Single click pg_upgrade RFC

Remove unused cleanup_remaining_timeline_fs_traces function
There's some more code that still checks for uninit and delete markers, see callers of is_delete_mark and is_uninit_mark, and github issue #5718. But these functions were outright dead.
2026-07-13 17:10:39 +00:00 · 2024-09-19 14:14:06 +01:00 · 2024-09-19 11:57:10 +03:00 · 2024-09-19 11:57:10 +03:00 · 2024-09-19 11:57:10 +03:00 · 2024-09-19 11:57:10 +03:00
157 changed files with 4531 additions and 2058 deletions
--- a/.github/workflows/_build-and-test-locally.yml
+++ b/.github/workflows/_build-and-test-locally.yml
@@ -62,7 +62,7 @@ jobs:
          #
          git config --global --add safe.directory ${{ github.workspace }}
          git config --global --add safe.directory ${GITHUB_WORKSPACE}
-          for r in 14 15 16; do
+          for r in 14 15 16 17; do
            git config --global --add safe.directory "${{ github.workspace }}/vendor/postgres-v$r"
            git config --global --add safe.directory "${GITHUB_WORKSPACE}/vendor/postgres-v$r"
          done
@@ -83,6 +83,10 @@ jobs:
        id: pg_v16_rev
        run: echo pg_rev=$(git rev-parse HEAD:vendor/postgres-v16) >> $GITHUB_OUTPUT

+      - name: Set pg 17 revision for caching
+        id: pg_v17_rev
+        run: echo pg_rev=$(git rev-parse HEAD:vendor/postgres-v17) >> $GITHUB_OUTPUT
+
      # Set some environment variables used by all the steps.
      #
      # CARGO_FLAGS is extra options to pass to "cargo build", "cargo test" etc.
@@ -136,6 +140,13 @@ jobs:
          path: pg_install/v16
          key: v1-${{ runner.os }}-${{ runner.arch }}-${{ inputs.build-type }}-pg-${{ steps.pg_v16_rev.outputs.pg_rev }}-${{ hashFiles('Makefile', 'Dockerfile.build-tools') }}

+      - name: Cache postgres v17 build
+        id: cache_pg_17
+        uses: actions/cache@v4
+        with:
+          path: pg_install/v17
+          key: v1-${{ runner.os }}-${{ runner.arch }}-${{ inputs.build-type }}-pg-${{ steps.pg_v17_rev.outputs.pg_rev }}-${{ hashFiles('Makefile', 'Dockerfile.build-tools') }}
+
      - name: Build postgres v14
        if: steps.cache_pg_14.outputs.cache-hit != 'true'
        run: mold -run make postgres-v14 -j$(nproc)
@@ -148,6 +159,10 @@ jobs:
        if: steps.cache_pg_16.outputs.cache-hit != 'true'
        run: mold -run make postgres-v16 -j$(nproc)

+      - name: Build postgres v17
+        if: steps.cache_pg_17.outputs.cache-hit != 'true'
+        run: mold -run make postgres-v17 -j$(nproc)
+
      - name: Build neon extensions
        run: mold -run make neon-pg-ext -j$(nproc)

@@ -210,7 +225,7 @@ jobs:
        run: |
          PQ_LIB_DIR=$(pwd)/pg_install/v16/lib
          export PQ_LIB_DIR
-          LD_LIBRARY_PATH=$(pwd)/pg_install/v16/lib
+          LD_LIBRARY_PATH=$(pwd)/pg_install/v17/lib
          export LD_LIBRARY_PATH

          #nextest does not yet support running doctests
--- a/.github/workflows/_push-to-acr.yml
+++ b/.github/workflows/_push-to-acr.yml
@@ -52,5 +52,5 @@ jobs:
          for image in ${images}; do
            docker buildx imagetools create \
              -t ${{ inputs.registry_name }}.azurecr.io/neondatabase/${image}:${{ inputs.image_tag }} \
-                                        neondatabase/${image}:${{ inputs.image_tag }}
+                                                        neondatabase/${image}:${{ inputs.image_tag }}
          done
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -54,8 +54,8 @@ jobs:
      build-tag: ${{steps.build-tag.outputs.tag}}

    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
+      # Need `fetch-depth: 0` to count the number of commits in the branch
+      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

@@ -211,7 +211,7 @@ jobs:
      build-tag: ${{ needs.tag.outputs.build-tag }}
      build-type: ${{ matrix.build-type }}
      # Run tests on all Postgres versions in release builds and only on the latest version in debug builds
-      pg-versions: ${{ matrix.build-type == 'release' && '["v14", "v15", "v16"]' || '["v16"]' }}
+      pg-versions: ${{ matrix.build-type == 'release' && '["v14", "v15", "v16", "v17"]' || '["v17"]' }}
    secrets: inherit

  # Keep `benchmarks` job outside of `build-and-test-locally` workflow to make job failures non-blocking
@@ -357,6 +357,7 @@ jobs:
            })

  coverage-report:
+    if: ${{ !startsWith(github.ref_name, 'release') }}
    needs: [ check-permissions, build-build-tools-image, build-and-test-locally ]
    runs-on: [ self-hosted, small ]
    container:
@@ -373,8 +374,8 @@ jobs:
        coverage-html: ${{ steps.upload-coverage-report-new.outputs.report-url }}
        coverage-json: ${{ steps.upload-coverage-report-new.outputs.summary-json }}
    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
+      # Need `fetch-depth: 0` for differential coverage (to get diff between two commits)
+      - uses: actions/checkout@v4
        with:
          submodules: true
          fetch-depth: 0
@@ -475,11 +476,9 @@ jobs:
    runs-on: ${{ fromJson(format('["self-hosted", "{0}"]', matrix.arch == 'arm64' && 'large-arm64' || 'large')) }}

    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
+      - uses: actions/checkout@v4
        with:
          submodules: true
-          fetch-depth: 0

      - uses: ./.github/actions/set-docker-config-dir
      - uses: docker/setup-buildx-action@v3
@@ -548,17 +547,15 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        version: [ v14, v15, v16 ]
+        version: [ v14, v15, v16, v17 ]
        arch: [ x64, arm64 ]

    runs-on: ${{ fromJson(format('["self-hosted", "{0}"]', matrix.arch == 'arm64' && 'large-arm64' || 'large')) }}

    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
+      - uses: actions/checkout@v4
        with:
          submodules: true
-          fetch-depth: 0

      - uses: ./.github/actions/set-docker-config-dir
      - uses: docker/setup-buildx-action@v3
@@ -627,7 +624,7 @@ jobs:

      - name: Build compute-tools image
        # compute-tools are Postgres independent, so build it only once
-        if: matrix.version == 'v16'
+        if: matrix.version == 'v17'
        uses: docker/build-push-action@v6
        with:
          target: compute-tools-image
@@ -649,7 +646,7 @@ jobs:

    strategy:
      matrix:
-        version: [ v14, v15, v16 ]
+        version: [ v14, v15, v16, v17 ]

    steps:
      - uses: docker/login-action@v3
@@ -671,7 +668,7 @@ jobs:
                                             neondatabase/neon-test-extensions-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }}-arm64

      - name: Create multi-arch compute-tools image
-        if: matrix.version == 'v16'
+        if: matrix.version == 'v17'
        run: |
          docker buildx imagetools create -t neondatabase/compute-tools:${{ needs.tag.outputs.build-tag }} \
                                             neondatabase/compute-tools:${{ needs.tag.outputs.build-tag }}-x64 \
@@ -689,7 +686,7 @@ jobs:
                                                                                neondatabase/compute-node-${{ matrix.version }}:${{ needs.tag.outputs.build-tag }}

      - name: Push multi-arch compute-tools image to ECR
-        if: matrix.version == 'v16'
+        if: matrix.version == 'v17'
        run: |
          docker buildx imagetools create -t 369495373322.dkr.ecr.eu-central-1.amazonaws.com/compute-tools:${{ needs.tag.outputs.build-tag }} \
                                                                                neondatabase/compute-tools:${{ needs.tag.outputs.build-tag }}
@@ -700,15 +697,12 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        version: [ v14, v15, v16 ]
+        version: [ v14, v15, v16, v17 ]
    env:
      VM_BUILDER_VERSION: v0.29.3

    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
+      - uses: actions/checkout@v4

      - name: Downloading vm-builder
        run: |
@@ -748,10 +742,7 @@ jobs:
    runs-on: ${{ fromJson(format('["self-hosted", "{0}"]', matrix.arch == 'arm64' && 'small-arm64' || 'small')) }}

    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
+      - uses: actions/checkout@v4

      - uses: ./.github/actions/set-docker-config-dir
      - uses: docker/login-action@v3
@@ -798,7 +789,7 @@ jobs:
    runs-on: ubuntu-22.04

    env:
-      VERSIONS: v14 v15 v16
+      VERSIONS: v14 v15 v16 v17

    steps:
      - uses: docker/login-action@v3
@@ -839,7 +830,7 @@ jobs:
            done
          done
          docker buildx imagetools create -t neondatabase/neon-test-extensions-v16:latest \
-                                             neondatabase/neon-test-extensions-v16:${{ needs.tag.outputs.build-tag }}
+                                              neondatabase/neon-test-extensions-v16:${{ needs.tag.outputs.build-tag }}

      - name: Login to prod ECR
        uses: docker/login-action@v3
@@ -852,7 +843,7 @@ jobs:
      - name: Copy all images to prod ECR
        if: github.ref_name == 'release'|| github.ref_name == 'release-proxy'
        run: |
-          for image in neon compute-tools {vm-,}compute-node-{v14,v15,v16}; do
+          for image in neon compute-tools {vm-,}compute-node-{v14,v15,v16,v17}; do
            docker buildx imagetools create -t 093970136003.dkr.ecr.eu-central-1.amazonaws.com/${image}:${{ needs.tag.outputs.build-tag }} \
                                               369495373322.dkr.ecr.eu-central-1.amazonaws.com/${image}:${{ needs.tag.outputs.build-tag }}
          done
@@ -864,7 +855,7 @@ jobs:
    with:
      client_id: ${{ vars.AZURE_DEV_CLIENT_ID }}
      image_tag: ${{ needs.tag.outputs.build-tag }}
-      images: neon compute-tools vm-compute-node-v14 vm-compute-node-v15 vm-compute-node-v16 compute-node-v14 compute-node-v15 compute-node-v16
+      images: neon compute-tools vm-compute-node-v14 vm-compute-node-v15 vm-compute-node-v16 vm-compute-node-v17 compute-node-v14 compute-node-v15 compute-node-v16 compute-node-v17
      registry_name: ${{ vars.AZURE_DEV_REGISTRY_NAME }}
      subscription_id: ${{ vars.AZURE_DEV_SUBSCRIPTION_ID }}
      tenant_id: ${{ vars.AZURE_TENANT_ID }}
@@ -876,7 +867,7 @@ jobs:
    with:
      client_id: ${{ vars.AZURE_PROD_CLIENT_ID }}
      image_tag: ${{ needs.tag.outputs.build-tag }}
-      images: neon compute-tools vm-compute-node-v14 vm-compute-node-v15 vm-compute-node-v16 compute-node-v14 compute-node-v15 compute-node-v16
+      images: neon compute-tools vm-compute-node-v14 vm-compute-node-v15 vm-compute-node-v16 vm-compute-node-v17 compute-node-v14 compute-node-v15 compute-node-v16 compute-node-v17
      registry_name: ${{ vars.AZURE_PROD_REGISTRY_NAME }}
      subscription_id: ${{ vars.AZURE_PROD_SUBSCRIPTION_ID }}
      tenant_id: ${{ vars.AZURE_TENANT_ID }}
@@ -957,6 +948,7 @@ jobs:

  deploy:
    needs: [ check-permissions, promote-images, tag, build-and-test-locally, trigger-custom-extensions-build-and-wait, push-to-acr-dev, push-to-acr-prod ]
+    # `!failure() && !cancelled()` is required because the workflow depends on the job that can be skipped: `push-to-acr-dev` and `push-to-acr-prod`
    if: (github.ref_name == 'main' || github.ref_name == 'release' || github.ref_name == 'release-proxy') && !failure() && !cancelled()

    runs-on: [ self-hosted, small ]
@@ -971,15 +963,12 @@ jobs:
          #
          git config --global --add safe.directory ${{ github.workspace }}
          git config --global --add safe.directory ${GITHUB_WORKSPACE}
-          for r in 14 15 16; do
+          for r in 14 15 16 17; do
            git config --global --add safe.directory "${{ github.workspace }}/vendor/postgres-v$r"
            git config --global --add safe.directory "${GITHUB_WORKSPACE}/vendor/postgres-v$r"
          done

-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
+      - uses: actions/checkout@v4

      - name: Trigger deploy workflow
        env:
@@ -1058,7 +1047,8 @@ jobs:
  # The job runs on `release` branch and copies compatibility data and Neon artifact from the last *release PR* to the latest directory
  promote-compatibility-data:
    needs: [ deploy ]
-    if: github.ref_name == 'release'
+    # `!failure() && !cancelled()` is required because the workflow transitively depends on the job that can be skipped: `push-to-acr-dev` and `push-to-acr-prod`
+    if: github.ref_name == 'release' && !failure() && !cancelled()

    runs-on: ubuntu-22.04
    steps:
@@ -1117,6 +1107,7 @@ jobs:

              files_to_promote+=("s3://${BUCKET}/${s3_key}")

+              # TODO Add v17
              for pg_version in v14 v15 v16; do
                # We run less tests for debug builds, so we don't need to promote them
                if [ "${build_type}" == "debug" ] && { [ "${arch}" == "ARM64" ] || [ "${pg_version}" != "v16" ] ; }; then
--- a/.github/workflows/neon_extra_builds.yml
+++ b/.github/workflows/neon_extra_builds.yml
@@ -72,6 +72,10 @@ jobs:
        id: pg_v16_rev
        run: echo pg_rev=$(git rev-parse HEAD:vendor/postgres-v16) >> $GITHUB_OUTPUT

+      - name: Set pg 17 revision for caching
+        id: pg_v17_rev
+        run: echo pg_rev=$(git rev-parse HEAD:vendor/postgres-v17) >> $GITHUB_OUTPUT
+
      - name: Cache postgres v14 build
        id: cache_pg_14
        uses: actions/cache@v4
@@ -93,6 +97,13 @@ jobs:
          path: pg_install/v16
          key: v1-${{ runner.os }}-${{ runner.arch }}-${{ env.BUILD_TYPE }}-pg-${{ steps.pg_v16_rev.outputs.pg_rev }}-${{ hashFiles('Makefile') }}

+      - name: Cache postgres v17 build
+        id: cache_pg_17
+        uses: actions/cache@v4
+        with:
+          path: pg_install/v17
+          key: v1-${{ runner.os }}-${{ runner.arch }}-${{ env.BUILD_TYPE }}-pg-${{ steps.pg_v17_rev.outputs.pg_rev }}-${{ hashFiles('Makefile') }}
+
      - name: Set extra env for macOS
        run: |
          echo 'LDFLAGS=-L/usr/local/opt/openssl@3/lib' >> $GITHUB_ENV
@@ -120,6 +131,10 @@ jobs:
        if: steps.cache_pg_16.outputs.cache-hit != 'true'
        run: make postgres-v16 -j$(sysctl -n hw.ncpu)

+      - name: Build postgres v17
+        if: steps.cache_pg_17.outputs.cache-hit != 'true'
+        run: make postgres-v17 -j$(sysctl -n hw.ncpu)
+
      - name: Build neon extensions
        run: make neon-pg-ext -j$(sysctl -n hw.ncpu)

@@ -166,7 +181,7 @@ jobs:
        run: make walproposer-lib -j$(nproc)

      - name: Produce the build stats
-        run: PQ_LIB_DIR=$(pwd)/pg_install/v16/lib cargo build --all --release --timings -j$(nproc)
+        run: PQ_LIB_DIR=$(pwd)/pg_install/v17/lib cargo build --all --release --timings -j$(nproc)

      - name: Upload the build stats
        id: upload-stats
--- a/.github/workflows/trigger-e2e-tests.yml
+++ b/.github/workflows/trigger-e2e-tests.yml
@@ -34,8 +34,8 @@ jobs:
      build-tag: ${{ steps.build-tag.outputs.tag }}

    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
+      # Need `fetch-depth: 0` to count the number of commits in the branch
+      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

--- a/.gitmodules
+++ b/.gitmodules
@@ -10,3 +10,7 @@
 	path = vendor/postgres-v16
 	url = https://github.com/neondatabase/postgres.git
 	branch = REL_16_STABLE_neon
+[submodule "vendor/postgres-v17"]
+	path = vendor/postgres-v17
+	url = https://github.com/neondatabase/postgres.git
+	branch = REL_17_STABLE_neon
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1209,7 +1209,6 @@ dependencies = [
 "remote_storage",
 "serde",
 "serde_json",
- "serde_with",
 "utils",
 ]

@@ -1218,7 +1217,6 @@ name = "compute_tools"
 version = "0.1.0"
 dependencies = [
 "anyhow",
- "async-compression",
 "bytes",
 "cfg-if",
 "chrono",
@@ -1237,7 +1235,6 @@ dependencies = [
 "reqwest 0.12.4",
 "rlimit",
 "rust-ini",
- "serde",
 "serde_json",
 "signal-hook",
 "tar",
@@ -1246,7 +1243,6 @@ dependencies = [
 "tokio-postgres",
 "tokio-stream",
 "tokio-util",
- "toml_edit",
 "tracing",
 "tracing-opentelemetry",
 "tracing-subscriber",
@@ -1317,12 +1313,9 @@ dependencies = [
 name = "consumption_metrics"
 version = "0.1.0"
 dependencies = [
- "anyhow",
 "chrono",
 "rand 0.8.5",
 "serde",
- "serde_with",
- "utils",
 ]

 [[package]]
@@ -1334,9 +1327,7 @@ dependencies = [
 "clap",
 "comfy-table",
 "compute_api",
- "futures",
 "git-version",
- "hex",
 "humantime",
 "humantime-serde",
 "hyper 0.14.26",
@@ -1344,7 +1335,6 @@ dependencies = [
 "once_cell",
 "pageserver_api",
 "pageserver_client",
- "postgres",
 "postgres_backend",
 "postgres_connection",
 "regex",
@@ -1353,9 +1343,7 @@ dependencies = [
 "scopeguard",
 "serde",
 "serde_json",
- "serde_with",
 "storage_broker",
- "tar",
 "thiserror",
 "tokio",
 "tokio-postgres",
@@ -1663,7 +1651,6 @@ dependencies = [
 "hex",
 "parking_lot 0.12.1",
 "rand 0.8.5",
- "scopeguard",
 "smallvec",
 "tracing",
 "utils",
@@ -2233,24 +2220,22 @@ checksum = "4271d37baee1b8c7e4b708028c57d816cf9d2434acb33a549475f78c181f6253"

 [[package]]
 name = "git-version"
-version = "0.3.5"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6b0decc02f4636b9ccad390dcbe77b722a77efedfa393caf8379a51d5c61899"
+checksum = "1ad568aa3db0fcbc81f2f116137f263d7304f512a1209b35b85150d3ef88ad19"
 dependencies = [
 "git-version-macro",
- "proc-macro-hack",
 ]

 [[package]]
 name = "git-version-macro"
-version = "0.3.5"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe69f1cbdb6e28af2bac214e943b99ce8a0a06b447d15d3e61161b0423139f3f"
+checksum = "53010ccb100b96a67bc32c0175f0ed1426b31b655d562898e57325f81c023ac0"
 dependencies = [
- "proc-macro-hack",
 "proc-macro2",
 "quote",
- "syn 1.0.109",
+ "syn 2.0.52",
 ]

 [[package]]
@@ -2744,19 +2729,6 @@ dependencies = [
 "libc",
 ]

-[[package]]
-name = "inotify"
-version = "0.10.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fdd168d97690d0b8c412d6b6c10360277f4d7ee495c5d0d5d5fe0854923255cc"
-dependencies = [
- "bitflags 1.3.2",
- "futures-core",
- "inotify-sys",
- "libc",
- "tokio",
-]
-
 [[package]]
 name = "inotify-sys"
 version = "0.1.5"
@@ -3251,7 +3223,7 @@ dependencies = [
 "crossbeam-channel",
 "filetime",
 "fsevent-sys",
- "inotify 0.9.6",
+ "inotify",
 "kqueue",
 "libc",
 "log",
@@ -3642,7 +3614,6 @@ name = "pagectl"
 version = "0.1.0"
 dependencies = [
 "anyhow",
- "bytes",
 "camino",
 "clap",
 "git-version",
@@ -3651,7 +3622,6 @@ dependencies = [
 "pageserver_api",
 "postgres_ffi",
 "remote_storage",
- "serde",
 "serde_json",
 "svg_fmt",
 "thiserror",
@@ -3670,7 +3640,6 @@ dependencies = [
 "arc-swap",
 "async-compression",
 "async-stream",
- "async-trait",
 "bit_field",
 "byteorder",
 "bytes",
@@ -3678,16 +3647,13 @@ dependencies = [
 "camino-tempfile",
 "chrono",
 "clap",
- "const_format",
 "consumption_metrics",
 "crc32c",
 "criterion",
- "crossbeam-utils",
 "either",
 "enum-map",
 "enumset",
 "fail",
- "flate2",
 "futures",
 "git-version",
 "hex",
@@ -3726,13 +3692,9 @@ dependencies = [
 "serde_json",
 "serde_path_to_error",
 "serde_with",
- "signal-hook",
- "smallvec",
 "storage_broker",
 "strum",
 "strum_macros",
- "svg_fmt",
- "sync_wrapper",
 "sysinfo",
 "tenant_size_model",
 "thiserror",
@@ -3746,7 +3708,6 @@ dependencies = [
 "tokio-util",
 "toml_edit",
 "tracing",
- "twox-hash",
 "url",
 "utils",
 "walkdir",
@@ -3810,44 +3771,22 @@ name = "pageserver_compaction"
 version = "0.1.0"
 dependencies = [
 "anyhow",
- "async-compression",
 "async-stream",
- "byteorder",
- "bytes",
- "chrono",
 "clap",
- "const_format",
- "consumption_metrics",
 "criterion",
- "crossbeam-utils",
- "either",
- "fail",
- "flate2",
 "futures",
 "git-version",
- "hex",
 "hex-literal",
- "humantime",
- "humantime-serde",
 "itertools 0.10.5",
- "metrics",
 "once_cell",
 "pageserver_api",
 "pin-project-lite",
 "rand 0.8.5",
- "smallvec",
 "svg_fmt",
- "sync_wrapper",
- "thiserror",
 "tokio",
- "tokio-io-timeout",
- "tokio-util",
 "tracing",
- "tracing-error",
 "tracing-subscriber",
- "url",
 "utils",
- "walkdir",
 "workspace_hack",
 ]

@@ -4164,9 +4103,7 @@ name = "postgres_backend"
 version = "0.1.0"
 dependencies = [
 "anyhow",
- "async-trait",
 "bytes",
- "futures",
 "once_cell",
 "pq_proto",
 "rustls 0.22.4",
@@ -4199,16 +4136,13 @@ version = "0.1.0"
 dependencies = [
 "anyhow",
 "bindgen",
- "byteorder",
 "bytes",
 "crc32c",
 "env_logger",
- "hex",
 "log",
 "memoffset 0.8.0",
 "once_cell",
 "postgres",
- "rand 0.8.5",
 "regex",
 "serde",
 "thiserror",
@@ -4243,13 +4177,11 @@ dependencies = [
 "byteorder",
 "bytes",
 "itertools 0.10.5",
- "pin-project-lite",
 "postgres-protocol",
 "rand 0.8.5",
 "serde",
 "thiserror",
 "tokio",
- "tracing",
 ]

 [[package]]
@@ -4281,12 +4213,6 @@ dependencies = [
 "elliptic-curve 0.13.8",
 ]

-[[package]]
-name = "proc-macro-hack"
-version = "0.5.20+deprecated"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc375e1527247fe1a97d8b7156678dfe7c1af2fc075c9a4db3690ecd2a148068"
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.78"
@@ -4405,7 +4331,6 @@ dependencies = [
 "aws-config",
 "aws-sdk-iam",
 "aws-sigv4",
- "aws-types",
 "base64 0.13.1",
 "bstr",
 "bytes",
@@ -4414,7 +4339,6 @@ dependencies = [
 "chrono",
 "clap",
 "consumption_metrics",
- "crossbeam-deque",
 "dashmap",
 "ecdsa 0.16.9",
 "env_logger",
@@ -4440,11 +4364,9 @@ dependencies = [
 "jose-jwa",
 "jose-jwk",
 "lasso",
- "md5",
 "measured",
 "metrics",
 "once_cell",
- "opentelemetry",
 "p256 0.13.2",
 "parking_lot 0.12.1",
 "parquet",
@@ -4465,7 +4387,6 @@ dependencies = [
 "reqwest-middleware",
 "reqwest-retry",
 "reqwest-tracing",
- "routerify",
 "rsa",
 "rstest",
 "rustc-hash",
@@ -4481,7 +4402,6 @@ dependencies = [
 "smol_str",
 "socket2 0.5.5",
 "subtle",
- "task-local-extensions",
 "thiserror",
 "tikv-jemalloc-ctl",
 "tikv-jemallocator",
@@ -4491,7 +4411,6 @@ dependencies = [
 "tokio-rustls 0.25.0",
 "tokio-tungstenite",
 "tokio-util",
- "tower-service",
 "tracing",
 "tracing-opentelemetry",
 "tracing-subscriber",
@@ -4781,7 +4700,6 @@ dependencies = [
 "async-stream",
 "async-trait",
 "aws-config",
- "aws-credential-types",
 "aws-sdk-s3",
 "aws-smithy-async",
 "aws-smithy-types",
@@ -4795,7 +4713,6 @@ dependencies = [
 "futures",
 "futures-util",
 "http-types",
- "humantime",
 "humantime-serde",
 "hyper 0.14.26",
 "itertools 0.10.5",
@@ -5275,14 +5192,12 @@ version = "0.1.0"
 dependencies = [
 "anyhow",
 "async-stream",
- "async-trait",
 "byteorder",
 "bytes",
 "camino",
 "camino-tempfile",
 "chrono",
 "clap",
- "const_format",
 "crc32c",
 "desim",
 "fail",
@@ -5308,9 +5223,7 @@ dependencies = [
 "sd-notify",
 "serde",
 "serde_json",
- "serde_with",
 "sha2",
- "signal-hook",
 "storage_broker",
 "strum",
 "strum_macros",
@@ -5321,7 +5234,6 @@ dependencies = [
 "tokio-stream",
 "tokio-tar",
 "tokio-util",
- "toml_edit",
 "tracing",
 "tracing-subscriber",
 "url",
@@ -5336,7 +5248,6 @@ version = "0.1.0"
 dependencies = [
 "const_format",
 "serde",
- "serde_with",
 "utils",
 ]

@@ -5865,7 +5776,6 @@ version = "0.1.0"
 dependencies = [
 "anyhow",
 "async-stream",
- "bytes",
 "clap",
 "const_format",
 "futures",
@@ -5879,7 +5789,6 @@ dependencies = [
 "parking_lot 0.12.1",
 "prost",
 "tokio",
- "tokio-stream",
 "tonic",
 "tonic-build",
 "tracing",
@@ -5892,9 +5801,7 @@ name = "storage_controller"
 version = "0.1.0"
 dependencies = [
 "anyhow",
- "aws-config",
 "bytes",
- "camino",
 "chrono",
 "clap",
 "control_plane",
@@ -5935,20 +5842,9 @@ dependencies = [
 name = "storage_controller_client"
 version = "0.1.0"
 dependencies = [
- "anyhow",
- "bytes",
- "futures",
- "pageserver_api",
 "pageserver_client",
- "postgres",
 "reqwest 0.12.4",
 "serde",
- "thiserror",
- "tokio",
- "tokio-postgres",
- "tokio-stream",
- "tokio-util",
- "utils",
 "workspace_hack",
 ]

@@ -5960,13 +5856,9 @@ dependencies = [
 "async-stream",
 "aws-config",
 "aws-sdk-s3",
- "aws-smithy-async",
- "bincode",
- "bytes",
 "camino",
 "chrono",
 "clap",
- "crc32c",
 "either",
 "futures",
 "futures-util",
@@ -5978,20 +5870,16 @@ dependencies = [
 "pageserver",
 "pageserver_api",
 "postgres_ffi",
- "rand 0.8.5",
 "remote_storage",
 "reqwest 0.12.4",
 "rustls 0.22.4",
 "rustls-native-certs 0.7.0",
 "serde",
 "serde_json",
- "serde_with",
 "storage_controller_client",
- "thiserror",
 "tokio",
 "tokio-postgres",
 "tokio-postgres-rustls",
- "tokio-rustls 0.25.0",
 "tokio-stream",
 "tokio-util",
 "tracing",
@@ -6010,14 +5898,11 @@ dependencies = [
 "comfy-table",
 "futures",
 "humantime",
- "hyper 0.14.26",
 "pageserver_api",
 "pageserver_client",
 "reqwest 0.12.4",
- "serde",
 "serde_json",
 "storage_controller_client",
- "thiserror",
 "tokio",
 "tracing",
 "utils",
@@ -6140,15 +6025,6 @@ dependencies = [
 "xattr",
 ]

-[[package]]
-name = "task-local-extensions"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba323866e5d033818e3240feeb9f7db2c4296674e4d9e16b97b7bf8f490434e8"
-dependencies = [
- "pin-utils",
-]
-
 [[package]]
 name = "tempfile"
 version = "3.9.0"
@@ -6739,7 +6615,6 @@ dependencies = [
 "opentelemetry",
 "opentelemetry-otlp",
 "opentelemetry-semantic-conventions",
- "reqwest 0.12.4",
 "tokio",
 "tracing",
 "tracing-opentelemetry",
@@ -6943,7 +6818,6 @@ dependencies = [
 "serde_assert",
 "serde_json",
 "serde_path_to_error",
- "serde_with",
 "signal-hook",
 "strum",
 "strum_macros",
@@ -6999,13 +6873,11 @@ dependencies = [
 "cgroups-rs",
 "clap",
 "futures",
- "inotify 0.10.2",
 "serde",
 "serde_json",
 "sysinfo",
 "tokio",
 "tokio-postgres",
- "tokio-stream",
 "tokio-util",
 "tracing",
 "tracing-subscriber",
@@ -7032,7 +6904,6 @@ dependencies = [
 "clap",
 "env_logger",
 "log",
- "once_cell",
 "postgres",
 "postgres_ffi",
 "regex",
@@ -7555,6 +7426,7 @@ dependencies = [
 "digest",
 "either",
 "fail",
+ "futures",
 "futures-channel",
 "futures-executor",
 "futures-io",
@@ -7610,6 +7482,8 @@ dependencies = [
 "tower",
 "tracing",
 "tracing-core",
+ "tracing-log",
+ "tracing-subscriber",
 "url",
 "uuid",
 "zeroize",
--- a/12
+++ b/12
@@ -5,6 +5,8 @@
 ARG REPOSITORY=neondatabase
 ARG IMAGE=build-tools
 ARG TAG=pinned
+ARG DEFAULT_PG_VERSION=17
+ARG STABLE_PG_VERSION=16

 # Build Postgres
 FROM $REPOSITORY/$IMAGE:$TAG AS pg-build
@@ -13,6 +15,7 @@ WORKDIR /home/nonroot
 COPY --chown=nonroot vendor/postgres-v14 vendor/postgres-v14
 COPY --chown=nonroot vendor/postgres-v15 vendor/postgres-v15
 COPY --chown=nonroot vendor/postgres-v16 vendor/postgres-v16
+COPY --chown=nonroot vendor/postgres-v17 vendor/postgres-v17
 COPY --chown=nonroot pgxn pgxn
 COPY --chown=nonroot Makefile Makefile
 COPY --chown=nonroot scripts/ninstall.sh scripts/ninstall.sh
@@ -28,16 +31,19 @@ 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 --chown=nonroot . .

