn try_lock_exclusive(&self) -> bool {
-		unsafe {
-			let res = libc::pthread_rwlock_trywrlock(self.inner().as_ptr());
-			match res {
-				0 => true,
-				libc::EAGAIN => false,
-				o => panic!("try_wrlock failed with {}", Errno::from_raw(res)),
-			}
-		}
-	}
-
-	unsafe fn unlock_exclusive(&self) {
-		unsafe { 
-			let res = libc::pthread_rwlock_unlock(self.inner().as_ptr());
-			if res != 0 {
-				panic!("unlock failed with {}", Errno::from_raw(res));
-			}
-		}
-	}
-	unsafe fn unlock_shared(&self) {
-		unsafe {
-			let res = libc::pthread_rwlock_unlock(self.inner().as_ptr());
-			if res != 0 {
-				panic!("unlock failed with {}", Errno::from_raw(res));
-			}
-		}
-	}
-}
--- a/libs/neonart/Cargo.toml
+++ b/libs/neonart/Cargo.toml
@@ -1,14 +0,0 @@
-[package]
-name = "neonart"
-version = "0.1.0"
-edition.workspace = true
-license.workspace = true
-
-[dependencies]
-crossbeam-utils.workspace = true
-spin.workspace = true
-tracing.workspace = true
-
-[dev-dependencies]
-rand = "0.9.1"
-rand_distr = "0.5.1"
--- a/libs/neonart/src/algorithm.rs
+++ b/libs/neonart/src/algorithm.rs
@@ -1,594 +0,0 @@
-mod lock_and_version;
-pub(crate) mod node_ptr;
-mod node_ref;
-
-use std::vec::Vec;
-
-use crate::algorithm::lock_and_version::ConcurrentUpdateError;
-use crate::algorithm::node_ptr::MAX_PREFIX_LEN;
-use crate::algorithm::node_ref::{NewNodeRef, NodeRef, ReadLockedNodeRef, WriteLockedNodeRef};
-use crate::allocator::OutOfMemoryError;
-
-use crate::TreeWriteGuard;
-use crate::UpdateAction;
-use crate::allocator::ArtAllocator;
-use crate::epoch::EpochPin;
-use crate::{Key, Value};
-
-pub(crate) type RootPtr<V> = node_ptr::NodePtr<V>;
-
-#[derive(Debug)]
-pub enum ArtError {
-    ConcurrentUpdate, // need to retry
-    OutOfMemory,
-}
-
-impl From<ConcurrentUpdateError> for ArtError {
-    fn from(_: ConcurrentUpdateError) -> ArtError {
-        ArtError::ConcurrentUpdate
-    }
-}
-
-impl From<OutOfMemoryError> for ArtError {
-    fn from(_: OutOfMemoryError) -> ArtError {
-        ArtError::OutOfMemory
-    }
-}
-
-pub fn new_root<V: Value>(
-    allocator: &impl ArtAllocator<V>,
-) -> Result<RootPtr<V>, OutOfMemoryError> {
-    node_ptr::new_root(allocator)
-}
-
-pub(crate) fn search<'e, K: Key, V: Value>(
-    key: &K,
-    root: RootPtr<V>,
-    epoch_pin: &'e EpochPin,
-) -> Option<&'e V> {
-    loop {
-        let root_ref = NodeRef::from_root_ptr(root);
-        if let Ok(result) = lookup_recurse(key.as_bytes(), root_ref, None, epoch_pin) {
-            break result;
-        }
-        // retry
-    }
-}
-
-pub(crate) fn iter_next<'e, V: Value>(
-    key: &[u8],
-    root: RootPtr<V>,
-    epoch_pin: &'e EpochPin,
-) -> Option<(Vec<u8>, &'e V)> {
-    loop {
-        let mut path = Vec::new();
-        let root_ref = NodeRef::from_root_ptr(root);
-
-        match next_recurse(key, &mut path, root_ref, epoch_pin) {
-            Ok(Some(v)) => {
-                assert_eq!(path.len(), key.len());
-                break Some((path, v));
-            }
-            Ok(None) => break None,
-            Err(ConcurrentUpdateError()) => {
-                // retry
-                continue;
-            }
-        }
-    }
-}
-
-pub(crate) fn update_fn<'e, 'g, K: Key, V: Value, A: ArtAllocator<V>, F>(
-    key: &K,
-    value_fn: F,
-    root: RootPtr<V>,
-    guard: &'g mut TreeWriteGuard<'e, K, V, A>,
-) -> Result<(), OutOfMemoryError>
-where
-    F: FnOnce(Option<&V>) -> UpdateAction<V>,
-{
-    let value_fn_cell = std::cell::Cell::new(Some(value_fn));
-    loop {
-        let root_ref = NodeRef::from_root_ptr(root);
-        let this_value_fn = |arg: Option<&V>| value_fn_cell.take().unwrap()(arg);
-        let key_bytes = key.as_bytes();
-
-        match update_recurse(
-            key_bytes,
-            this_value_fn,
-            root_ref,
-            None,
-            None,
-            guard,
-            0,
-            key_bytes,
-        ) {
-            Ok(()) => break Ok(()),
-            Err(ArtError::ConcurrentUpdate) => {
-                continue; // retry
-            }
-            Err(ArtError::OutOfMemory) => break Err(OutOfMemoryError()),
-        }
-    }
-}
-
-// Error means you must retry.
-//
-// This corresponds to the 'lookupOpt' function in the paper
-fn lookup_recurse<'e, V: Value>(
-    key: &[u8],
-    node: NodeRef<'e, V>,
-    parent: Option<ReadLockedNodeRef<V>>,
-    epoch_pin: &'e EpochPin,
-) -> Result<Option<&'e V>, ConcurrentUpdateError> {
-    let rnode = node.read_lock_or_restart()?;
-    if let Some(parent) = parent {
-        parent.read_unlock_or_restart()?;
-    }
-
-    // check if the prefix matches, may increment level
-    let prefix_len = if let Some(prefix_len) = rnode.prefix_matches(key) {
-        prefix_len
-    } else {
-        rnode.read_unlock_or_restart()?;
-        return Ok(None);
-    };
-
-    if rnode.is_leaf() {
-        assert_eq!(key.len(), prefix_len);
-        let vptr = rnode.get_leaf_value_ptr()?;
-        // safety: It's OK to return a ref of the pointer because we checked the version
-        // and the lifetime of 'epoch_pin' enforces that the reference is only accessible
-        // as long as the epoch is pinned.
-        let v = unsafe { vptr.as_ref().unwrap() };
-        return Ok(Some(v));
-    }
-
-    let key = &key[prefix_len..];
-
-    // find child (or leaf value)
-    let next_node = rnode.find_child_or_restart(key[0])?;
-
-    match next_node {
-        None => Ok(None), // key not found
-        Some(child) => lookup_recurse(&key[1..], child, Some(rnode), epoch_pin),
-    }
-}
-
-fn next_recurse<'e, V: Value>(
-    min_key: &[u8],
-    path: &mut Vec<u8>,
-    node: NodeRef<'e, V>,
-    epoch_pin: &'e EpochPin,
-) -> Result<Option<&'e V>, ConcurrentUpdateError> {
-    let rnode = node.read_lock_or_restart()?;
-    let prefix = rnode.get_prefix();
-    if prefix.len() != 0 {
-        path.extend_from_slice(prefix);
-    }
-
-    use std::cmp::Ordering;
-    let comparison = path.as_slice().cmp(&min_key[0..path.len()]);
-    if comparison == Ordering::Less {
-        rnode.read_unlock_or_restart()?;
-        return Ok(None);
-    }
-
-    if rnode.is_leaf() {
-        assert_eq!(path.len(), min_key.len());
-        let vptr = rnode.get_leaf_value_ptr()?;
-        // safety: It's OK to return a ref of the pointer because we checked the version
-        // and the lifetime of 'epoch_pin' enforces that the reference is only accessible
-        // as long as the epoch is pinned.