 ARG ADDITIONAL_RUSTFLAGS
 RUN set -e \
-    && PQ_LIB_DIR=$(pwd)/pg_install/v16/lib RUSTFLAGS="-Clinker=clang -Clink-arg=-fuse-ld=mold -Clink-arg=-Wl,--no-rosegment ${ADDITIONAL_RUSTFLAGS}" cargo build \
+    && PQ_LIB_DIR=$(pwd)/pg_install/v${STABLE_PG_VERSION}/lib RUSTFLAGS="-Clinker=clang -Clink-arg=-fuse-ld=mold -Clink-arg=-Wl,--no-rosegment ${ADDITIONAL_RUSTFLAGS}" cargo build \
      --bin pg_sni_router  \
      --bin pageserver  \
      --bin pagectl  \
@@ -52,6 +58,7 @@ RUN set -e \
 # Build final image
 #
 FROM debian:bullseye-slim
+ARG DEFAULT_PG_VERSION
 WORKDIR /data

 RUN set -e \
@@ -77,6 +84,7 @@ COPY --from=build --chown=neon:neon /home/nonroot/target/release/storage_scrubbe
 COPY --from=pg-build /home/nonroot/pg_install/v14 /usr/local/v14/
 COPY --from=pg-build /home/nonroot/pg_install/v15 /usr/local/v15/
 COPY --from=pg-build /home/nonroot/pg_install/v16 /usr/local/v16/
+COPY --from=pg-build /home/nonroot/pg_install/v17 /usr/local/v17/
 COPY --from=pg-build /home/nonroot/postgres_install.tar.gz /data/

 # By default, pageserver uses `.neon/` working directory in WORKDIR, so create one and fill it with the dummy config.
@@ -93,7 +101,7 @@ RUN mkdir -p /data/.neon/ && \

 # When running a binary that links with libpq, default to using our most recent postgres version.  Binaries
 # that want a particular postgres version will select it explicitly: this is just a default.
-ENV LD_LIBRARY_PATH=/usr/local/v16/lib
+ENV LD_LIBRARY_PATH=/usr/local/v${DEFAULT_PG_VERSION}/lib


 VOLUME ["/data"]
--- a/Dockerfile.compute-node
+++ b/Dockerfile.compute-node
@@ -55,22 +55,27 @@ RUN cd postgres && \
    # We could add the additional grant statements to the postgres repository but it would be hard to maintain,
    # whenever we need to pick up a new postgres version and we want to limit the changes in our postgres fork,
    # so we do it here.
-    old_list="pg_stat_statements--1.0--1.1.sql pg_stat_statements--1.1--1.2.sql pg_stat_statements--1.2--1.3.sql pg_stat_statements--1.3--1.4.sql pg_stat_statements--1.4--1.5.sql pg_stat_statements--1.4.sql pg_stat_statements--1.5--1.6.sql"; \
-    # the first loop is for pg_stat_statement extension version <= 1.6
    for file in /usr/local/pgsql/share/extension/pg_stat_statements--*.sql; do \
        filename=$(basename "$file"); \
-        if echo "$old_list" | grep -q -F "$filename"; then \
+        # Note that there are no downgrade scripts for pg_stat_statements, so we \
+        # don't have to modify any downgrade paths or (much) older versions: we only \
+        # have to make sure every creation of the pg_stat_statements_reset function \
+        # also adds execute permissions to the neon_superuser.
+        case $filename in \
+          pg_stat_statements--1.4.sql) \
+            # pg_stat_statements_reset is first created with 1.4
            echo 'GRANT EXECUTE ON FUNCTION pg_stat_statements_reset() TO neon_superuser;' >> $file; \
-        fi; \
-    done; \
-    # the second loop is for pg_stat_statement extension versions >= 1.7,
-    # where pg_stat_statement_reset() got 3 additional arguments
-    for file in /usr/local/pgsql/share/extension/pg_stat_statements--*.sql; do \
-        filename=$(basename "$file"); \
-        if ! echo "$old_list" | grep -q -F "$filename"; then \
+            ;; \
+          pg_stat_statements--1.6--1.7.sql) \
+            # Then with the 1.6-1.7 migration it is re-created with a new signature, thus add the permissions back
            echo 'GRANT EXECUTE ON FUNCTION pg_stat_statements_reset(Oid, Oid, bigint) TO neon_superuser;' >> $file; \
-        fi; \
-    done
+            ;; \
+          pg_stat_statements--1.10--1.11.sql) \
+            # Then with the 1.10-1.11 migration it is re-created with a new signature again, thus add the permissions back
+            echo 'GRANT EXECUTE ON FUNCTION pg_stat_statements_reset(Oid, Oid, bigint, boolean) TO neon_superuser;' >> $file; \
+            ;; \
+        esac; \
+    done;

 #########################################################################################
 #
@@ -79,6 +84,7 @@ RUN cd postgres && \
 #
 #########################################################################################
 FROM build-deps AS postgis-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/
 RUN apt update && \
    apt install -y cmake gdal-bin libboost-dev libboost-thread-dev libboost-filesystem-dev \
@@ -87,7 +93,11 @@ RUN apt update && \
    protobuf-c-compiler xsltproc

 # SFCGAL > 1.3 requires CGAL > 5.2, Bullseye's libcgal-dev is 5.2
-RUN wget https://gitlab.com/Oslandia/SFCGAL/-/archive/v1.3.10/SFCGAL-v1.3.10.tar.gz -O SFCGAL.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    mkdir -p /sfcgal && \
+    echo "Postgis doensn't yet support PG17 (needs 3.4.3, if not higher)" && exit 0;; \
+    esac && \
+    wget https://gitlab.com/Oslandia/SFCGAL/-/archive/v1.3.10/SFCGAL-v1.3.10.tar.gz -O SFCGAL.tar.gz && \
    echo "4e39b3b2adada6254a7bdba6d297bb28e1a9835a9f879b74f37e2dab70203232 SFCGAL.tar.gz" | sha256sum --check && \
    mkdir sfcgal-src && cd sfcgal-src && tar xzf ../SFCGAL.tar.gz --strip-components=1 -C . && \
    cmake -DCMAKE_BUILD_TYPE=Release . && make -j $(getconf _NPROCESSORS_ONLN) && \
@@ -96,7 +106,10 @@ RUN wget https://gitlab.com/Oslandia/SFCGAL/-/archive/v1.3.10/SFCGAL-v1.3.10.tar

 ENV PATH="/usr/local/pgsql/bin:$PATH"

-RUN wget https://download.osgeo.org/postgis/source/postgis-3.3.3.tar.gz -O postgis.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "Postgis doensn't yet support PG17 (needs 3.4.3, if not higher)" && exit 0;; \
+    esac && \
+    wget https://download.osgeo.org/postgis/source/postgis-3.3.3.tar.gz -O postgis.tar.gz && \
    echo "74eb356e3f85f14233791013360881b6748f78081cc688ff9d6f0f673a762d13 postgis.tar.gz" | sha256sum --check && \
    mkdir postgis-src && cd postgis-src && tar xzf ../postgis.tar.gz --strip-components=1 -C . && \
    find /usr/local/pgsql -type f | sed 's|^/usr/local/pgsql/||' > /before.txt &&\
@@ -122,7 +135,10 @@ RUN wget https://download.osgeo.org/postgis/source/postgis-3.3.3.tar.gz -O postg
    cp /usr/local/pgsql/share/extension/address_standardizer.control /extensions/postgis && \
    cp /usr/local/pgsql/share/extension/address_standardizer_data_us.control /extensions/postgis

-RUN wget https://github.com/pgRouting/pgrouting/archive/v3.4.2.tar.gz -O pgrouting.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/pgRouting/pgrouting/archive/v3.4.2.tar.gz -O pgrouting.tar.gz && \
    echo "cac297c07d34460887c4f3b522b35c470138760fe358e351ad1db4edb6ee306e pgrouting.tar.gz" | sha256sum --check && \
    mkdir pgrouting-src && cd pgrouting-src && tar xzf ../pgrouting.tar.gz --strip-components=1 -C . && \
    mkdir build && cd build && \
@@ -142,12 +158,19 @@ RUN wget https://github.com/pgRouting/pgrouting/archive/v3.4.2.tar.gz -O pgrouti
 #
 #########################################################################################
 FROM build-deps AS plv8-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN apt update && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    apt update && \
    apt install -y ninja-build python3-dev libncurses5 binutils clang

-RUN wget https://github.com/plv8/plv8/archive/refs/tags/v3.1.10.tar.gz -O plv8.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/plv8/plv8/archive/refs/tags/v3.1.10.tar.gz -O plv8.tar.gz && \
    echo "7096c3290928561f0d4901b7a52794295dc47f6303102fae3f8e42dd575ad97d plv8.tar.gz" | sha256sum --check && \
    mkdir plv8-src && cd plv8-src && tar xzf ../plv8.tar.gz --strip-components=1 -C . && \
    # generate and copy upgrade scripts
@@ -172,9 +195,13 @@ RUN wget https://github.com/plv8/plv8/archive/refs/tags/v3.1.10.tar.gz -O plv8.t
 #
 #########################################################################################
 FROM build-deps AS h3-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN case "$(uname -m)" in \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    case "$(uname -m)" in \
      "x86_64") \
        export CMAKE_CHECKSUM=739d372726cb23129d57a539ce1432453448816e345e1545f6127296926b6754 \
        ;; \
@@ -192,7 +219,11 @@ RUN case "$(uname -m)" in \
      && /tmp/cmake-install.sh --skip-license --prefix=/usr/local/ \
      && rm /tmp/cmake-install.sh

-RUN wget https://github.com/uber/h3/archive/refs/tags/v4.1.0.tar.gz -O h3.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+        mkdir -p /h3/usr/ && \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/uber/h3/archive/refs/tags/v4.1.0.tar.gz -O h3.tar.gz && \
    echo "ec99f1f5974846bde64f4513cf8d2ea1b8d172d2218ab41803bf6a63532272bc h3.tar.gz" | sha256sum --check && \
    mkdir h3-src && cd h3-src && tar xzf ../h3.tar.gz --strip-components=1 -C . && \
    mkdir build && cd build && \
@@ -202,7 +233,10 @@ RUN wget https://github.com/uber/h3/archive/refs/tags/v4.1.0.tar.gz -O h3.tar.gz
    cp -R /h3/usr / && \
    rm -rf build

-RUN wget https://github.com/zachasme/h3-pg/archive/refs/tags/v4.1.3.tar.gz -O h3-pg.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/zachasme/h3-pg/archive/refs/tags/v4.1.3.tar.gz -O h3-pg.tar.gz && \
    echo "5c17f09a820859ffe949f847bebf1be98511fb8f1bd86f94932512c00479e324 h3-pg.tar.gz" | sha256sum --check && \
    mkdir h3-pg-src && cd h3-pg-src && tar xzf ../h3-pg.tar.gz --strip-components=1 -C . && \
    export PATH="/usr/local/pgsql/bin:$PATH" && \
@@ -218,9 +252,13 @@ RUN wget https://github.com/zachasme/h3-pg/archive/refs/tags/v4.1.3.tar.gz -O h3
 #
 #########################################################################################
 FROM build-deps AS unit-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN wget https://github.com/df7cb/postgresql-unit/archive/refs/tags/7.7.tar.gz -O postgresql-unit.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/df7cb/postgresql-unit/archive/refs/tags/7.7.tar.gz -O postgresql-unit.tar.gz && \
    echo "411d05beeb97e5a4abf17572bfcfbb5a68d98d1018918feff995f6ee3bb03e79 postgresql-unit.tar.gz" | sha256sum --check && \
    mkdir postgresql-unit-src && cd postgresql-unit-src && tar xzf ../postgresql-unit.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
@@ -239,6 +277,7 @@ RUN wget https://github.com/df7cb/postgresql-unit/archive/refs/tags/7.7.tar.gz -
 #
 #########################################################################################
 FROM build-deps AS vector-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 COPY patches/pgvector.patch /pgvector.patch
@@ -246,7 +285,10 @@ COPY patches/pgvector.patch /pgvector.patch
 # By default, pgvector Makefile uses `-march=native`. We don't want that,
 # because we build the images on different machines than where we run them.
 # Pass OPTFLAGS="" to remove it.
-RUN wget https://github.com/pgvector/pgvector/archive/refs/tags/v0.7.2.tar.gz -O pgvector.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/pgvector/pgvector/archive/refs/tags/v0.7.2.tar.gz -O pgvector.tar.gz && \
    echo "617fba855c9bcb41a2a9bc78a78567fd2e147c72afd5bf9d37b31b9591632b30 pgvector.tar.gz" | sha256sum --check && \
    mkdir pgvector-src && cd pgvector-src && tar xzf ../pgvector.tar.gz --strip-components=1 -C . && \
    patch -p1 < /pgvector.patch && \
@@ -261,10 +303,14 @@ RUN wget https://github.com/pgvector/pgvector/archive/refs/tags/v0.7.2.tar.gz -O
 #
 #########################################################################################
 FROM build-deps AS pgjwt-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 # 9742dab1b2f297ad3811120db7b21451bca2d3c9 made on 13/11/2021
-RUN wget https://github.com/michelp/pgjwt/archive/9742dab1b2f297ad3811120db7b21451bca2d3c9.tar.gz -O pgjwt.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/michelp/pgjwt/archive/9742dab1b2f297ad3811120db7b21451bca2d3c9.tar.gz -O pgjwt.tar.gz && \
    echo "cfdefb15007286f67d3d45510f04a6a7a495004be5b3aecb12cda667e774203f pgjwt.tar.gz" | sha256sum --check && \
    mkdir pgjwt-src && cd pgjwt-src && tar xzf ../pgjwt.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) install PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
@@ -277,9 +323,13 @@ RUN wget https://github.com/michelp/pgjwt/archive/9742dab1b2f297ad3811120db7b214
 #
 #########################################################################################
 FROM build-deps AS hypopg-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN wget https://github.com/HypoPG/hypopg/archive/refs/tags/1.4.0.tar.gz -O hypopg.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/HypoPG/hypopg/archive/refs/tags/1.4.0.tar.gz -O hypopg.tar.gz && \
    echo "0821011743083226fc9b813c1f2ef5897a91901b57b6bea85a78e466187c6819 hypopg.tar.gz" | sha256sum --check && \
    mkdir hypopg-src && cd hypopg-src && tar xzf ../hypopg.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
@@ -293,9 +343,13 @@ RUN wget https://github.com/HypoPG/hypopg/archive/refs/tags/1.4.0.tar.gz -O hypo
 #
 #########################################################################################
 FROM build-deps AS pg-hashids-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN wget https://github.com/iCyberon/pg_hashids/archive/refs/tags/v1.2.1.tar.gz -O pg_hashids.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/iCyberon/pg_hashids/archive/refs/tags/v1.2.1.tar.gz -O pg_hashids.tar.gz && \
    echo "74576b992d9277c92196dd8d816baa2cc2d8046fe102f3dcd7f3c3febed6822a pg_hashids.tar.gz" | sha256sum --check && \
    mkdir pg_hashids-src && cd pg_hashids-src && tar xzf ../pg_hashids.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) PG_CONFIG=/usr/local/pgsql/bin/pg_config USE_PGXS=1 && \
@@ -309,11 +363,15 @@ RUN wget https://github.com/iCyberon/pg_hashids/archive/refs/tags/v1.2.1.tar.gz
 #
 #########################################################################################
 FROM build-deps AS rum-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 COPY patches/rum.patch /rum.patch

-RUN wget https://github.com/postgrespro/rum/archive/refs/tags/1.3.13.tar.gz -O rum.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/postgrespro/rum/archive/refs/tags/1.3.13.tar.gz -O rum.tar.gz && \
    echo "6ab370532c965568df6210bd844ac6ba649f53055e48243525b0b7e5c4d69a7d rum.tar.gz" | sha256sum --check && \
    mkdir rum-src && cd rum-src && tar xzf ../rum.tar.gz --strip-components=1 -C . && \
    patch -p1 < /rum.patch && \
@@ -328,9 +386,13 @@ RUN wget https://github.com/postgrespro/rum/archive/refs/tags/1.3.13.tar.gz -O r
 #
 #########################################################################################
 FROM build-deps AS pgtap-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN wget https://github.com/theory/pgtap/archive/refs/tags/v1.2.0.tar.gz -O pgtap.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/theory/pgtap/archive/refs/tags/v1.2.0.tar.gz -O pgtap.tar.gz && \
    echo "9c7c3de67ea41638e14f06da5da57bac6f5bd03fea05c165a0ec862205a5c052 pgtap.tar.gz" | sha256sum --check && \
    mkdir pgtap-src && cd pgtap-src && tar xzf ../pgtap.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
@@ -344,9 +406,13 @@ RUN wget https://github.com/theory/pgtap/archive/refs/tags/v1.2.0.tar.gz -O pgta
 #
 #########################################################################################
 FROM build-deps AS ip4r-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN wget https://github.com/RhodiumToad/ip4r/archive/refs/tags/2.4.2.tar.gz -O ip4r.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/RhodiumToad/ip4r/archive/refs/tags/2.4.2.tar.gz -O ip4r.tar.gz && \
    echo "0f7b1f159974f49a47842a8ab6751aecca1ed1142b6d5e38d81b064b2ead1b4b ip4r.tar.gz" | sha256sum --check && \
    mkdir ip4r-src && cd ip4r-src && tar xzf ../ip4r.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
@@ -360,9 +426,13 @@ RUN wget https://github.com/RhodiumToad/ip4r/archive/refs/tags/2.4.2.tar.gz -O i
 #
 #########################################################################################
 FROM build-deps AS prefix-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN wget https://github.com/dimitri/prefix/archive/refs/tags/v1.2.10.tar.gz -O prefix.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/dimitri/prefix/archive/refs/tags/v1.2.10.tar.gz -O prefix.tar.gz && \
    echo "4342f251432a5f6fb05b8597139d3ccde8dcf87e8ca1498e7ee931ca057a8575 prefix.tar.gz" | sha256sum --check && \
    mkdir prefix-src && cd prefix-src && tar xzf ../prefix.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
@@ -376,9 +446,13 @@ RUN wget https://github.com/dimitri/prefix/archive/refs/tags/v1.2.10.tar.gz -O p
 #
 #########################################################################################
 FROM build-deps AS hll-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN wget https://github.com/citusdata/postgresql-hll/archive/refs/tags/v2.18.tar.gz -O hll.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/citusdata/postgresql-hll/archive/refs/tags/v2.18.tar.gz -O hll.tar.gz && \
    echo "e2f55a6f4c4ab95ee4f1b4a2b73280258c5136b161fe9d059559556079694f0e hll.tar.gz" | sha256sum --check && \
    mkdir hll-src && cd hll-src && tar xzf ../hll.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
@@ -392,9 +466,13 @@ RUN wget https://github.com/citusdata/postgresql-hll/archive/refs/tags/v2.18.tar
 #
 #########################################################################################
 FROM build-deps AS plpgsql-check-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN wget https://github.com/okbob/plpgsql_check/archive/refs/tags/v2.5.3.tar.gz -O plpgsql_check.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/okbob/plpgsql_check/archive/refs/tags/v2.5.3.tar.gz -O plpgsql_check.tar.gz && \
    echo "6631ec3e7fb3769eaaf56e3dfedb829aa761abf163d13dba354b4c218508e1c0 plpgsql_check.tar.gz" | sha256sum --check && \
    mkdir plpgsql_check-src && cd plpgsql_check-src && tar xzf ../plpgsql_check.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) PG_CONFIG=/usr/local/pgsql/bin/pg_config USE_PGXS=1 && \
@@ -413,7 +491,10 @@ COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/
 ARG PG_VERSION
 ENV PATH="/usr/local/pgsql/bin:$PATH"

-RUN case "${PG_VERSION}" in \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    case "${PG_VERSION}" in \
      "v14" | "v15") \
        export TIMESCALEDB_VERSION=2.10.1 \
        export TIMESCALEDB_CHECKSUM=6fca72a6ed0f6d32d2b3523951ede73dc5f9b0077b38450a029a5f411fdb8c73 \
@@ -446,7 +527,10 @@ COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/
 ARG PG_VERSION
 ENV PATH="/usr/local/pgsql/bin:$PATH"

-RUN case "${PG_VERSION}" in \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    case "${PG_VERSION}" in \
      "v14") \
        export PG_HINT_PLAN_VERSION=14_1_4_1 \
        export PG_HINT_PLAN_CHECKSUM=c3501becf70ead27f70626bce80ea401ceac6a77e2083ee5f3ff1f1444ec1ad1 \
@@ -459,6 +543,9 @@ RUN case "${PG_VERSION}" in \
        export PG_HINT_PLAN_VERSION=16_1_6_0 \
        export PG_HINT_PLAN_CHECKSUM=fc85a9212e7d2819d4ae4ac75817481101833c3cfa9f0fe1f980984e12347d00 \
        ;; \
+      "v17") \
+        echo "TODO: PG17 pg_hint_plan support" && exit 0 \
+        ;; \
      *) \
        echo "Export the valid PG_HINT_PLAN_VERSION variable" && exit 1 \
        ;; \
@@ -478,10 +565,14 @@ RUN case "${PG_VERSION}" in \
 #
 #########################################################################################
 FROM build-deps AS pg-cron-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 ENV PATH="/usr/local/pgsql/bin/:$PATH"
-RUN wget https://github.com/citusdata/pg_cron/archive/refs/tags/v1.6.0.tar.gz -O pg_cron.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/citusdata/pg_cron/archive/refs/tags/v1.6.0.tar.gz -O pg_cron.tar.gz && \
    echo "383a627867d730222c272bfd25cd5e151c578d73f696d32910c7db8c665cc7db pg_cron.tar.gz" | sha256sum --check && \
    mkdir pg_cron-src && cd pg_cron-src && tar xzf ../pg_cron.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) && \
@@ -495,9 +586,13 @@ RUN wget https://github.com/citusdata/pg_cron/archive/refs/tags/v1.6.0.tar.gz -O
 #
 #########################################################################################
 FROM build-deps AS rdkit-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

-RUN apt-get update && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    apt-get update && \
    apt-get install -y \
        cmake \
        libboost-iostreams1.74-dev \
@@ -507,7 +602,10 @@ RUN apt-get update && \
        libeigen3-dev

 ENV PATH="/usr/local/pgsql/bin/:/usr/local/pgsql/:$PATH"
-RUN wget https://github.com/rdkit/rdkit/archive/refs/tags/Release_2023_03_3.tar.gz -O rdkit.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/rdkit/rdkit/archive/refs/tags/Release_2023_03_3.tar.gz -O rdkit.tar.gz && \
    echo "bdbf9a2e6988526bfeb8c56ce3cdfe2998d60ac289078e2215374288185e8c8d rdkit.tar.gz" | sha256sum --check && \
    mkdir rdkit-src && cd rdkit-src && tar xzf ../rdkit.tar.gz --strip-components=1 -C . && \
    cmake \
@@ -544,10 +642,14 @@ RUN wget https://github.com/rdkit/rdkit/archive/refs/tags/Release_2023_03_3.tar.
 #
 #########################################################################################
 FROM build-deps AS pg-uuidv7-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 ENV PATH="/usr/local/pgsql/bin/:$PATH"
-RUN wget https://github.com/fboulnois/pg_uuidv7/archive/refs/tags/v1.0.1.tar.gz -O pg_uuidv7.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/fboulnois/pg_uuidv7/archive/refs/tags/v1.0.1.tar.gz -O pg_uuidv7.tar.gz && \
    echo "0d0759ab01b7fb23851ecffb0bce27822e1868a4a5819bfd276101c716637a7a pg_uuidv7.tar.gz" | sha256sum --check && \
    mkdir pg_uuidv7-src && cd pg_uuidv7-src && tar xzf ../pg_uuidv7.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) && \
@@ -561,10 +663,14 @@ RUN wget https://github.com/fboulnois/pg_uuidv7/archive/refs/tags/v1.0.1.tar.gz
 #
 #########################################################################################
 FROM build-deps AS pg-roaringbitmap-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 ENV PATH="/usr/local/pgsql/bin/:$PATH"
-RUN wget https://github.com/ChenHuajun/pg_roaringbitmap/archive/refs/tags/v0.5.4.tar.gz -O pg_roaringbitmap.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions is not supported yet by pg_roaringbitmap. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/ChenHuajun/pg_roaringbitmap/archive/refs/tags/v0.5.4.tar.gz -O pg_roaringbitmap.tar.gz && \
    echo "b75201efcb1c2d1b014ec4ae6a22769cc7a224e6e406a587f5784a37b6b5a2aa pg_roaringbitmap.tar.gz" | sha256sum --check && \
    mkdir pg_roaringbitmap-src && cd pg_roaringbitmap-src && tar xzf ../pg_roaringbitmap.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) && \
@@ -578,10 +684,14 @@ RUN wget https://github.com/ChenHuajun/pg_roaringbitmap/archive/refs/tags/v0.5.4
 #
 #########################################################################################
 FROM build-deps AS pg-semver-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 ENV PATH="/usr/local/pgsql/bin/:$PATH"
-RUN wget https://github.com/theory/pg-semver/archive/refs/tags/v0.32.1.tar.gz -O pg_semver.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 is not supported yet by pg_semver. Quit" && exit 0;; \
+    esac && \
+    wget https://github.com/theory/pg-semver/archive/refs/tags/v0.32.1.tar.gz -O pg_semver.tar.gz && \
    echo "fbdaf7512026d62eec03fad8687c15ed509b6ba395bff140acd63d2e4fbe25d7 pg_semver.tar.gz" | sha256sum --check && \
    mkdir pg_semver-src && cd pg_semver-src && tar xzf ../pg_semver.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) && \
@@ -620,10 +730,14 @@ RUN case "${PG_VERSION}" in \
 #
 #########################################################################################
 FROM build-deps AS pg-anon-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 ENV PATH="/usr/local/pgsql/bin/:$PATH"
-RUN wget  https://github.com/neondatabase/postgresql_anonymizer/archive/refs/tags/neon_1.1.1.tar.gz -O pg_anon.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "postgresql_anonymizer does not yet support PG17" && exit 0;; \
+    esac && \
+    wget  https://github.com/neondatabase/postgresql_anonymizer/archive/refs/tags/neon_1.1.1.tar.gz -O pg_anon.tar.gz && \
    echo "321ea8d5c1648880aafde850a2c576e4a9e7b9933a34ce272efc839328999fa9  pg_anon.tar.gz" | sha256sum --check && \
    mkdir pg_anon-src && cd pg_anon-src && tar xzf ../pg_anon.tar.gz --strip-components=1 -C . && \
    find /usr/local/pgsql -type f | sed 's|^/usr/local/pgsql/||' > /before.txt &&\
@@ -641,6 +755,7 @@ RUN wget  https://github.com/neondatabase/postgresql_anonymizer/archive/refs/tag
 #
 #########################################################################################
 FROM build-deps AS rust-extensions-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 RUN apt-get update && \
@@ -651,9 +766,11 @@ ENV HOME=/home/nonroot
 ENV PATH="/home/nonroot/.cargo/bin:/usr/local/pgsql/bin/:$PATH"
 USER nonroot
 WORKDIR /home/nonroot
-ARG PG_VERSION

-RUN curl -sSO https://static.rust-lang.org/rustup/dist/$(uname -m)-unknown-linux-gnu/rustup-init && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 is not supported yet by pgrx. Quit" && exit 0;; \
+    esac && \
+    curl -sSO https://static.rust-lang.org/rustup/dist/$(uname -m)-unknown-linux-gnu/rustup-init && \
    chmod +x rustup-init && \
    ./rustup-init -y --no-modify-path --profile minimal --default-toolchain stable && \
    rm rustup-init && \
@@ -672,7 +789,10 @@ USER root
 FROM rust-extensions-build AS pg-jsonschema-pg-build
 ARG PG_VERSION

-RUN wget https://github.com/supabase/pg_jsonschema/archive/refs/tags/v0.3.1.tar.gz -O pg_jsonschema.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "pg_jsonschema does not yet have a release that supports pg17" && exit 0;; \
+    esac && \
+    wget https://github.com/supabase/pg_jsonschema/archive/refs/tags/v0.3.1.tar.gz -O pg_jsonschema.tar.gz && \
    echo "61df3db1ed83cf24f6aa39c826f8818bfa4f0bd33b587fd6b2b1747985642297 pg_jsonschema.tar.gz" | sha256sum --check && \
    mkdir pg_jsonschema-src && cd pg_jsonschema-src && tar xzf ../pg_jsonschema.tar.gz --strip-components=1 -C . && \
    # see commit 252b3685a27a0f4c31a0f91e983c6314838e89e8
@@ -694,7 +814,10 @@ RUN wget https://github.com/supabase/pg_jsonschema/archive/refs/tags/v0.3.1.tar.
 FROM rust-extensions-build AS pg-graphql-pg-build
 ARG PG_VERSION

-RUN wget https://github.com/supabase/pg_graphql/archive/refs/tags/v1.5.7.tar.gz -O pg_graphql.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "pg_graphql does not yet have a release that supports pg17 as of now" && exit 0;; \
+    esac && \
+    wget https://github.com/supabase/pg_graphql/archive/refs/tags/v1.5.7.tar.gz -O pg_graphql.tar.gz && \
    echo "2b3e567a5b31019cb97ae0e33263c1bcc28580be5a444ac4c8ece5c4be2aea41 pg_graphql.tar.gz" | sha256sum --check && \
    mkdir pg_graphql-src && cd pg_graphql-src && tar xzf ../pg_graphql.tar.gz --strip-components=1 -C . && \
    sed -i 's/pgrx = "=0.11.3"/pgrx = { version = "0.11.3", features = [ "unsafe-postgres" ] }/g' Cargo.toml && \
@@ -714,7 +837,10 @@ FROM rust-extensions-build AS pg-tiktoken-pg-build
 ARG PG_VERSION

 # 26806147b17b60763039c6a6878884c41a262318 made on 26/09/2023
-RUN wget https://github.com/kelvich/pg_tiktoken/archive/26806147b17b60763039c6a6878884c41a262318.tar.gz -O pg_tiktoken.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "pg_tiktoken does not have versions, nor support for pg17" && exit 0;; \
+    esac && \
+    wget https://github.com/kelvich/pg_tiktoken/archive/26806147b17b60763039c6a6878884c41a262318.tar.gz -O pg_tiktoken.tar.gz && \
    echo "e64e55aaa38c259512d3e27c572da22c4637418cf124caba904cd50944e5004e pg_tiktoken.tar.gz" | sha256sum --check && \
    mkdir pg_tiktoken-src && cd pg_tiktoken-src && tar xzf ../pg_tiktoken.tar.gz --strip-components=1 -C . && \
    # TODO update pgrx version in the pg_tiktoken repo and remove this line
@@ -733,7 +859,10 @@ RUN wget https://github.com/kelvich/pg_tiktoken/archive/26806147b17b60763039c6a6
 FROM rust-extensions-build AS pg-pgx-ulid-build
 ARG PG_VERSION

-RUN wget https://github.com/pksunkara/pgx_ulid/archive/refs/tags/v0.1.5.tar.gz -O pgx_ulid.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "pgx_ulid does not support pg17 as of the latest version (0.1.5)" && exit 0;; \
+    esac && \
+    wget https://github.com/pksunkara/pgx_ulid/archive/refs/tags/v0.1.5.tar.gz -O pgx_ulid.tar.gz && \
    echo "9d1659a2da65af0133d5451c454de31b37364e3502087dadf579f790bc8bef17 pgx_ulid.tar.gz" | sha256sum --check && \
    mkdir pgx_ulid-src && cd pgx_ulid-src && tar xzf ../pgx_ulid.tar.gz --strip-components=1 -C . && \
    sed -i 's/pgrx       = "^0.11.2"/pgrx = { version = "=0.11.3", features = [ "unsafe-postgres" ] }/g' Cargo.toml && \
@@ -748,10 +877,14 @@ RUN wget https://github.com/pksunkara/pgx_ulid/archive/refs/tags/v0.1.5.tar.gz -
 #########################################################################################

 FROM build-deps AS wal2json-pg-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 ENV PATH="/usr/local/pgsql/bin/:$PATH"
-RUN wget https://github.com/eulerto/wal2json/archive/refs/tags/wal2json_2_5.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "We'll need to update wal2json to 2.6+ for pg17 support" && exit 0;; \
+    esac && \
+    wget https://github.com/eulerto/wal2json/archive/refs/tags/wal2json_2_5.tar.gz && \
    echo "b516653575541cf221b99cf3f8be9b6821f6dbcfc125675c85f35090f824f00e wal2json_2_5.tar.gz" | sha256sum --check && \
    mkdir wal2json-src && cd wal2json-src && tar xzf ../wal2json_2_5.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) && \
@@ -764,10 +897,14 @@ RUN wget https://github.com/eulerto/wal2json/archive/refs/tags/wal2json_2_5.tar.
 #
 #########################################################################################
 FROM build-deps AS pg-ivm-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 ENV PATH="/usr/local/pgsql/bin/:$PATH"
-RUN wget https://github.com/sraoss/pg_ivm/archive/refs/tags/v1.7.tar.gz -O pg_ivm.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "We'll need to update pg_ivm to 1.9+ for pg17 support" && exit 0;; \
+    esac && \
+    wget https://github.com/sraoss/pg_ivm/archive/refs/tags/v1.7.tar.gz -O pg_ivm.tar.gz && \
    echo "ebfde04f99203c7be4b0e873f91104090e2e83e5429c32ac242d00f334224d5e pg_ivm.tar.gz" | sha256sum --check && \
    mkdir pg_ivm-src && cd pg_ivm-src && tar xzf ../pg_ivm.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) && \
@@ -781,10 +918,14 @@ RUN wget https://github.com/sraoss/pg_ivm/archive/refs/tags/v1.7.tar.gz -O pg_iv
 #
 #########################################################################################
 FROM build-deps AS pg-partman-build
+ARG PG_VERSION
 COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/

 ENV PATH="/usr/local/pgsql/bin/:$PATH"
-RUN wget https://github.com/pgpartman/pg_partman/archive/refs/tags/v5.0.1.tar.gz -O pg_partman.tar.gz && \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "pg_partman doesn't support PG17 yet" && exit 0;; \
+    esac && \
+    wget https://github.com/pgpartman/pg_partman/archive/refs/tags/v5.0.1.tar.gz -O pg_partman.tar.gz && \
    echo "75b541733a9659a6c90dbd40fccb904a630a32880a6e3044d0c4c5f4c8a65525 pg_partman.tar.gz" | sha256sum --check && \
    mkdir pg_partman-src && cd pg_partman-src && tar xzf ../pg_partman.tar.gz --strip-components=1 -C . && \
    make -j $(getconf _NPROCESSORS_ONLN) && \
@@ -854,8 +995,8 @@ RUN make -j $(getconf _NPROCESSORS_ONLN) \
    case "${PG_VERSION}" in \
        "v14" | "v15") \
        ;; \
-        "v16") \
-            echo "Skipping HNSW for PostgreSQL 16" && exit 0 \
+        "v16" | "v17") \
+            echo "Skipping HNSW for PostgreSQL ${PG_VERSION}" && exit 0 \
        ;; \
        *) \
            echo "unexpected PostgreSQL version" && exit 1 \
@@ -899,7 +1040,7 @@ FROM neon-pg-ext-build AS postgres-cleanup-layer
 COPY --from=neon-pg-ext-build /usr/local/pgsql /usr/local/pgsql