-        let v = unsafe { vptr.as_ref().unwrap() };
-        return Ok(Some(v));
-    }
-
-    let mut min_key_byte = match comparison {
-        Ordering::Less => unreachable!(), // checked this above already
-        Ordering::Equal => min_key[path.len()],
-        Ordering::Greater => 0,
-    };
-
-    loop {
-        match rnode.find_next_child_or_restart(min_key_byte)? {
-            None => {
-                return Ok(None);
-            }
-            Some((key_byte, child_ref)) => {
-                let path_len = path.len();
-                path.push(key_byte);
-                let result = next_recurse(min_key, path, child_ref, epoch_pin)?;
-                if result.is_some() {
-                    return Ok(result);
-                }
-                if key_byte == u8::MAX {
-                    return Ok(None);
-                }
-                path.truncate(path_len);
-                min_key_byte = key_byte + 1;
-            }
-        }
-    }
-}
-
-// This corresponds to the 'insertOpt' function in the paper
-pub(crate) fn update_recurse<'e, 'g, K: Key, V: Value, A: ArtAllocator<V>, F>(
-    key: &[u8],
-    value_fn: F,
-    node: NodeRef<'e, V>,
-    rparent: Option<(ReadLockedNodeRef<V>, u8)>,
-    rgrandparent: Option<(ReadLockedNodeRef<V>, u8)>,
-    guard: &'g mut TreeWriteGuard<'e, K, V, A>,
-    level: usize,
-    orig_key: &[u8],
-) -> Result<(), ArtError>
-where
-    F: FnOnce(Option<&V>) -> UpdateAction<V>,
-{
-    let rnode = node.read_lock_or_restart()?;
-
-    let prefix_match_len = rnode.prefix_matches(key);
-    if prefix_match_len.is_none() {
-        let (rparent, parent_key) = rparent.expect("direct children of the root have no prefix");
-        let mut wparent = rparent.upgrade_to_write_lock_or_restart()?;
-        let mut wnode = rnode.upgrade_to_write_lock_or_restart()?;
-
-        match value_fn(None) {
-            UpdateAction::Nothing => {}
-            UpdateAction::Insert(new_value) => {
-                insert_split_prefix(key, new_value, &mut wnode, &mut wparent, parent_key, guard)?;
-            }
-            UpdateAction::Remove => {
-                panic!("unexpected Remove action on insertion");
-            }
-        }
-        wnode.write_unlock();
-        wparent.write_unlock();
-        return Ok(());
-    }
-    let prefix_match_len = prefix_match_len.unwrap();
-    let key = &key[prefix_match_len as usize..];
-    let level = level + prefix_match_len as usize;
-
-    if rnode.is_leaf() {
-        assert_eq!(key.len(), 0);
-        let (rparent, parent_key) = rparent.expect("root cannot be leaf");
-        let mut wparent = rparent.upgrade_to_write_lock_or_restart()?;
-        let mut wnode = rnode.upgrade_to_write_lock_or_restart()?;
-
-        // safety: Now that we have acquired the write lock, we have exclusive access to the
-        // value. XXX: There might be concurrent reads though?
-        let value_mut = wnode.get_leaf_value_mut();
-
-        match value_fn(Some(value_mut)) {
-            UpdateAction::Nothing => {
-                wparent.write_unlock();
-                wnode.write_unlock();
-            }
-            UpdateAction::Insert(_) => panic!("cannot insert over existing value"),
-            UpdateAction::Remove => {
-                guard.remember_obsolete_node(wnode.as_ptr());
-                wparent.delete_child(parent_key);
-                wnode.write_unlock_obsolete();
-
-                if let Some(rgrandparent) = rgrandparent {
-                    // FIXME: Ignore concurrency error. It doesn't lead to
-                    // corruption, but it means we might leak something. Until
-                    // another update cleans it up.
-                    let _ = cleanup_parent(wparent, rgrandparent, guard);
-                }
-            }
-        }
-
-        return Ok(());
-    }
-
-    let next_node = rnode.find_child_or_restart(key[0])?;
-
-    if next_node.is_none() {
-        if rnode.is_full() {
-            let (rparent, parent_key) = rparent.expect("root node cannot become full");
-            let mut wparent = rparent.upgrade_to_write_lock_or_restart()?;
-            let wnode = rnode.upgrade_to_write_lock_or_restart()?;
-
-            match value_fn(None) {
-                UpdateAction::Nothing => {
-                    wnode.write_unlock();
-                    wparent.write_unlock();
-                }
-                UpdateAction::Insert(new_value) => {
-                    insert_and_grow(key, new_value, wnode, &mut wparent, parent_key, guard)?;
-                    wparent.write_unlock();
-                }
-                UpdateAction::Remove => {
-                    panic!("unexpected Remove action on insertion");
-                }
-            };
-        } else {
-            let mut wnode = rnode.upgrade_to_write_lock_or_restart()?;
-            if let Some((rparent, _)) = rparent {
-                rparent.read_unlock_or_restart()?;
-            }
-            match value_fn(None) {
-                UpdateAction::Nothing => {}
-                UpdateAction::Insert(new_value) => {
-                    insert_to_node(&mut wnode, key, new_value, guard)?;
-                }
-                UpdateAction::Remove => {
-                    panic!("unexpected Remove action on insertion");
-                }
-            };
-            wnode.write_unlock();
-        }
-        return Ok(());
-    } else {
-        let next_child = next_node.unwrap(); // checked above it's not None
-        if let Some((ref rparent, _)) = rparent {
-            rparent.check_or_restart()?;
-        }
-
-        // recurse to next level
-        update_recurse(
-            &key[1..],
-            value_fn,
-            next_child,
-            Some((rnode, key[0])),
-            rparent,
-            guard,
-            level + 1,
-            orig_key,
-        )
-    }
-}
-
-#[derive(Clone)]
-enum PathElement {
-    Prefix(Vec<u8>),
-    KeyByte(u8),
-}
-
-impl std::fmt::Debug for PathElement {
-    fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
-        match self {
-            PathElement::Prefix(prefix) => write!(fmt, "{:?}", prefix),
-            PathElement::KeyByte(key_byte) => write!(fmt, "{}", key_byte),
-        }
-    }
-}
-
-pub(crate) fn dump_tree<'e, V: Value + std::fmt::Debug>(
-    root: RootPtr<V>,
-    epoch_pin: &'e EpochPin,
-    dst: &mut dyn std::io::Write,
-) {
-    let root_ref = NodeRef::from_root_ptr(root);
-
-    let _ = dump_recurse(&[], root_ref, &epoch_pin, 0, dst);
-}
-
-// TODO: return an Err if writeln!() returns error, instead of unwrapping
-fn dump_recurse<'e, V: Value + std::fmt::Debug>(
-    path: &[PathElement],
-    node: NodeRef<'e, V>,
-    epoch_pin: &'e EpochPin,
-    level: usize,
-    dst: &mut dyn std::io::Write,
-) -> Result<(), ConcurrentUpdateError> {
-    let indent = str::repeat(" ", level);
-
-    let rnode = node.read_lock_or_restart()?;
-    let mut path = Vec::from(path);
-    let prefix = rnode.get_prefix();
-    if prefix.len() != 0 {
-        path.push(PathElement::Prefix(Vec::from(prefix)));
-    }
-
-    if rnode.is_leaf() {
-        let vptr = rnode.get_leaf_value_ptr()?;
-        // safety: It's OK to return a ref of the pointer because we checked the version
-        // and the lifetime of 'epoch_pin' enforces that the reference is only accessible
-        // as long as the epoch is pinned.
-        let val = unsafe { vptr.as_ref().unwrap() };
-        writeln!(dst, "{} {:?}: {:?}", indent, path, val).unwrap();
-        return Ok(());
-    }
-
-    for key_byte in 0..=u8::MAX {
-        match rnode.find_child_or_restart(key_byte)? {
-            None => continue,
-            Some(child_ref) => {
-                let rchild = child_ref.read_lock_or_restart()?;
-                writeln!(
-                    dst,
-                    "{} {:?}, {}: prefix {:?}",
-                    indent,
-                    &path,
-                    key_byte,
-                    rchild.get_prefix()
-                )
-                .unwrap();
-
-                let mut child_path = path.clone();
-                child_path.push(PathElement::KeyByte(key_byte));
-
-                dump_recurse(&child_path, child_ref, epoch_pin, level + 1, dst)?;
-            }
-        }
-    }
-
-    Ok(())
-}
-
-///```text
-///        [fooba]r -> value
-///
-/// [foo]b -> [a]r  -> value
-///      e -> [ls]e -> value
-///```
-fn insert_split_prefix<'e, K: Key, V: Value, A: ArtAllocator<V>>(
-    key: &[u8],
-    value: V,
-    node: &mut WriteLockedNodeRef<V>,
-    parent: &mut WriteLockedNodeRef<V>,
-    parent_key: u8,
-    guard: &'e TreeWriteGuard<K, V, A>,
-) -> Result<(), OutOfMemoryError> {
-    let old_node = node;
-    let old_prefix = old_node.get_prefix();
-    let common_prefix_len = common_prefix(key, old_prefix);
-
-    // Allocate a node for the new value.