 # Remove binaries from /bin/ that we won't use (or would manually copy & install otherwise)
-RUN cd /usr/local/pgsql/bin && rm ecpg raster2pgsql shp2pgsql pgtopo_export pgtopo_import pgsql2shp
+RUN cd /usr/local/pgsql/bin && rm -f ecpg raster2pgsql shp2pgsql pgtopo_export pgtopo_import pgsql2shp

 # Remove headers that we won't need anymore - we've completed installation of all extensions
 RUN rm -r /usr/local/pgsql/include
@@ -918,7 +1059,10 @@ RUN rm /usr/local/pgsql/lib/lib*.a

 FROM neon-pg-ext-build AS neon-pg-ext-test
 ARG PG_VERSION
-RUN mkdir /ext-src
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    mkdir /ext-src

 #COPY --from=postgis-build /postgis.tar.gz /ext-src/
 #COPY --from=postgis-build /sfcgal/* /usr
@@ -956,18 +1100,39 @@ COPY --from=pg-anon-pg-build /pg_anon.tar.gz /ext-src
 COPY patches/pg_anon.patch /ext-src
 COPY --from=pg-ivm-build /pg_ivm.tar.gz /ext-src
 COPY --from=pg-partman-build /pg_partman.tar.gz /ext-src
-RUN cd /ext-src/ && for f in *.tar.gz; \
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    cd /ext-src/ && for f in *.tar.gz; \
    do echo $f; dname=$(echo $f | sed 's/\.tar.*//')-src; \
    rm -rf $dname; mkdir $dname; tar xzf $f --strip-components=1 -C $dname \
    || exit 1; rm -f $f; done
-RUN cd /ext-src/pgvector-src && patch -p1 <../pgvector.patch
-RUN cd /ext-src/rum-src && patch -p1 <../rum.patch
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    cd /ext-src/rum-src && patch -p1 <../rum.patch
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    cd /ext-src/pgvector-src && patch -p1 <../pgvector.patch
 # cmake is required for the h3 test
-RUN apt-get update && apt-get install -y cmake
-RUN cd /ext-src/pg_hint_plan-src && patch -p1 < /ext-src/pg_hint_plan.patch
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    apt-get update && apt-get install -y cmake
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    cd /ext-src/pg_hint_plan-src && patch -p1 < /ext-src/pg_hint_plan.patch
 COPY --chmod=755 docker-compose/run-tests.sh /run-tests.sh
-RUN patch -p1 </ext-src/pg_anon.patch
-RUN patch -p1 </ext-src/pg_cron.patch
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    patch -p1 </ext-src/pg_anon.patch
+RUN case "${PG_VERSION}" in "v17") \
+    echo "v17 extensions are not supported yet. Quit" && exit 0;; \
+    esac && \
+    patch -p1 </ext-src/pg_cron.patch
 ENV PATH=/usr/local/pgsql/bin:$PATH
 ENV PGHOST=compute
 ENV PGPORT=55433
--- a/56
+++ b/56
@@ -119,6 +119,8 @@ $(POSTGRES_INSTALL_DIR)/build/%/config.status:
 # I'm not sure why it wouldn't work, but this is the only place (apart from
 # the "build-all-versions" entry points) where direct mention of PostgreSQL
 # versions is used.
+.PHONY: postgres-configure-v17
+postgres-configure-v17: $(POSTGRES_INSTALL_DIR)/build/v17/config.status
 .PHONY: postgres-configure-v16
 postgres-configure-v16: $(POSTGRES_INSTALL_DIR)/build/v16/config.status
 .PHONY: postgres-configure-v15
@@ -215,29 +217,31 @@ neon-pg-clean-ext-%:
 # they depend on openssl and other libraries that are not included in our
 # Rust build.
 .PHONY: walproposer-lib
-walproposer-lib: neon-pg-ext-v16
+walproposer-lib: neon-pg-ext-v17
 	+@echo "Compiling walproposer-lib"
 	mkdir -p $(POSTGRES_INSTALL_DIR)/build/walproposer-lib
-	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v16/bin/pg_config CFLAGS='$(PG_CFLAGS) $(COPT)' \
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v17/bin/pg_config CFLAGS='$(PG_CFLAGS) $(COPT)' \
 		-C $(POSTGRES_INSTALL_DIR)/build/walproposer-lib \
 		-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile walproposer-lib
-	cp $(POSTGRES_INSTALL_DIR)/v16/lib/libpgport.a $(POSTGRES_INSTALL_DIR)/build/walproposer-lib
-	cp $(POSTGRES_INSTALL_DIR)/v16/lib/libpgcommon.a $(POSTGRES_INSTALL_DIR)/build/walproposer-lib
-ifeq ($(UNAME_S),Linux)
+	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 $(POSTGRES_INSTALL_DIR)/build/walproposer-lib/libpgcommon.a \
-		pg_crc32c.o \
-		hmac_openssl.o \
+		checksum_helper.o \
 		cryptohash_openssl.o \
-		scram-common.o \
+		hmac_openssl.o \
 		md5_common.o \
-		checksum_helper.o
+		parse_manifest.o \
+		scram-common.o
+ifeq ($(UNAME_S),Linux)
+	$(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)/v16/bin/pg_config \
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v17/bin/pg_config \
 		-C $(POSTGRES_INSTALL_DIR)/build/walproposer-lib \
 		-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile clean

@@ -245,38 +249,44 @@ walproposer-lib-clean:
 neon-pg-ext: \
 	neon-pg-ext-v14 \
 	neon-pg-ext-v15 \
-	neon-pg-ext-v16
+	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-v16 \
+	neon-pg-clean-ext-v17

 # shorthand to build all Postgres versions
 .PHONY: postgres
 postgres: \
 	postgres-v14 \
 	postgres-v15 \
-	postgres-v16
+	postgres-v16 \
+	postgres-v17

 .PHONY: postgres-headers
 postgres-headers: \
 	postgres-headers-v14 \
 	postgres-headers-v15 \
-	postgres-headers-v16
+	postgres-headers-v16 \
+	postgres-headers-v17

 .PHONY: postgres-clean
 postgres-clean: \
 	postgres-clean-v14 \
 	postgres-clean-v15 \
-	postgres-clean-v16
+	postgres-clean-v16 \
+	postgres-clean-v17

 .PHONY: postgres-check
 postgres-check: \
 	postgres-check-v14 \
 	postgres-check-v15 \
-	postgres-check-v16
+	postgres-check-v16 \
+	postgres-check-v17

 # This doesn't remove the effects of 'configure'.
 .PHONY: clean
@@ -321,13 +331,13 @@ postgres-%-pgindent: postgres-%-pg-bsd-indent postgres-%-typedefs.list
 	rm -f pg*.BAK

 # Indent pxgn/neon.
-.PHONY: pgindent
-neon-pgindent: postgres-v16-pg-bsd-indent neon-pg-ext-v16
-	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v16/bin/pg_config CFLAGS='$(PG_CFLAGS) $(COPT)' \
-		FIND_TYPEDEF=$(ROOT_PROJECT_DIR)/vendor/postgres-v16/src/tools/find_typedef \
-		INDENT=$(POSTGRES_INSTALL_DIR)/build/v16/src/tools/pg_bsd_indent/pg_bsd_indent \
-		PGINDENT_SCRIPT=$(ROOT_PROJECT_DIR)/vendor/postgres-v16/src/tools/pgindent/pgindent \
-		-C $(POSTGRES_INSTALL_DIR)/build/neon-v16 \
+.PHONY: neon-pgindent
+neon-pgindent: postgres-v17-pg-bsd-indent neon-pg-ext-v17
+	$(MAKE) PG_CONFIG=$(POSTGRES_INSTALL_DIR)/v17/bin/pg_config CFLAGS='$(PG_CFLAGS) $(COPT)' \
+		FIND_TYPEDEF=$(ROOT_PROJECT_DIR)/vendor/postgres-v17/src/tools/find_typedef \
+		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 $(POSTGRES_INSTALL_DIR)/build/neon-v17 \
 		-f $(ROOT_PROJECT_DIR)/pgxn/neon/Makefile pgindent


--- a/compute_tools/Cargo.toml
+++ b/compute_tools/Cargo.toml
@@ -11,7 +11,6 @@ testing = []

 [dependencies]
 anyhow.workspace = true
-async-compression.workspace = true
 chrono.workspace = true
 cfg-if.workspace = true
 clap.workspace = true
@@ -24,7 +23,6 @@ num_cpus.workspace = true
 opentelemetry.workspace = true
 postgres.workspace = true
 regex.workspace = true
-serde.workspace = true
 serde_json.workspace = true
 signal-hook.workspace = true
 tar.workspace = true
@@ -43,7 +41,6 @@ url.workspace = true
 compute_api.workspace = true
 utils.workspace = true
 workspace_hack.workspace = true
-toml_edit.workspace = true
 remote_storage = { version = "0.1", path = "../libs/remote_storage/" }
 vm_monitor = { version = "0.1", path = "../libs/vm_monitor/" }
 zstd = "0.13"
--- a/compute_tools/src/compute.rs
+++ b/compute_tools/src/compute.rs
@@ -1052,26 +1052,19 @@ impl ComputeNode {
        let pg_process = self.start_postgres(pspec.storage_auth_token.clone())?;

        let config_time = Utc::now();
-        if pspec.spec.mode == ComputeMode::Primary {
-            if !pspec.spec.skip_pg_catalog_updates {
-                let pgdata_path = Path::new(&self.pgdata);
-                // temporarily reset max_cluster_size in config
-                // to avoid the possibility of hitting the limit, while we are applying config:
-                // creating new extensions, roles, etc...
-                config::with_compute_ctl_tmp_override(
-                    pgdata_path,
-                    "neon.max_cluster_size=-1",
-                    || {
-                        self.pg_reload_conf()?;
-
-                        self.apply_config(&compute_state)?;
-
-                        Ok(())
-                    },
-                )?;
+        if pspec.spec.mode == ComputeMode::Primary && !pspec.spec.skip_pg_catalog_updates {
+            let pgdata_path = Path::new(&self.pgdata);
+            // temporarily reset max_cluster_size in config
+            // to avoid the possibility of hitting the limit, while we are applying config:
+            // creating new extensions, roles, etc...
+            config::with_compute_ctl_tmp_override(pgdata_path, "neon.max_cluster_size=-1", || {
                self.pg_reload_conf()?;
-            }
-            self.post_apply_config()?;
+
+                self.apply_config(&compute_state)?;
+
+                Ok(())
+            })?;
+            self.pg_reload_conf()?;
        }

        let startup_end_time = Utc::now();
--- a/compute_tools/src/extension_server.rs
+++ b/compute_tools/src/extension_server.rs
@@ -124,6 +124,7 @@ fn parse_pg_version(human_version: &str) -> &str {
            "14" => return "v14",
            "15" => return "v15",
            "16" => return "v16",
+            "17" => return "v17",
            _ => {}
        },
        _ => {}
--- a/compute_tools/src/migrations/0011-grant_pg_show_replication_origin_status_to_neon_superuser.sql
+++ b/compute_tools/src/migrations/0011-grant_pg_show_replication_origin_status_to_neon_superuser.sql
@@ -0,0 +1 @@
+GRANT EXECUTE ON FUNCTION pg_show_replication_origin_status TO neon_superuser;
--- a/compute_tools/src/spec.rs
+++ b/compute_tools/src/spec.rs
@@ -793,6 +793,9 @@ pub fn handle_migrations(client: &mut Client) -> Result<()> {
        include_str!(
            "./migrations/0010-grant_snapshot_synchronization_funcs_to_neon_superuser.sql"
        ),
+        include_str!(
+            "./migrations/0011-grant_pg_show_replication_origin_status_to_neon_superuser.sql"
+        ),
    ];

    MigrationRunner::new(client, &migrations).run_migrations()?;
--- a/control_plane/Cargo.toml
+++ b/control_plane/Cargo.toml
@@ -9,13 +9,10 @@ anyhow.workspace = true
 camino.workspace = true
 clap.workspace = true
 comfy-table.workspace = true
-futures.workspace = true
 git-version.workspace = true
 humantime.workspace = true
 nix.workspace = true
 once_cell.workspace = true
-postgres.workspace = true
-hex.workspace = true
 humantime-serde.workspace = true
 hyper.workspace = true
 regex.workspace = true
@@ -23,8 +20,6 @@ reqwest = { workspace = true, features = ["blocking", "json"] }
 scopeguard.workspace = true
 serde.workspace = true
 serde_json.workspace = true
-serde_with.workspace = true
-tar.workspace = true
 thiserror.workspace = true
 toml.workspace = true
 toml_edit.workspace = true
--- a/control_plane/src/background_process.rs
+++ b/control_plane/src/background_process.rs
@@ -151,7 +151,7 @@ where
                    print!(".");
                    io::stdout().flush().unwrap();
                }
-                thread::sleep(RETRY_INTERVAL);
+                tokio::time::sleep(RETRY_INTERVAL).await;
            }
            Err(e) => {
                println!("error starting process {process_name:?}: {e:#}");
--- a/control_plane/src/bin/neon_local.rs
+++ b/control_plane/src/bin/neon_local.rs
@@ -34,12 +34,14 @@ use safekeeper_api::{
    DEFAULT_HTTP_LISTEN_PORT as DEFAULT_SAFEKEEPER_HTTP_PORT,
    DEFAULT_PG_LISTEN_PORT as DEFAULT_SAFEKEEPER_PG_PORT,
 };
+use std::borrow::Cow;
 use std::collections::{BTreeSet, HashMap};
 use std::path::PathBuf;
 use std::process::exit;
 use std::str::FromStr;
 use std::time::Duration;
 use storage_broker::DEFAULT_LISTEN_ADDR as DEFAULT_BROKER_ADDR;
+use tokio::task::JoinSet;
 use url::Host;
 use utils::{
    auth::{Claims, Scope},
@@ -87,34 +89,35 @@ fn main() -> Result<()> {

    // Check for 'neon init' command first.
    let subcommand_result = if sub_name == "init" {
-        handle_init(sub_args).map(Some)
+        handle_init(sub_args).map(|env| Some(Cow::Owned(env)))
    } else {
        // all other commands need an existing config
-        let mut env =
-            LocalEnv::load_config(&local_env::base_path()).context("Error loading config")?;
-        let original_env = env.clone();

+        let env = LocalEnv::load_config(&local_env::base_path()).context("Error loading config")?;
+        let original_env = env.clone();
+        let env = Box::leak(Box::new(env));
        let rt = tokio::runtime::Builder::new_current_thread()
            .enable_all()
            .build()
            .unwrap();

        let subcommand_result = match sub_name {
-            "tenant" => rt.block_on(handle_tenant(sub_args, &mut env)),
-            "timeline" => rt.block_on(handle_timeline(sub_args, &mut env)),
-            "start" => rt.block_on(handle_start_all(&env, get_start_timeout(sub_args))),
-            "stop" => rt.block_on(handle_stop_all(sub_args, &env)),
-            "pageserver" => rt.block_on(handle_pageserver(sub_args, &env)),
-            "storage_controller" => rt.block_on(handle_storage_controller(sub_args, &env)),
-            "safekeeper" => rt.block_on(handle_safekeeper(sub_args, &env)),
-            "endpoint" => rt.block_on(handle_endpoint(sub_args, &env)),
-            "mappings" => handle_mappings(sub_args, &mut env),
+            "tenant" => rt.block_on(handle_tenant(sub_args, env)),
+            "timeline" => rt.block_on(handle_timeline(sub_args, env)),
+            "start" => rt.block_on(handle_start_all(env, get_start_timeout(sub_args))),
+            "stop" => rt.block_on(handle_stop_all(sub_args, env)),
+            "pageserver" => rt.block_on(handle_pageserver(sub_args, env)),
+            "storage_controller" => rt.block_on(handle_storage_controller(sub_args, env)),
+            "storage_broker" => rt.block_on(handle_storage_broker(sub_args, env)),
+            "safekeeper" => rt.block_on(handle_safekeeper(sub_args, env)),
+            "endpoint" => rt.block_on(handle_endpoint(sub_args, env)),
+            "mappings" => handle_mappings(sub_args, env),
            "pg" => bail!("'pg' subcommand has been renamed to 'endpoint'"),
            _ => bail!("unexpected subcommand {sub_name}"),
        };

-        if original_env != env {
-            subcommand_result.map(|()| Some(env))
+        if &original_env != env {
+            subcommand_result.map(|()| Some(Cow::Borrowed(env)))
        } else {
            subcommand_result.map(|()| None)
        }
@@ -640,6 +643,8 @@ async fn handle_timeline(timeline_match: &ArgMatches, env: &mut local_env::Local
        }
        Some(("branch", branch_match)) => {
            let tenant_id = get_tenant_id(branch_match, env)?;
+            let new_timeline_id =
+                parse_timeline_id(branch_match)?.unwrap_or(TimelineId::generate());
            let new_branch_name = branch_match
                .get_one::<String>("branch-name")
                .ok_or_else(|| anyhow!("No branch name provided"))?;
@@ -658,7 +663,6 @@ async fn handle_timeline(timeline_match: &ArgMatches, env: &mut local_env::Local
                .map(|lsn_str| Lsn::from_str(lsn_str))
                .transpose()
                .context("Failed to parse ancestor start Lsn from the request")?;
-            let new_timeline_id = TimelineId::generate();
            let storage_controller = StorageController::from_env(env);
            let create_req = TimelineCreateRequest {
                new_timeline_id,
@@ -1244,49 +1248,122 @@ async fn handle_safekeeper(sub_match: &ArgMatches, env: &local_env::LocalEnv) ->
    Ok(())
 }

+async fn handle_storage_broker(sub_match: &ArgMatches, env: &local_env::LocalEnv) -> Result<()> {
+    let (sub_name, sub_args) = match sub_match.subcommand() {
+        Some(broker_command_data) => broker_command_data,
+        None => bail!("no broker subcommand provided"),
+    };
+
+    match sub_name {
+        "start" => {
+            if let Err(e) = broker::start_broker_process(env, get_start_timeout(sub_args)).await {
+                eprintln!("broker start failed: {e}");
+                exit(1);
+            }
+        }
+
+        "stop" => {
+            if let Err(e) = broker::stop_broker_process(env) {
+                eprintln!("broker stop failed: {e}");
+                exit(1);
+            }
+        }
+
+        _ => bail!("Unexpected broker subcommand '{}'", sub_name),
+    }
+    Ok(())
+}
+
 async fn handle_start_all(
-    env: &local_env::LocalEnv,
+    env: &'static local_env::LocalEnv,
    retry_timeout: &Duration,
 ) -> anyhow::Result<()> {
+    let Err(errors) = handle_start_all_impl(env, *retry_timeout).await else {
+        neon_start_status_check(env, retry_timeout)
+            .await
+            .context("status check after successful startup of all services")?;
+        return Ok(());
+    };
+
+    eprintln!("startup failed because one or more services could not be started");
+
+    for e in errors {
+        eprintln!("{e}");
+        let debug_repr = format!("{e:?}");
+        for line in debug_repr.lines() {
+            eprintln!("  {line}");
+        }
+    }
+
+    try_stop_all(env, true).await;
+
+    exit(2);
+}
+
+/// Returns Ok() if and only if all services could be started successfully.
+/// Otherwise, returns the list of errors that occurred during startup.
+async fn handle_start_all_impl(
+    env: &'static local_env::LocalEnv,
+    retry_timeout: Duration,
+) -> Result<(), Vec<anyhow::Error>> {
    // Endpoints are not started automatically

-    broker::start_broker_process(env, retry_timeout).await?;
+    let mut js = JoinSet::new();

-    // Only start the storage controller if the pageserver is configured to need it
-    if env.control_plane_api.is_some() {
-        let storage_controller = StorageController::from_env(env);
-        if let Err(e) = storage_controller
-            .start(NeonStorageControllerStartArgs::with_default_instance_id(
-                (*retry_timeout).into(),
-            ))
-            .await
-        {
-            eprintln!("storage_controller start failed: {:#}", e);
-            try_stop_all(env, true).await;
-            exit(1);
+    // force infalliblity through closure
+    #[allow(clippy::redundant_closure_call)]
+    (|| {
+        js.spawn(async move {
+            let retry_timeout = retry_timeout;
+            broker::start_broker_process(env, &retry_timeout).await
+        });
+
+        // Only start the storage controller if the pageserver is configured to need it
+        if env.control_plane_api.is_some() {
+            js.spawn(async move {
+                let storage_controller = StorageController::from_env(env);
+                storage_controller
+                    .start(NeonStorageControllerStartArgs::with_default_instance_id(
+                        retry_timeout.into(),
+                    ))
+                    .await
+                    .map_err(|e| e.context("start storage_controller"))
+            });
+        }
+
+        for ps_conf in &env.pageservers {
+            js.spawn(async move {
+                let pageserver = PageServerNode::from_env(env, ps_conf);
+                pageserver
+                    .start(&retry_timeout)
+                    .await
+                    .map_err(|e| e.context(format!("start pageserver {}", ps_conf.id)))
+            });
+        }
+
+        for node in env.safekeepers.iter() {
+            js.spawn(async move {
+                let safekeeper = SafekeeperNode::from_env(env, node);
+                safekeeper
+                    .start(vec![], &retry_timeout)
+                    .await
+                    .map_err(|e| e.context(format!("start safekeeper {}", safekeeper.id)))
+            });
+        }
+    })();
+
+    let mut errors = Vec::new();
+    while let Some(result) = js.join_next().await {
+        let result = result.expect("we don't panic or cancel the tasks");
+        if let Err(e) = result {
+            errors.push(e);
        }
    }

-    for ps_conf in &env.pageservers {
-        let pageserver = PageServerNode::from_env(env, ps_conf);
-        if let Err(e) = pageserver.start(retry_timeout).await {
-            eprintln!("pageserver {} start failed: {:#}", ps_conf.id, e);
-            try_stop_all(env, true).await;
-            exit(1);
-        }
+    if !errors.is_empty() {
+        return Err(errors);
    }

-    for node in env.safekeepers.iter() {
-        let safekeeper = SafekeeperNode::from_env(env, node);
-        if let Err(e) = safekeeper.start(vec![], retry_timeout).await {
-            eprintln!("safekeeper {} start failed: {:#}", safekeeper.id, e);
-            try_stop_all(env, false).await;
-            exit(1);
-        }
-    }
-
-    neon_start_status_check(env, retry_timeout).await?;
-
    Ok(())
 }

@@ -1570,7 +1647,6 @@ fn cli() -> Command {
                        .value_parser(value_parser!(PathBuf))
                        .value_name("config")
                )
-                .arg(pg_version_arg.clone())
                .arg(force_arg)
        )
        .subcommand(
@@ -1583,6 +1659,7 @@ fn cli() -> Command {
            .subcommand(Command::new("branch")
                .about("Create a new timeline, using another timeline as a base, copying its data")
                .arg(tenant_id_arg.clone())
+                .arg(timeline_id_arg.clone())
                .arg(branch_name_arg.clone())
                .arg(Arg::new("ancestor-branch-name").long("ancestor-branch-name")
                    .help("Use last Lsn of another timeline (and its data) as base when creating the new timeline. The timeline gets resolved by its branch name.").required(false))
@@ -1671,6 +1748,19 @@ fn cli() -> Command {
                            .arg(stop_mode_arg.clone())
                            .arg(instance_id))
        )
+        .subcommand(
+            Command::new("storage_broker")
+                .arg_required_else_help(true)
+                .about("Manage broker")
+                .subcommand(Command::new("start")
+                            .about("Start broker")
+                            .arg(timeout_arg.clone())
+                )
+                .subcommand(Command::new("stop")
+                            .about("Stop broker")
+                            .arg(stop_mode_arg.clone())
+                )
+        )
        .subcommand(
            Command::new("safekeeper")
                .arg_required_else_help(true)
--- a/control_plane/src/endpoint.rs
+++ b/control_plane/src/endpoint.rs
@@ -702,7 +702,7 @@ impl Endpoint {
                    }
                }
            }
-            std::thread::sleep(ATTEMPT_INTERVAL);
+            tokio::time::sleep(ATTEMPT_INTERVAL).await;
        }

        // disarm the scopeguard, let the child outlive this function (and neon_local invoction)
--- a/control_plane/src/local_env.rs
+++ b/control_plane/src/local_env.rs
@@ -342,7 +342,7 @@ impl LocalEnv {

        #[allow(clippy::manual_range_patterns)]
        match pg_version {
-            14 | 15 | 16 => Ok(path.join(format!("v{pg_version}"))),
+            14 | 15 | 16 | 17 => Ok(path.join(format!("v{pg_version}"))),
            _ => bail!("Unsupported postgres version: {}", pg_version),
        }
    }
--- a/control_plane/src/pageserver.rs
+++ b/control_plane/src/pageserver.rs
@@ -17,9 +17,7 @@ use std::time::Duration;

 use anyhow::{bail, Context};
 use camino::Utf8PathBuf;
-use pageserver_api::models::{
-    self, AuxFilePolicy, LocationConfig, TenantHistorySize, TenantInfo, TimelineInfo,
-};
+use pageserver_api::models::{self, AuxFilePolicy, TenantInfo, TimelineInfo};
 use pageserver_api::shard::TenantShardId;
 use pageserver_client::mgmt_api;
 use postgres_backend::AuthType;
@@ -324,22 +322,6 @@ impl PageServerNode {
        background_process::stop_process(immediate, "pageserver", &self.pid_file())
    }

-    pub async fn page_server_psql_client(
-        &self,
-    ) -> anyhow::Result<(
-        tokio_postgres::Client,
-        tokio_postgres::Connection<tokio_postgres::Socket, tokio_postgres::tls::NoTlsStream>,
-    )> {
-        let mut config = self.pg_connection_config.clone();
-        if self.conf.pg_auth_type == AuthType::NeonJWT {
-            let token = self
-                .env
-                .generate_auth_token(&Claims::new(None, Scope::PageServerApi))?;
-            config = config.set_password(Some(token));
-        }
-        Ok(config.connect_no_tls().await?)
-    }
-
    pub async fn check_status(&self) -> mgmt_api::Result<()> {
        self.http_client.status().await
    }
@@ -540,19 +522,6 @@ impl PageServerNode {
        Ok(())
    }

-    pub async fn location_config(
-        &self,
-        tenant_shard_id: TenantShardId,
-        config: LocationConfig,
-        flush_ms: Option<Duration>,
-        lazy: bool,
-    ) -> anyhow::Result<()> {
-        Ok(self
-            .http_client
-            .location_config(tenant_shard_id, config, flush_ms, lazy)
-            .await?)
-    }
-
    pub async fn timeline_list(
        &self,
        tenant_shard_id: &TenantShardId,
@@ -636,14 +605,4 @@ impl PageServerNode {

        Ok(())
    }
-
-    pub async fn tenant_synthetic_size(
-        &self,
-        tenant_shard_id: TenantShardId,
-    ) -> anyhow::Result<TenantHistorySize> {
-        Ok(self
-            .http_client
-            .tenant_synthetic_size(tenant_shard_id)
-            .await?)
-    }
 }
--- a/control_plane/src/postgresql_conf.rs
+++ b/control_plane/src/postgresql_conf.rs
@@ -4,13 +4,10 @@
 /// NOTE: This doesn't implement the full, correct postgresql.conf syntax. Just
 /// enough to extract a few settings we need in Neon, assuming you don't do
 /// funny stuff like include-directives or funny escaping.
-use anyhow::{bail, Context, Result};
 use once_cell::sync::Lazy;
 use regex::Regex;
 use std::collections::HashMap;
 use std::fmt;
-use std::io::BufRead;
-use std::str::FromStr;

 /// In-memory representation of a postgresql.conf file
 #[derive(Default, Debug)]
@@ -19,84 +16,16 @@ pub struct PostgresConf {
    hash: HashMap<String, String>,
 }

-static CONF_LINE_RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"^((?:\w|\.)+)\s*=\s*(\S+)$").unwrap());
-
 impl PostgresConf {
    pub fn new() -> PostgresConf {
        PostgresConf::default()
    }

-    /// Read file into memory
-    pub fn read(read: impl std::io::Read) -> Result<PostgresConf> {
-        let mut result = Self::new();
-
-        for line in std::io::BufReader::new(read).lines() {
-            let line = line?;
-
-            // Store each line in a vector, in original format
-            result.lines.push(line.clone());
-
-            // Also parse each line and insert key=value lines into a hash map.
-            //
-            // FIXME: This doesn't match exactly the flex/bison grammar in PostgreSQL.
-            // But it's close enough for our usage.
-            let line = line.trim();
-            if line.starts_with('#') {
-                // comment, ignore
-                continue;
-            } else if let Some(caps) = CONF_LINE_RE.captures(line) {
-                let name = caps.get(1).unwrap().as_str();
-                let raw_val = caps.get(2).unwrap().as_str();
-
-                if let Ok(val) = deescape_str(raw_val) {
-                    // Note: if there's already an entry in the hash map for
-                    // this key, this will replace it. That's the behavior what
-                    // we want; when PostgreSQL reads the file, each line
-                    // overrides any previous value for the same setting.
-                    result.hash.insert(name.to_string(), val.to_string());
-                }
-            }
-        }
-        Ok(result)
-    }
-
    /// Return the current value of 'option'
    pub fn get(&self, option: &str) -> Option<&str> {
        self.hash.get(option).map(|x| x.as_ref())
    }

-    /// Return the current value of a field, parsed to the right datatype.
-    ///
-    /// This calls the FromStr::parse() function on the value of the field. If
-    /// the field does not exist, or parsing fails, returns an error.
-    ///
-    pub fn parse_field<T>(&self, field_name: &str, context: &str) -> Result<T>
-    where
-        T: FromStr,
-        <T as FromStr>::Err: std::error::Error + Send + Sync + 'static,
-    {
-        self.get(field_name)
-            .with_context(|| format!("could not find '{}' option {}", field_name, context))?
-            .parse::<T>()
-            .with_context(|| format!("could not parse '{}' option {}", field_name, context))
-    }
-
-    pub fn parse_field_optional<T>(&self, field_name: &str, context: &str) -> Result<Option<T>>
-    where
-        T: FromStr,
-        <T as FromStr>::Err: std::error::Error + Send + Sync + 'static,
-    {
-        if let Some(val) = self.get(field_name) {
-            let result = val
-                .parse::<T>()
-                .with_context(|| format!("could not parse '{}' option {}", field_name, context))?;
-
-            Ok(Some(result))
-        } else {
-            Ok(None)
-        }
-    }
-
    ///
    /// Note: if you call this multiple times for the same option, the config
    /// file will a line for each call. It would be nice to have a function
@@ -154,48 +83,8 @@ fn escape_str(s: &str) -> String {
    }
 }

-/// De-escape a possibly-quoted value.
-///
-/// See `DeescapeQuotedString` function in PostgreSQL sources for how PostgreSQL
-/// does this.
-fn deescape_str(s: &str) -> Result<String> {
-    // If the string has a quote at the beginning and end, strip them out.
-    if s.len() >= 2 && s.starts_with('\'') && s.ends_with('\'') {
-        let mut result = String::new();
-
-        let mut iter = s[1..(s.len() - 1)].chars().peekable();
-        while let Some(c) = iter.next() {
-            let newc = if c == '\\' {
-                match iter.next() {
-                    Some('b') => '\x08',
-                    Some('f') => '\x0c',
-                    Some('n') => '\n',
-                    Some('r') => '\r',
-                    Some('t') => '\t',
-                    Some('0'..='7') => {
-                        // TODO
-                        bail!("octal escapes not supported");
-                    }
-                    Some(n) => n,
-                    None => break,
-                }
-            } else if c == '\'' && iter.peek() == Some(&'\'') {
-                // doubled quote becomes just one quote
-                iter.next().unwrap()
-            } else {
-                c
-            };
-
-            result.push(newc);
-        }
-        Ok(result)
-    } else {
-        Ok(s.to_string())
-    }
-}
-
 #[test]
-fn test_postgresql_conf_escapes() -> Result<()> {
+fn test_postgresql_conf_escapes() -> anyhow::Result<()> {
    assert_eq!(escape_str("foo bar"), "'foo bar'");
    // these don't need to be quoted
    assert_eq!(escape_str("foo"), "foo");
@@ -214,13 +103,5 @@ fn test_postgresql_conf_escapes() -> Result<()> {
    assert_eq!(escape_str("fo\\o"), "'fo\\\\o'");
    assert_eq!(escape_str("10 cats"), "'10 cats'");

-    // Test de-escaping
-    assert_eq!(deescape_str(&escape_str("foo"))?, "foo");
-    assert_eq!(deescape_str(&escape_str("fo'o\nba\\r"))?, "fo'o\nba\\r");
-    assert_eq!(deescape_str("'\\b\\f\\n\\r\\t'")?, "\x08\x0c\n\r\t");
-
-    // octal-escapes are currently not supported
-    assert!(deescape_str("'foo\\7\\07\\007'").is_err());
-
    Ok(())
 }
--- a/control_plane/src/storage_controller.rs
+++ b/control_plane/src/storage_controller.rs
@@ -28,6 +28,7 @@ use utils::{
    auth::{encode_from_key_file, Claims, Scope},
    id::{NodeId, TenantId},
 };
+use whoami::username;

 pub struct StorageController {
    env: LocalEnv,
@@ -183,7 +184,7 @@ impl StorageController {
    /// to other versions if that one isn't found.  Some automated tests create circumstances
    /// where only one version is available in pg_distrib_dir, such as `test_remote_extensions`.
    async fn get_pg_dir(&self, dir_name: &str) -> anyhow::Result<Utf8PathBuf> {
-        let prefer_versions = [STORAGE_CONTROLLER_POSTGRES_VERSION, 15, 14];
+        let prefer_versions = [STORAGE_CONTROLLER_POSTGRES_VERSION, 16, 15, 14];

        for v in prefer_versions {
            let path = Utf8PathBuf::from_path_buf(self.env.pg_dir(v, dir_name)?).unwrap();
@@ -211,7 +212,16 @@ impl StorageController {
    /// Readiness check for our postgres process
    async fn pg_isready(&self, pg_bin_dir: &Utf8Path, postgres_port: u16) -> anyhow::Result<bool> {
        let bin_path = pg_bin_dir.join("pg_isready");
-        let args = ["-h", "localhost", "-p", &format!("{}", postgres_port)];
+        let args = [
+            "-h",
+            "localhost",
+            "-U",
+            &username(),
+            "-d",
+            DB_NAME,
+            "-p",
+            &format!("{}", postgres_port),
+        ];
        let exitcode = Command::new(bin_path).args(args).spawn()?.wait().await?;

        Ok(exitcode.success())
@@ -225,7 +235,11 @@ impl StorageController {
    ///
    /// Returns the database url
    pub async fn setup_database(&self, postgres_port: u16) -> anyhow::Result<String> {
-        let database_url = format!("postgresql://localhost:{}/{DB_NAME}", postgres_port);
+        let database_url = format!(
+            "postgresql://{}@localhost:{}/{DB_NAME}",
+            &username(),
+            postgres_port
+        );

        let pg_bin_dir = self.get_pg_bin_dir().await?;
        let createdb_path = pg_bin_dir.join("createdb");
@@ -235,6 +249,10 @@ impl StorageController {
                "localhost",
                "-p",
                &format!("{}", postgres_port),
+                "-U",
+                &username(),
+                "-O",
+                &username(),
                DB_NAME,
            ])
            .output()
@@ -271,7 +289,7 @@ impl StorageController {
            // But tokio-postgres fork doesn't have this upstream commit:
            // https://github.com/sfackler/rust-postgres/commit/cb609be758f3fb5af537f04b584a2ee0cebd5e79
            // => we should rebase our fork => TODO https://github.com/neondatabase/neon/issues/8399
-            .user(&whoami::username())
+            .user(&username())
            .dbname(DB_NAME)
            .connect(tokio_postgres::NoTls)
            .await
@@ -328,6 +346,12 @@ impl StorageController {
            let pg_log_path = pg_data_path.join("postgres.log");

            if !tokio::fs::try_exists(&pg_data_path).await? {
+                let initdb_args = ["-D", pg_data_path.as_ref(), "--username", &username()];
+                tracing::info!(
+                    "Initializing storage controller database with args: {:?}",
+                    initdb_args
+                );
+
                // Initialize empty database
                let initdb_path = pg_bin_dir.join("initdb");
                let mut child = Command::new(&initdb_path)
@@ -335,7 +359,7 @@ impl StorageController {
                        ("LD_LIBRARY_PATH".to_owned(), pg_lib_dir.to_string()),
                        ("DYLD_LIBRARY_PATH".to_owned(), pg_lib_dir.to_string()),
                    ])
-                    .args(["-D", pg_data_path.as_ref()])
+                    .args(initdb_args)
                    .spawn()
                    .expect("Failed to spawn initdb");
                let status = child.wait().await?;
@@ -364,8 +388,14 @@ impl StorageController {
                pg_data_path.as_ref(),
                "-l",
                pg_log_path.as_ref(),
+                "-U",
+                &username(),
                "start",
            ];
+            tracing::info!(
+                "Starting storage controller database with args: {:?}",
+                db_start_args
+            );

            background_process::start_process(
                "storage_controller_db",
--- a/control_plane/storcon_cli/Cargo.toml
+++ b/control_plane/storcon_cli/Cargo.toml
@@ -11,14 +11,11 @@ clap.workspace = true
 comfy-table.workspace = true
 futures.workspace = true
 humantime.workspace = true
-hyper.workspace = true
 pageserver_api.workspace = true
 pageserver_client.workspace = true
 reqwest.workspace = true
-serde.workspace = true
 serde_json = { workspace = true, features = ["raw_value"] }
 storage_controller_client.workspace = true
-thiserror.workspace = true
 tokio.workspace = true
 tracing.workspace = true
 utils.workspace = true
--- a/docs/rfcs/039-single-click-pg-upgrade.md
+++ b/docs/rfcs/039-single-click-pg-upgrade.md
@@ -0,0 +1,199 @@
+## How pg_upgrade works in upstream postgres:
+
+0. USER: Initdb new version cluster and prepare it (install extension shared object files to the right path, adjust authentication and config)
+1. USER: stop both clusters
+2. USER run pg_upgade
+
+3. pg_upgrade: pg_dump of old cluster
+
+```
+start_postmaster(&old_cluster)
+
+get_db_and_rel_infos(&old_cluster);
+init_tablespaces();
+get_loadable_libraries();
+
+// some other checks
+
+generate_old_dump();
+
+stop_postmaster()
+
+```
+
+4. pg_upgrade: check and prepare new cluster
+
+```
+start_postmaster(&new_cluster);
+check_new_cluster();
+    get_db_and_rel_infos(&new_cluster);
+	check_new_cluster_is_empty();
+	check_loadable_libraries();
+
+set_locale_and_encoding();
+
+// run `vacuumdb --all --analyze` and  `vacuumdb --all --freeze`
+prepare_new_cluster();
+
+stop_postmaster();
+
+```
+
+5. pg_upgrade: handle SLRU
+
+```
+copy_xact_xlog_xid()
+    copy pg_xact files
+    set the next transaction id and epoch of the new cluster 
+
+    copy multixact files
+    Setting next multixact ID and offset for new cluster
+```
+
+6. pg_upgrade: pg_restore to new cluster
+
+```
+    // Note that postgres starts in a special --binary-upgrade mode.
+	start_postmaster(&new_cluster, true);
+
+	prepare_new_globals();
+
+    // Basically pg_restore, but postgres runs in --binary-upgrade mode
+    // and preserves OIDs and relfilenodes of imported objects
+	create_new_objects();
+
+	stop_postmaster();
+```
+
+7. pg_upgrade: transfer data files
+
+
+#### Storage compatibility:
+
+1. OID and relfilenode:
+pg_upgrade ensures that all assignments of `pg_class.oid` (and `relfilenode`) so toast oids are the same between old and new clusters. 
+It also controls assignments of `pg_tablespace.oid`, `pg_type.oid`, `pg_enum.oid` and `pg_authid.oid`.
+
+To do this, it starts postgres in (undocumented) --binary-upgrade mode.
+
+2. Page layout of relation and SLRU
+
+Postgres aims to maintain backward compatibility of page layout and change it lazily in the new version.
+In exceptional cases, it provides a function to run during pg_upgrade the page layout.
+
+We need to watch for such changes and probably reimplement them ourselves.
+
+3. Control file, XLOG format
+may change, but we use version-specific WAL-redo, so this is not a problem.
+
+
+## How we can make it work in neon:
+
+
+#### TLDR:
+1. create a new version branch from the old one
+2. run pg_upgrade in the background to prepare the new version catalog
+3. import the new version catalog into the new branch
+4. ?????
+5. profit
+
+#### What we have in prototype:
+- WAL-redo is version-specific and we can redo WAL using correct binary for page chain before and after the branch_lsn. No known issues here.
+
+- This example uses v14 -> v15 upgrade. I don't see any restrictions on the number of versions we can skip during the upgrade. pg_upgrade should be able to handle it. Our wal-redo mechanism should be able to handle it too.
+
+- We can simplify pg_upgrade sequence a lot, because we can control data visibility using branch LSN. We don't need to stop old cluster for a long time. Plus, we don't need data transfer step, just access the history.
+
+- We have working prototype of pg_upgrade service, where we spin old_cluster as neon_local compute connected to pagesever and new_cluster as just postgres process.
+
+The tricky part is to figure out the value of import_lsn (S) for the new version branch, 
+set it in all the right places and make the switch atomic.
+
+#### Let's set the terminology:
+```
+
+v14 branch ---------------------|*****X
+                                |
+v15 initdb + v15 pg_restore  I====R
+                                |
+v15 branch                      |~~~~~S--------->
+
+```
+
+`|` - branch_lsn. We don't really use it anywhere in the pg_upgrade branching, just use as a reference point.
+
+`I` - initdb_lsn of a new branch. We don't use it anywhere.
+
+`R` - LSN of a new version branch pg_restore catalog import. Let's call it the `restore_lsn`.
+We don't care about the history before restore_lsn, becaues we import timeline into branch as a snapshot.
+The restore_lsn may be both smaller and larger than the branch_lsn, depending on how active the old branch was and how many objects were created in the new branch by pg_restore (width of `====` on picture). 
+
+`S` - `start_lsn` of a new version branch. 
+We upload the prepared snapshot of the new version branch to the storage as of lsn `S`.
+This is the similar mechanism that we use to import new main timeline into the storage, but here we skip all non-catalog relation files - new branch will read their content from the old branch.
+
+`****` - writes that happened in v14 during the upgrade process. v15 must be able to read them. 
+
+`X` - final lsn of the old branch. It must be smaller than S. We must somehow restrict writes to the old branch after the version switch. Otherwise we will have data between S and X that will not be readable from the new branch.
+
+#### Complicated steps:
+
+##### How to figure out the value of `S`:
+- It must be larger than branch_lsn `|` to kepp the history line correct.
+- It must be larger than `R` to ensure that we can read the new objects created by pg_restore. Because otherwise the pages of the new branch will contain LSNs from the future and XLOG flush will break badly.
+- It must be larger than `X` to ensure that we don't miss any changes that happened in the old branch during the upgrade.
+
+- IIUC the correct value is `S = MAXALIGN(X+1)`, because we cannot import new timeline at LSN that exists in parent. 
+**Need review from the storage team here** to understand how hard this restriction is and if there is any problem with +1.
+
+##### Where to set `S` for the new branch:
+
+- We need to use it as a start_lsn for the new Timeline struct
+- We need to set it in the control file of the new branch.
+- We need to set in in the Checkpoint record of the new branch.
+
+##### How to make the switch atomic:
+
+- We need to restrict writes to the old branch to get the `X` value and use it as `S` for the new branch.
+- IIUC, we need to do this right before the import. This means that timeline import time is customer visible pg_upgrade downtime. Can we somehow make it shorter? What is our target downtime for the upgrade? **Need storage team help here** 
+
+
+## Known technical issues:
+
+- We mantain relsize cache in neon. We need to copy it over to the new cluster during upgrade.
+
+- Fix import of the new version catalog into the new branch. We need to distinguish between catalog and non-catalog files and only skip the latter.
+Now this is done in a very hacky way, that will not work if any catalog files changed their relfilenode before the upgrade.
+**Need compute (postgres) team help here**
+
+- We need to update XIDs in the new version controlfile and skip SLRU files during timeline import. See copy_xact_xlog_xid() for details.
+
+- Proablby we need to pass some options to pg_upgrade. Same options that we use for initdb and start (i.e. locale)
+
+- We need to teach storage to handle the gap in the LSN space between the old branch end and new branch start for the scenario where `restore_lsn R` > `branch_lsn |`. See `~~~~~` on the picture, imagine case, where it is larger than `*****`.
+**Need storage team help here** to estimate the complexity of this task.
+
+- We need to run the "pg_upgrade microservice" somewhere.
+Possible options: 
+    - special mode of compute image (requires multi-version compute image).
+    - separate microservice running on pageserver machine. Synchronization with old running compute will be complicated here.
+
+## Open questions:
+
+**Need product, storage, compute and cplane teams help here**
+
+- Do we want to implement a full switch to the new version branch? Or do we want to start with "Test new version in a branch" feature? 
+Do we see product value in this feature?
+It is simpler to implenent, but we need to ensure that users won't use this new-version branch in production. How to do this?
+
+- Do we want to switch main endpoint to use upgraded branch? What if we upgraded from non-main branch?
+
+- How to restrict write access to the old branch after the siwtch?
+
+- How to communicate this pg_upgade switch to the user in UI / API?
+
+- How can we test the data correctness after the upgrade?
+
+- At what moment should we run recommended post-upgrade scripts?
+
+- How to handle extensions? This issue boils down to multi-version compute image.
--- a/libs/compute_api/Cargo.toml
+++ b/libs/compute_api/Cargo.toml
@@ -8,7 +8,6 @@ license.workspace = true
 anyhow.workspace = true
 chrono.workspace = true
 serde.workspace = true
-serde_with.workspace = true
 serde_json.workspace = true
 regex.workspace = true

--- a/libs/consumption_metrics/Cargo.toml
+++ b/libs/consumption_metrics/Cargo.toml
@@ -5,9 +5,6 @@ edition = "2021"
 license = "Apache-2.0"

 [dependencies]
-anyhow.workspace = true
 chrono = { workspace = true, features = ["serde"] }
 rand.workspace = true
 serde.workspace = true
-serde_with.workspace = true
-utils.workspace = true
--- a/libs/consumption_metrics/src/lib.rs
+++ b/libs/consumption_metrics/src/lib.rs
@@ -5,7 +5,7 @@ use chrono::{DateTime, Utc};
 use rand::Rng;
 use serde::{Deserialize, Serialize};

-#[derive(Serialize, serde::Deserialize, Debug, Clone, Copy, Eq, PartialEq, Ord, PartialOrd)]
+#[derive(Serialize, Deserialize, Debug, Clone, Copy, Eq, PartialEq, Ord, PartialOrd)]
 #[serde(tag = "type")]
 pub enum EventType {
    #[serde(rename = "absolute")]
@@ -107,7 +107,7 @@ pub const CHUNK_SIZE: usize = 1000;

 // Just a wrapper around a slice of events
 // to serialize it as `{"events" : [ ] }
-#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(serde::Serialize, Deserialize)]
 pub struct EventChunk<'a, T: Clone> {
    pub events: std::borrow::Cow<'a, [T]>,
 }
--- a/libs/desim/Cargo.toml
+++ b/libs/desim/Cargo.toml
@@ -12,5 +12,4 @@ bytes.workspace = true
 utils.workspace = true
 parking_lot.workspace = true
 hex.workspace = true
-scopeguard.workspace = true
 smallvec = { workspace = true, features = ["write"] }
--- a/libs/pageserver_api/src/key.rs
+++ b/libs/pageserver_api/src/key.rs
@@ -1,8 +1,8 @@
 use anyhow::{bail, Result};
 use byteorder::{ByteOrder, BE};
 use postgres_ffi::relfile_utils::{FSM_FORKNUM, VISIBILITYMAP_FORKNUM};
+use postgres_ffi::Oid;
 use postgres_ffi::RepOriginId;
-use postgres_ffi::{Oid, TransactionId};
 use serde::{Deserialize, Serialize};
 use std::{fmt, ops::Range};

@@ -350,7 +350,17 @@ impl Key {
 // 02 00000000 00000000 00000000 00   00000000
 //
 // TwoPhaseFile:
-// 02 00000000 00000000 00000000 00   XID
+//
+// 02 00000000 00000000 00XXXXXX XX   XXXXXXXX
+//
+//                        \______XID_________/
+//
+// The 64-bit XID is stored a little awkwardly in field6, field5 and
+// field4. PostgreSQL v16 and below only stored a 32-bit XID, which
+// fit completely in field6, but starting with PostgreSQL v17, a full
+// 64-bit XID is used. Most pageserver code that accesses
+// TwoPhaseFiles now deals with 64-bit XIDs even on v16, the high bits
+// are just unused.
 //
 // ControlFile:
 // 03 00000000 00000000 00000000 00   00000000
@@ -582,35 +592,36 @@ pub const TWOPHASEDIR_KEY: Key = Key {
 };

 #[inline(always)]
-pub fn twophase_file_key(xid: TransactionId) -> Key {
+pub fn twophase_file_key(xid: u64) -> Key {
    Key {
        field1: 0x02,
        field2: 0,
        field3: 0,
-        field4: 0,
-        field5: 0,
-        field6: xid,
+        field4: ((xid & 0xFFFFFF0000000000) >> 40) as u32,
+        field5: ((xid & 0x000000FF00000000) >> 32) as u8,
+        field6: (xid & 0x00000000FFFFFFFF) as u32,
    }
 }

 #[inline(always)]
-pub fn twophase_key_range(xid: TransactionId) -> Range<Key> {
+pub fn twophase_key_range(xid: u64) -> Range<Key> {
+    // 64-bit XIDs really should not overflow
    let (next_xid, overflowed) = xid.overflowing_add(1);

    Key {
        field1: 0x02,
        field2: 0,
        field3: 0,
-        field4: 0,
-        field5: 0,
-        field6: xid,
+        field4: ((xid & 0xFFFFFF0000000000) >> 40) as u32,
+        field5: ((xid & 0x000000FF00000000) >> 32) as u8,
+        field6: (xid & 0x00000000FFFFFFFF) as u32,
    }..Key {
        field1: 0x02,
        field2: 0,
-        field3: 0,
-        field4: 0,
-        field5: u8::from(overflowed),
-        field6: next_xid,
+        field3: u32::from(overflowed),
+        field4: ((next_xid & 0xFFFFFF0000000000) >> 40) as u32,
+        field5: ((next_xid & 0x000000FF00000000) >> 32) as u8,
+        field6: (next_xid & 0x00000000FFFFFFFF) as u32,
    }
 }

--- a/libs/pageserver_api/src/models.rs
+++ b/libs/pageserver_api/src/models.rs
@@ -495,7 +495,7 @@ pub struct CompactionAlgorithmSettings {
    pub kind: CompactionAlgorithm,
 }

-#[derive(Debug, PartialEq, Eq, Clone, serde::Deserialize, serde::Serialize)]
+#[derive(Debug, PartialEq, Eq, Clone, Deserialize, Serialize)]
 #[serde(tag = "mode", rename_all = "kebab-case", deny_unknown_fields)]
 pub enum L0FlushConfig {
    #[serde(rename_all = "snake_case")]
--- a/libs/pageserver_api/src/models/utilization.rs
+++ b/libs/pageserver_api/src/models/utilization.rs
@@ -89,8 +89,19 @@ impl PageserverUtilization {

    /// If a node is currently hosting more work than it can comfortably handle.  This does not indicate that
    /// it will fail, but it is a strong signal that more work should not be added unless there is no alternative.
+    ///
+    /// When a node is overloaded, we may override soft affinity preferences and do things like scheduling
+    /// into a node in a less desirable AZ, if all the nodes in the preferred AZ are overloaded.
    pub fn is_overloaded(score: RawScore) -> bool {
-        score >= Self::UTILIZATION_FULL
+        // Why the factor of two?  This is unscientific but reflects behavior of real systems:
+        // - In terms of shard counts, a node's preferred max count is a soft limit intended to keep
+        //   startup and housekeeping jobs nice and responsive.  We can go to double this limit if needed
+        //   until some more nodes are deployed.
+        // - In terms of disk space, the node's utilization heuristic assumes every tenant needs to
+        //   hold its biggest timeline fully on disk, which is tends to be an over estimate when
+        //   some tenants are very idle and have dropped layers from disk.  In practice going up to
+        //   double is generally better than giving up and scheduling in a sub-optimal AZ.
+        score >= 2 * Self::UTILIZATION_FULL
    }

    pub fn adjust_shard_count_max(&mut self, shard_count: u32) {
--- a/libs/postgres_backend/Cargo.toml
+++ b/libs/postgres_backend/Cargo.toml
@@ -5,10 +5,8 @@ edition.workspace = true
 license.workspace = true

 [dependencies]
-async-trait.workspace = true
 anyhow.workspace = true
 bytes.workspace = true
-futures.workspace = true
 rustls.workspace = true
 serde.workspace = true
 thiserror.workspace = true
--- a/libs/postgres_backend/src/lib.rs
+++ b/libs/postgres_backend/src/lib.rs
@@ -81,17 +81,16 @@ pub fn is_expected_io_error(e: &io::Error) -> bool {
    )
 }

-#[async_trait::async_trait]
 pub trait Handler<IO> {
    /// Handle single query.
    /// postgres_backend will issue ReadyForQuery after calling this (this
    /// might be not what we want after CopyData streaming, but currently we don't
    /// care). It will also flush out the output buffer.
-    async fn process_query(
+    fn process_query(
        &mut self,
        pgb: &mut PostgresBackend<IO>,
        query_string: &str,
-    ) -> Result<(), QueryError>;
+    ) -> impl Future<Output = Result<(), QueryError>>;

    /// Called on startup packet receival, allows to process params.
    ///
@@ -281,16 +280,6 @@ pub struct PostgresBackend<IO> {

 pub type PostgresBackendTCP = PostgresBackend<tokio::net::TcpStream>;

-pub fn query_from_cstring(query_string: Bytes) -> Vec<u8> {
-    let mut query_string = query_string.to_vec();
-    if let Some(ch) = query_string.last() {
-        if *ch == 0 {
-            query_string.pop();
-        }
-    }
-    query_string
-}
-
 /// Cast a byte slice to a string slice, dropping null terminator if there's one.
 fn cstr_to_str(bytes: &[u8]) -> anyhow::Result<&str> {
    let without_null = bytes.strip_suffix(&[0]).unwrap_or(bytes);
--- a/libs/postgres_backend/tests/simple_select.rs
+++ b/libs/postgres_backend/tests/simple_select.rs
@@ -23,7 +23,6 @@ async fn make_tcp_pair() -> (TcpStream, TcpStream) {

 struct TestHandler {}

-#[async_trait::async_trait]
 impl<IO: AsyncRead + AsyncWrite + Unpin + Send> Handler<IO> for TestHandler {
    // return single col 'hey' for any query
    async fn process_query(
--- a/libs/postgres_ffi/Cargo.toml
+++ b/libs/postgres_ffi/Cargo.toml
@@ -5,13 +5,10 @@ edition.workspace = true
 license.workspace = true

 [dependencies]
-rand.workspace = true
 regex.workspace = true
 bytes.workspace = true
-byteorder.workspace = true
 anyhow.workspace = true
 crc32c.workspace = true
-hex.workspace = true
 once_cell.workspace = true
 log.workspace = true
 memoffset.workspace = true
--- a/libs/postgres_ffi/build.rs
+++ b/libs/postgres_ffi/build.rs
@@ -56,7 +56,7 @@ fn main() -> anyhow::Result<()> {
        PathBuf::from("pg_install")
    };

-    for pg_version in &["v14", "v15", "v16"] {
+    for pg_version in &["v14", "v15", "v16", "v17"] {
        let mut pg_install_dir_versioned = pg_install_dir.join(pg_version);
        if pg_install_dir_versioned.is_relative() {
            let cwd = env::current_dir().context("Failed to get current_dir")?;
--- a/libs/postgres_ffi/src/lib.rs
+++ b/libs/postgres_ffi/src/lib.rs
@@ -57,6 +57,7 @@ macro_rules! for_all_postgres_versions {
        $macro!(v14);
        $macro!(v15);
        $macro!(v16);
+        $macro!(v17);
    };
 }

@@ -91,6 +92,7 @@ macro_rules! dispatch_pgversion {
                14 : v14,
                15 : v15,
                16 : v16,
+                17 : v17,
            ]
        )
    };
@@ -121,6 +123,7 @@ macro_rules! enum_pgversion_dispatch {
                V14 : v14,
                V15 : v15,
                V16 : v16,
+                V17 : v17,
            ]
        )
    };
@@ -150,6 +153,7 @@ macro_rules! enum_pgversion {
                V14 : v14,
                V15 : v15,
                V16 : v16,
+                V17 : v17,
            ]
        }
    };
@@ -162,6 +166,7 @@ macro_rules! enum_pgversion {
                V14 : v14,
                V15 : v15,
                V16 : v16,
+                V17 : v17,
            ]
        }
    };
--- a/libs/postgres_ffi/src/pg_constants.rs
+++ b/libs/postgres_ffi/src/pg_constants.rs
@@ -9,8 +9,8 @@
 //! comments on them.
 //!

+use crate::PageHeaderData;
 use crate::BLCKSZ;
-use crate::{PageHeaderData, XLogRecord};

 //
 // From pg_tablespace_d.h
@@ -152,6 +152,9 @@ pub const XLH_UPDATE_OLD_ALL_VISIBLE_CLEARED: u8 = (1 << 0) as u8;
 pub const XLH_UPDATE_NEW_ALL_VISIBLE_CLEARED: u8 = (1 << 1) as u8;
 pub const XLH_DELETE_ALL_VISIBLE_CLEARED: u8 = (1 << 0) as u8;

+// From heapam_xlog.h
+pub const XLOG_HEAP2_REWRITE: u8 = 0x00;
+
 // From replication/message.h
 pub const XLOG_LOGICAL_MESSAGE: u8 = 0x00;

@@ -191,8 +194,6 @@ pub const XLR_RMGR_INFO_MASK: u8 = 0xF0;
 pub const XLOG_TBLSPC_CREATE: u8 = 0x00;
 pub const XLOG_TBLSPC_DROP: u8 = 0x10;

-pub const SIZEOF_XLOGRECORD: u32 = size_of::<XLogRecord>() as u32;
-
 //
 // from xlogrecord.h
 //
@@ -216,18 +217,21 @@ pub const BKPIMAGE_HAS_HOLE: u8 = 0x01; /* page image has "hole" */
 /* From transam.h */
 pub const FIRST_NORMAL_TRANSACTION_ID: u32 = 3;
 pub const INVALID_TRANSACTION_ID: u32 = 0;
-pub const FIRST_BOOTSTRAP_OBJECT_ID: u32 = 12000;
-pub const FIRST_NORMAL_OBJECT_ID: u32 = 16384;

+/* pg_control.h */
 pub const XLOG_CHECKPOINT_SHUTDOWN: u8 = 0x00;
 pub const XLOG_CHECKPOINT_ONLINE: u8 = 0x10;
-pub const XLP_FIRST_IS_CONTRECORD: u16 = 0x0001;
-pub const XLP_LONG_HEADER: u16 = 0x0002;
+pub const XLOG_PARAMETER_CHANGE: u8 = 0x60;
+pub const XLOG_END_OF_RECOVERY: u8 = 0x90;

 /* From xlog.h */
 pub const XLOG_REPLORIGIN_SET: u8 = 0x00;
 pub const XLOG_REPLORIGIN_DROP: u8 = 0x10;

+/* xlog_internal.h */
+pub const XLP_FIRST_IS_CONTRECORD: u16 = 0x0001;
+pub const XLP_LONG_HEADER: u16 = 0x0002;
+
 /* From replication/slot.h */
 pub const REPL_SLOT_ON_DISK_OFFSETOF_RESTART_LSN: usize = 4*4  /* offset of `slotdata` in ReplicationSlotOnDisk  */
   + 64 /* NameData */  + 4*4;
@@ -245,33 +249,6 @@ pub const VM_HEAPBLOCKS_PER_PAGE: u32 =
 /* From origin.c */
 pub const REPLICATION_STATE_MAGIC: u32 = 0x1257DADE;

-// List of subdirectories inside pgdata.
-// Copied from src/bin/initdb/initdb.c
-pub const PGDATA_SUBDIRS: [&str; 22] = [
-    "global",
-    "pg_wal/archive_status",
-    "pg_commit_ts",
-    "pg_dynshmem",
-    "pg_notify",
-    "pg_serial",
-    "pg_snapshots",
-    "pg_subtrans",
-    "pg_twophase",
-    "pg_multixact",
-    "pg_multixact/members",
-    "pg_multixact/offsets",
-    "base",
-    "base/1",
-    "pg_replslot",
-    "pg_tblspc",
-    "pg_stat",
-    "pg_stat_tmp",
-    "pg_xact",
-    "pg_logical",
-    "pg_logical/snapshots",
-    "pg_logical/mappings",
-];
-
 // Don't include postgresql.conf as it is inconvenient on node start:
 // we need postgresql.conf before basebackup to synchronize safekeepers
 // so no point in overwriting it during backup restore. Rest of the files
--- a/libs/postgres_ffi/src/pg_constants_v14.rs
+++ b/libs/postgres_ffi/src/pg_constants_v14.rs
@@ -5,6 +5,33 @@ pub const BKPIMAGE_IS_COMPRESSED: u8 = 0x02; /* page image is compressed */
 pub const BKPIMAGE_APPLY: u8 = 0x04; /* page image should be restored during replay */
 pub const SIZEOF_RELMAPFILE: usize = 512; /* sizeof(RelMapFile) in relmapper.c */

+// List of subdirectories inside pgdata.
+// Copied from src/bin/initdb/initdb.c
+pub const PGDATA_SUBDIRS: [&str; 22] = [
+    "global",
+    "pg_wal/archive_status",
+    "pg_commit_ts",
+    "pg_dynshmem",
+    "pg_notify",
+    "pg_serial",
+    "pg_snapshots",
+    "pg_subtrans",
+    "pg_twophase",
+    "pg_multixact",
+    "pg_multixact/members",
+    "pg_multixact/offsets",
+    "base",
+    "base/1",
+    "pg_replslot",
+    "pg_tblspc",
+    "pg_stat",
+    "pg_stat_tmp",
+    "pg_xact",
+    "pg_logical",
+    "pg_logical/snapshots",
+    "pg_logical/mappings",
+];
+
 pub fn bkpimg_is_compressed(bimg_info: u8) -> bool {
    (bimg_info & BKPIMAGE_IS_COMPRESSED) != 0
 }
--- a/libs/postgres_ffi/src/pg_constants_v15.rs
+++ b/libs/postgres_ffi/src/pg_constants_v15.rs
@@ -11,6 +11,8 @@ pub const BKPIMAGE_COMPRESS_ZSTD: u8 = 0x10; /* page image is compressed */

 pub const SIZEOF_RELMAPFILE: usize = 512; /* sizeof(RelMapFile) in relmapper.c */

+pub use super::super::v14::bindings::PGDATA_SUBDIRS;
+
 pub fn bkpimg_is_compressed(bimg_info: u8) -> bool {
    const ANY_COMPRESS_FLAG: u8 = BKPIMAGE_COMPRESS_PGLZ | BKPIMAGE_COMPRESS_LZ4 | BKPIMAGE_COMPRESS_ZSTD;

--- a/libs/postgres_ffi/src/pg_constants_v16.rs
+++ b/libs/postgres_ffi/src/pg_constants_v16.rs
@@ -11,6 +11,8 @@ pub const BKPIMAGE_COMPRESS_ZSTD: u8 = 0x10; /* page image is compressed */

 pub const SIZEOF_RELMAPFILE: usize = 524; /* sizeof(RelMapFile) in relmapper.c */

+pub use super::super::v14::bindings::PGDATA_SUBDIRS;
+
 pub fn bkpimg_is_compressed(bimg_info: u8) -> bool {
    const ANY_COMPRESS_FLAG: u8 = BKPIMAGE_COMPRESS_PGLZ | BKPIMAGE_COMPRESS_LZ4 | BKPIMAGE_COMPRESS_ZSTD;