-    let new_value_node = allocate_node_for_value(
-        &key[common_prefix_len + 1..],
-        value,
-        guard.tree_writer.allocator,
-    )?;
-
-    // Allocate a new internal node with the common prefix
-    // FIXME: deallocate 'new_value_node' on OOM
-    let mut prefix_node =
-        node_ref::new_internal(&key[..common_prefix_len], guard.tree_writer.allocator)?;
-
-    // Add the old node and the new nodes to the new internal node
-    prefix_node.insert_old_child(old_prefix[common_prefix_len], old_node);
-    prefix_node.insert_new_child(key[common_prefix_len], new_value_node);
-
-    // Modify the prefix of the old child in place
-    old_node.truncate_prefix(old_prefix.len() - common_prefix_len - 1);
-
-    // replace the pointer in the parent
-    parent.replace_child(parent_key, prefix_node.into_ptr());
-
-    Ok(())
-}
-
-fn insert_to_node<'e, K: Key, V: Value, A: ArtAllocator<V>>(
-    wnode: &mut WriteLockedNodeRef<V>,
-    key: &[u8],
-    value: V,
-    guard: &'e TreeWriteGuard<K, V, A>,
-) -> Result<(), OutOfMemoryError> {
-    let value_child = allocate_node_for_value(&key[1..], value, guard.tree_writer.allocator)?;
-    wnode.insert_child(key[0], value_child.into_ptr());
-    Ok(())
-}
-
-// On entry: 'parent' and 'node' are locked
-fn insert_and_grow<'e, 'g, K: Key, V: Value, A: ArtAllocator<V>>(
-    key: &[u8],
-    value: V,
-    wnode: WriteLockedNodeRef<V>,
-    parent: &mut WriteLockedNodeRef<V>,
-    parent_key_byte: u8,
-    guard: &'g mut TreeWriteGuard<'e, K, V, A>,
-) -> Result<(), ArtError> {
-    let mut bigger_node = wnode.grow(guard.tree_writer.allocator)?;
-
-    // FIXME: deallocate 'bigger_node' on OOM
-    let value_child = allocate_node_for_value(&key[1..], value, guard.tree_writer.allocator)?;
-    bigger_node.insert_new_child(key[0], value_child);
-
-    // Replace the pointer in the parent
-    parent.replace_child(parent_key_byte, bigger_node.into_ptr());
-
-    guard.remember_obsolete_node(wnode.as_ptr());
-    wnode.write_unlock_obsolete();
-
-    Ok(())
-}
-
-fn cleanup_parent<'e, 'g, K: Key, V: Value, A: ArtAllocator<V>>(
-    wparent: WriteLockedNodeRef<V>,
-    rgrandparent: (ReadLockedNodeRef<V>, u8),
-    guard: &'g mut TreeWriteGuard<'e, K, V, A>,
-) -> Result<(), ArtError> {
-    let (rgrandparent, grandparent_key_byte) = rgrandparent;
-
-    // If the parent becomes completely empty after the deletion, remove the parent from the
-    // grandparent. (This case is possible because we reserve only 8 bytes for the prefix.)
-    // TODO: not implemented.
-
-    // If the parent has only one child, replace the parent with the remaining child. (This is not
-    // possible if the child's prefix field cannot absorb the parent's)
-    if wparent.num_children() == 1 {
-        // Try to lock the remaining child. This can fail if the child is updated
-        // concurrently.
-        let (key_byte, remaining_child) = wparent.find_remaining_child();
-
-        let mut wremaining_child = remaining_child.write_lock_or_restart()?;
-
-        if 1 + wremaining_child.get_prefix().len() + wparent.get_prefix().len() <= MAX_PREFIX_LEN {
-            let mut wgrandparent = rgrandparent.upgrade_to_write_lock_or_restart()?;
-
-            // Ok, we have locked the leaf, the parent, the grandparent, and the parent's only
-            // remaining leaf. Proceed with the updates.
-
-            // Update the prefix on the remaining leaf
-            wremaining_child.prepend_prefix(wparent.get_prefix(), key_byte);
-
-            // Replace the pointer in the grandparent to point directly to the remaining leaf
-            wgrandparent.replace_child(grandparent_key_byte, wremaining_child.as_ptr());
-
-            // Mark the parent as deleted.
-            guard.remember_obsolete_node(wparent.as_ptr());
-            wparent.write_unlock_obsolete();
-            return Ok(());
-        }
-    }
-
-    // If the parent's children would fit on a smaller node type after the deletion, replace it with
-    // a smaller node.
-    if wparent.can_shrink() {
-        let mut wgrandparent = rgrandparent.upgrade_to_write_lock_or_restart()?;
-        let smaller_node = wparent.shrink(guard.tree_writer.allocator)?;
-
-        // Replace the pointer in the grandparent
-        wgrandparent.replace_child(grandparent_key_byte, smaller_node.into_ptr());
-
-        guard.remember_obsolete_node(wparent.as_ptr());
-        wparent.write_unlock_obsolete();
-        return Ok(());
-    }
-
-    // nothing to do
-    wparent.write_unlock();
-    Ok(())
-}
-
-// Allocate a new leaf node to hold 'value'. If the key is long, we
-// may need to allocate new internal nodes to hold it too
-fn allocate_node_for_value<'a, V: Value, A: ArtAllocator<V>>(
-    key: &[u8],
-    value: V,
-    allocator: &'a A,
-) -> Result<NewNodeRef<'a, V, A>, OutOfMemoryError> {
-    let mut prefix_off = key.len().saturating_sub(MAX_PREFIX_LEN);
-
-    let leaf_node = node_ref::new_leaf(&key[prefix_off..key.len()], value, allocator)?;
-
-    let mut node = leaf_node;
-    while prefix_off > 0 {
-        // Need another internal node
-        let remain_prefix = &key[0..prefix_off];
-
-        prefix_off = remain_prefix.len().saturating_sub(MAX_PREFIX_LEN + 1);
-        let mut internal_node = node_ref::new_internal(
-            &remain_prefix[prefix_off..remain_prefix.len() - 1],
-            allocator,
-        )?;
-        internal_node.insert_new_child(*remain_prefix.last().unwrap(), node);
-        node = internal_node;
-    }
-
-    Ok(node)
-}
-
-fn common_prefix(a: &[u8], b: &[u8]) -> usize {
-    for i in 0..MAX_PREFIX_LEN {
-        if a[i] != b[i] {
-            return i;
-        }
-    }
-    panic!("prefixes are equal");
-}
--- a/libs/neonart/src/algorithm/lock_and_version.rs
+++ b/libs/neonart/src/algorithm/lock_and_version.rs
@@ -1,117 +0,0 @@
-//! Each node in the tree has contains one atomic word that stores three things:
-//!
-//! Bit 0: set if the node is "obsolete". An obsolete node has been removed from the tree,
-//!        but might still be accessed by concurrent readers until the epoch expires.
-//! Bit 1: set if the node is currently write-locked. Used as a spinlock.
-//! Bits 2-63: Version number, incremented every time the node is modified.
-//!
-//! AtomicLockAndVersion represents that.
-
-use std::sync::atomic::{AtomicU64, Ordering};
-
-pub(crate) struct ConcurrentUpdateError();
-
-pub(crate) struct AtomicLockAndVersion {
-    inner: AtomicU64,
-}
-
-impl AtomicLockAndVersion {
-    pub(crate) fn new() -> AtomicLockAndVersion {
-        AtomicLockAndVersion {
-            inner: AtomicU64::new(0),
-        }
-    }
-}
-
-impl AtomicLockAndVersion {
-    pub(crate) fn read_lock_or_restart(&self) -> Result<u64, ConcurrentUpdateError> {
-        let version = self.await_node_unlocked();
-        if is_obsolete(version) {
-            return Err(ConcurrentUpdateError());
-        }
-        Ok(version)
-    }
-
-    pub(crate) fn check_or_restart(&self, version: u64) -> Result<(), ConcurrentUpdateError> {
-        self.read_unlock_or_restart(version)
-    }
-
-    pub(crate) fn read_unlock_or_restart(&self, version: u64) -> Result<(), ConcurrentUpdateError> {
-        if self.inner.load(Ordering::Acquire) != version {
-            return Err(ConcurrentUpdateError());
-        }
-        Ok(())
-    }
-
-    pub(crate) fn upgrade_to_write_lock_or_restart(
-        &self,
-        version: u64,
-    ) -> Result<(), ConcurrentUpdateError> {
-        if self
-            .inner
-            .compare_exchange(
-                version,
-                set_locked_bit(version),
-                Ordering::Acquire,
-                Ordering::Relaxed,
-            )
-            .is_err()
-        {
-            return Err(ConcurrentUpdateError());
-        }
-        Ok(())
-    }
-
-    pub(crate) fn write_lock_or_restart(&self) -> Result<(), ConcurrentUpdateError> {
-        let old = self.inner.load(Ordering::Relaxed);
-        if is_obsolete(old) || is_locked(old) {
-            return Err(ConcurrentUpdateError());
-        }
-        if self
-            .inner
-            .compare_exchange(
-                old,
-                set_locked_bit(old),
-                Ordering::Acquire,
-                Ordering::Relaxed,
-            )
-            .is_err()
-        {
-            return Err(ConcurrentUpdateError());
-        }
-        Ok(())
-    }
-
-    pub(crate) fn write_unlock(&self) {
-        // reset locked bit and overflow into version
-        self.inner.fetch_add(2, Ordering::Release);
-    }
-
-    pub(crate) fn write_unlock_obsolete(&self) {
-        // set obsolete, reset locked, overflow into version
-        self.inner.fetch_add(3, Ordering::Release);
-    }
-
-    // Helper functions
-    fn await_node_unlocked(&self) -> u64 {
-        let mut version = self.inner.load(Ordering::Acquire);
-        while is_locked(version) {
-            // spinlock
-            std::thread::yield_now();
-            version = self.inner.load(Ordering::Acquire)
-        }
-        version
-    }
-}
-
-fn set_locked_bit(version: u64) -> u64 {
-    return version + 2;
-}
-
-fn is_obsolete(version: u64) -> bool {
-    return (version & 1) == 1;
-}
-
-fn is_locked(version: u64) -> bool {
-    return (version & 2) == 2;
-}
--- a/libs/neonart/src/algorithm/node_ptr.rs
+++ b/libs/neonart/src/algorithm/node_ptr.rs
--- a/libs/neonart/src/algorithm/node_ref.rs
+++ b/libs/neonart/src/algorithm/node_ref.rs
@@ -1,349 +0,0 @@
-use std::fmt::Debug;
-use std::marker::PhantomData;
-
-use super::node_ptr;
-use super::node_ptr::NodePtr;
-use crate::EpochPin;
-use crate::Value;
-use crate::algorithm::lock_and_version::AtomicLockAndVersion;
-use crate::algorithm::lock_and_version::ConcurrentUpdateError;
-use crate::allocator::ArtAllocator;
-use crate::allocator::OutOfMemoryError;
-
-pub struct NodeRef<'e, V> {
-    ptr: NodePtr<V>,
-
-    phantom: PhantomData<&'e EpochPin<'e>>,
-}
-
-impl<'e, V> Debug for NodeRef<'e, V> {
-    fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
-        write!(fmt, "{:?}", self.ptr)
-    }
-}
-
-impl<'e, V: Value> NodeRef<'e, V> {
-    pub(crate) fn from_root_ptr(root_ptr: NodePtr<V>) -> NodeRef<'e, V> {
-        NodeRef {
-            ptr: root_ptr,
-            phantom: PhantomData,
-        }
-    }
-
-    pub(crate) fn read_lock_or_restart(
-        &self,
-    ) -> Result<ReadLockedNodeRef<'e, V>, ConcurrentUpdateError> {
-        let version = self.lockword().read_lock_or_restart()?;
-        Ok(ReadLockedNodeRef {
-            ptr: self.ptr,
-            version,
-            phantom: self.phantom,
-        })
-    }
-
-    pub(crate) fn write_lock_or_restart(
-        &self,
-    ) -> Result<WriteLockedNodeRef<'e, V>, ConcurrentUpdateError> {
-        self.lockword().write_lock_or_restart()?;
-        Ok(WriteLockedNodeRef {
-            ptr: self.ptr,
-            phantom: self.phantom,
-        })
-    }
-
-    fn lockword(&self) -> &AtomicLockAndVersion {
-        self.ptr.lockword()
-    }
-}
-
-/// A reference to a node that has been optimistically read-locked. The functions re-check
-/// the version after each read.
-pub struct ReadLockedNodeRef<'e, V> {
-    ptr: NodePtr<V>,
-    version: u64,
-
-    phantom: PhantomData<&'e EpochPin<'e>>,
-}
-
-impl<'e, V: Value> ReadLockedNodeRef<'e, V> {
-    pub(crate) fn is_leaf(&self) -> bool {
-        self.ptr.is_leaf()
-    }
-
-    pub(crate) fn is_full(&self) -> bool {
-        self.ptr.is_full()
-    }
-
-    pub(crate) fn get_prefix(&self) -> &[u8] {
-        self.ptr.get_prefix()
-    }
-
-    /// Note: because we're only holding a read lock, the prefix can change concurrently.
-    /// You must be prepared to restart, if read_unlock() returns error later.
-    ///
-    /// Returns the length of the prefix, or None if it's not a match
-    pub(crate) fn prefix_matches(&self, key: &[u8]) -> Option<usize> {
-        self.ptr.prefix_matches(key)
-    }
-
-    pub(crate) fn find_child_or_restart(
-        &self,
-        key_byte: u8,
-    ) -> Result<Option<NodeRef<'e, V>>, ConcurrentUpdateError> {
-        let child_or_value = self.ptr.find_child(key_byte);
-        self.ptr.lockword().check_or_restart(self.version)?;
-
-        match child_or_value {
-            None => Ok(None),
-            Some(child_ptr) => Ok(Some(NodeRef {
-                ptr: child_ptr,
-                phantom: self.phantom,
-            })),
-        }
-    }
-
-    pub(crate) fn find_next_child_or_restart(
-        &self,
-        min_key_byte: u8,
-    ) -> Result<Option<(u8, NodeRef<'e, V>)>, ConcurrentUpdateError> {
-        let child_or_value = self.ptr.find_next_child(min_key_byte);
-        self.ptr.lockword().check_or_restart(self.version)?;
-
-        match child_or_value {
-            None => Ok(None),
-            Some((k, child_ptr)) => Ok(Some((
-                k,
-                NodeRef {
-                    ptr: child_ptr,
-                    phantom: self.phantom,
-                },
-            ))),
-        }
-    }
-
-    pub(crate) fn get_leaf_value_ptr(&self) -> Result<*const V, ConcurrentUpdateError> {
-        let result = self.ptr.get_leaf_value();
-        self.ptr.lockword().check_or_restart(self.version)?;
-
-        // Extend the lifetime.
-        let result = std::ptr::from_ref(result);
-
-        Ok(result)
-    }
-
-    pub(crate) fn upgrade_to_write_lock_or_restart(
-        self,
-    ) -> Result<WriteLockedNodeRef<'e, V>, ConcurrentUpdateError> {
-        self.ptr
-            .lockword()
-            .upgrade_to_write_lock_or_restart(self.version)?;
-
-        Ok(WriteLockedNodeRef {
-            ptr: self.ptr,
-            phantom: self.phantom,
-        })
-    }
-
-    pub(crate) fn read_unlock_or_restart(self) -> Result<(), ConcurrentUpdateError> {
-        self.ptr.lockword().check_or_restart(self.version)?;
-        Ok(())
-    }
-
-    pub(crate) fn check_or_restart(&self) -> Result<(), ConcurrentUpdateError> {
-        self.ptr.lockword().check_or_restart(self.version)?;
-        Ok(())
-    }
-}
-
-/// A reference to a node that has been optimistically read-locked. The functions re-check
-/// the version after each read.