--- a/libs/postgres_ffi/src/pg_constants_v17.rs
+++ b/libs/postgres_ffi/src/pg_constants_v17.rs
@@ -0,0 +1,55 @@
+pub const XACT_XINFO_HAS_DROPPED_STATS: u32 = 1u32 << 8;
+
+pub const XLOG_DBASE_CREATE_FILE_COPY: u8 = 0x00;
+pub const XLOG_DBASE_CREATE_WAL_LOG: u8 = 0x10;
+pub const XLOG_DBASE_DROP: u8 = 0x20;
+
+pub const BKPIMAGE_APPLY: u8 = 0x02; /* page image should be restored during replay */
+pub const BKPIMAGE_COMPRESS_PGLZ: u8 = 0x04; /* page image is compressed */
+pub const BKPIMAGE_COMPRESS_LZ4: u8 = 0x08; /* page image is compressed */
+pub const BKPIMAGE_COMPRESS_ZSTD: u8 = 0x10; /* page image is compressed */
+
+pub const SIZEOF_RELMAPFILE: usize = 524; /* sizeof(RelMapFile) in relmapper.c */
+
+// List of subdirectories inside pgdata.
+// Copied from src/bin/initdb/initdb.c
+pub const PGDATA_SUBDIRS: [&str; 23] = [
+    "global",
+    "pg_wal/archive_status",
+    "pg_wal/summaries",
+    "pg_commit_ts",
+    "pg_dynshmem",
+    "pg_notify",
+    "pg_serial",
+    "pg_snapshots",
+    "pg_subtrans",
+    "pg_twophase",
+    "pg_multixact",
+    "pg_multixact/members",
+    "pg_multixact/offsets",
+    "base",
+    "base/1",
+    "pg_replslot",
+    "pg_tblspc",
+    "pg_stat",
+    "pg_stat_tmp",
+    "pg_xact",
+    "pg_logical",
+    "pg_logical/snapshots",
+    "pg_logical/mappings",
+];
+
+pub fn bkpimg_is_compressed(bimg_info: u8) -> bool {
+    const ANY_COMPRESS_FLAG: u8 = BKPIMAGE_COMPRESS_PGLZ | BKPIMAGE_COMPRESS_LZ4 | BKPIMAGE_COMPRESS_ZSTD;
+
+    (bimg_info & ANY_COMPRESS_FLAG) != 0
+}
+
+
+pub const XLOG_HEAP2_PRUNE_ON_ACCESS: u8 = 0x10;
+pub const XLOG_HEAP2_PRUNE_VACUUM_SCAN: u8 = 0x20;
+pub const XLOG_HEAP2_PRUNE_VACUUM_CLEANUP: u8 = 0x30;
+
+
+pub const XLOG_OVERWRITE_CONTRECORD: u8 = 0xD0;
+pub const XLOG_CHECKPOINT_REDO: u8 = 0xE0;
--- a/libs/postgres_ffi/src/xlog_utils.rs
+++ b/libs/postgres_ffi/src/xlog_utils.rs
@@ -30,7 +30,7 @@ use std::fs::File;
 use std::io::prelude::*;
 use std::io::ErrorKind;
 use std::io::SeekFrom;
-use std::path::{Path, PathBuf};
+use std::path::Path;
 use std::time::SystemTime;
 use utils::bin_ser::DeserializeError;
 use utils::bin_ser::SerializeError;
@@ -260,13 +260,6 @@ fn open_wal_segment(seg_file_path: &Path) -> anyhow::Result<Option<File>> {
    }
 }

-pub fn main() {
-    let mut data_dir = PathBuf::new();
-    data_dir.push(".");
-    let wal_end = find_end_of_wal(&data_dir, WAL_SEGMENT_SIZE, Lsn(0)).unwrap();
-    println!("wal_end={:?}", wal_end);
-}
-
 impl XLogRecord {
    pub fn from_slice(buf: &[u8]) -> Result<XLogRecord, DeserializeError> {
        use utils::bin_ser::LeSer;
--- a/libs/postgres_ffi/wal_craft/Cargo.toml
+++ b/libs/postgres_ffi/wal_craft/Cargo.toml
@@ -9,7 +9,6 @@ anyhow.workspace = true
 clap.workspace = true
 env_logger.workspace = true
 log.workspace = true
-once_cell.workspace = true
 postgres.workspace = true
 postgres_ffi.workspace = true
 camino-tempfile.workspace = true
--- a/libs/postgres_ffi/wal_craft/src/lib.rs
+++ b/libs/postgres_ffi/wal_craft/src/lib.rs
@@ -26,7 +26,6 @@ macro_rules! xlog_utils_test {

 postgres_ffi::for_all_postgres_versions! { xlog_utils_test }

-#[derive(Debug, Clone, PartialEq, Eq)]
 pub struct Conf {
    pub pg_version: u32,
    pub pg_distrib_dir: PathBuf,
@@ -53,7 +52,7 @@ impl Conf {

        #[allow(clippy::manual_range_patterns)]
        match self.pg_version {
-            14 | 15 | 16 => Ok(path.join(format!("v{}", self.pg_version))),
+            14 | 15 | 16 | 17 => Ok(path.join(format!("v{}", self.pg_version))),
            _ => bail!("Unsupported postgres version: {}", self.pg_version),
        }
    }
--- a/libs/pq_proto/Cargo.toml
+++ b/libs/pq_proto/Cargo.toml
@@ -8,10 +8,8 @@ license.workspace = true
 bytes.workspace = true
 byteorder.workspace = true
 itertools.workspace = true
-pin-project-lite.workspace = true
 postgres-protocol.workspace = true
 rand.workspace = true
 tokio = { workspace = true, features = ["io-util"] }
-tracing.workspace = true
 thiserror.workspace = true
 serde.workspace = true
--- a/libs/remote_storage/Cargo.toml
+++ b/libs/remote_storage/Cargo.toml
@@ -13,14 +13,11 @@ aws-smithy-async.workspace = true
 aws-smithy-types.workspace = true
 aws-config.workspace = true
 aws-sdk-s3.workspace = true
-aws-credential-types.workspace = true
 bytes.workspace = true
 camino = { workspace = true, features = ["serde1"] }
-humantime.workspace = true
 humantime-serde.workspace = true
 hyper = { workspace = true, features = ["stream"] }
 futures.workspace = true
-rand.workspace = true
 serde.workspace = true
 serde_json.workspace = true
 tokio = { workspace = true, features = ["sync", "fs", "io-util"] }
--- a/libs/remote_storage/src/lib.rs
+++ b/libs/remote_storage/src/lib.rs
@@ -127,10 +127,6 @@ impl RemotePath {
        &self.0
    }

-    pub fn extension(&self) -> Option<&str> {
-        self.0.extension()
-    }
-
    pub fn strip_prefix(&self, p: &RemotePath) -> Result<&Utf8Path, std::path::StripPrefixError> {
        self.0.strip_prefix(&p.0)
    }
--- a/libs/safekeeper_api/Cargo.toml
+++ b/libs/safekeeper_api/Cargo.toml
@@ -6,6 +6,5 @@ license.workspace = true

 [dependencies]
 serde.workspace = true
-serde_with.workspace = true
 const_format.workspace = true
 utils.workspace = true
--- a/libs/tracing-utils/Cargo.toml
+++ b/libs/tracing-utils/Cargo.toml
@@ -9,8 +9,9 @@ hyper.workspace = true
 opentelemetry = { workspace = true, features=["rt-tokio"] }
 opentelemetry-otlp = { workspace = true, default-features=false, features = ["http-proto", "trace", "http", "reqwest-client"] }
 opentelemetry-semantic-conventions.workspace = true
-reqwest = { workspace = true, default-features = false, features = ["rustls-tls"] }
 tokio = { workspace = true, features = ["rt", "rt-multi-thread"] }
 tracing.workspace = true
 tracing-opentelemetry.workspace = true
-tracing-subscriber.workspace = true
+
+[dev-dependencies]
+tracing-subscriber.workspace = true    # For examples in docs
--- a/libs/utils/Cargo.toml
+++ b/libs/utils/Cargo.toml
@@ -42,7 +42,6 @@ tracing.workspace = true
 tracing-error.workspace = true
 tracing-subscriber = { workspace = true, features = ["json", "registry"] }
 rand.workspace = true
-serde_with.workspace = true
 strum.workspace = true
 strum_macros.workspace = true
 url.workspace = true
--- a/libs/utils/src/accum.rs
+++ b/libs/utils/src/accum.rs
@@ -1,33 +0,0 @@
-/// A helper to "accumulate" a value similar to `Iterator::reduce`, but lets you
-/// feed the accumulated values by calling the 'accum' function, instead of having an
-/// iterator.
-///
-/// For example, to calculate the smallest value among some integers:
-///
-/// ```
-/// use utils::accum::Accum;
-///
-/// let values = [1, 2, 3];
-///
-/// let mut min_value: Accum<u32> = Accum(None);
-/// for new_value in &values {
-///     min_value.accum(std::cmp::min, *new_value);
-/// }
-///
-/// assert_eq!(min_value.0.unwrap(), 1);
-/// ```
-pub struct Accum<T>(pub Option<T>);
-impl<T: Copy> Accum<T> {
-    pub fn accum<F>(&mut self, func: F, new_value: T)
-    where
-        F: FnOnce(T, T) -> T,
-    {
-        // If there is no previous value, just store the new value.
-        // Otherwise call the function to decide which one to keep.
-        self.0 = Some(if let Some(accum) = self.0 {
-            func(accum, new_value)
-        } else {
-            new_value
-        });
-    }
-}
--- a/libs/utils/src/id.rs
+++ b/libs/utils/src/id.rs
@@ -88,12 +88,6 @@ impl<'de> Deserialize<'de> for Id {
 }

 impl Id {
-    pub fn get_from_buf(buf: &mut impl bytes::Buf) -> Id {
-        let mut arr = [0u8; 16];
-        buf.copy_to_slice(&mut arr);
-        Id::from(arr)
-    }
-
    pub fn from_slice(src: &[u8]) -> Result<Id, IdError> {
        if src.len() != 16 {
            return Err(IdError::SliceParseError(src.len()));
@@ -179,10 +173,6 @@ impl fmt::Debug for Id {
 macro_rules! id_newtype {
    ($t:ident) => {
        impl $t {
-            pub fn get_from_buf(buf: &mut impl bytes::Buf) -> $t {
-                $t(Id::get_from_buf(buf))
-            }
-
            pub fn from_slice(src: &[u8]) -> Result<$t, IdError> {
                Ok($t(Id::from_slice(src)?))
            }
--- a/libs/utils/src/lib.rs
+++ b/libs/utils/src/lib.rs
@@ -43,16 +43,9 @@ pub mod logging;
 pub mod lock_file;
 pub mod pid_file;

-// Misc
-pub mod accum;
-pub mod shutdown;
-
 // Utility for binding TcpListeners with proper socket options.
 pub mod tcp_listener;

-// Utility for putting a raw file descriptor into non-blocking mode
-pub mod nonblock;
-
 // Default signal handling
 pub mod sentry_init;
 pub mod signals;
--- a/libs/utils/src/lsn.rs
+++ b/libs/utils/src/lsn.rs
@@ -1,6 +1,5 @@
 #![warn(missing_docs)]

-use camino::Utf8Path;
 use serde::{de::Visitor, Deserialize, Serialize};
 use std::fmt;
 use std::ops::{Add, AddAssign};
@@ -145,14 +144,6 @@ impl Lsn {
        i128::from(self.0) - i128::from(other)
    }

-    /// Parse an LSN from a filename in the form `0000000000000000`
-    pub fn from_filename<F>(filename: F) -> Result<Self, LsnParseError>
-    where
-        F: AsRef<Utf8Path>,
-    {
-        Lsn::from_hex(filename.as_ref().as_str())
-    }
-
    /// Parse an LSN from a string in the form `0000000000000000`
    pub fn from_hex<S>(s: S) -> Result<Self, LsnParseError>
    where
--- a/libs/utils/src/nonblock.rs
+++ b/libs/utils/src/nonblock.rs
@@ -1,17 +0,0 @@
-use nix::fcntl::{fcntl, OFlag, F_GETFL, F_SETFL};
-use std::os::unix::io::RawFd;
-
-/// Put a file descriptor into non-blocking mode
-pub fn set_nonblock(fd: RawFd) -> Result<(), std::io::Error> {
-    let bits = fcntl(fd, F_GETFL)?;
-
-    // If F_GETFL returns some unknown bits, they should be valid
-    // for passing back to F_SETFL, too. If we left them out, the F_SETFL
-    // would effectively clear them, which is not what we want.
-    let mut flags = OFlag::from_bits_retain(bits);
-    flags |= OFlag::O_NONBLOCK;
-
-    fcntl(fd, F_SETFL(flags))?;
-
-    Ok(())
-}
--- a/libs/utils/src/shutdown.rs
+++ b/libs/utils/src/shutdown.rs
@@ -1,7 +0,0 @@
-/// Immediately terminate the calling process without calling
-/// atexit callbacks, C runtime destructors etc. We mainly use
-/// this to protect coverage data from concurrent writes.
-pub fn exit_now(code: u8) -> ! {
-    // SAFETY: exiting is safe, the ffi is not safe
-    unsafe { nix::libc::_exit(code as _) };
-}
--- a/libs/utils/src/vec_map.rs
+++ b/libs/utils/src/vec_map.rs
@@ -120,32 +120,6 @@ impl<K: Ord, V> VecMap<K, V> {
        Ok((None, delta_size))
    }

-    /// Split the map into two.
-    ///
-    /// The left map contains everything before `cutoff` (exclusive).
-    /// Right map contains `cutoff` and everything after (inclusive).
-    pub fn split_at(&self, cutoff: &K) -> (Self, Self)
-    where
-        K: Clone,
-        V: Clone,
-    {
-        let split_idx = self
-            .data
-            .binary_search_by_key(&cutoff, extract_key)
-            .unwrap_or_else(std::convert::identity);
-
-        (
-            VecMap {
-                data: self.data[..split_idx].to_vec(),
-                ordering: self.ordering,
-            },
-            VecMap {
-                data: self.data[split_idx..].to_vec(),
-                ordering: self.ordering,
-            },
-        )
-    }
-
    /// Move items from `other` to the end of `self`, leaving `other` empty.
    /// If the `other` ordering is different from `self` ordering
    /// `ExtendOrderingError` error will be returned.
--- a/libs/vm_monitor/Cargo.toml
+++ b/libs/vm_monitor/Cargo.toml
@@ -15,13 +15,11 @@ anyhow.workspace = true
 axum.workspace = true
 clap.workspace = true
 futures.workspace = true
-inotify.workspace = true
 serde.workspace = true
 serde_json.workspace = true
 sysinfo.workspace = true
 tokio = { workspace = true, features = ["rt-multi-thread"] }
 tokio-postgres.workspace = true
-tokio-stream.workspace = true
 tokio-util.workspace = true
 tracing.workspace = true
 tracing-subscriber.workspace = true
--- a/libs/walproposer/build.rs
+++ b/libs/walproposer/build.rs
@@ -5,6 +5,8 @@ use std::{env, path::PathBuf, process::Command};

 use anyhow::{anyhow, Context};

+const WALPROPOSER_PG_VERSION: &str = "v17";
+
 fn main() -> anyhow::Result<()> {
    // Tell cargo to invalidate the built crate whenever the wrapper changes
    println!("cargo:rerun-if-changed=bindgen_deps.h");
@@ -36,7 +38,10 @@ fn main() -> anyhow::Result<()> {
    // Rebuild crate when libwalproposer.a changes
    println!("cargo:rerun-if-changed={walproposer_lib_search_str}/libwalproposer.a");

-    let pg_config_bin = pg_install_abs.join("v16").join("bin").join("pg_config");
+    let pg_config_bin = pg_install_abs
+        .join(WALPROPOSER_PG_VERSION)
+        .join("bin")
+        .join("pg_config");
    let inc_server_path: String = if pg_config_bin.exists() {
        let output = Command::new(pg_config_bin)
            .arg("--includedir-server")
@@ -53,7 +58,7 @@ fn main() -> anyhow::Result<()> {
            .into()
    } else {
        let server_path = pg_install_abs
-            .join("v16")
+            .join(WALPROPOSER_PG_VERSION)
            .join("include")
            .join("postgresql")
            .join("server")
--- a/pageserver/Cargo.toml
+++ b/pageserver/Cargo.toml
@@ -15,7 +15,6 @@ anyhow.workspace = true
 arc-swap.workspace = true
 async-compression.workspace = true
 async-stream.workspace = true
-async-trait.workspace = true
 bit_field.workspace = true
 byteorder.workspace = true
 bytes.workspace = true
@@ -23,12 +22,9 @@ camino.workspace = true
 camino-tempfile.workspace = true
 chrono = { workspace = true, features = ["serde"] }
 clap = { workspace = true, features = ["string"] }
-const_format.workspace = true
 consumption_metrics.workspace = true
 crc32c.workspace = true
-crossbeam-utils.workspace = true
 either.workspace = true
-flate2.workspace = true
 fail.workspace = true
 futures.workspace = true
 git-version.workspace = true
@@ -57,10 +53,6 @@ serde.workspace = true
 serde_json = { workspace = true, features = ["raw_value"] }
 serde_path_to_error.workspace = true
 serde_with.workspace = true
-signal-hook.workspace = true
-smallvec = { workspace = true, features = ["write"] }
-svg_fmt.workspace = true
-sync_wrapper.workspace = true
 sysinfo.workspace = true
 tokio-tar.workspace = true
 thiserror.workspace = true
@@ -73,7 +65,6 @@ tokio-stream.workspace = true
 tokio-util.workspace = true
 toml_edit = { workspace = true, features = [ "serde" ] }
 tracing.workspace = true
-twox-hash.workspace = true
 url.workspace = true
 walkdir.workspace = true
 metrics.workspace = true
--- a/pageserver/compaction/Cargo.toml
+++ b/pageserver/compaction/Cargo.toml
@@ -9,41 +9,19 @@ default = []

 [dependencies]
 anyhow.workspace = true
-async-compression.workspace = true
 async-stream.workspace = true
-byteorder.workspace = true
-bytes.workspace = true
-chrono = { workspace = true, features = ["serde"] }
 clap = { workspace = true, features = ["string"] }
-const_format.workspace = true
-consumption_metrics.workspace = true
-crossbeam-utils.workspace = true
-either.workspace = true
-flate2.workspace = true
-fail.workspace = true
 futures.workspace = true
 git-version.workspace = true
-hex.workspace = true
-humantime.workspace = true
-humantime-serde.workspace = true
 itertools.workspace = true
 once_cell.workspace = true
 pageserver_api.workspace = true
 pin-project-lite.workspace = true
 rand.workspace = true
-smallvec = { workspace = true, features = ["write"] }
 svg_fmt.workspace = true
-sync_wrapper.workspace = true
-thiserror.workspace = true
 tokio = { workspace = true, features = ["process", "sync", "fs", "rt", "io-util", "time"] }
-tokio-io-timeout.workspace = true
-tokio-util.workspace = true
 tracing.workspace = true
-tracing-error.workspace = true
 tracing-subscriber.workspace = true
-url.workspace = true
-walkdir.workspace = true
-metrics.workspace = true
 utils.workspace = true
 workspace_hack.workspace = true

--- a/pageserver/ctl/Cargo.toml
+++ b/pageserver/ctl/Cargo.toml
@@ -8,7 +8,6 @@ license.workspace = true

 [dependencies]
 anyhow.workspace = true
-bytes.workspace = true
 camino.workspace = true
 clap = { workspace = true, features = ["string"] }
 git-version.workspace = true
@@ -24,5 +23,4 @@ toml_edit.workspace = true
 utils.workspace = true
 svg_fmt.workspace = true
 workspace_hack.workspace = true
-serde.workspace = true
 serde_json.workspace = true
--- a/pageserver/ctl/src/layer_map_analyzer.rs
+++ b/pageserver/ctl/src/layer_map_analyzer.rs
@@ -79,16 +79,24 @@ pub(crate) fn parse_filename(name: &str) -> Option<LayerFile> {
        return None;
    }
    let keys: Vec<&str> = split[0].split('-').collect();
-    let mut lsns: Vec<&str> = split[1].split('-').collect();
-    let is_delta = if lsns.len() == 1 {
-        lsns.push(lsns[0]);
+    let lsn_and_opt_generation: Vec<&str> = split[1].split('v').collect();
+    let lsns: Vec<&str> = lsn_and_opt_generation[0].split('-').collect();
+    let the_lsns: [&str; 2];
+
+    /*
+     * Generations add a -vX-XXXXXX postfix, which causes issues when we try to
+     * parse 'vX' as an LSN.
+     */
+    let is_delta = if lsns.len() == 1 || lsns[1].is_empty() {
+        the_lsns = [lsns[0], lsns[0]];
        false
    } else {
+        the_lsns = [lsns[0], lsns[1]];
        true
    };

    let key_range = Key::from_hex(keys[0]).unwrap()..Key::from_hex(keys[1]).unwrap();
-    let lsn_range = Lsn::from_hex(lsns[0]).unwrap()..Lsn::from_hex(lsns[1]).unwrap();
+    let lsn_range = Lsn::from_hex(the_lsns[0]).unwrap()..Lsn::from_hex(the_lsns[1]).unwrap();
    let holes = Vec::new();
    Some(LayerFile {
        key_range,
--- a/pageserver/src/basebackup.rs
+++ b/pageserver/src/basebackup.rs
@@ -30,9 +30,8 @@ use pageserver_api::reltag::{RelTag, SlruKind};

 use postgres_ffi::dispatch_pgversion;
 use postgres_ffi::pg_constants::{DEFAULTTABLESPACE_OID, GLOBALTABLESPACE_OID};
-use postgres_ffi::pg_constants::{PGDATA_SPECIAL_FILES, PGDATA_SUBDIRS, PG_HBA};
+use postgres_ffi::pg_constants::{PGDATA_SPECIAL_FILES, PG_HBA};
 use postgres_ffi::relfile_utils::{INIT_FORKNUM, MAIN_FORKNUM};
-use postgres_ffi::TransactionId;
 use postgres_ffi::XLogFileName;
 use postgres_ffi::PG_TLI;
 use postgres_ffi::{BLCKSZ, RELSEG_SIZE, WAL_SEGMENT_SIZE};
@@ -255,8 +254,11 @@ where

        let lazy_slru_download = self.timeline.get_lazy_slru_download() && !self.full_backup;

+        let pgversion = self.timeline.pg_version;
+        let subdirs = dispatch_pgversion!(pgversion, &pgv::bindings::PGDATA_SUBDIRS[..]);
+
        // Create pgdata subdirs structure
-        for dir in PGDATA_SUBDIRS.iter() {
+        for dir in subdirs.iter() {
            let header = new_tar_header_dir(dir)?;
            self.ar
                .append(&header, &mut io::empty())
@@ -606,7 +608,7 @@ where
    //
    // Extract twophase state files
    //
-    async fn add_twophase_file(&mut self, xid: TransactionId) -> Result<(), BasebackupError> {
+    async fn add_twophase_file(&mut self, xid: u64) -> Result<(), BasebackupError> {
        let img = self
            .timeline
            .get_twophase_file(xid, self.lsn, self.ctx)
@@ -617,7 +619,11 @@ where
        buf.extend_from_slice(&img[..]);
        let crc = crc32c::crc32c(&img[..]);
        buf.put_u32_le(crc);
-        let path = format!("pg_twophase/{:>08X}", xid);
+        let path = if self.timeline.pg_version < 17 {
+            format!("pg_twophase/{:>08X}", xid)
+        } else {
+            format!("pg_twophase/{:>016X}", xid)
+        };
        let header = new_tar_header(&path, buf.len() as u64)?;
        self.ar
            .append(&header, &buf[..])
--- a/pageserver/src/config.rs
+++ b/pageserver/src/config.rs
@@ -13,7 +13,6 @@ use pageserver_api::{
 use remote_storage::{RemotePath, RemoteStorageConfig};
 use std::env;
 use storage_broker::Uri;
-use utils::crashsafe::path_with_suffix_extension;
 use utils::logging::SecretString;

 use once_cell::sync::OnceCell;
@@ -33,7 +32,7 @@ use crate::tenant::storage_layer::inmemory_layer::IndexEntry;
 use crate::tenant::{TENANTS_SEGMENT_NAME, TIMELINES_SEGMENT_NAME};
 use crate::virtual_file;
 use crate::virtual_file::io_engine;
-use crate::{TENANT_HEATMAP_BASENAME, TENANT_LOCATION_CONFIG_NAME, TIMELINE_DELETE_MARK_SUFFIX};
+use crate::{TENANT_HEATMAP_BASENAME, TENANT_LOCATION_CONFIG_NAME};

 /// Global state of pageserver.
 ///
@@ -257,17 +256,6 @@ impl PageServerConf {
            .join(timeline_id.to_string())
    }

-    pub(crate) fn timeline_delete_mark_file_path(
-        &self,
-        tenant_shard_id: TenantShardId,
-        timeline_id: TimelineId,
-    ) -> Utf8PathBuf {
-        path_with_suffix_extension(
-            self.timeline_path(&tenant_shard_id, &timeline_id),
-            TIMELINE_DELETE_MARK_SUFFIX,
-        )
-    }
-
    /// Turns storage remote path of a file into its local path.
    pub fn local_path(&self, remote_path: &RemotePath) -> Utf8PathBuf {
        remote_path.with_base(&self.workdir)
@@ -281,7 +269,7 @@ impl PageServerConf {

        #[allow(clippy::manual_range_patterns)]
        match pg_version {
-            14 | 15 | 16 => Ok(path.join(format!("v{pg_version}"))),
+            14 | 15 | 16 | 17 => Ok(path.join(format!("v{pg_version}"))),
            _ => bail!("Unsupported postgres version: {}", pg_version),
        }
    }
--- a/pageserver/src/consumption_metrics.rs
+++ b/pageserver/src/consumption_metrics.rs
@@ -178,7 +178,7 @@ async fn collect_metrics(
                )
                .await;
                if let Err(e) = res {
-                    tracing::error!("failed to upload to S3: {e:#}");
+                    tracing::error!("failed to upload to remote storage: {e:#}");
                }
            }
        };
--- a/pageserver/src/import_datadir.rs
+++ b/pageserver/src/import_datadir.rs
@@ -580,9 +580,11 @@ async fn import_file(
        import_slru(modification, slru, file_path, reader, len, ctx).await?;
        debug!("imported multixact members slru");
    } else if file_path.starts_with("pg_twophase") {
-        let xid = u32::from_str_radix(file_name.as_ref(), 16)?;
-
        let bytes = read_all_bytes(reader).await?;
+
+        // In PostgreSQL v17, this is a 64-bit FullTransactionid. In previous versions,
+        // it's a 32-bit TransactionId, which fits in u64 anyway.
+        let xid = u64::from_str_radix(file_name.as_ref(), 16)?;
        modification
            .put_twophase_file(xid, Bytes::copy_from_slice(&bytes[..]), ctx)
            .await?;
--- a/pageserver/src/metrics.rs
+++ b/pageserver/src/metrics.rs
@@ -1777,7 +1777,7 @@ pub(crate) static SECONDARY_MODE: Lazy<SecondaryModeMetrics> = Lazy::new(|| {
    .expect("failed to define a metric"),
    upload_heatmap_duration: register_histogram!(
        "pageserver_secondary_upload_heatmap_duration",
-        "Time to build and upload a heatmap, including any waiting inside the S3 client"
+        "Time to build and upload a heatmap, including any waiting inside the remote storage client"
    )
    .expect("failed to define a metric"),
    download_heatmap: register_int_counter!(
--- a/pageserver/src/page_service.rs
+++ b/pageserver/src/page_service.rs
@@ -1199,7 +1199,6 @@ impl PageServerHandler {
    }
 }

-#[async_trait::async_trait]
 impl<IO> postgres_backend::Handler<IO> for PageServerHandler
 where
    IO: AsyncRead + AsyncWrite + Send + Sync + Unpin,
--- a/pageserver/src/pgdatadir_mapping.rs
+++ b/pageserver/src/pgdatadir_mapping.rs
@@ -633,7 +633,7 @@ impl Timeline {

    pub(crate) async fn get_twophase_file(
        &self,
-        xid: TransactionId,
+        xid: u64,
        lsn: Lsn,
        ctx: &RequestContext,
    ) -> Result<Bytes, PageReconstructError> {
@@ -646,11 +646,19 @@ impl Timeline {
        &self,
        lsn: Lsn,
        ctx: &RequestContext,
-    ) -> Result<HashSet<TransactionId>, PageReconstructError> {
+    ) -> Result<HashSet<u64>, PageReconstructError> {
        // fetch directory entry
        let buf = self.get(TWOPHASEDIR_KEY, lsn, ctx).await?;

-        Ok(TwoPhaseDirectory::des(&buf)?.xids)
+        if self.pg_version >= 17 {
+            Ok(TwoPhaseDirectoryV17::des(&buf)?.xids)
+        } else {
+            Ok(TwoPhaseDirectory::des(&buf)?
+                .xids
+                .iter()
+                .map(|x| u64::from(*x))
+                .collect())
+        }
    }

    pub(crate) async fn get_control_file(
@@ -902,9 +910,13 @@ impl Timeline {

        // Then pg_twophase
        result.add_key(TWOPHASEDIR_KEY);
-        let buf = self.get(TWOPHASEDIR_KEY, lsn, ctx).await?;
-        let twophase_dir = TwoPhaseDirectory::des(&buf)?;
-        let mut xids: Vec<TransactionId> = twophase_dir.xids.iter().cloned().collect();
+
+        let mut xids: Vec<u64> = self
+            .list_twophase_files(lsn, ctx)
+            .await?
+            .iter()
+            .cloned()
+            .collect();
        xids.sort_unstable();
        for xid in xids {
            result.add_key(twophase_file_key(xid));
@@ -1127,9 +1139,15 @@ impl<'a> DatadirModification<'a> {
        // Create AuxFilesDirectory
        self.init_aux_dir()?;

-        let buf = TwoPhaseDirectory::ser(&TwoPhaseDirectory {
-            xids: HashSet::new(),
-        })?;
+        let buf = if self.tline.pg_version >= 17 {
+            TwoPhaseDirectoryV17::ser(&TwoPhaseDirectoryV17 {
+                xids: HashSet::new(),
+            })
+        } else {
+            TwoPhaseDirectory::ser(&TwoPhaseDirectory {
+                xids: HashSet::new(),
+            })
+        }?;
        self.pending_directory_entries
            .push((DirectoryKind::TwoPhase, 0));
        self.put(TWOPHASEDIR_KEY, Value::Image(buf.into()));
@@ -1205,6 +1223,13 @@ impl<'a> DatadirModification<'a> {
        img: Bytes,
    ) -> anyhow::Result<()> {
        anyhow::ensure!(rel.relnode != 0, RelationError::InvalidRelnode);
+        let key = rel_block_to_key(rel, blknum);
+        if !key.is_valid_key_on_write_path() {
+            anyhow::bail!(
+                "the request contains data not supported by pageserver at {}",
+                key
+            );
+        }
        self.put(rel_block_to_key(rel, blknum), Value::Image(img));
        Ok(())
    }
@@ -1216,14 +1241,34 @@ impl<'a> DatadirModification<'a> {
        blknum: BlockNumber,
        img: Bytes,
    ) -> anyhow::Result<()> {
-        self.put(slru_block_to_key(kind, segno, blknum), Value::Image(img));
+        let key = slru_block_to_key(kind, segno, blknum);
+        if !key.is_valid_key_on_write_path() {
+            anyhow::bail!(
+                "the request contains data not supported by pageserver at {}",
+                key
+            );
+        }
+        self.put(key, Value::Image(img));
        Ok(())
    }

-    pub(crate) fn put_rel_page_image_zero(&mut self, rel: RelTag, blknum: BlockNumber) {
-        self.pending_zero_data_pages
-            .insert(rel_block_to_key(rel, blknum).to_compact());
+    pub(crate) fn put_rel_page_image_zero(
+        &mut self,
+        rel: RelTag,
+        blknum: BlockNumber,
+    ) -> anyhow::Result<()> {
+        anyhow::ensure!(rel.relnode != 0, RelationError::InvalidRelnode);
+        let key = rel_block_to_key(rel, blknum);
+        if !key.is_valid_key_on_write_path() {
+            anyhow::bail!(
+                "the request contains data not supported by pageserver: {} @ {}",
+                key,
+                self.lsn
+            );
+        }
+        self.pending_zero_data_pages.insert(key.to_compact());
        self.pending_bytes += ZERO_PAGE.len();
+        Ok(())
    }

    pub(crate) fn put_slru_page_image_zero(
@@ -1231,10 +1276,18 @@ impl<'a> DatadirModification<'a> {
        kind: SlruKind,
        segno: u32,
        blknum: BlockNumber,
-    ) {
-        self.pending_zero_data_pages
-            .insert(slru_block_to_key(kind, segno, blknum).to_compact());
+    ) -> anyhow::Result<()> {
+        let key = slru_block_to_key(kind, segno, blknum);
+        if !key.is_valid_key_on_write_path() {
+            anyhow::bail!(
+                "the request contains data not supported by pageserver: {} @ {}",
+                key,
+                self.lsn
+            );
+        }
+        self.pending_zero_data_pages.insert(key.to_compact());
        self.pending_bytes += ZERO_PAGE.len();
+        Ok(())
    }

    /// Call this at the end of each WAL record.
@@ -1286,22 +1339,31 @@ impl<'a> DatadirModification<'a> {

    pub async fn put_twophase_file(
        &mut self,
-        xid: TransactionId,
+        xid: u64,
        img: Bytes,
        ctx: &RequestContext,
    ) -> anyhow::Result<()> {
        // Add it to the directory entry
-        let buf = self.get(TWOPHASEDIR_KEY, ctx).await?;
-        let mut dir = TwoPhaseDirectory::des(&buf)?;
-        if !dir.xids.insert(xid) {
-            anyhow::bail!("twophase file for xid {} already exists", xid);
-        }
-        self.pending_directory_entries
-            .push((DirectoryKind::TwoPhase, dir.xids.len()));
-        self.put(
-            TWOPHASEDIR_KEY,
-            Value::Image(Bytes::from(TwoPhaseDirectory::ser(&dir)?)),
-        );
+        let dirbuf = self.get(TWOPHASEDIR_KEY, ctx).await?;
+        let newdirbuf = if self.tline.pg_version >= 17 {
+            let mut dir = TwoPhaseDirectoryV17::des(&dirbuf)?;
+            if !dir.xids.insert(xid) {
+                anyhow::bail!("twophase file for xid {} already exists", xid);
+            }
+            self.pending_directory_entries
+                .push((DirectoryKind::TwoPhase, dir.xids.len()));
+            Bytes::from(TwoPhaseDirectoryV17::ser(&dir)?)
+        } else {
+            let xid = xid as u32;
+            let mut dir = TwoPhaseDirectory::des(&dirbuf)?;
+            if !dir.xids.insert(xid) {
+                anyhow::bail!("twophase file for xid {} already exists", xid);
+            }
+            self.pending_directory_entries
+                .push((DirectoryKind::TwoPhase, dir.xids.len()));
+            Bytes::from(TwoPhaseDirectory::ser(&dir)?)
+        };
+        self.put(TWOPHASEDIR_KEY, Value::Image(newdirbuf));

        self.put(twophase_file_key(xid), Value::Image(img));
        Ok(())
@@ -1604,22 +1666,32 @@ impl<'a> DatadirModification<'a> {
    /// This method is used for marking truncated SLRU files
    pub async fn drop_twophase_file(
        &mut self,
-        xid: TransactionId,
+        xid: u64,
        ctx: &RequestContext,
    ) -> anyhow::Result<()> {
        // Remove it from the directory entry
        let buf = self.get(TWOPHASEDIR_KEY, ctx).await?;
-        let mut dir = TwoPhaseDirectory::des(&buf)?;
+        let newdirbuf = if self.tline.pg_version >= 17 {
+            let mut dir = TwoPhaseDirectoryV17::des(&buf)?;