-pub struct WriteLockedNodeRef<'e, V> {
-    ptr: NodePtr<V>,
-    phantom: PhantomData<&'e EpochPin<'e>>,
-}
-
-impl<'e, V: Value> WriteLockedNodeRef<'e, V> {
-    pub(crate) fn can_shrink(&self) -> bool {
-        self.ptr.can_shrink()
-    }
-
-    pub(crate) fn num_children(&self) -> usize {
-        self.ptr.num_children()
-    }
-
-    pub(crate) fn write_unlock(mut self) {
-        self.ptr.lockword().write_unlock();
-        self.ptr = NodePtr::null();
-    }
-
-    pub(crate) fn write_unlock_obsolete(mut self) {
-        self.ptr.lockword().write_unlock_obsolete();
-        self.ptr = NodePtr::null();
-    }
-
-    pub(crate) fn get_prefix(&self) -> &[u8] {
-        self.ptr.get_prefix()
-    }
-
-    pub(crate) fn truncate_prefix(&mut self, new_prefix_len: usize) {
-        self.ptr.truncate_prefix(new_prefix_len)
-    }
-
-    pub(crate) fn prepend_prefix(&mut self, prefix: &[u8], prefix_byte: u8) {
-        self.ptr.prepend_prefix(prefix, prefix_byte)
-    }
-
-    pub(crate) fn insert_child(&mut self, key_byte: u8, child: NodePtr<V>) {
-        self.ptr.insert_child(key_byte, child)
-    }
-
-    pub(crate) fn get_leaf_value_mut(&mut self) -> &mut V {
-        self.ptr.get_leaf_value_mut()
-    }
-
-    pub(crate) fn grow<'a, A>(
-        &self,
-        allocator: &'a A,
-    ) -> Result<NewNodeRef<'a, V, A>, OutOfMemoryError>
-    where
-        A: ArtAllocator<V>,
-    {
-        let new_node = self.ptr.grow(allocator)?;
-        Ok(NewNodeRef {
-            ptr: new_node,
-            allocator,
-            extra_nodes: Vec::new(),
-        })
-    }
-
-    pub(crate) fn shrink<'a, A>(
-        &self,
-        allocator: &'a A,
-    ) -> Result<NewNodeRef<'a, V, A>, OutOfMemoryError>
-    where
-        A: ArtAllocator<V>,
-    {
-        let new_node = self.ptr.shrink(allocator)?;
-        Ok(NewNodeRef {
-            ptr: new_node,
-            allocator,
-            extra_nodes: Vec::new(),
-        })
-    }
-
-    pub(crate) fn as_ptr(&self) -> NodePtr<V> {
-        self.ptr
-    }
-
-    pub(crate) fn replace_child(&mut self, key_byte: u8, replacement: NodePtr<V>) {
-        self.ptr.replace_child(key_byte, replacement);
-    }
-
-    pub(crate) fn delete_child(&mut self, key_byte: u8) {
-        self.ptr.delete_child(key_byte);
-    }
-
-    pub(crate) fn find_remaining_child(&self) -> (u8, NodeRef<'e, V>) {
-        assert_eq!(self.num_children(), 1);
-        let child_or_value = self.ptr.find_next_child(0);
-
-        match child_or_value {
-            None => panic!("could not find only child in node"),
-            Some((k, child_ptr)) => (
-                k,
-                NodeRef {
-                    ptr: child_ptr,
-                    phantom: self.phantom,
-                },
-            ),
-        }
-    }
-}
-
-impl<'e, V> Drop for WriteLockedNodeRef<'e, V> {
-    fn drop(&mut self) {
-        if !self.ptr.is_null() {
-            self.ptr.lockword().write_unlock();
-        }
-    }
-}
-
-pub(crate) struct NewNodeRef<'a, V, A>
-where
-    V: Value,
-    A: ArtAllocator<V>,
-{
-    ptr: NodePtr<V>,
-    allocator: &'a A,
-
-    extra_nodes: Vec<NodePtr<V>>,
-}
-
-impl<'a, V, A> NewNodeRef<'a, V, A>
-where
-    V: Value,
-    A: ArtAllocator<V>,
-{
-    pub(crate) fn insert_old_child(&mut self, key_byte: u8, child: &WriteLockedNodeRef<V>) {
-        self.ptr.insert_child(key_byte, child.as_ptr())
-    }
-
-    pub(crate) fn into_ptr(mut self) -> NodePtr<V> {
-        let ptr = self.ptr;
-        self.ptr = NodePtr::null();
-        ptr
-    }
-
-    pub(crate) fn insert_new_child(&mut self, key_byte: u8, child: NewNodeRef<'a, V, A>) {
-        let child_ptr = child.into_ptr();
-        self.ptr.insert_child(key_byte, child_ptr);
-        self.extra_nodes.push(child_ptr);
-    }
-}
-
-impl<'a, V, A> Drop for NewNodeRef<'a, V, A>
-where
-    V: Value,
-    A: ArtAllocator<V>,
-{
-    /// This drop implementation deallocates the newly allocated node, if into_ptr() was not called.
-    fn drop(&mut self) {
-        if !self.ptr.is_null() {
-            self.ptr.deallocate(self.allocator);
-            for p in self.extra_nodes.iter() {
-                p.deallocate(self.allocator);
-            }
-        }
-    }
-}
-
-pub(crate) fn new_internal<'a, V, A>(
-    prefix: &[u8],
-    allocator: &'a A,
-) -> Result<NewNodeRef<'a, V, A>, OutOfMemoryError>
-where
-    V: Value,
-    A: ArtAllocator<V>,
-{
-    Ok(NewNodeRef {
-        ptr: node_ptr::new_internal(prefix, allocator)?,
-        allocator,
-        extra_nodes: Vec::new(),
-    })
-}
-
-pub(crate) fn new_leaf<'a, V, A>(
-    prefix: &[u8],
-    value: V,
-    allocator: &'a A,
-) -> Result<NewNodeRef<'a, V, A>, OutOfMemoryError>
-where
-    V: Value,
-    A: ArtAllocator<V>,
-{
-    Ok(NewNodeRef {
-        ptr: node_ptr::new_leaf(prefix, value, allocator)?,
-        allocator,
-        extra_nodes: Vec::new(),
-    })
-}
--- a/libs/neonart/src/allocator.rs
+++ b/libs/neonart/src/allocator.rs
@@ -1,158 +0,0 @@
-pub mod block;
-mod multislab;
-mod slab;
-pub mod r#static;
-
-use std::alloc::Layout;
-use std::marker::PhantomData;
-use std::mem::MaybeUninit;
-use std::sync::atomic::Ordering;
-
-use crate::allocator::multislab::MultiSlabAllocator;
-use crate::allocator::r#static::alloc_from_slice;
-
-use spin;
-
-use crate::Tree;
-pub use crate::algorithm::node_ptr::{
-    NodeInternal4, NodeInternal16, NodeInternal48, NodeInternal256, NodeLeaf,
-};
-
-#[derive(Debug)]
-pub struct OutOfMemoryError();
-
-pub trait ArtAllocator<V: crate::Value> {
-    fn alloc_tree(&self) -> *mut Tree<V>;
-
-    fn alloc_node_internal4(&self) -> *mut NodeInternal4<V>;
-    fn alloc_node_internal16(&self) -> *mut NodeInternal16<V>;
-    fn alloc_node_internal48(&self) -> *mut NodeInternal48<V>;
-    fn alloc_node_internal256(&self) -> *mut NodeInternal256<V>;
-    fn alloc_node_leaf(&self) -> *mut NodeLeaf<V>;
-
-    fn dealloc_node_internal4(&self, ptr: *mut NodeInternal4<V>);
-    fn dealloc_node_internal16(&self, ptr: *mut NodeInternal16<V>);
-    fn dealloc_node_internal48(&self, ptr: *mut NodeInternal48<V>);
-    fn dealloc_node_internal256(&self, ptr: *mut NodeInternal256<V>);
-    fn dealloc_node_leaf(&self, ptr: *mut NodeLeaf<V>);
-}
-
-pub struct ArtMultiSlabAllocator<'t, V>
-where
-    V: crate::Value,
-{
-    tree_area: spin::Mutex<Option<&'t mut MaybeUninit<Tree<V>>>>,
-
-    pub(crate) inner: MultiSlabAllocator<'t, 5>,
-
-    phantom_val: PhantomData<V>,
-}
-
-impl<'t, V: crate::Value> ArtMultiSlabAllocator<'t, V> {
-    const LAYOUTS: [Layout; 5] = [
-        Layout::new::<NodeInternal4<V>>(),
-        Layout::new::<NodeInternal16<V>>(),
-        Layout::new::<NodeInternal48<V>>(),
-        Layout::new::<NodeInternal256<V>>(),
-        Layout::new::<NodeLeaf<V>>(),
-    ];
-
-    pub fn new(area: &'t mut [MaybeUninit<u8>]) -> &'t mut ArtMultiSlabAllocator<'t, V> {
-        let (allocator_area, remain) = alloc_from_slice::<ArtMultiSlabAllocator<V>>(area);
-        let (tree_area, remain) = alloc_from_slice::<Tree<V>>(remain);
-
-        let allocator = allocator_area.write(ArtMultiSlabAllocator {
-            tree_area: spin::Mutex::new(Some(tree_area)),
-            inner: MultiSlabAllocator::new(remain, &Self::LAYOUTS),
-            phantom_val: PhantomData,
-        });
-
-        allocator
-    }
-}
-
-impl<'t, V: crate::Value> ArtAllocator<V> for ArtMultiSlabAllocator<'t, V> {
-    fn alloc_tree(&self) -> *mut Tree<V> {
-        let mut t = self.tree_area.lock();
-        if let Some(tree_area) = t.take() {
-            return tree_area.as_mut_ptr().cast();
-        }
-        panic!("cannot allocate more than one tree");
-    }
-
-    fn alloc_node_internal4(&self) -> *mut NodeInternal4<V> {
-        self.inner.alloc_slab(0).cast()
-    }
-    fn alloc_node_internal16(&self) -> *mut NodeInternal16<V> {
-        self.inner.alloc_slab(1).cast()
-    }
-    fn alloc_node_internal48(&self) -> *mut NodeInternal48<V> {
-        self.inner.alloc_slab(2).cast()
-    }
-    fn alloc_node_internal256(&self) -> *mut NodeInternal256<V> {
-        self.inner.alloc_slab(3).cast()
-    }
-    fn alloc_node_leaf(&self) -> *mut NodeLeaf<V> {
-        self.inner.alloc_slab(4).cast()
-    }
-
-    fn dealloc_node_internal4(&self, ptr: *mut NodeInternal4<V>) {
-        self.inner.dealloc_slab(0, ptr.cast())
-    }
-
-    fn dealloc_node_internal16(&self, ptr: *mut NodeInternal16<V>) {
-        self.inner.dealloc_slab(1, ptr.cast())
-    }
-    fn dealloc_node_internal48(&self, ptr: *mut NodeInternal48<V>) {
-        self.inner.dealloc_slab(2, ptr.cast())
-    }
-    fn dealloc_node_internal256(&self, ptr: *mut NodeInternal256<V>) {
-        self.inner.dealloc_slab(3, ptr.cast())
-    }
-    fn dealloc_node_leaf(&self, ptr: *mut NodeLeaf<V>) {
-        self.inner.dealloc_slab(4, ptr.cast())
-    }
-}
-
-impl<'t, V: crate::Value> ArtMultiSlabAllocator<'t, V> {
-    pub(crate) fn get_statistics(&self) -> ArtMultiSlabStats {
-        ArtMultiSlabStats {
-            num_internal4: self.inner.slab_descs[0]
-                .num_allocated
-                .load(Ordering::Relaxed),
-            num_internal16: self.inner.slab_descs[1]
-                .num_allocated
-                .load(Ordering::Relaxed),
-            num_internal48: self.inner.slab_descs[2]
-                .num_allocated
-                .load(Ordering::Relaxed),
-            num_internal256: self.inner.slab_descs[3]
-                .num_allocated
-                .load(Ordering::Relaxed),
-            num_leaf: self.inner.slab_descs[4]
-                .num_allocated
-                .load(Ordering::Relaxed),
-
-            num_blocks_internal4: self.inner.slab_descs[0].num_blocks.load(Ordering::Relaxed),
-            num_blocks_internal16: self.inner.slab_descs[1].num_blocks.load(Ordering::Relaxed),
-            num_blocks_internal48: self.inner.slab_descs[2].num_blocks.load(Ordering::Relaxed),
-            num_blocks_internal256: self.inner.slab_descs[3].num_blocks.load(Ordering::Relaxed),
-            num_blocks_leaf: self.inner.slab_descs[4].num_blocks.load(Ordering::Relaxed),
-        }
-    }
-}
-
-#[derive(Clone, Debug)]
-pub struct ArtMultiSlabStats {
-    pub num_internal4: u64,
-    pub num_internal16: u64,
-    pub num_internal48: u64,
-    pub num_internal256: u64,
-    pub num_leaf: u64,
-
-    pub num_blocks_internal4: u64,
-    pub num_blocks_internal16: u64,
-    pub num_blocks_internal48: u64,
-    pub num_blocks_internal256: u64,
-    pub num_blocks_leaf: u64,
-}
--- a/libs/neonart/src/allocator/block.rs
+++ b/libs/neonart/src/allocator/block.rs
@@ -1,191 +0,0 @@
-//! Simple allocator of fixed-size blocks
-
-use std::mem::MaybeUninit;
-use std::sync::atomic::{AtomicU64, Ordering};
-
-use spin;
-
-pub const BLOCK_SIZE: usize = 16 * 1024;
-
-const INVALID_BLOCK: u64 = u64::MAX;
-
-pub(crate) struct BlockAllocator<'t> {
-    blocks_ptr: &'t [MaybeUninit<u8>],
-    num_blocks: u64,
-    num_initialized: AtomicU64,
-
-    freelist_head: spin::Mutex<u64>,
-}
-
-struct FreeListBlock {
-    inner: spin::Mutex<FreeListBlockInner>,
-}
-
-struct FreeListBlockInner {
-    next: u64,
-
-    num_free_blocks: u64,
-    free_blocks: [u64; 100], // FIXME: fill the rest of the block
-}
-
-impl<'t> BlockAllocator<'t> {
-    pub(crate) fn new(area: &'t mut [MaybeUninit<u8>]) -> Self {
-        // Use all the space for the blocks
-        let padding = area.as_ptr().align_offset(BLOCK_SIZE);
-        let remain = &mut area[padding..];
-
-        let num_blocks = (remain.len() / BLOCK_SIZE) as u64;
-
-        BlockAllocator {
-            blocks_ptr: remain,
-            num_blocks,
-            num_initialized: AtomicU64::new(0),
-            freelist_head: spin::Mutex::new(INVALID_BLOCK),
-        }
-    }
-
-    /// safety: you must hold a lock on the pointer to this block, otherwise it might get
-    /// reused for another kind of block
-    fn read_freelist_block(&self, blkno: u64) -> &FreeListBlock {
-        let ptr: *const FreeListBlock = self.get_block_ptr(blkno).cast();
-        unsafe { ptr.as_ref().unwrap() }
-    }
-
-    fn get_block_ptr(&self, blkno: u64) -> *mut u8 {
-        assert!(blkno < self.num_blocks);
-        unsafe {
-            self.blocks_ptr
-                .as_ptr()
-                .byte_offset(blkno as isize * BLOCK_SIZE as isize)
-        }
-        .cast_mut()
-        .cast()
-    }
-
-    #[allow(clippy::mut_from_ref)]
-    pub(crate) fn alloc_block(&self) -> &mut [MaybeUninit<u8>] {
-        // FIXME: handle OOM
-        let blkno = self.alloc_block_internal();
-        if blkno == INVALID_BLOCK {
-            panic!("out of memory");
-        }
-
-        let ptr: *mut MaybeUninit<u8> = self.get_block_ptr(blkno).cast();
-        unsafe { std::slice::from_raw_parts_mut(ptr, BLOCK_SIZE) }
-    }
-
-    fn alloc_block_internal(&self) -> u64 {
-        //  check the free list.
-        {
-            let mut freelist_head = self.freelist_head.lock();
-            if *freelist_head != INVALID_BLOCK {
-                let freelist_block = self.read_freelist_block(*freelist_head);
-
-                // acquire lock on the freelist block before releasing the lock on the parent (i.e. lock coupling)
-                let mut g = freelist_block.inner.lock();
-
-                if g.num_free_blocks > 0 {
-                    g.num_free_blocks -= 1;
-                    let result = g.free_blocks[g.num_free_blocks as usize];
-                    return result;
-                } else {
-                    // consume the freelist block itself
-                    let result = *freelist_head;
-                    *freelist_head = g.next;
-                    // This freelist block is now unlinked and can be repurposed
-                    drop(g);
-                    return result;
-                }
-            }
-        }
-
-        // If there are some blocks left that we've never used, pick next such block
-        let mut next_uninitialized = self.num_initialized.load(Ordering::Relaxed);
-        while next_uninitialized < self.num_blocks {
-            match self.num_initialized.compare_exchange(
-                next_uninitialized,
-                next_uninitialized + 1,
-                Ordering::Relaxed,
-                Ordering::Relaxed,
-            ) {
-                Ok(_) => {
-                    return next_uninitialized;
-                }
-                Err(old) => {
-                    next_uninitialized = old;
-                    continue;
-                }
-            }
-        }
-
-        // out of blocks
-        return INVALID_BLOCK;
-    }
-
-    // TODO: this is currently unused. The slab allocator never releases blocks
-    #[allow(dead_code)]
-    pub(crate) fn release_block(&self, block_ptr: *mut u8) {
-        let blockno = unsafe { block_ptr.byte_offset_from(self.blocks_ptr) / BLOCK_SIZE as isize };
-        self.release_block_internal(blockno as u64);
-    }
-
-    fn release_block_internal(&self, blockno: u64) {
-        let mut freelist_head = self.freelist_head.lock();
-        if *freelist_head != INVALID_BLOCK {
-            let freelist_block = self.read_freelist_block(*freelist_head);
-
-            // acquire lock on the freelist block before releasing the lock on the parent (i.e. lock coupling)
-            let mut g = freelist_block.inner.lock();
-
-            let num_free_blocks = g.num_free_blocks;
-            if num_free_blocks < g.free_blocks.len() as u64 {
-                g.free_blocks[num_free_blocks as usize] = blockno;
-                g.num_free_blocks += 1;
-                return;
-            }
-        }
-
-        // Convert the block into a new freelist block
-        let block_ptr: *mut FreeListBlock = self.get_block_ptr(blockno).cast();
-        let init = FreeListBlock {
-            inner: spin::Mutex::new(FreeListBlockInner {
-                next: *freelist_head,
-                num_free_blocks: 0,
-                free_blocks: [INVALID_BLOCK; 100],
-            }),
-        };
-        unsafe { (*block_ptr) = init };
-        *freelist_head = blockno;
-    }
-
-    // for debugging
-    pub(crate) fn get_statistics(&self) -> BlockAllocatorStats {
-        let mut num_free_blocks = 0;
-
-        let mut _prev_lock = None;
-        let head_lock = self.freelist_head.lock();
-        let mut next_blk = *head_lock;
-        let mut _head_lock = Some(head_lock);
-        while next_blk != INVALID_BLOCK {
-            let freelist_block = self.read_freelist_block(next_blk);
-            let lock = freelist_block.inner.lock();
-            num_free_blocks += lock.num_free_blocks;
-            next_blk = lock.next;
-            _prev_lock = Some(lock); // hold the lock until we've read the next block
-            _head_lock = None;
-        }
-
-        BlockAllocatorStats {
-            num_blocks: self.num_blocks,
-            num_initialized: self.num_initialized.load(Ordering::Relaxed),
-            num_free_blocks,
-        }
-    }
-}
-
-#[derive(Clone, Debug)]
-pub struct BlockAllocatorStats {
-    pub num_blocks: u64,
-    pub num_initialized: u64,
-    pub num_free_blocks: u64,
-}
--- a/libs/neonart/src/allocator/multislab.rs
+++ b/libs/neonart/src/allocator/multislab.rs
@@ -1,33 +0,0 @@
-use std::alloc::Layout;
-use std::mem::MaybeUninit;
-
-use crate::allocator::block::BlockAllocator;
-use crate::allocator::slab::SlabDesc;
-
-pub struct MultiSlabAllocator<'t, const N: usize> {
-    pub(crate) block_allocator: BlockAllocator<'t>,
-
-    pub(crate) slab_descs: [SlabDesc; N],
-}
-
-impl<'t, const N: usize> MultiSlabAllocator<'t, N> {
-    pub(crate) fn new(
-        area: &'t mut [MaybeUninit<u8>],
-        layouts: &[Layout; N],
-    ) -> MultiSlabAllocator<'t, N> {
-        let block_allocator = BlockAllocator::new(area);
-        MultiSlabAllocator {
-            block_allocator,
-
-            slab_descs: std::array::from_fn(|i| SlabDesc::new(&layouts[i])),
-        }
-    }
-
-    pub(crate) fn alloc_slab(&self, slab_idx: usize) -> *mut u8 {
-        self.slab_descs[slab_idx].alloc_chunk(&self.block_allocator)
-    }
-
-    pub(crate) fn dealloc_slab(&self, slab_idx: usize, ptr: *mut u8) {
-        self.slab_descs[slab_idx].dealloc_chunk(ptr, &self.block_allocator)
-    }
-}
--- a/libs/neonart/src/allocator/slab.rs
+++ b/libs/neonart/src/allocator/slab.rs
@@ -1,432 +0,0 @@
-//! A slab allocator that carves out fixed-size chunks from larger blocks.