-        if !dir.xids.remove(&xid) {
-            warn!("twophase file for xid {} does not exist", xid);
-        }
-        self.pending_directory_entries
-            .push((DirectoryKind::TwoPhase, dir.xids.len()));
-        self.put(
-            TWOPHASEDIR_KEY,
-            Value::Image(Bytes::from(TwoPhaseDirectory::ser(&dir)?)),
-        );
+            if !dir.xids.remove(&xid) {
+                warn!("twophase file for xid {} does not exist", xid);
+            }
+            self.pending_directory_entries
+                .push((DirectoryKind::TwoPhase, dir.xids.len()));
+            Bytes::from(TwoPhaseDirectoryV17::ser(&dir)?)
+        } else {
+            let xid: u32 = u32::try_from(xid)?;
+            let mut dir = TwoPhaseDirectory::des(&buf)?;
+
+            if !dir.xids.remove(&xid) {
+                warn!("twophase file for xid {} does not exist", xid);
+            }
+            self.pending_directory_entries
+                .push((DirectoryKind::TwoPhase, dir.xids.len()));
+            Bytes::from(TwoPhaseDirectory::ser(&dir)?)
+        };
+        self.put(TWOPHASEDIR_KEY, Value::Image(newdirbuf));

        // Delete it
        self.delete(twophase_key_range(xid));
@@ -2089,11 +2161,21 @@ struct DbDirectory {
    dbdirs: HashMap<(Oid, Oid), bool>,
 }

+// The format of TwoPhaseDirectory changed in PostgreSQL v17, because the filenames of
+// pg_twophase files was expanded from 32-bit XIDs to 64-bit XIDs.  Previously, the files
+// were named like "pg_twophase/000002E5", now they're like
+// "pg_twophsae/0000000A000002E4".
+
 #[derive(Debug, Serialize, Deserialize)]
 struct TwoPhaseDirectory {
    xids: HashSet<TransactionId>,
 }

+#[derive(Debug, Serialize, Deserialize)]
+struct TwoPhaseDirectoryV17 {
+    xids: HashSet<u64>,
+}
+
 #[derive(Debug, Serialize, Deserialize, Default)]
 struct RelDirectory {
    // Set of relations that exist. (relfilenode, forknum)
--- a/pageserver/src/tenant/storage_layer/image_layer.rs
+++ b/pageserver/src/tenant/storage_layer/image_layer.rs
@@ -38,7 +38,7 @@ use crate::tenant::timeline::GetVectoredError;
 use crate::tenant::vectored_blob_io::{
    BlobFlag, StreamingVectoredReadPlanner, VectoredBlobReader, VectoredRead, VectoredReadPlanner,
 };
-use crate::tenant::{PageReconstructError, Timeline};
+use crate::tenant::PageReconstructError;
 use crate::virtual_file::owned_buffers_io::io_buf_ext::IoBufExt;
 use crate::virtual_file::{self, VirtualFile};
 use crate::{IMAGE_FILE_MAGIC, STORAGE_FORMAT_VERSION, TEMP_FILE_SUFFIX};
@@ -58,7 +58,6 @@ use std::io::SeekFrom;
 use std::ops::Range;
 use std::os::unix::prelude::FileExt;
 use std::str::FromStr;
-use std::sync::Arc;
 use tokio::sync::OnceCell;
 use tokio_stream::StreamExt;
 use tracing::*;
@@ -70,9 +69,7 @@ use utils::{
 };

 use super::layer_name::ImageLayerName;
-use super::{
-    AsLayerDesc, Layer, LayerName, PersistentLayerDesc, ResidentLayer, ValuesReconstructState,
-};
+use super::{AsLayerDesc, LayerName, PersistentLayerDesc, ValuesReconstructState};

 ///
 /// Header stored in the beginning of the file
@@ -800,10 +797,9 @@ impl ImageLayerWriterInner {
    ///
    async fn finish(
        self,
-        timeline: &Arc<Timeline>,
        ctx: &RequestContext,
        end_key: Option<Key>,
-    ) -> anyhow::Result<ResidentLayer> {
+    ) -> anyhow::Result<(PersistentLayerDesc, Utf8PathBuf)> {
        let index_start_blk =
            ((self.blob_writer.size() + PAGE_SZ as u64 - 1) / PAGE_SZ as u64) as u32;

@@ -879,12 +875,9 @@ impl ImageLayerWriterInner {
        // fsync the file
        file.sync_all().await?;

-        // FIXME: why not carry the virtualfile here, it supports renaming?
-        let layer = Layer::finish_creating(self.conf, timeline, desc, &self.path)?;
+        trace!("created image layer {}", self.path);

-        info!("created image layer {}", layer.local_path());
-
-        Ok(layer)
+        Ok((desc, self.path))
    }
 }

@@ -963,24 +956,18 @@ impl ImageLayerWriter {
    ///
    pub(crate) async fn finish(
        mut self,
-        timeline: &Arc<Timeline>,
        ctx: &RequestContext,
-    ) -> anyhow::Result<super::ResidentLayer> {
-        self.inner.take().unwrap().finish(timeline, ctx, None).await
+    ) -> anyhow::Result<(PersistentLayerDesc, Utf8PathBuf)> {
+        self.inner.take().unwrap().finish(ctx, None).await
    }

    /// Finish writing the image layer with an end key, used in [`super::split_writer::SplitImageLayerWriter`]. The end key determines the end of the image layer's covered range and is exclusive.
    pub(super) async fn finish_with_end_key(
        mut self,
-        timeline: &Arc<Timeline>,
        end_key: Key,
        ctx: &RequestContext,
-    ) -> anyhow::Result<super::ResidentLayer> {
-        self.inner
-            .take()
-            .unwrap()
-            .finish(timeline, ctx, Some(end_key))
-            .await
+    ) -> anyhow::Result<(PersistentLayerDesc, Utf8PathBuf)> {
+        self.inner.take().unwrap().finish(ctx, Some(end_key)).await
    }
 }

@@ -1084,7 +1071,7 @@ mod test {
        tenant::{
            config::TenantConf,
            harness::{TenantHarness, TIMELINE_ID},
-            storage_layer::ResidentLayer,
+            storage_layer::{Layer, ResidentLayer},
            vectored_blob_io::StreamingVectoredReadPlanner,
            Tenant, Timeline,
        },
@@ -1155,7 +1142,8 @@ mod test {

                key = key.next();
            }
-            writer.finish(&timeline, &ctx).await.unwrap()
+            let (desc, path) = writer.finish(&ctx).await.unwrap();
+            Layer::finish_creating(tenant.conf, &timeline, desc, &path).unwrap()
        };
        let original_size = resident.metadata().file_size;

@@ -1217,7 +1205,9 @@ mod test {
                .await
                .unwrap();
            let replacement = if wrote_keys > 0 {
-                Some(filtered_writer.finish(&timeline, &ctx).await.unwrap())
+                let (desc, path) = filtered_writer.finish(&ctx).await.unwrap();
+                let resident = Layer::finish_creating(tenant.conf, &timeline, desc, &path).unwrap();
+                Some(resident)
            } else {
                None
            };
@@ -1290,7 +1280,8 @@ mod test {
        for (key, img) in images {
            writer.put_image(key, img, ctx).await?;
        }
-        let img_layer = writer.finish(tline, ctx).await?;
+        let (desc, path) = writer.finish(ctx).await?;
+        let img_layer = Layer::finish_creating(tenant.conf, tline, desc, &path)?;

        Ok::<_, anyhow::Error>(img_layer)
    }
--- a/pageserver/src/tenant/storage_layer/split_writer.rs
+++ b/pageserver/src/tenant/storage_layer/split_writer.rs
@@ -121,11 +121,11 @@ impl SplitImageLayerWriter {
                self.generated_layers
                    .push(SplitWriterResult::Discarded(layer_key));
            } else {
-                self.generated_layers.push(SplitWriterResult::Produced(
-                    prev_image_writer
-                        .finish_with_end_key(tline, key, ctx)
-                        .await?,
-                ));
+                let (desc, path) = prev_image_writer.finish_with_end_key(key, ctx).await?;
+
+                let layer = Layer::finish_creating(self.conf, tline, desc, &path)?;
+                self.generated_layers
+                    .push(SplitWriterResult::Produced(layer));
            }
        }
        self.inner.put_image(key, img, ctx).await
@@ -170,9 +170,9 @@ impl SplitImageLayerWriter {
        if discard(&layer_key).await {
            generated_layers.push(SplitWriterResult::Discarded(layer_key));
        } else {
-            generated_layers.push(SplitWriterResult::Produced(
-                inner.finish_with_end_key(tline, end_key, ctx).await?,
-            ));
+            let (desc, path) = inner.finish_with_end_key(end_key, ctx).await?;
+            let layer = Layer::finish_creating(self.conf, tline, desc, &path)?;
+            generated_layers.push(SplitWriterResult::Produced(layer));
        }
        Ok(generated_layers)
    }
--- a/pageserver/src/tenant/timeline.rs
+++ b/pageserver/src/tenant/timeline.rs
@@ -4013,7 +4013,8 @@ impl Timeline {
        if wrote_keys {
            // Normal path: we have written some data into the new image layer for this
            // partition, so flush it to disk.
-            let image_layer = image_layer_writer.finish(self, ctx).await?;
+            let (desc, path) = image_layer_writer.finish(ctx).await?;
+            let image_layer = Layer::finish_creating(self.conf, self, desc, &path)?;
            Ok(ImageLayerCreationOutcome {
                image: Some(image_layer),
                next_start_key: img_range.end,
@@ -4101,7 +4102,8 @@ impl Timeline {
        if wrote_any_image {
            // Normal path: we have written some data into the new image layer for this
            // partition, so flush it to disk.
-            let image_layer = image_layer_writer.finish(self, ctx).await?;
+            let (desc, path) = image_layer_writer.finish(ctx).await?;
+            let image_layer = Layer::finish_creating(self.conf, self, desc, &path)?;
            Ok(ImageLayerCreationOutcome {
                image: Some(image_layer),
                next_start_key: img_range.end,
@@ -5403,7 +5405,8 @@ impl Timeline {
        for (key, img) in images {
            image_layer_writer.put_image(key, img, ctx).await?;
        }
-        let image_layer = image_layer_writer.finish(self, ctx).await?;
+        let (desc, path) = image_layer_writer.finish(ctx).await?;
+        let image_layer = Layer::finish_creating(self.conf, self, desc, &path)?;

        {
            let mut guard = self.layers.write().await;
--- a/pageserver/src/tenant/timeline/compaction.rs
+++ b/pageserver/src/tenant/timeline/compaction.rs
@@ -563,10 +563,12 @@ impl Timeline {
                .await?;

            if keys_written > 0 {
-                let new_layer = image_layer_writer
-                    .finish(self, ctx)
+                let (desc, path) = image_layer_writer
+                    .finish(ctx)
                    .await
                    .map_err(CompactionError::Other)?;
+                let new_layer = Layer::finish_creating(self.conf, self, desc, &path)
+                    .map_err(CompactionError::Other)?;
                tracing::info!(layer=%new_layer, "Rewrote layer, {} -> {} bytes",
                    layer.metadata().file_size,
                    new_layer.metadata().file_size);
--- a/pageserver/src/tenant/timeline/delete.rs
+++ b/pageserver/src/tenant/timeline/delete.rs
@@ -135,25 +135,6 @@ async fn delete_remote_layers_and_index(timeline: &Timeline) -> anyhow::Result<(
        .context("delete_all")
 }

-// This function removs remaining traces of a timeline on disk.
-// Namely: metadata file, timeline directory, delete mark.
-// Note: io::ErrorKind::NotFound are ignored for metadata and timeline dir.
-// delete mark should be present because it is the last step during deletion.
-// (nothing can fail after its deletion)
-async fn cleanup_remaining_timeline_fs_traces(
-    conf: &PageServerConf,
-    tenant_shard_id: TenantShardId,
-    timeline_id: TimelineId,
-) -> anyhow::Result<()> {
-    // Remove delete mark
-    // TODO: once we are confident that no more exist in the field, remove this
-    // line.  It cleans up a legacy marker file that might in rare cases be present.
-    tokio::fs::remove_file(conf.timeline_delete_mark_file_path(tenant_shard_id, timeline_id))
-        .await
-        .or_else(fs_ext::ignore_not_found)
-        .context("remove delete mark")
-}
-
 /// It is important that this gets called when DeletionGuard is being held.
 /// For more context see comments in [`DeleteTimelineFlow::prepare`]
 async fn remove_timeline_from_tenant(
@@ -194,12 +175,10 @@ async fn remove_timeline_from_tenant(
 /// 7. Delete mark file
 ///
 /// It is resumable from any step in case a crash/restart occurs.
-/// There are three entrypoints to the process:
+/// There are two entrypoints to the process:
 /// 1. [`DeleteTimelineFlow::run`] this is the main one called by a management api handler.
 /// 2. [`DeleteTimelineFlow::resume_deletion`] is called during restarts when local metadata is still present
 ///    and we possibly neeed to continue deletion of remote files.
-/// 3. [`DeleteTimelineFlow::cleanup_remaining_timeline_fs_traces`] is used when we deleted remote
-///    index but still have local metadata, timeline directory and delete mark.
 ///
 /// Note the only other place that messes around timeline delete mark is the logic that scans directory with timelines during tenant load.
 #[derive(Default)]
@@ -311,18 +290,6 @@ impl DeleteTimelineFlow {
        Ok(())
    }

-    #[instrument(skip_all, fields(%timeline_id))]
-    pub async fn cleanup_remaining_timeline_fs_traces(
-        tenant: &Tenant,
-        timeline_id: TimelineId,
-    ) -> anyhow::Result<()> {
-        let r =
-            cleanup_remaining_timeline_fs_traces(tenant.conf, tenant.tenant_shard_id, timeline_id)
-                .await;
-        info!("Done");
-        r
-    }
-
    fn prepare(
        tenant: &Tenant,
        timeline_id: TimelineId,
--- a/pageserver/src/walingest.rs
+++ b/pageserver/src/walingest.rs
@@ -237,6 +237,26 @@ impl WalIngest {
                                .await?;
                        }
                    }
+                } else if pg_version == 17 {
+                    if info == postgres_ffi::v17::bindings::XLOG_DBASE_CREATE_WAL_LOG {
+                        debug!("XLOG_DBASE_CREATE_WAL_LOG: noop");
+                    } else if info == postgres_ffi::v17::bindings::XLOG_DBASE_CREATE_FILE_COPY {
+                        // The XLOG record was renamed between v14 and v15,
+                        // but the record format is the same.
+                        // So we can reuse XlCreateDatabase here.
+                        debug!("XLOG_DBASE_CREATE_FILE_COPY");
+                        let createdb = XlCreateDatabase::decode(&mut buf);
+                        self.ingest_xlog_dbase_create(modification, &createdb, ctx)
+                            .await?;
+                    } else if info == postgres_ffi::v17::bindings::XLOG_DBASE_DROP {
+                        let dropdb = XlDropDatabase::decode(&mut buf);
+                        for tablespace_id in dropdb.tablespace_ids {
+                            trace!("Drop db {}, {}", tablespace_id, dropdb.db_id);
+                            modification
+                                .drop_dbdir(tablespace_id, dropdb.db_id, ctx)
+                                .await?;
+                        }
+                    }
                }
            }
            pg_constants::RM_TBLSPC_ID => {
@@ -246,7 +266,11 @@ impl WalIngest {
                let info = decoded.xl_info & !pg_constants::XLR_INFO_MASK;

                if info == pg_constants::CLOG_ZEROPAGE {
-                    let pageno = buf.get_u32_le();
+                    let pageno = if pg_version < 17 {
+                        buf.get_u32_le()
+                    } else {
+                        buf.get_u64_le() as u32
+                    };
                    let segno = pageno / pg_constants::SLRU_PAGES_PER_SEGMENT;
                    let rpageno = pageno % pg_constants::SLRU_PAGES_PER_SEGMENT;
                    self.put_slru_page_image(
@@ -260,7 +284,7 @@ impl WalIngest {
                    .await?;
                } else {
                    assert!(info == pg_constants::CLOG_TRUNCATE);
-                    let xlrec = XlClogTruncate::decode(&mut buf);
+                    let xlrec = XlClogTruncate::decode(&mut buf, pg_version);
                    self.ingest_clog_truncate_record(modification, &xlrec, ctx)
                        .await?;
                }
@@ -299,12 +323,21 @@ impl WalIngest {
                        parsed_xact.xid,
                        lsn,
                    );
-                    modification
-                        .drop_twophase_file(parsed_xact.xid, ctx)
-                        .await?;
+
+                    let xid: u64 = if pg_version >= 17 {
+                        self.adjust_to_full_transaction_id(parsed_xact.xid)?
+                    } else {
+                        parsed_xact.xid as u64
+                    };
+                    modification.drop_twophase_file(xid, ctx).await?;
                } else if info == pg_constants::XLOG_XACT_PREPARE {
+                    let xid: u64 = if pg_version >= 17 {
+                        self.adjust_to_full_transaction_id(decoded.xl_xid)?
+                    } else {
+                        decoded.xl_xid as u64
+                    };
                    modification
-                        .put_twophase_file(decoded.xl_xid, Bytes::copy_from_slice(&buf[..]), ctx)
+                        .put_twophase_file(xid, Bytes::copy_from_slice(&buf[..]), ctx)
                        .await?;
                }
            }
@@ -312,7 +345,11 @@ impl WalIngest {
                let info = decoded.xl_info & pg_constants::XLR_RMGR_INFO_MASK;

                if info == pg_constants::XLOG_MULTIXACT_ZERO_OFF_PAGE {
-                    let pageno = buf.get_u32_le();
+                    let pageno = if pg_version < 17 {
+                        buf.get_u32_le()
+                    } else {
+                        buf.get_u64_le() as u32
+                    };
                    let segno = pageno / pg_constants::SLRU_PAGES_PER_SEGMENT;
                    let rpageno = pageno % pg_constants::SLRU_PAGES_PER_SEGMENT;
                    self.put_slru_page_image(
@@ -325,7 +362,11 @@ impl WalIngest {
                    )
                    .await?;
                } else if info == pg_constants::XLOG_MULTIXACT_ZERO_MEM_PAGE {
-                    let pageno = buf.get_u32_le();
+                    let pageno = if pg_version < 17 {
+                        buf.get_u32_le()
+                    } else {
+                        buf.get_u64_le() as u32
+                    };
                    let segno = pageno / pg_constants::SLRU_PAGES_PER_SEGMENT;
                    let rpageno = pageno % pg_constants::SLRU_PAGES_PER_SEGMENT;
                    self.put_slru_page_image(
@@ -354,6 +395,20 @@ impl WalIngest {
            pg_constants::RM_XLOG_ID => {
                let info = decoded.xl_info & pg_constants::XLR_RMGR_INFO_MASK;

+                if info == pg_constants::XLOG_PARAMETER_CHANGE {
+                    if let CheckPoint::V17(cp) = &mut self.checkpoint {
+                        let rec = v17::XlParameterChange::decode(&mut buf);
+                        cp.wal_level = rec.wal_level;
+                        self.checkpoint_modified = true;
+                    }
+                } else if info == pg_constants::XLOG_END_OF_RECOVERY {
+                    if let CheckPoint::V17(cp) = &mut self.checkpoint {
+                        let rec = v17::XlEndOfRecovery::decode(&mut buf);
+                        cp.wal_level = rec.wal_level;
+                        self.checkpoint_modified = true;
+                    }
+                }
+
                enum_pgversion_dispatch!(&mut self.checkpoint, CheckPoint, cp, {
                    if info == pg_constants::XLOG_NEXTOID {
                        let next_oid = buf.get_u32_le();
@@ -397,12 +452,24 @@ impl WalIngest {
                        if xlog_checkpoint.oldestActiveXid == pg_constants::INVALID_TRANSACTION_ID
                            && info == pg_constants::XLOG_CHECKPOINT_SHUTDOWN
                        {
-                            let mut oldest_active_xid = cp.nextXid.value as u32;
-                            for xid in modification.tline.list_twophase_files(lsn, ctx).await? {
-                                if (xid.wrapping_sub(oldest_active_xid) as i32) < 0 {
-                                    oldest_active_xid = xid;
+                            let oldest_active_xid = if pg_version >= 17 {
+                                let mut oldest_active_full_xid = cp.nextXid.value;
+                                for xid in modification.tline.list_twophase_files(lsn, ctx).await? {
+                                    if xid < oldest_active_full_xid {
+                                        oldest_active_full_xid = xid;
+                                    }
                                }
-                            }
+                                oldest_active_full_xid as u32
+                            } else {
+                                let mut oldest_active_xid = cp.nextXid.value as u32;
+                                for xid in modification.tline.list_twophase_files(lsn, ctx).await? {
+                                    let narrow_xid = xid as u32;
+                                    if (narrow_xid.wrapping_sub(oldest_active_xid) as i32) < 0 {
+                                        oldest_active_xid = narrow_xid;
+                                    }
+                                }
+                                oldest_active_xid
+                            };
                            cp.oldestActiveXid = oldest_active_xid;
                        } else {
                            cp.oldestActiveXid = xlog_checkpoint.oldestActiveXid;
@@ -515,6 +582,25 @@ impl WalIngest {
        Ok(modification.len() > prev_len)
    }

+    /// This is the same as AdjustToFullTransactionId(xid) in PostgreSQL
+    fn adjust_to_full_transaction_id(&self, xid: TransactionId) -> Result<u64> {
+        let next_full_xid =
+            enum_pgversion_dispatch!(&self.checkpoint, CheckPoint, cp, { cp.nextXid.value });
+
+        let next_xid = (next_full_xid) as u32;
+        let mut epoch = (next_full_xid >> 32) as u32;
+
+        if xid > next_xid {
+            // Wraparound occurred, must be from a prev epoch.
+            if epoch == 0 {
+                bail!("apparent XID wraparound with prepared transaction XID {xid}, nextXid is {next_full_xid}");
+            }
+            epoch -= 1;
+        }
+
+        Ok((epoch as u64) << 32 | xid as u64)
+    }
+
    /// Do not store this block, but observe it for the purposes of updating our relation size state.
    async fn observe_decoded_block(
        &mut self,
@@ -815,6 +901,73 @@ impl WalIngest {
                    bail!("Unknown RMGR {} for Heap decoding", decoded.xl_rmid);
                }
            }
+            17 => {
+                if decoded.xl_rmid == pg_constants::RM_HEAP_ID {
+                    let info = decoded.xl_info & pg_constants::XLOG_HEAP_OPMASK;
+
+                    if info == pg_constants::XLOG_HEAP_INSERT {
+                        let xlrec = v17::XlHeapInsert::decode(buf);
+                        assert_eq!(0, buf.remaining());
+                        if (xlrec.flags & pg_constants::XLH_INSERT_ALL_VISIBLE_CLEARED) != 0 {
+                            new_heap_blkno = Some(decoded.blocks[0].blkno);
+                        }
+                    } else if info == pg_constants::XLOG_HEAP_DELETE {
+                        let xlrec = v17::XlHeapDelete::decode(buf);
+                        if (xlrec.flags & pg_constants::XLH_DELETE_ALL_VISIBLE_CLEARED) != 0 {
+                            new_heap_blkno = Some(decoded.blocks[0].blkno);
+                        }
+                    } else if info == pg_constants::XLOG_HEAP_UPDATE
+                        || info == pg_constants::XLOG_HEAP_HOT_UPDATE
+                    {
+                        let xlrec = v17::XlHeapUpdate::decode(buf);
+                        // the size of tuple data is inferred from the size of the record.
+                        // we can't validate the remaining number of bytes without parsing
+                        // the tuple data.
+                        if (xlrec.flags & pg_constants::XLH_UPDATE_OLD_ALL_VISIBLE_CLEARED) != 0 {
+                            old_heap_blkno = Some(decoded.blocks.last().unwrap().blkno);
+                        }
+                        if (xlrec.flags & pg_constants::XLH_UPDATE_NEW_ALL_VISIBLE_CLEARED) != 0 {
+                            // PostgreSQL only uses XLH_UPDATE_NEW_ALL_VISIBLE_CLEARED on a
+                            // non-HOT update where the new tuple goes to different page than
+                            // the old one. Otherwise, only XLH_UPDATE_OLD_ALL_VISIBLE_CLEARED is
+                            // set.
+                            new_heap_blkno = Some(decoded.blocks[0].blkno);
+                        }
+                    } else if info == pg_constants::XLOG_HEAP_LOCK {
+                        let xlrec = v17::XlHeapLock::decode(buf);
+                        if (xlrec.flags & pg_constants::XLH_LOCK_ALL_FROZEN_CLEARED) != 0 {
+                            old_heap_blkno = Some(decoded.blocks[0].blkno);
+                            flags = pg_constants::VISIBILITYMAP_ALL_FROZEN;
+                        }
+                    }
+                } else if decoded.xl_rmid == pg_constants::RM_HEAP2_ID {
+                    let info = decoded.xl_info & pg_constants::XLOG_HEAP_OPMASK;
+                    if info == pg_constants::XLOG_HEAP2_MULTI_INSERT {
+                        let xlrec = v17::XlHeapMultiInsert::decode(buf);
+
+                        let offset_array_len =
+                            if decoded.xl_info & pg_constants::XLOG_HEAP_INIT_PAGE > 0 {
+                                // the offsets array is omitted if XLOG_HEAP_INIT_PAGE is set
+                                0
+                            } else {
+                                size_of::<u16>() * xlrec.ntuples as usize
+                            };
+                        assert_eq!(offset_array_len, buf.remaining());
+
+                        if (xlrec.flags & pg_constants::XLH_INSERT_ALL_VISIBLE_CLEARED) != 0 {
+                            new_heap_blkno = Some(decoded.blocks[0].blkno);
+                        }
+                    } else if info == pg_constants::XLOG_HEAP2_LOCK_UPDATED {
+                        let xlrec = v17::XlHeapLockUpdated::decode(buf);
+                        if (xlrec.flags & pg_constants::XLH_LOCK_ALL_FROZEN_CLEARED) != 0 {
+                            old_heap_blkno = Some(decoded.blocks[0].blkno);
+                            flags = pg_constants::VISIBILITYMAP_ALL_FROZEN;
+                        }
+                    }
+                } else {
+                    bail!("Unknown RMGR {} for Heap decoding", decoded.xl_rmid);
+                }
+            }
            _ => {}
        }

@@ -923,26 +1076,26 @@ impl WalIngest {
        assert_eq!(decoded.xl_rmid, pg_constants::RM_NEON_ID);

        match pg_version {
-            16 => {
+            16 | 17 => {
                let info = decoded.xl_info & pg_constants::XLOG_HEAP_OPMASK;

                match info {
                    pg_constants::XLOG_NEON_HEAP_INSERT => {
-                        let xlrec = v16::rm_neon::XlNeonHeapInsert::decode(buf);
+                        let xlrec = v17::rm_neon::XlNeonHeapInsert::decode(buf);
                        assert_eq!(0, buf.remaining());
                        if (xlrec.flags & pg_constants::XLH_INSERT_ALL_VISIBLE_CLEARED) != 0 {
                            new_heap_blkno = Some(decoded.blocks[0].blkno);
                        }
                    }
                    pg_constants::XLOG_NEON_HEAP_DELETE => {
-                        let xlrec = v16::rm_neon::XlNeonHeapDelete::decode(buf);
+                        let xlrec = v17::rm_neon::XlNeonHeapDelete::decode(buf);
                        if (xlrec.flags & pg_constants::XLH_DELETE_ALL_VISIBLE_CLEARED) != 0 {
                            new_heap_blkno = Some(decoded.blocks[0].blkno);
                        }
                    }
                    pg_constants::XLOG_NEON_HEAP_UPDATE
                    | pg_constants::XLOG_NEON_HEAP_HOT_UPDATE => {
-                        let xlrec = v16::rm_neon::XlNeonHeapUpdate::decode(buf);
+                        let xlrec = v17::rm_neon::XlNeonHeapUpdate::decode(buf);
                        // the size of tuple data is inferred from the size of the record.
                        // we can't validate the remaining number of bytes without parsing
                        // the tuple data.
@@ -958,7 +1111,7 @@ impl WalIngest {
                        }
                    }
                    pg_constants::XLOG_NEON_HEAP_MULTI_INSERT => {
-                        let xlrec = v16::rm_neon::XlNeonHeapMultiInsert::decode(buf);
+                        let xlrec = v17::rm_neon::XlNeonHeapMultiInsert::decode(buf);

                        let offset_array_len =
                            if decoded.xl_info & pg_constants::XLOG_HEAP_INIT_PAGE > 0 {
@@ -974,7 +1127,7 @@ impl WalIngest {
                        }
                    }
                    pg_constants::XLOG_NEON_HEAP_LOCK => {
-                        let xlrec = v16::rm_neon::XlNeonHeapLock::decode(buf);
+                        let xlrec = v17::rm_neon::XlNeonHeapLock::decode(buf);
                        if (xlrec.flags & pg_constants::XLH_LOCK_ALL_FROZEN_CLEARED) != 0 {
                            old_heap_blkno = Some(decoded.blocks[0].blkno);
                            flags = pg_constants::VISIBILITYMAP_ALL_FROZEN;
@@ -1222,7 +1375,7 @@ impl WalIngest {
            if rec.blkno % pg_constants::SLOTS_PER_FSM_PAGE != 0 {
                // Tail of last remaining FSM page has to be zeroed.
                // We are not precise here and instead of digging in FSM bitmap format just clear the whole page.
-                modification.put_rel_page_image_zero(rel, fsm_physical_page_no);
+                modification.put_rel_page_image_zero(rel, fsm_physical_page_no)?;
                fsm_physical_page_no += 1;
            }
            let nblocks = get_relsize(modification, rel, ctx).await?;
@@ -1244,7 +1397,7 @@ impl WalIngest {
            if rec.blkno % pg_constants::VM_HEAPBLOCKS_PER_PAGE != 0 {
                // Tail of last remaining vm page has to be zeroed.
                // We are not precise here and instead of digging in VM bitmap format just clear the whole page.
-                modification.put_rel_page_image_zero(rel, vm_page_no);
+                modification.put_rel_page_image_zero(rel, vm_page_no)?;
                vm_page_no += 1;
            }
            let nblocks = get_relsize(modification, rel, ctx).await?;
@@ -1737,7 +1890,7 @@ impl WalIngest {
                    continue;
                }

-                modification.put_rel_page_image_zero(rel, gap_blknum);
+                modification.put_rel_page_image_zero(rel, gap_blknum)?;
            }
        }
        Ok(())
@@ -1803,7 +1956,7 @@ impl WalIngest {

            // fill the gap with zeros
            for gap_blknum in old_nblocks..blknum {
-                modification.put_slru_page_image_zero(kind, segno, gap_blknum);
+                modification.put_slru_page_image_zero(kind, segno, gap_blknum)?;
            }
        }
        Ok(())
--- a/pageserver/src/walrecord.rs
+++ b/pageserver/src/walrecord.rs
@@ -174,6 +174,7 @@ impl DecodedWALRecord {
                }
                15 => info == postgres_ffi::v15::bindings::XLOG_DBASE_CREATE_FILE_COPY,
                16 => info == postgres_ffi::v16::bindings::XLOG_DBASE_CREATE_FILE_COPY,
+                17 => info == postgres_ffi::v17::bindings::XLOG_DBASE_CREATE_FILE_COPY,
                _ => {
                    panic!("Unsupported postgres version {pg_version}")
                }
@@ -341,16 +342,47 @@ pub mod v14 {
            }
        }
    }
+
+    #[repr(C)]
+    #[derive(Debug)]
+    pub struct XlParameterChange {
+        pub max_connections: i32,
+        pub max_worker_processes: i32,
+        pub max_wal_senders: i32,
+        pub max_prepared_xacts: i32,
+        pub max_locks_per_xact: i32,
+        pub wal_level: i32,
+        pub wal_log_hints: bool,
+        pub track_commit_timestamp: bool,
+        pub _padding: [u8; 2],
+    }
+
+    impl XlParameterChange {
+        pub fn decode(buf: &mut Bytes) -> XlParameterChange {
+            XlParameterChange {
+                max_connections: buf.get_i32_le(),
+                max_worker_processes: buf.get_i32_le(),
+                max_wal_senders: buf.get_i32_le(),
+                max_prepared_xacts: buf.get_i32_le(),
+                max_locks_per_xact: buf.get_i32_le(),
+                wal_level: buf.get_i32_le(),
+                wal_log_hints: buf.get_u8() != 0,
+                track_commit_timestamp: buf.get_u8() != 0,
+                _padding: [buf.get_u8(), buf.get_u8()],
+            }
+        }
+    }
 }

 pub mod v15 {
    pub use super::v14::{
        XlHeapDelete, XlHeapInsert, XlHeapLock, XlHeapLockUpdated, XlHeapMultiInsert, XlHeapUpdate,
+        XlParameterChange,
    };
 }

 pub mod v16 {
-    pub use super::v14::{XlHeapInsert, XlHeapLockUpdated, XlHeapMultiInsert};
+    pub use super::v14::{XlHeapInsert, XlHeapLockUpdated, XlHeapMultiInsert, XlParameterChange};
    use bytes::{Buf, Bytes};
    use postgres_ffi::{OffsetNumber, TransactionId};

@@ -529,6 +561,37 @@ pub mod v16 {
    }
 }

+pub mod v17 {
+    pub use super::v14::XlHeapLockUpdated;
+    use bytes::{Buf, Bytes};
+    pub use postgres_ffi::{TimeLineID, TimestampTz};
+
+    pub use super::v16::rm_neon;
+    pub use super::v16::{
+        XlHeapDelete, XlHeapInsert, XlHeapLock, XlHeapMultiInsert, XlHeapUpdate, XlParameterChange,
+    };
+
+    #[repr(C)]
+    #[derive(Debug)]
+    pub struct XlEndOfRecovery {
+        pub end_time: TimestampTz,
+        pub this_time_line_id: TimeLineID,
+        pub prev_time_line_id: TimeLineID,
+        pub wal_level: i32,
+    }
+
+    impl XlEndOfRecovery {
+        pub fn decode(buf: &mut Bytes) -> XlEndOfRecovery {
+            XlEndOfRecovery {
+                end_time: buf.get_i64_le(),
+                this_time_line_id: buf.get_u32_le(),
+                prev_time_line_id: buf.get_u32_le(),
+                wal_level: buf.get_i32_le(),
+            }
+        }
+    }
+}
+
 #[repr(C)]
 #[derive(Debug)]
 pub struct XlSmgrCreate {
@@ -746,9 +809,13 @@ pub struct XlClogTruncate {
 }

 impl XlClogTruncate {
-    pub fn decode(buf: &mut Bytes) -> XlClogTruncate {
+    pub fn decode(buf: &mut Bytes, pg_version: u32) -> XlClogTruncate {
        XlClogTruncate {
-            pageno: buf.get_u32_le(),
+            pageno: if pg_version < 17 {
+                buf.get_u32_le()
+            } else {
+                buf.get_u64_le() as u32
+            },
            oldest_xid: buf.get_u32_le(),
            oldest_xid_db: buf.get_u32_le(),
        }
--- a/pageserver/src/walredo.rs
+++ b/pageserver/src/walredo.rs
@@ -35,6 +35,7 @@ use anyhow::Context;
 use bytes::{Bytes, BytesMut};
 use pageserver_api::models::{WalRedoManagerProcessStatus, WalRedoManagerStatus};
 use pageserver_api::shard::TenantShardId;
+use std::future::Future;
 use std::sync::Arc;
 use std::time::Duration;
 use std::time::Instant;
@@ -296,6 +297,97 @@ impl PostgresRedoManager {
        }
    }

+    async fn do_with_walredo_process<
+        F: FnOnce(Arc<Process>) -> Fut,
+        Fut: Future<Output = Result<O, Error>>,
+        O,
+    >(
+        &self,
+        pg_version: u32,
+        closure: F,
+    ) -> Result<O, Error> {
+        let proc: Arc<Process> = match self.redo_process.get_or_init_detached().await {
+            Ok(guard) => match &*guard {
+                ProcessOnceCell::Spawned(proc) => Arc::clone(proc),
+                ProcessOnceCell::ManagerShutDown => {
+                    return Err(Error::Cancelled);
+                }
+            },
+            Err(permit) => {
+                let start = Instant::now();
+                // acquire guard before spawning process, so that we don't spawn new processes
+                // if the gate is already closed.
+                let _launched_processes_guard = match self.launched_processes.enter() {
+                    Ok(guard) => guard,
+                    Err(GateError::GateClosed) => unreachable!(
+                        "shutdown sets the once cell to `ManagerShutDown` state before closing the gate"
+                    ),
+                };
+                let proc = Arc::new(Process {
+                    process: process::WalRedoProcess::launch(
+                        self.conf,
+                        self.tenant_shard_id,
+                        pg_version,
+                    )
+                    .context("launch walredo process")?,
+                    _launched_processes_guard,
+                });
+                let duration = start.elapsed();
+                WAL_REDO_PROCESS_LAUNCH_DURATION_HISTOGRAM.observe(duration.as_secs_f64());
+                info!(
+                    elapsed_ms = duration.as_millis(),
+                    pid = proc.id(),
+                    "launched walredo process"
+                );
+                self.redo_process
+                    .set(ProcessOnceCell::Spawned(Arc::clone(&proc)), permit);
+                proc
+            }
+        };
+
+        // async closures are unstable, would support &Process
+        let result = closure(proc.clone()).await;
+
+        if result.is_err() {
+            // Avoid concurrent callers hitting the same issue by taking `proc` out of the rotation.
+            // Note that there may be other tasks concurrent with us that also hold `proc`.
+            // We have to deal with that here.
+            // Also read the doc comment on field `self.redo_process`.
+            //
+            // NB: there may still be other concurrent threads using `proc`.
+            // The last one will send SIGKILL when the underlying Arc reaches refcount 0.
+            //
+            // NB: the drop impl blocks the dropping thread with a wait() system call for
+            // the child process. In some ways the blocking is actually good: if we
+            // deferred the waiting into the background / to tokio if we used `tokio::process`,
+            // it could happen that if walredo always fails immediately, we spawn processes faster
+            // than we can SIGKILL & `wait` for them to exit. By doing it the way we do here,
+            // we limit this risk of run-away to at most $num_runtimes * $num_executor_threads.
+            // This probably needs revisiting at some later point.
+            match self.redo_process.get() {
+                None => (),
+                Some(guard) => {
+                    match &*guard {
+                        ProcessOnceCell::ManagerShutDown => {}
+                        ProcessOnceCell::Spawned(guard_proc) => {
+                            if Arc::ptr_eq(&proc, guard_proc) {
+                                // We're the first to observe an error from `proc`, it's our job to take it out of rotation.
+                                guard.take_and_deinit();
+                            } else {
+                                // Another task already spawned another redo process (further up in this method)
+                                // and put it into `redo_process`. Do nothing, our view of the world is behind.
+                            }
+                        }
+                    }
+                }
+            }
+            // The last task that does this `drop()` of `proc` will do a blocking `wait()` syscall.
+            drop(proc);
+        }
+
+        result
+    }
+
    ///
    /// Process one request for WAL redo using wal-redo postgres
    ///
@@ -319,130 +411,63 @@ impl PostgresRedoManager {
        const MAX_RETRY_ATTEMPTS: u32 = 1;
        let mut n_attempts = 0u32;
        loop {
-            let proc: Arc<Process> = match self.redo_process.get_or_init_detached().await {
-                Ok(guard) => match &*guard {
-                    ProcessOnceCell::Spawned(proc) => Arc::clone(proc),
-                    ProcessOnceCell::ManagerShutDown => {
-                        return Err(Error::Cancelled);
-                    }
-                },
-                Err(permit) => {
-                    let start = Instant::now();
-                    // acquire guard before spawning process, so that we don't spawn new processes
-                    // if the gate is already closed.
-                    let _launched_processes_guard = match self.launched_processes.enter() {
-                                Ok(guard) => guard,
-                                Err(GateError::GateClosed) => unreachable!(
-                                    "shutdown sets the once cell to `ManagerShutDown` state before closing the gate"
-                                ),
-                            };
-                    let proc = Arc::new(Process {
-                        process: process::WalRedoProcess::launch(
-                            self.conf,
-                            self.tenant_shard_id,
-                            pg_version,
-                        )
-                        .context("launch walredo process")?,
-                        _launched_processes_guard,
-                    });
-                    let duration = start.elapsed();
-                    WAL_REDO_PROCESS_LAUNCH_DURATION_HISTOGRAM.observe(duration.as_secs_f64());
-                    info!(
-                        duration_ms = duration.as_millis(),
-                        pid = proc.id(),
-                        "launched walredo process"
-                    );
-                    self.redo_process
-                        .set(ProcessOnceCell::Spawned(Arc::clone(&proc)), permit);
-                    proc
-                }
-            };
+            let base_img = &base_img;
+            let closure = |proc: Arc<Process>| async move {
+                let started_at = std::time::Instant::now();

-            let started_at = std::time::Instant::now();
+                // Relational WAL records are applied using wal-redo-postgres
+                let result = proc
+                    .apply_wal_records(rel, blknum, base_img, records, wal_redo_timeout)
+                    .await
+                    .context("apply_wal_records");

-            // Relational WAL records are applied using wal-redo-postgres
-            let result = proc
-                .apply_wal_records(rel, blknum, &base_img, records, wal_redo_timeout)
-                .await
-                .context("apply_wal_records");
+                let duration = started_at.elapsed();

-            let duration = started_at.elapsed();
-
-            let len = records.len();
-            let nbytes = records.iter().fold(0, |acumulator, record| {
-                acumulator
-                    + match &record.1 {
-                        NeonWalRecord::Postgres { rec, .. } => rec.len(),
-                        _ => unreachable!("Only PostgreSQL records are accepted in this batch"),
-                    }
-            });
-
-            WAL_REDO_TIME.observe(duration.as_secs_f64());
-            WAL_REDO_RECORDS_HISTOGRAM.observe(len as f64);
-            WAL_REDO_BYTES_HISTOGRAM.observe(nbytes as f64);
-
-            debug!(
-                "postgres applied {} WAL records ({} bytes) in {} us to reconstruct page image at LSN {}",
-                len,
-                nbytes,
-                duration.as_micros(),
-                lsn
-            );
-
-            // If something went wrong, don't try to reuse the process. Kill it, and
-            // next request will launch a new one.
-            if let Err(e) = result.as_ref() {
-                error!(
-                    "error applying {} WAL records {}..{} ({} bytes) to key {key}, from base image with LSN {} to reconstruct page image at LSN {} n_attempts={}: {:?}",
-                    records.len(),
-                    records.first().map(|p| p.0).unwrap_or(Lsn(0)),
-                    records.last().map(|p| p.0).unwrap_or(Lsn(0)),
-                    nbytes,
-                    base_img_lsn,
-                    lsn,
-                    n_attempts,
-                    e,
-                );
-                // Avoid concurrent callers hitting the same issue by taking `proc` out of the rotation.
-                // Note that there may be other tasks concurrent with us that also hold `proc`.
-                // We have to deal with that here.
-                // Also read the doc comment on field `self.redo_process`.
-                //
-                // NB: there may still be other concurrent threads using `proc`.
-                // The last one will send SIGKILL when the underlying Arc reaches refcount 0.
-                //
-                // NB: the drop impl blocks the dropping thread with a wait() system call for
-                // the child process. In some ways the blocking is actually good: if we
-                // deferred the waiting into the background / to tokio if we used `tokio::process`,
-                // it could happen that if walredo always fails immediately, we spawn processes faster
-                // than we can SIGKILL & `wait` for them to exit. By doing it the way we do here,
-                // we limit this risk of run-away to at most $num_runtimes * $num_executor_threads.
-                // This probably needs revisiting at some later point.
-                match self.redo_process.get() {
-                    None => (),
-                    Some(guard) => {
-                        match &*guard {
-                            ProcessOnceCell::ManagerShutDown => {}
-                            ProcessOnceCell::Spawned(guard_proc) => {
-                                if Arc::ptr_eq(&proc, guard_proc) {
-                                    // We're the first to observe an error from `proc`, it's our job to take it out of rotation.
-                                    guard.take_and_deinit();
-                                } else {
-                                    // Another task already spawned another redo process (further up in this method)
-                                    // and put it into `redo_process`. Do nothing, our view of the world is behind.
-                                }
-                            }
+                let len = records.len();
+                let nbytes = records.iter().fold(0, |acumulator, record| {
+                    acumulator
+                        + match &record.1 {
+                            NeonWalRecord::Postgres { rec, .. } => rec.len(),
+                            _ => unreachable!("Only PostgreSQL records are accepted in this batch"),
                        }
-                    }
+                });
+
+                WAL_REDO_TIME.observe(duration.as_secs_f64());
+                WAL_REDO_RECORDS_HISTOGRAM.observe(len as f64);
+                WAL_REDO_BYTES_HISTOGRAM.observe(nbytes as f64);
+
+                debug!(
+                    "postgres applied {} WAL records ({} bytes) in {} us to reconstruct page image at LSN {}",
+                    len,
+                    nbytes,
+                    duration.as_micros(),
+                    lsn
+                );
+
+                if let Err(e) = result.as_ref() {
+                    error!(
+                        "error applying {} WAL records {}..{} ({} bytes) to key {key}, from base image with LSN {} to reconstruct page image at LSN {} n_attempts={}: {:?}",
+                        records.len(),
+                        records.first().map(|p| p.0).unwrap_or(Lsn(0)),
+                        records.last().map(|p| p.0).unwrap_or(Lsn(0)),
+                        nbytes,
+                        base_img_lsn,
+                        lsn,
+                        n_attempts,
+                        e,
+                    );
                }
-                // The last task that does this `drop()` of `proc` will do a blocking `wait()` syscall.
-                drop(proc);
-            } else if n_attempts != 0 {
+
+                result.map_err(Error::Other)
+            };
+            let result = self.do_with_walredo_process(pg_version, closure).await;
+
+            if result.is_ok() && n_attempts != 0 {
                info!(n_attempts, "retried walredo succeeded");
            }
            n_attempts += 1;
            if n_attempts > MAX_RETRY_ATTEMPTS || result.is_ok() {
-                return result.map_err(Error::Other);
+                return result;
            }
        }
    }
--- a/pgxn/neon/bitmap.h
+++ b/pgxn/neon/bitmap.h
@@ -0,0 +1,12 @@
+#ifndef NEON_BITMAP_H
+#define NEON_BITMAP_H
+
+/*
+ * Utilities for manipulating bits8* as bitmaps.
+ */
+
+#define BITMAP_ISSET(bm, bit) ((bm)[(bit) >> 3] & (1 << ((bit) & 7)))
+#define BITMAP_SET(bm, bit) (bm)[(bit) >> 3] |= (1 << ((bit) & 7))
+#define BITMAP_CLR(bm, bit) (bm)[(bit) >> 3] &= ~(1 << ((bit) & 7))
+
+#endif //NEON_BITMAP_H
--- a/pgxn/neon/file_cache.c
+++ b/pgxn/neon/file_cache.c
@@ -27,6 +27,7 @@
 #include "pagestore_client.h"
 #include "common/hashfn.h"
 #include "pgstat.h"
+#include "port/pg_iovec.h"
 #include "postmaster/bgworker.h"
 #include RELFILEINFO_HDR
 #include "storage/buf_internals.h"
@@ -40,6 +41,7 @@
 #include "utils/guc.h"

 #include "hll.h"
+#include "bitmap.h"

 #define CriticalAssert(cond) do if (!(cond)) elog(PANIC, "Assertion %s failed at %s:%d: ", #cond, __FILE__, __LINE__); while (0)

@@ -469,6 +471,99 @@ lfc_cache_contains(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno)
 	return found;
 }

+/*
+ * Check if page is present in the cache.
+ * Returns true if page is found in local cache.
+ */
+int
+lfc_cache_containsv(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno,
+					int nblocks, bits8 *bitmap)
+{
+	BufferTag	tag;
+	FileCacheEntry *entry;
+	uint32		chunk_offs;
+	int			found = 0;
+	uint32		hash;
+	int			i = 0;
+
+	if (lfc_maybe_disabled())	/* fast exit if file cache is disabled */
+		return 0;
+
+	CopyNRelFileInfoToBufTag(tag, rinfo);
+	tag.forkNum = forkNum;
+
+	CriticalAssert(BufTagGetRelNumber(&tag) != InvalidRelFileNumber);
+
+	tag.blockNum = (blkno + i) & ~(BLOCKS_PER_CHUNK - 1);
+	hash = get_hash_value(lfc_hash, &tag);
+	chunk_offs = (blkno + i) & (BLOCKS_PER_CHUNK - 1);
+
+	LWLockAcquire(lfc_lock, LW_SHARED);
+
+	while (true)
+	{
+		int		this_chunk = Min(nblocks, BLOCKS_PER_CHUNK - chunk_offs);
+		if (LFC_ENABLED())
+		{
+			entry = hash_search_with_hash_value(lfc_hash, &tag, hash, HASH_FIND, NULL);
+
+			if (entry != NULL)
+			{
+				for (; chunk_offs < BLOCKS_PER_CHUNK && i < nblocks; chunk_offs++, i++)
+				{
+					if ((entry->bitmap[chunk_offs >> 5] & 
+						(1 << (chunk_offs & 31))) != 0)
+					{
+						BITMAP_SET(bitmap, i);
+						found++;
+					}
+				}
+			}
+			else
+			{
+				i += this_chunk;
+			}
+		}
+		else
+		{
+			return found;
+		}
+
+		/*
+		 * Break out of the iteration before doing expensive stuff for
+		 * a next iteration
+		 */
+		if (i + 1 >= nblocks)
+			break;
+
+		/*
+		 * Prepare for the next iteration. We don't unlock here, as that'd
+		 * probably be more expensive than the gains it'd get us.
+		 */
+		tag.blockNum = (blkno + i) & ~(BLOCKS_PER_CHUNK - 1);
+		hash = get_hash_value(lfc_hash, &tag);
+		chunk_offs = (blkno + i) & (BLOCKS_PER_CHUNK - 1);
+	}
+
+	LWLockRelease(lfc_lock);
+
+#if USE_ASSERT_CHECKING
+	do {
+		int count = 0;
+
+		for (int j = 0; j < nblocks; j++)
+		{
+			if (BITMAP_ISSET(bitmap, j))
+				count++;
+		}
+
+		Assert(count == found);
+	} while (false);
+#endif
+
+	return found;
+}
+
 /*
 * Evict a page (if present) from the local file cache
 */
@@ -548,91 +643,171 @@ lfc_evict(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno)
 }

 /*
- * Try to read page from local cache.
- * Returns true if page is found in local cache.
- * In case of error local file cache is disabled (lfc->limit is set to zero).
+ * Try to read pages from local cache.
+ * Returns the number of pages read from the local cache, and sets bits in
+ * 'read' for the pages which were read. This may scribble over buffers not
+ * marked in 'read', so be careful with operation ordering.
+ *
+ * In case of error local file cache is disabled (lfc->limit is set to zero),
+ * and -1 is returned. Note that 'read' and the buffers may be touched and in
+ * an otherwise invalid state.
+ *
+ * If the mask argument is supplied, bits will be set at the offsets of pages
+ * that were present and read from the LFC.
 */
-bool
-lfc_read(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno,
-		 char *buffer)
+int
+lfc_readv_select(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno,
+				 void **buffers, BlockNumber nblocks, bits8 *mask)
 {
 	BufferTag	tag;
 	FileCacheEntry *entry;
 	ssize_t		rc;
-	int			chunk_offs = blkno & (BLOCKS_PER_CHUNK - 1);
 	bool		result = true;
 	uint32		hash;
 	uint64		generation;
 	uint32		entry_offset;
+	int			blocks_read = 0;
+	int			buf_offset = 0;

 	if (lfc_maybe_disabled())	/* fast exit if file cache is disabled */
-		return false;
+		return 0;

 	if (!lfc_ensure_opened())
-		return false;
+		return 0;

 	CopyNRelFileInfoToBufTag(tag, rinfo);
 	tag.forkNum = forkNum;
-	tag.blockNum = blkno & ~(BLOCKS_PER_CHUNK - 1);

 	CriticalAssert(BufTagGetRelNumber(&tag) != InvalidRelFileNumber);
-	hash = get_hash_value(lfc_hash, &tag);

-	LWLockAcquire(lfc_lock, LW_EXCLUSIVE);
-
-	if (!LFC_ENABLED())
+	/* 
+	 * For every chunk that has blocks we're interested in, we
+	 * 1. get the chunk header
+	 * 2. Check if the chunk actually has the blocks we're interested in
+	 * 3. Read the blocks we're looking for (in one preadv), assuming they exist
+	 * 4. Update the statistics for the read call.
+	 *
+	 * If there is an error, we do an early return.
+	 */
+	while (nblocks > 0)
 	{
+		struct iovec iov[PG_IOV_MAX];
+		int		chunk_offs = blkno & (BLOCKS_PER_CHUNK - 1);
+		int		blocks_in_chunk = Min(nblocks, BLOCKS_PER_CHUNK - (blkno % BLOCKS_PER_CHUNK));
+		int		iteration_hits = 0;
+		int		iteration_misses = 0;
+		Assert(blocks_in_chunk > 0);
+
+		for (int i = 0; i < blocks_in_chunk; i++)
+		{
+			iov[i].iov_base = buffers[buf_offset + i];
+			iov[i].iov_len = BLCKSZ;
+		}
+
+		tag.blockNum = blkno - chunk_offs;
+		hash = get_hash_value(lfc_hash, &tag);
+
+		LWLockAcquire(lfc_lock, LW_EXCLUSIVE);
+
+		/* We can return the blocks we've read before LFC got disabled;
+		 * assuming we read any. */
+		if (!LFC_ENABLED())
+		{
+			LWLockRelease(lfc_lock);
+			return blocks_read;
+		}
+
+		entry = hash_search_with_hash_value(lfc_hash, &tag, hash, HASH_FIND, NULL);
+
+		/* Approximate working set for the blocks assumed in this entry */
+		for (int i = 0; i < blocks_in_chunk; i++)
+		{
+			tag.blockNum = blkno + i;
+			addSHLL(&lfc_ctl->wss_estimation, hash_bytes((uint8_t const*)&tag, sizeof(tag)));
+		}
+
+		if (entry == NULL)
+		{
+			/* Pages are not cached */
+			lfc_ctl->misses += blocks_in_chunk;
+			pgBufferUsage.file_cache.misses += blocks_in_chunk;
+			LWLockRelease(lfc_lock);
+
+			buf_offset += blocks_in_chunk;
+			nblocks -= blocks_in_chunk;
+			blkno += blocks_in_chunk;
+
+			continue;
+		}
+
+		/* Unlink entry from LRU list to pin it for the duration of IO operation */
+		if (entry->access_count++ == 0)
+			dlist_delete(&entry->list_node);
+
+		generation = lfc_ctl->generation;
+		entry_offset = entry->offset;
+
 		LWLockRelease(lfc_lock);
-		return false;
-	}

-	entry = hash_search_with_hash_value(lfc_hash, &tag, hash, HASH_FIND, NULL);
+		for (int i = 0; i < blocks_in_chunk; i++)
+		{
+			/*
+			 * If the page is valid, we consider it "read".
+			 * All other pages will be fetched separately by the next cache
+			 */
+			if (entry->bitmap[(chunk_offs + i) / 32] & (1 << ((chunk_offs + i) % 32)))
+			{
+				BITMAP_SET(mask, buf_offset + i);
+				iteration_hits++;
+			}
+			else
+				iteration_misses++;
+		}

-	/* Approximate working set */
-	tag.blockNum = blkno;
-	addSHLL(&lfc_ctl->wss_estimation, hash_bytes((uint8_t const*)&tag, sizeof(tag)));
+		Assert(iteration_hits + iteration_misses > 0);
+
+		if (iteration_hits != 0)
+		{
+			rc = preadv(lfc_desc, iov, blocks_in_chunk,
+						((off_t) entry_offset * BLOCKS_PER_CHUNK + chunk_offs) * BLCKSZ);
+
+			if (rc != (BLCKSZ * blocks_in_chunk))
+			{
+				lfc_disable("read");
+				return -1;
+			}
+		}
+
+		/* Place entry to the head of LRU list */
+		LWLockAcquire(lfc_lock, LW_EXCLUSIVE);
+
+		if (lfc_ctl->generation == generation)
+		{
+			CriticalAssert(LFC_ENABLED());
+			lfc_ctl->hits += iteration_hits;
+			lfc_ctl->misses += iteration_misses;
+			pgBufferUsage.file_cache.hits += iteration_hits;
+			pgBufferUsage.file_cache.misses += iteration_misses;
+			CriticalAssert(entry->access_count > 0);
+			if (--entry->access_count == 0)
+				dlist_push_tail(&lfc_ctl->lru, &entry->list_node);
+		}
+		else
+		{
+			/* generation mismatch, assume error condition */
+			LWLockRelease(lfc_lock);
+			return -1;
+		}

-	if (entry == NULL || (entry->bitmap[chunk_offs >> 5] & (1 << (chunk_offs & 31))) == 0)
-	{
-		/* Page is not cached */
-		lfc_ctl->misses += 1;
-		pgBufferUsage.file_cache.misses += 1;
 		LWLockRelease(lfc_lock);
-		return false;
-	}
-	/* Unlink entry from LRU list to pin it for the duration of IO operation */
-	if (entry->access_count++ == 0)
-		dlist_delete(&entry->list_node);
-	generation = lfc_ctl->generation;
-	entry_offset = entry->offset;

-	LWLockRelease(lfc_lock);
-
-	rc = pread(lfc_desc, buffer, BLCKSZ, ((off_t) entry_offset * BLOCKS_PER_CHUNK + chunk_offs) * BLCKSZ);
-	if (rc != BLCKSZ)
-	{
-		lfc_disable("read");
-		return false;
+		buf_offset += blocks_in_chunk;
+		nblocks -= blocks_in_chunk;
+		blkno += blocks_in_chunk;
+		blocks_read += iteration_hits;
 	}

-	/* Place entry to the head of LRU list */
-	LWLockAcquire(lfc_lock, LW_EXCLUSIVE);
-
-	if (lfc_ctl->generation == generation)
-	{
-		CriticalAssert(LFC_ENABLED());
-		lfc_ctl->hits += 1;
-		pgBufferUsage.file_cache.hits += 1;
-		CriticalAssert(entry->access_count > 0);
-		if (--entry->access_count == 0)
-			dlist_push_tail(&lfc_ctl->lru, &entry->list_node);
-	}
-	else
-		result = false;
-
-	LWLockRelease(lfc_lock);
-
-	return result;
+	return blocks_read;
 }

 /*
@@ -640,20 +815,17 @@ lfc_read(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno,
 * If cache is full then evict some other page.
 */
 void
-#if PG_MAJORVERSION_NUM < 16
-lfc_write(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno, char *buffer)
-#else
-lfc_write(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno, const void *buffer)
-#endif
+lfc_writev(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno,
+		   const void *const *buffers, BlockNumber nblocks)
 {
 	BufferTag	tag;
 	FileCacheEntry *entry;
 	ssize_t		rc;
 	bool		found;
-	int			chunk_offs = blkno & (BLOCKS_PER_CHUNK - 1);
 	uint32		hash;
 	uint64		generation;
 	uint32		entry_offset;
+	int			buf_offset = 0;

 	if (lfc_maybe_disabled())	/* fast exit if file cache is disabled */
 		return;
@@ -661,110 +833,142 @@ lfc_write(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno, const void
 	if (!lfc_ensure_opened())
 		return;

-	tag.forkNum = forkNum;
-	tag.blockNum = blkno & ~(BLOCKS_PER_CHUNK - 1);
 	CopyNRelFileInfoToBufTag(tag, rinfo);
+	tag.forkNum = forkNum;

 	CriticalAssert(BufTagGetRelNumber(&tag) != InvalidRelFileNumber);
-	hash = get_hash_value(lfc_hash, &tag);

-	LWLockAcquire(lfc_lock, LW_EXCLUSIVE);
-
-	if (!LFC_ENABLED())
+	/* 
+	 * For every chunk that has blocks we're interested in, we
+	 * 1. get the chunk header
+	 * 2. Check if the chunk actually has the blocks we're interested in
+	 * 3. Read the blocks we're looking for (in one preadv), assuming they exist
+	 * 4. Update the statistics for the read call.
+	 *
+	 * If there is an error, we do an early return.
+	 */
+	while (nblocks > 0)
 	{
-		LWLockRelease(lfc_lock);
-		return;
-	}
+		struct iovec iov[PG_IOV_MAX];
+		int		chunk_offs = blkno & (BLOCKS_PER_CHUNK - 1);
+		int		blocks_in_chunk = Min(nblocks, BLOCKS_PER_CHUNK - (blkno % BLOCKS_PER_CHUNK));
+		Assert(blocks_in_chunk > 0);

-	entry = hash_search_with_hash_value(lfc_hash, &tag, hash, HASH_ENTER, &found);
-
-	if (found)
-	{
-		/*
-		 * Unlink entry from LRU list to pin it for the duration of IO
-		 * operation
-		 */
-		if (entry->access_count++ == 0)
-			dlist_delete(&entry->list_node);
-	}
-	else
-	{
-		/*
-		 * We have two choices if all cache pages are pinned (i.e. used in IO
-		 * operations):
-		 *
-		 * 1) Wait until some of this operation is completed and pages is
-		 * unpinned.
-		 *
-		 * 2) Allocate one more chunk, so that specified cache size is more
-		 * recommendation than hard limit.
-		 *
-		 * As far as probability of such event (that all pages are pinned) is
-		 * considered to be very very small: there are should be very large
-		 * number of concurrent IO operations and them are limited by
-		 * max_connections, we prefer not to complicate code and use second
-		 * approach.
-		 */
-		if (lfc_ctl->used >= lfc_ctl->limit && !dlist_is_empty(&lfc_ctl->lru))
+		for (int i = 0; i < blocks_in_chunk; i++)
 		{
-			/* Cache overflow: evict least recently used chunk */
-			FileCacheEntry *victim = dlist_container(FileCacheEntry, list_node, dlist_pop_head_node(&lfc_ctl->lru));
-
-			CriticalAssert(victim->access_count == 0);
-			entry->offset = victim->offset; /* grab victim's chunk */
-			hash_search_with_hash_value(lfc_hash, &victim->key, victim->hash, HASH_REMOVE, NULL);
-			neon_log(DEBUG2, "Swap file cache page");
+			iov[i].iov_base = unconstify(void *, buffers[buf_offset + i]);
+			iov[i].iov_len = BLCKSZ;
 		}
-		else if (!dlist_is_empty(&lfc_ctl->holes))
+
+		tag.blockNum = blkno & ~(BLOCKS_PER_CHUNK - 1);
+		hash = get_hash_value(lfc_hash, &tag);
+
+		LWLockAcquire(lfc_lock, LW_EXCLUSIVE);
+
+		if (!LFC_ENABLED())
 		{
-			/* We can reuse a hole that was left behind when the LFC was shrunk previously */
-			FileCacheEntry *hole = dlist_container(FileCacheEntry, list_node, dlist_pop_head_node(&lfc_ctl->holes));
-			uint32		offset = hole->offset;
-			bool		found;
+			LWLockRelease(lfc_lock);
+			return;
+		}

-			hash_search_with_hash_value(lfc_hash, &hole->key, hole->hash, HASH_REMOVE, &found);
-			CriticalAssert(found);
+		entry = hash_search_with_hash_value(lfc_hash, &tag, hash, HASH_ENTER, &found);