-//!
-//!
-
-use std::alloc::Layout;
-use std::mem::MaybeUninit;
-use std::ops::Deref;
-use std::sync::atomic::{AtomicU32, AtomicU64, Ordering};
-
-use spin;
-
-use super::alloc_from_slice;
-use super::block::BlockAllocator;
-
-use crate::allocator::block::BLOCK_SIZE;
-
-pub(crate) struct SlabDesc {
-    pub(crate) layout: Layout,
-
-    block_lists: spin::RwLock<BlockLists>,
-
-    pub(crate) num_blocks: AtomicU64,
-    pub(crate) num_allocated: AtomicU64,
-}
-
-// FIXME: Not sure if SlabDesc is really Sync or Send. It probably is when it's empty, but
-// 'block_lists' contains pointers when it's not empty. In the current use as part of the
-// the art tree, SlabDescs are only moved during initialization.
-unsafe impl Sync for SlabDesc {}
-unsafe impl Send for SlabDesc {}
-
-#[derive(Default, Debug)]
-struct BlockLists {
-    full_blocks: BlockList,
-    nonfull_blocks: BlockList,
-}
-
-impl BlockLists {
-    // Unlink a node. It must be in either one of the two lists.
-    unsafe fn unlink(&mut self, elem: *mut SlabBlockHeader) {
-        let list = unsafe {
-            if (*elem).next.is_null() {
-                if self.full_blocks.tail == elem {
-                    Some(&mut self.full_blocks)
-                } else {
-                    Some(&mut self.nonfull_blocks)
-                }
-            } else if (*elem).prev.is_null() {
-                if self.full_blocks.head == elem {
-                    Some(&mut self.full_blocks)
-                } else {
-                    Some(&mut self.nonfull_blocks)
-                }
-            } else {
-                None
-            }
-        };
-        unsafe { unlink_slab_block(list, elem) };
-    }
-}
-
-unsafe fn unlink_slab_block(mut list: Option<&mut BlockList>, elem: *mut SlabBlockHeader) {
-    unsafe {
-        if (*elem).next.is_null() {
-            assert_eq!(list.as_ref().unwrap().tail, elem);
-            list.as_mut().unwrap().tail = (*elem).prev;
-        } else {
-            assert_eq!((*(*elem).next).prev, elem);
-            (*(*elem).next).prev = (*elem).prev;
-        }
-        if (*elem).prev.is_null() {
-            assert_eq!(list.as_ref().unwrap().head, elem);
-            list.as_mut().unwrap().head = (*elem).next;
-        } else {
-            assert_eq!((*(*elem).prev).next, elem);
-            (*(*elem).prev).next = (*elem).next;
-        }
-    }
-}
-
-#[derive(Debug)]
-struct BlockList {
-    head: *mut SlabBlockHeader,
-    tail: *mut SlabBlockHeader,
-}
-
-impl Default for BlockList {
-    fn default() -> Self {
-        BlockList {
-            head: std::ptr::null_mut(),
-            tail: std::ptr::null_mut(),
-        }
-    }
-}
-
-impl BlockList {
-    unsafe fn push_head(&mut self, elem: *mut SlabBlockHeader) {
-        unsafe {
-            if self.is_empty() {
-                self.tail = elem;
-                (*elem).next = std::ptr::null_mut();
-            } else {
-                (*elem).next = self.head;
-                (*self.head).prev = elem;
-            }
-            (*elem).prev = std::ptr::null_mut();
-            self.head = elem;
-        }
-    }
-
-    fn is_empty(&self) -> bool {
-        self.head.is_null()
-    }
-
-    unsafe fn unlink(&mut self, elem: *mut SlabBlockHeader) {
-        unsafe { unlink_slab_block(Some(self), elem) }
-    }
-
-    #[cfg(test)]
-    fn dump(&self) {
-        let mut next = self.head;
-
-        while !next.is_null() {
-            let n = unsafe { next.as_ref() }.unwrap();
-            eprintln!(
-                "  blk {:?} (free {}/{})",
-                next,
-                n.num_free_chunks.load(Ordering::Relaxed),
-                n.num_chunks
-            );
-            next = n.next;
-        }
-    }
-}
-
-impl SlabDesc {
-    pub(crate) fn new(layout: &Layout) -> SlabDesc {
-        SlabDesc {
-            layout: *layout,
-            block_lists: spin::RwLock::new(BlockLists::default()),
-            num_allocated: AtomicU64::new(0),
-            num_blocks: AtomicU64::new(0),
-        }
-    }
-}
-
-#[derive(Debug)]
-struct SlabBlockHeader {
-    free_chunks_head: spin::Mutex<*mut FreeChunk>,
-    num_free_chunks: AtomicU32,
-    num_chunks: u32, // this is really a constant for a given Layout
-
-    // these fields are protected by the lock on the BlockLists
-    prev: *mut SlabBlockHeader,
-    next: *mut SlabBlockHeader,
-}
-
-struct FreeChunk {
-    next: *mut FreeChunk,
-}
-
-enum ReadOrWriteGuard<'a, T> {
-    Read(spin::RwLockReadGuard<'a, T>),
-    Write(spin::RwLockWriteGuard<'a, T>),
-}
-
-impl<'a, T> Deref for ReadOrWriteGuard<'a, T> {
-    type Target = T;
-
-    fn deref(&self) -> &<Self as Deref>::Target {
-        match self {
-            ReadOrWriteGuard::Read(g) => g.deref(),
-            ReadOrWriteGuard::Write(g) => g.deref(),
-        }
-    }
-}
-
-impl SlabDesc {
-    pub fn alloc_chunk(&self, block_allocator: &BlockAllocator) -> *mut u8 {
-        // Are there any free chunks?
-        let mut acquire_write = false;
-        'outer: loop {
-            let mut block_lists_guard = if acquire_write {
-                ReadOrWriteGuard::Write(self.block_lists.write())
-            } else {
-                ReadOrWriteGuard::Read(self.block_lists.read())
-            };
-            'inner: loop {
-                let block_ptr = block_lists_guard.nonfull_blocks.head;
-                if block_ptr.is_null() {
-                    break 'outer;
-                }
-                unsafe {
-                    let mut free_chunks_head = (*block_ptr).free_chunks_head.lock();
-                    if !(*free_chunks_head).is_null() {
-                        let result = *free_chunks_head;
-                        (*free_chunks_head) = (*result).next;
-                        let _old = (*block_ptr).num_free_chunks.fetch_sub(1, Ordering::Relaxed);
-
-                        self.num_allocated.fetch_add(1, Ordering::Relaxed);
-                        return result.cast();
-                    }
-                }
-
-                // The block at the head of the list was full. Grab write lock and retry
-                match block_lists_guard {
-                    ReadOrWriteGuard::Read(_) => {
-                        acquire_write = true;
-                        continue 'outer;
-                    }
-                    ReadOrWriteGuard::Write(ref mut g) => {
-                        // move the node to the list of full blocks
-                        unsafe {
-                            g.nonfull_blocks.unlink(block_ptr);
-                            g.full_blocks.push_head(block_ptr);
-                        };
-                        continue 'inner;
-                    }
-                }
-            }
-        }
-
-        // no free chunks. Allocate a new block (and the chunk from that)
-        let (new_block, new_chunk) = self.alloc_block_and_chunk(block_allocator);
-        self.num_blocks.fetch_add(1, Ordering::Relaxed);
-
-        // Add the block to the list in the SlabDesc
-        unsafe {
-            let mut block_lists_guard = self.block_lists.write();
-            block_lists_guard.nonfull_blocks.push_head(new_block);
-        }
-        self.num_allocated.fetch_add(1, Ordering::Relaxed);
-        new_chunk
-    }
-
-    pub fn dealloc_chunk(&self, chunk_ptr: *mut u8, _block_allocator: &BlockAllocator) {
-        // Find the block it belongs to. You can find the block from the address. (And knowing the
-        // layout, you could calculate the chunk number too.)
-        let block_ptr: *mut SlabBlockHeader = {
-            let block_addr = (chunk_ptr.addr() / BLOCK_SIZE) * BLOCK_SIZE;
-            chunk_ptr.with_addr(block_addr).cast()
-        };
-        let chunk_ptr: *mut FreeChunk = chunk_ptr.cast();
-
-        // Mark the chunk as free in 'freechunks' list
-        let num_chunks;
-        let num_free_chunks;
-        unsafe {
-            let mut free_chunks_head = (*block_ptr).free_chunks_head.lock();
-            (*chunk_ptr).next = *free_chunks_head;
-            *free_chunks_head = chunk_ptr;
-
-            num_free_chunks = (*block_ptr).num_free_chunks.fetch_add(1, Ordering::Relaxed) + 1;
-            num_chunks = (*block_ptr).num_chunks;
-        }
-
-        if num_free_chunks == 1 {
-            // If the block was full previously, add it to the nonfull blocks list. Note that
-            // we're not holding the lock anymore, so it can immediately become full again.
-            // That's harmless, it will be moved back to the full list again when a call
-            // to alloc_chunk() sees it.
-            let mut block_lists = self.block_lists.write();
-            unsafe {
-                block_lists.unlink(block_ptr);
-                block_lists.nonfull_blocks.push_head(block_ptr);
-            };
-        } else if num_free_chunks == num_chunks {
-            // If the block became completely empty, move it to the free list
-            // TODO
-            // FIXME: we're still holding the spinlock. It's not exactly safe to return it to
-            // the free blocks list, is it? Defer it as garbage to wait out concurrent updates?
-            //block_allocator.release_block()
-        }
-
-        // update stats
-        self.num_allocated.fetch_sub(1, Ordering::Relaxed);
-    }
-
-    fn alloc_block_and_chunk(
-        &self,
-        block_allocator: &BlockAllocator,
-    ) -> (*mut SlabBlockHeader, *mut u8) {
-        // fixme: handle OOM
-        let block_slice: &mut [MaybeUninit<u8>] = block_allocator.alloc_block();
-        let (block_header, remain) = alloc_from_slice::<SlabBlockHeader>(block_slice);
-
-        let padding = remain.as_ptr().align_offset(self.layout.align());
-
-        let num_chunks = (remain.len() - padding) / self.layout.size();
-
-        let first_chunk_ptr: *mut FreeChunk = remain[padding..].as_mut_ptr().cast();
-
-        unsafe {
-            let mut chunk_ptr = first_chunk_ptr;
-            for _ in 0..num_chunks - 1 {
-                let next_chunk_ptr = chunk_ptr.byte_add(self.layout.size());
-                (*chunk_ptr).next = next_chunk_ptr;
-                chunk_ptr = next_chunk_ptr;
-            }
-            (*chunk_ptr).next = std::ptr::null_mut();
-
-            let result_chunk = first_chunk_ptr;
-
-            let block_header = block_header.write(SlabBlockHeader {
-                free_chunks_head: spin::Mutex::new((*first_chunk_ptr).next),
-                prev: std::ptr::null_mut(),
-                next: std::ptr::null_mut(),
-                num_chunks: num_chunks as u32,
-                num_free_chunks: AtomicU32::new(num_chunks as u32 - 1),
-            });
-
-            (block_header, result_chunk.cast())
-        }
-    }
-
-    #[cfg(test)]
-    fn dump(&self) {
-        eprintln!(
-            "slab dump ({} blocks, {} allocated chunks)",
-            self.num_blocks.load(Ordering::Relaxed),
-            self.num_allocated.load(Ordering::Relaxed)
-        );
-        let lists = self.block_lists.read();
-
-        eprintln!("nonfull blocks:");
-        lists.nonfull_blocks.dump();
-        eprintln!("full blocks:");
-        lists.full_blocks.dump();
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    use rand::Rng;
-    use rand_distr::Zipf;
-
-    struct TestObject {
-        val: usize,
-        _dummy: [u8; BLOCK_SIZE / 4],
-    }
-
-    struct TestObjectSlab<'a>(SlabDesc, BlockAllocator<'a>);
-    impl<'a> TestObjectSlab<'a> {
-        fn new(block_allocator: BlockAllocator) -> TestObjectSlab {
-            TestObjectSlab(SlabDesc::new(&Layout::new::<TestObject>()), block_allocator)
-        }
-
-        fn alloc(&self, val: usize) -> *mut TestObject {
-            let obj: *mut TestObject = self.0.alloc_chunk(&self.1).cast();
-            unsafe { (*obj).val = val };
-            obj
-        }
-
-        fn dealloc(&self, obj: *mut TestObject) {
-            self.0.dealloc_chunk(obj.cast(), &self.1)
-        }
-    }
-
-    #[test]
-    fn test_slab_alloc() {
-        const MEM_SIZE: usize = 100000000;
-        let mut area = Box::new_uninit_slice(MEM_SIZE);
-        let block_allocator = BlockAllocator::new(&mut area);
-
-        let slab = TestObjectSlab::new(block_allocator);
-
-        let mut all: Vec<*mut TestObject> = Vec::new();
-        for i in 0..11 {
-            all.push(slab.alloc(i));
-        }
-        for i in 0..11 {
-            assert!(unsafe { (*all[i]).val == i });
-        }
-
-        let distribution = Zipf::new(10 as f64, 1.1).unwrap();
-        let mut rng = rand::rng();
-        for _ in 0..100000 {
-            slab.0.dump();
-            let idx = (rng.sample(distribution) as usize).into();
-            let ptr: *mut TestObject = all[idx];
-            if !ptr.is_null() {
-                assert_eq!(unsafe { (*ptr).val }, idx);
-                slab.dealloc(ptr);
-                all[idx] = std::ptr::null_mut();
-            } else {
-                all[idx] = slab.alloc(idx);
-            }
-        }
-    }
-
-    fn new_test_blk(i: u32) -> *mut SlabBlockHeader {
-        Box::into_raw(Box::new(SlabBlockHeader {
-            free_chunks_head: spin::Mutex::new(std::ptr::null_mut()),
-            num_free_chunks: AtomicU32::new(0),
-            num_chunks: i,
-            prev: std::ptr::null_mut(),
-            next: std::ptr::null_mut(),
-        }))
-    }
-
-    #[test]
-    fn test_block_linked_list() {
-        // note: these are leaked, but that's OK for tests
-        let a = new_test_blk(0);
-        let b = new_test_blk(1);
-
-        let mut list = BlockList::default();
-        assert!(list.is_empty());
-
-        unsafe {
-            list.push_head(a);
-            assert!(!list.is_empty());
-            list.unlink(a);
-        }
-        assert!(list.is_empty());
-
-        unsafe {
-            list.push_head(b);
-            list.push_head(a);
-            assert_eq!(list.head, a);
-            assert_eq!((*a).next, b);
-            assert_eq!((*b).prev, a);
-            assert_eq!(list.tail, b);
-
-            list.unlink(a);
-            list.unlink(b);
-            assert!(list.is_empty());
-        }
-    }
-}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Conrad Ludgate	9041907019	rewrite with custom json serializer	2025-05-18 13:41:43 +02:00
Conrad Ludgate	53fdcd252f	remove locking from extract, use refcell instead	2025-05-17 22:14:26 +02:00
Conrad Ludgate	f5c5b99b58	remove lasso from json logger, use field index for lookup	2025-05-17 22:14:26 +02:00
Conrad Ludgate	ac331090bf	refactor json logging state	2025-05-17 22:14:26 +02:00
Conrad Ludgate	176b5a8978	replace indexset with lasso and linear search	2025-05-17 22:14:26 +02:00
Conrad Ludgate	e0da7dd8e9	use faster hasher than siphash	2025-05-17 22:14:26 +02:00
Conrad Ludgate	547fe38abf	replace papaya with hashmap+lock. this assumes that spans are rarely accessed in parallel	2025-05-17 22:14:26 +02:00
Conrad Ludgate	c06f9635f5	remove tracing instrument on passthrough	2025-05-17 22:14:26 +02:00
				`@@ -1 +0,0 @@`
				`pub const PGBOUNCER_PIDFILE: &str = "/tmp/pgbouncer.pid";`