-			lfc_ctl->used += 1;
-			entry->offset = offset;	/* reuse the hole */
+		if (found)
+		{
+			/*
+			 * Unlink entry from LRU list to pin it for the duration of IO
+			 * operation
+			 */
+			if (entry->access_count++ == 0)
+				dlist_delete(&entry->list_node);
 		}
 		else
 		{
-			lfc_ctl->used += 1;
-			entry->offset = lfc_ctl->size++;	/* allocate new chunk at end
-												 * of file */
-		}
-		entry->access_count = 1;
-		entry->hash = hash;
-		memset(entry->bitmap, 0, sizeof entry->bitmap);
-	}
-
-	generation = lfc_ctl->generation;
-	entry_offset = entry->offset;
-	lfc_ctl->writes += 1;
-	LWLockRelease(lfc_lock);
-
-	rc = pwrite(lfc_desc, buffer, BLCKSZ, ((off_t) entry_offset * BLOCKS_PER_CHUNK + chunk_offs) * BLCKSZ);
-	if (rc != BLCKSZ)
-	{
-		lfc_disable("write");
-	}
-	else
-	{
-		LWLockAcquire(lfc_lock, LW_EXCLUSIVE);
-
-		if (lfc_ctl->generation == generation)
-		{
-			CriticalAssert(LFC_ENABLED());
-			/* Place entry to the head of LRU list */
-			CriticalAssert(entry->access_count > 0);
-			if (--entry->access_count == 0)
-				dlist_push_tail(&lfc_ctl->lru, &entry->list_node);
-
-			entry->bitmap[chunk_offs >> 5] |= (1 << (chunk_offs & 31));
+			/*
+			 * We have two choices if all cache pages are pinned (i.e. used in IO
+			 * operations):
+			 *
+			 * 1) Wait until some of this operation is completed and pages is
+			 * unpinned.
+			 *
+			 * 2) Allocate one more chunk, so that specified cache size is more
+			 * recommendation than hard limit.
+			 *
+			 * As far as probability of such event (that all pages are pinned) is
+			 * considered to be very very small: there are should be very large
+			 * number of concurrent IO operations and them are limited by
+			 * max_connections, we prefer not to complicate code and use second
+			 * approach.
+			 */
+			if (lfc_ctl->used >= lfc_ctl->limit && !dlist_is_empty(&lfc_ctl->lru))
+			{
+				/* Cache overflow: evict least recently used chunk */
+				FileCacheEntry *victim = dlist_container(FileCacheEntry, list_node, dlist_pop_head_node(&lfc_ctl->lru));
+	
+				CriticalAssert(victim->access_count == 0);
+				entry->offset = victim->offset; /* grab victim's chunk */
+				hash_search_with_hash_value(lfc_hash, &victim->key, victim->hash, HASH_REMOVE, NULL);
+				neon_log(DEBUG2, "Swap file cache page");
+			}
+			else if (!dlist_is_empty(&lfc_ctl->holes))
+			{
+				/* We can reuse a hole that was left behind when the LFC was shrunk previously */
+				FileCacheEntry *hole = dlist_container(FileCacheEntry, list_node, dlist_pop_head_node(&lfc_ctl->holes));
+				uint32		offset = hole->offset;
+				bool		found;
+	
+				hash_search_with_hash_value(lfc_hash, &hole->key, hole->hash, HASH_REMOVE, &found);
+				CriticalAssert(found);
+	
+				lfc_ctl->used += 1;
+				entry->offset = offset;	/* reuse the hole */
+			}
+			else
+			{
+				lfc_ctl->used += 1;
+				entry->offset = lfc_ctl->size++;	/* allocate new chunk at end
+													 * of file */
+			}
+			entry->access_count = 1;
+			entry->hash = hash;
+			memset(entry->bitmap, 0, sizeof entry->bitmap);
 		}

+		generation = lfc_ctl->generation;
+		entry_offset = entry->offset;
+		lfc_ctl->writes += blocks_in_chunk;
 		LWLockRelease(lfc_lock);
+
+		rc = pwritev(lfc_desc, iov, blocks_in_chunk,
+					 ((off_t) entry_offset * BLOCKS_PER_CHUNK + chunk_offs) * BLCKSZ);
+		if (rc != BLCKSZ * blocks_in_chunk)
+		{
+			lfc_disable("write");
+		}
+		else
+		{
+			LWLockAcquire(lfc_lock, LW_EXCLUSIVE);
+
+			if (lfc_ctl->generation == generation)
+			{
+				CriticalAssert(LFC_ENABLED());
+				/* Place entry to the head of LRU list */
+				CriticalAssert(entry->access_count > 0);
+				if (--entry->access_count == 0)
+					dlist_push_tail(&lfc_ctl->lru, &entry->list_node);
+
+				for (int i = 0; i < blocks_in_chunk; i++)
+				{
+					entry->bitmap[(chunk_offs + i) >> 5] |=
+						(1 << ((chunk_offs + i) & 31));
+				}
+			}
+
+			LWLockRelease(lfc_lock);
+		}
+		blkno += blocks_in_chunk;
+		buf_offset += blocks_in_chunk;
+		nblocks -= blocks_in_chunk;
 	}
 }

--- a/pgxn/neon/libpagestore.c
+++ b/pgxn/neon/libpagestore.c
@@ -537,7 +537,11 @@ pageserver_connect(shardno_t shard_no, int elevel)
 		/* No more polling needed; connection succeeded */
 		shard->last_connect_time = GetCurrentTimestamp();

+#if PG_MAJORVERSION_NUM >= 17
+		shard->wes_read = CreateWaitEventSet(NULL, 3);
+#else
 		shard->wes_read = CreateWaitEventSet(TopMemoryContext, 3);
+#endif
 		AddWaitEventToSet(shard->wes_read, WL_LATCH_SET, PGINVALID_SOCKET,
 						  MyLatch, NULL);
 		AddWaitEventToSet(shard->wes_read, WL_EXIT_ON_PM_DEATH, PGINVALID_SOCKET,
--- a/pgxn/neon/neon_pgversioncompat.h
+++ b/pgxn/neon/neon_pgversioncompat.h
@@ -6,7 +6,11 @@
 #ifndef NEON_PGVERSIONCOMPAT_H
 #define NEON_PGVERSIONCOMPAT_H

+#if PG_MAJORVERSION_NUM < 17
 #define NRelFileInfoBackendIsTemp(rinfo) (rinfo.backend != InvalidBackendId)
+#else
+#define NRelFileInfoBackendIsTemp(rinfo) (rinfo.backend != INVALID_PROC_NUMBER)
+#endif

 #define RelFileInfoEquals(a, b) ( \
 	NInfoGetSpcOid(a) == NInfoGetSpcOid(b) && \
@@ -50,7 +54,7 @@
 #define CopyNRelFileInfoToBufTag(tag, rinfo) \
 	do { \
 		(tag).rnode = (rinfo); \
-	} while (false);
+	} while (false)

 #define BufTagGetNRelFileInfo(tag) tag.rnode

@@ -98,7 +102,7 @@
 		(tag).spcOid = (rinfo).spcOid; \
 		(tag).dbOid = (rinfo).dbOid; \
 		(tag).relNumber = (rinfo).relNumber; \
-	} while (false);
+	} while (false)

 #define BufTagGetNRelFileInfo(tag) \
 	((RelFileLocator) { \
@@ -113,4 +117,10 @@
 #define DropRelationAllLocalBuffers DropRelationAllLocalBuffers
 #endif

+#if PG_MAJORVERSION_NUM < 17
+#define ProcNumber BackendId
+#define INVALID_PROC_NUMBER InvalidBackendId
+#define AmAutoVacuumWorkerProcess() (IsAutoVacuumWorkerProcess())
+#endif
+
 #endif							/* NEON_PGVERSIONCOMPAT_H */
--- a/pgxn/neon/pagestore_client.h
+++ b/pgxn/neon/pagestore_client.h
@@ -6,8 +6,6 @@
 * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
- * contrib/neon/pagestore_client.h
- *
 *-------------------------------------------------------------------------
 */
 #ifndef pageserver_h
@@ -187,7 +185,7 @@ extern char *nm_to_string(NeonMessage *msg);
 * API
 */

-typedef unsigned shardno_t;
+typedef uint16 shardno_t;

 typedef struct
 {
@@ -211,7 +209,7 @@ extern int  neon_protocol_version;

 extern shardno_t get_shard_number(BufferTag* tag);

-extern const f_smgr *smgr_neon(BackendId backend, NRelFileInfo rinfo);
+extern const f_smgr *smgr_neon(ProcNumber backend, NRelFileInfo rinfo);
 extern void smgr_init_neon(void);
 extern void readahead_buffer_resize(int newsize, void *extra);

@@ -233,8 +231,13 @@ extern void neon_zeroextend(SMgrRelation reln, ForkNumber forknum,
 							BlockNumber blocknum, int nbuffers, bool skipFsync);
 #endif

+#if PG_MAJORVERSION_NUM >=17
+extern bool neon_prefetch(SMgrRelation reln, ForkNumber forknum,
+						  BlockNumber blocknum, int nblocks);
+#else
 extern bool neon_prefetch(SMgrRelation reln, ForkNumber forknum,
 						  BlockNumber blocknum);
+#endif

 /*
 * LSN values associated with each request to the pageserver
@@ -269,19 +272,11 @@ typedef struct
 } neon_request_lsns;

 #if PG_MAJORVERSION_NUM < 16
-extern void neon_read(SMgrRelation reln, ForkNumber forknum, BlockNumber blocknum,
-					  char *buffer);
 extern PGDLLEXPORT void neon_read_at_lsn(NRelFileInfo rnode, ForkNumber forkNum, BlockNumber blkno,
 										 neon_request_lsns request_lsns, char *buffer);
-extern void neon_write(SMgrRelation reln, ForkNumber forknum,
-					   BlockNumber blocknum, char *buffer, bool skipFsync);
 #else
-extern void neon_read(SMgrRelation reln, ForkNumber forknum, BlockNumber blocknum,
-					  void *buffer);
 extern PGDLLEXPORT void neon_read_at_lsn(NRelFileInfo rnode, ForkNumber forkNum, BlockNumber blkno,
 										 neon_request_lsns request_lsns, void *buffer);
-extern void neon_write(SMgrRelation reln, ForkNumber forknum,
-					   BlockNumber blocknum, const void *buffer, bool skipFsync);
 #endif
 extern void neon_writeback(SMgrRelation reln, ForkNumber forknum,
 						   BlockNumber blocknum, BlockNumber nblocks);
@@ -299,17 +294,34 @@ extern void update_cached_relsize(NRelFileInfo rinfo, ForkNumber forknum, BlockN
 extern void forget_cached_relsize(NRelFileInfo rinfo, ForkNumber forknum);

 /* functions for local file cache */
-#if PG_MAJORVERSION_NUM < 16
-extern void lfc_write(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno,
-					  char *buffer);
-#else
-extern void lfc_write(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno,
-					  const void *buffer);
-#endif
-extern bool lfc_read(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno, char *buffer);
-extern bool lfc_cache_contains(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno);
+extern void lfc_writev(NRelFileInfo rinfo, ForkNumber forkNum,
+					   BlockNumber blkno, const void *const *buffers,
+					   BlockNumber nblocks);
+/* returns number of blocks read, with one bit set in *read for each  */
+extern int lfc_readv_select(NRelFileInfo rinfo, ForkNumber forkNum,
+							BlockNumber blkno, void **buffers,
+							BlockNumber nblocks, bits8 *mask);
+
+extern bool lfc_cache_contains(NRelFileInfo rinfo, ForkNumber forkNum,
+							   BlockNumber blkno);
+extern int lfc_cache_containsv(NRelFileInfo rinfo, ForkNumber forkNum,
+							   BlockNumber blkno, int nblocks, bits8 *bitmap);
 extern void lfc_evict(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno);
 extern void lfc_init(void);

+static inline bool
+lfc_read(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno,
+		 void *buffer)
+{
+	bits8		rv = 0;
+	return lfc_readv_select(rinfo, forkNum, blkno, &buffer, 1, &rv) == 1;
+}
+
+static inline void
+lfc_write(NRelFileInfo rinfo, ForkNumber forkNum, BlockNumber blkno,
+		  const void *buffer)
+{
+	return lfc_writev(rinfo, forkNum, blkno, &buffer, 1);
+}

 #endif
--- a/pgxn/neon/pagestore_smgr.c
+++ b/pgxn/neon/pagestore_smgr.c
--- a/pgxn/neon/walproposer_pg.c
+++ b/pgxn/neon/walproposer_pg.c
@@ -81,6 +81,7 @@ static void nwp_register_gucs(void);
 static void assign_neon_safekeepers(const char *newval, void *extra);
 static void nwp_prepare_shmem(void);
 static uint64 backpressure_lag_impl(void);
+static uint64 startup_backpressure_wrap(void);
 static bool backpressure_throttling_impl(void);
 static void walprop_register_bgworker(void);

@@ -90,7 +91,7 @@ static void walprop_pg_init_bgworker(void);
 static TimestampTz walprop_pg_get_current_timestamp(WalProposer *wp);
 static void walprop_pg_load_libpqwalreceiver(void);

-static process_interrupts_callback_t PrevProcessInterruptsCallback;
+static process_interrupts_callback_t PrevProcessInterruptsCallback = NULL;
 static shmem_startup_hook_type prev_shmem_startup_hook_type;
 #if PG_VERSION_NUM >= 150000
 static shmem_request_hook_type prev_shmem_request_hook = NULL;
@@ -178,7 +179,7 @@ pg_init_walproposer(void)

 	nwp_prepare_shmem();

-	delay_backend_us = &backpressure_lag_impl;
+	delay_backend_us = &startup_backpressure_wrap;
 	PrevProcessInterruptsCallback = ProcessInterruptsCallback;
 	ProcessInterruptsCallback = backpressure_throttling_impl;

@@ -352,6 +353,22 @@ backpressure_lag_impl(void)
 	return 0;
 }

+/*
+ * We don't apply backpressure when we're the postmaster, or the startup
+ * process, because in postmaster we can't apply backpressure, and in
+ * the startup process we can't afford to slow down.
+ */
+static uint64
+startup_backpressure_wrap(void)
+{
+	if (AmStartupProcess() || !IsUnderPostmaster)
+		return 0;
+
+	delay_backend_us = &backpressure_lag_impl;
+
+	return backpressure_lag_impl();
+}
+
 /*
 * WalproposerShmemSize --- report amount of shared memory space needed
 */
@@ -401,12 +418,13 @@ WalproposerShmemInit_SyncSafekeeper(void)
 static bool
 backpressure_throttling_impl(void)
 {
-	int64		lag;
+	uint64		lag;
 	TimestampTz start,
 				stop;
-	bool		retry = PrevProcessInterruptsCallback
-		? PrevProcessInterruptsCallback()
-		: false;
+	bool		retry = false;
+
+	if (PointerIsValid(PrevProcessInterruptsCallback))
+		retry = PrevProcessInterruptsCallback();

 	/*
 	 * Don't throttle read only transactions or wal sender. Do throttle CREATE
@@ -602,7 +620,12 @@ walprop_pg_init_walsender(void)
 	/* Create replication slot for WAL proposer if not exists */
 	if (SearchNamedReplicationSlot(WAL_PROPOSER_SLOT_NAME, false) == NULL)
 	{
+#if PG_MAJORVERSION_NUM >= 17
+		ReplicationSlotCreate(WAL_PROPOSER_SLOT_NAME, false, RS_PERSISTENT,
+							  false, false, false);
+#else
 		ReplicationSlotCreate(WAL_PROPOSER_SLOT_NAME, false, RS_PERSISTENT, false);
+#endif
 		ReplicationSlotReserveWal();
 		/* Write this slot to disk */
 		ReplicationSlotMarkDirty();
@@ -1509,7 +1532,11 @@ walprop_pg_init_event_set(WalProposer *wp)
 		wpg_log(FATAL, "double-initialization of event set");

 	/* for each sk, we have socket plus potentially socket for neon walreader */
+#if PG_MAJORVERSION_NUM >= 17
+	waitEvents = CreateWaitEventSet(NULL, 2 + 2 * wp->n_safekeepers);
+#else
 	waitEvents = CreateWaitEventSet(TopMemoryContext, 2 + 2 * wp->n_safekeepers);
+#endif
 	AddWaitEventToSet(waitEvents, WL_LATCH_SET, PGINVALID_SOCKET,
 					  MyLatch, NULL);
 	AddWaitEventToSet(waitEvents, WL_EXIT_ON_PM_DEATH, PGINVALID_SOCKET,
--- a/pgxn/neon_rmgr/neon_rmgr_decode.c
+++ b/pgxn/neon_rmgr/neon_rmgr_decode.c
@@ -1,6 +1,7 @@
 #include "postgres.h"

 #if PG_MAJORVERSION_NUM >= 16
+
 #include "access/heapam_xlog.h"
 #include "access/neon_xlog.h"
 #include "replication/decode.h"
@@ -9,6 +10,10 @@

 #include "neon_rmgr.h"

+#endif /* PG >= 16 */
+
+#if PG_MAJORVERSION_NUM == 16
+
 /* individual record(group)'s handlers */
 static void DecodeNeonInsert(LogicalDecodingContext *ctx, XLogRecordBuffer *buf);
 static void DecodeNeonUpdate(LogicalDecodingContext *ctx, XLogRecordBuffer *buf);
@@ -399,6 +404,398 @@ DecodeXLogTuple(char *data, Size len, ReorderBufferTupleBuf *tuple)
 	header->t_infomask2 = xlhdr.t_infomask2;
 	header->t_hoff = xlhdr.t_hoff;
 }
+#endif
+
+#if PG_MAJORVERSION_NUM == 17
+
+/* individual record(group)'s handlers */
+static void DecodeNeonInsert(LogicalDecodingContext *ctx, XLogRecordBuffer *buf);
+static void DecodeNeonUpdate(LogicalDecodingContext *ctx, XLogRecordBuffer *buf);
+static void DecodeNeonDelete(LogicalDecodingContext *ctx, XLogRecordBuffer *buf);
+static void DecodeNeonMultiInsert(LogicalDecodingContext *ctx, XLogRecordBuffer *buf);
+
+/* common function to decode tuples */
+static void DecodeXLogTuple(char *data, Size len, HeapTuple tuple);


-#endif
+void
+neon_rm_decode(LogicalDecodingContext *ctx, XLogRecordBuffer *buf)
+{
+	uint8		info = XLogRecGetInfo(buf->record) & XLOG_NEON_OPMASK;
+	TransactionId xid = XLogRecGetXid(buf->record);
+	SnapBuild  *builder = ctx->snapshot_builder;
+
+	ReorderBufferProcessXid(ctx->reorder, xid, buf->origptr);
+
+	/*
+	 * If we don't have snapshot or we are just fast-forwarding, there is no
+	 * point in decoding data changes.
+	 */
+	if (SnapBuildCurrentState(builder) < SNAPBUILD_FULL_SNAPSHOT ||
+		ctx->fast_forward)
+		return;
+
+	switch (info)
+	{
+		case XLOG_NEON_HEAP_INSERT:
+			if (SnapBuildProcessChange(builder, xid, buf->origptr))
+				DecodeNeonInsert(ctx, buf);
+			break;
+		case XLOG_NEON_HEAP_DELETE:
+			if (SnapBuildProcessChange(builder, xid, buf->origptr))
+				DecodeNeonDelete(ctx, buf);
+			break;
+		case XLOG_NEON_HEAP_UPDATE:
+		case XLOG_NEON_HEAP_HOT_UPDATE:
+			if (SnapBuildProcessChange(builder, xid, buf->origptr))
+				DecodeNeonUpdate(ctx, buf);
+			break;
+		case XLOG_NEON_HEAP_LOCK:
+			break;
+		case XLOG_NEON_HEAP_MULTI_INSERT:
+			if (SnapBuildProcessChange(builder, xid, buf->origptr))
+				DecodeNeonMultiInsert(ctx, buf);
+			break;
+		default:
+			elog(ERROR, "unexpected RM_HEAP_ID record type: %u", info);
+			break;
+	}
+}
+
+static inline bool
+FilterByOrigin(LogicalDecodingContext *ctx, RepOriginId origin_id)
+{
+	if (ctx->callbacks.filter_by_origin_cb == NULL)
+		return false;
+
+	return filter_by_origin_cb_wrapper(ctx, origin_id);
+}
+
+/*
+ * Parse XLOG_HEAP_INSERT (not MULTI_INSERT!) records into tuplebufs.
+ *
+ * Deletes can contain the new tuple.
+ */
+static void
+DecodeNeonInsert(LogicalDecodingContext *ctx, XLogRecordBuffer *buf)
+{
+	Size		datalen;
+	char	   *tupledata;
+	Size		tuplelen;
+	XLogReaderState *r = buf->record;
+	xl_neon_heap_insert *xlrec;
+	ReorderBufferChange *change;
+	RelFileLocator target_locator;
+
+	xlrec = (xl_neon_heap_insert *) XLogRecGetData(r);
+
+	/*
+	 * Ignore insert records without new tuples (this does happen when
+	 * raw_heap_insert marks the TOAST record as HEAP_INSERT_NO_LOGICAL).
+	 */
+	if (!(xlrec->flags & XLH_INSERT_CONTAINS_NEW_TUPLE))
+		return;
+
+	/* only interested in our database */
+	XLogRecGetBlockTag(r, 0, &target_locator, NULL, NULL);
+	if (target_locator.dbOid != ctx->slot->data.database)
+		return;
+
+	/* output plugin doesn't look for this origin, no need to queue */
+	if (FilterByOrigin(ctx, XLogRecGetOrigin(r)))
+		return;
+
+	change = ReorderBufferGetChange(ctx->reorder);
+	if (!(xlrec->flags & XLH_INSERT_IS_SPECULATIVE))
+		change->action = REORDER_BUFFER_CHANGE_INSERT;
+	else
+		change->action = REORDER_BUFFER_CHANGE_INTERNAL_SPEC_INSERT;
+	change->origin_id = XLogRecGetOrigin(r);
+
+	memcpy(&change->data.tp.rlocator, &target_locator, sizeof(RelFileLocator));
+
+	tupledata = XLogRecGetBlockData(r, 0, &datalen);
+	tuplelen = datalen - SizeOfHeapHeader;
+
+	change->data.tp.newtuple =
+		ReorderBufferGetTupleBuf(ctx->reorder, tuplelen);
+
+	DecodeXLogTuple(tupledata, datalen, change->data.tp.newtuple);
+
+	change->data.tp.clear_toast_afterwards = true;
+
+	ReorderBufferQueueChange(ctx->reorder, XLogRecGetXid(r), buf->origptr,
+							 change,
+							 xlrec->flags & XLH_INSERT_ON_TOAST_RELATION);
+}
+
+/*
+ * Parse XLOG_HEAP_DELETE from wal into proper tuplebufs.
+ *
+ * Deletes can possibly contain the old primary key.
+ */
+static void
+DecodeNeonDelete(LogicalDecodingContext *ctx, XLogRecordBuffer *buf)
+{
+	XLogReaderState *r = buf->record;
+	xl_neon_heap_delete *xlrec;
+	ReorderBufferChange *change;
+	RelFileLocator target_locator;
+
+	xlrec = (xl_neon_heap_delete *) XLogRecGetData(r);
+
+	/* only interested in our database */
+	XLogRecGetBlockTag(r, 0, &target_locator, NULL, NULL);
+	if (target_locator.dbOid != ctx->slot->data.database)
+		return;
+
+	/* output plugin doesn't look for this origin, no need to queue */
+	if (FilterByOrigin(ctx, XLogRecGetOrigin(r)))
+		return;
+
+	change = ReorderBufferGetChange(ctx->reorder);
+
+	if (xlrec->flags & XLH_DELETE_IS_SUPER)
+		change->action = REORDER_BUFFER_CHANGE_INTERNAL_SPEC_ABORT;
+	else
+		change->action = REORDER_BUFFER_CHANGE_DELETE;
+
+	change->origin_id = XLogRecGetOrigin(r);
+
+	memcpy(&change->data.tp.rlocator, &target_locator, sizeof(RelFileLocator));
+
+	/* old primary key stored */
+	if (xlrec->flags & XLH_DELETE_CONTAINS_OLD)
+	{
+		Size		datalen = XLogRecGetDataLen(r) - SizeOfNeonHeapHeader;
+		Size		tuplelen = datalen - SizeOfNeonHeapHeader;
+
+		Assert(XLogRecGetDataLen(r) > (SizeOfNeonHeapDelete + SizeOfNeonHeapHeader));
+
+		change->data.tp.oldtuple =
+			ReorderBufferGetTupleBuf(ctx->reorder, tuplelen);
+
+		DecodeXLogTuple((char *) xlrec + SizeOfNeonHeapDelete,
+						datalen, change->data.tp.oldtuple);
+	}
+
+	change->data.tp.clear_toast_afterwards = true;
+
+	ReorderBufferQueueChange(ctx->reorder, XLogRecGetXid(r), buf->origptr,
+							 change, false);
+}
+
+/*
+ * Parse XLOG_HEAP_UPDATE and XLOG_HEAP_HOT_UPDATE, which have the same layout
+ * in the record, from wal into proper tuplebufs.
+ *
+ * Updates can possibly contain a new tuple and the old primary key.
+ */
+static void
+DecodeNeonUpdate(LogicalDecodingContext *ctx, XLogRecordBuffer *buf)
+{
+	XLogReaderState *r = buf->record;
+	xl_neon_heap_update *xlrec;
+	ReorderBufferChange *change;
+	char	   *data;
+	RelFileLocator target_locator;
+
+	xlrec = (xl_neon_heap_update *) XLogRecGetData(r);
+
+	/* only interested in our database */
+	XLogRecGetBlockTag(r, 0, &target_locator, NULL, NULL);
+	if (target_locator.dbOid != ctx->slot->data.database)
+		return;
+
+	/* output plugin doesn't look for this origin, no need to queue */
+	if (FilterByOrigin(ctx, XLogRecGetOrigin(r)))
+		return;
+
+	change = ReorderBufferGetChange(ctx->reorder);
+	change->action = REORDER_BUFFER_CHANGE_UPDATE;
+	change->origin_id = XLogRecGetOrigin(r);
+	memcpy(&change->data.tp.rlocator, &target_locator, sizeof(RelFileLocator));
+
+	if (xlrec->flags & XLH_UPDATE_CONTAINS_NEW_TUPLE)
+	{
+		Size		datalen;
+		Size		tuplelen;
+
+		data = XLogRecGetBlockData(r, 0, &datalen);
+
+		tuplelen = datalen - SizeOfNeonHeapHeader;
+
+		change->data.tp.newtuple =
+			ReorderBufferGetTupleBuf(ctx->reorder, tuplelen);
+
+		DecodeXLogTuple(data, datalen, change->data.tp.newtuple);
+	}
+
+	if (xlrec->flags & XLH_UPDATE_CONTAINS_OLD)
+	{
+		Size		datalen;
+		Size		tuplelen;
+
+		/* caution, remaining data in record is not aligned */
+		data = XLogRecGetData(r) + SizeOfNeonHeapUpdate;
+		datalen = XLogRecGetDataLen(r) - SizeOfNeonHeapUpdate;
+		tuplelen = datalen - SizeOfNeonHeapHeader;
+
+		change->data.tp.oldtuple =
+			ReorderBufferGetTupleBuf(ctx->reorder, tuplelen);
+
+		DecodeXLogTuple(data, datalen, change->data.tp.oldtuple);
+	}
+
+	change->data.tp.clear_toast_afterwards = true;
+
+	ReorderBufferQueueChange(ctx->reorder, XLogRecGetXid(r), buf->origptr,
+							 change, false);
+}
+
+/*
+ * Decode XLOG_HEAP2_MULTI_INSERT_insert record into multiple tuplebufs.
+ *
+ * Currently MULTI_INSERT will always contain the full tuples.
+ */
+static void
+DecodeNeonMultiInsert(LogicalDecodingContext *ctx, XLogRecordBuffer *buf)
+{
+	XLogReaderState *r = buf->record;
+	xl_neon_heap_multi_insert *xlrec;
+	int			i;
+	char	   *data;
+	char	   *tupledata;
+	Size		tuplelen;
+	RelFileLocator rlocator;
+
+	xlrec = (xl_neon_heap_multi_insert *) XLogRecGetData(r);
+
+	/*
+	 * Ignore insert records without new tuples.  This happens when a
+	 * multi_insert is done on a catalog or on a non-persistent relation.
+	 */
+	if (!(xlrec->flags & XLH_INSERT_CONTAINS_NEW_TUPLE))
+		return;
+
+	/* only interested in our database */
+	XLogRecGetBlockTag(r, 0, &rlocator, NULL, NULL);
+	if (rlocator.dbOid != ctx->slot->data.database)
+		return;
+
+	/* output plugin doesn't look for this origin, no need to queue */
+	if (FilterByOrigin(ctx, XLogRecGetOrigin(r)))
+		return;
+
+	/*
+	 * We know that this multi_insert isn't for a catalog, so the block should
+	 * always have data even if a full-page write of it is taken.
+	 */
+	tupledata = XLogRecGetBlockData(r, 0, &tuplelen);
+	Assert(tupledata != NULL);
+
+	data = tupledata;
+	for (i = 0; i < xlrec->ntuples; i++)
+	{
+		ReorderBufferChange *change;
+		xl_neon_multi_insert_tuple *xlhdr;
+		int			datalen;
+		HeapTuple	tuple;
+		HeapTupleHeader header;
+
+		change = ReorderBufferGetChange(ctx->reorder);
+		change->action = REORDER_BUFFER_CHANGE_INSERT;
+		change->origin_id = XLogRecGetOrigin(r);
+
+		memcpy(&change->data.tp.rlocator, &rlocator, sizeof(RelFileLocator));
+
+		xlhdr = (xl_neon_multi_insert_tuple *) SHORTALIGN(data);
+		data = ((char *) xlhdr) + SizeOfNeonMultiInsertTuple;
+		datalen = xlhdr->datalen;
+
+		change->data.tp.newtuple =
+			ReorderBufferGetTupleBuf(ctx->reorder, datalen);
+
+		tuple = change->data.tp.newtuple;
+		header = tuple->t_data;
+
+		/* not a disk based tuple */
+		ItemPointerSetInvalid(&tuple->t_self);
+
+		/*
+		 * We can only figure this out after reassembling the transactions.
+		 */
+		tuple->t_tableOid = InvalidOid;
+
+		tuple->t_len = datalen + SizeofHeapTupleHeader;
+
+		memset(header, 0, SizeofHeapTupleHeader);
+
+		memcpy((char *) tuple->t_data + SizeofHeapTupleHeader,
+			   (char *) data,
+			   datalen);
+		header->t_infomask = xlhdr->t_infomask;
+		header->t_infomask2 = xlhdr->t_infomask2;
+		header->t_hoff = xlhdr->t_hoff;
+
+		/*
+		 * Reset toast reassembly state only after the last row in the last
+		 * xl_multi_insert_tuple record emitted by one heap_multi_insert()
+		 * call.
+		 */
+		if (xlrec->flags & XLH_INSERT_LAST_IN_MULTI &&
+			(i + 1) == xlrec->ntuples)
+			change->data.tp.clear_toast_afterwards = true;
+		else
+			change->data.tp.clear_toast_afterwards = false;
+
+		ReorderBufferQueueChange(ctx->reorder, XLogRecGetXid(r),
+								 buf->origptr, change, false);
+
+		/* move to the next xl_neon_multi_insert_tuple entry */
+		data += datalen;
+	}
+	Assert(data == tupledata + tuplelen);
+}
+
+/*
+ * Read a HeapTuple as WAL logged by heap_insert, heap_update and heap_delete
+ * (but not by heap_multi_insert) into a tuplebuf.
+ *
+ * The size 'len' and the pointer 'data' in the record need to be
+ * computed outside as they are record specific.
+ */
+static void
+DecodeXLogTuple(char *data, Size len, HeapTuple tuple)
+{
+	xl_neon_heap_header xlhdr;
+	int			datalen = len - SizeOfNeonHeapHeader;
+	HeapTupleHeader header;
+
+	Assert(datalen >= 0);
+
+	tuple->t_len = datalen + SizeofHeapTupleHeader;
+	header = tuple->t_data;
+
+	/* not a disk based tuple */
+	ItemPointerSetInvalid(&tuple->t_self);
+
+	/* we can only figure this out after reassembling the transactions */
+	tuple->t_tableOid = InvalidOid;
+
+	/* data is not stored aligned, copy to aligned storage */
+	memcpy((char *) &xlhdr,
+		   data,
+		   SizeOfNeonHeapHeader);
+
+	memset(header, 0, SizeofHeapTupleHeader);
+
+	memcpy(((char *) tuple->t_data) + SizeofHeapTupleHeader,
+		   data + SizeOfNeonHeapHeader,
+		   datalen);
+
+	header->t_infomask = xlhdr.t_infomask;
+	header->t_infomask2 = xlhdr.t_infomask2;
+	header->t_hoff = xlhdr.t_hoff;
+}
+#endif
--- a/pgxn/neon_walredo/inmem_smgr.c
+++ b/pgxn/neon_walredo/inmem_smgr.c
@@ -68,8 +68,13 @@ static void inmem_close(SMgrRelation reln, ForkNumber forknum);
 static void inmem_create(SMgrRelation reln, ForkNumber forknum, bool isRedo);
 static bool inmem_exists(SMgrRelation reln, ForkNumber forknum);
 static void inmem_unlink(NRelFileInfoBackend rinfo, ForkNumber forknum, bool isRedo);
+#if PG_MAJORVERSION_NUM >= 17
+static bool inmem_prefetch(SMgrRelation reln, ForkNumber forknum,
+						   BlockNumber blocknum, int nblocks);
+#else
 static bool inmem_prefetch(SMgrRelation reln, ForkNumber forknum,
 						   BlockNumber blocknum);
+#endif
 #if PG_MAJORVERSION_NUM < 16
 static void inmem_extend(SMgrRelation reln, ForkNumber forknum,
 						 BlockNumber blocknum, char *buffer, bool skipFsync);
@@ -93,7 +98,9 @@ static BlockNumber inmem_nblocks(SMgrRelation reln, ForkNumber forknum);
 static void inmem_truncate(SMgrRelation reln, ForkNumber forknum,
 						   BlockNumber nblocks);
 static void inmem_immedsync(SMgrRelation reln, ForkNumber forknum);
-
+#if PG_MAJORVERSION_NUM >= 17
+static void inmem_registersync(SMgrRelation reln, ForkNumber forknum);
+#endif

 /*
 *	inmem_init() -- Initialize private state
@@ -190,6 +197,14 @@ inmem_close(SMgrRelation reln, ForkNumber forknum)
 {
 }

+#if PG_MAJORVERSION_NUM >= 17
+static bool
+inmem_prefetch(SMgrRelation reln, ForkNumber forknum, BlockNumber blocknum,
+			   int nblocks)
+{
+	return true;
+}
+#else
 /*
 *	inmem_prefetch() -- Initiate asynchronous read of the specified block of a relation
 */
@@ -198,6 +213,7 @@ inmem_prefetch(SMgrRelation reln, ForkNumber forknum, BlockNumber blocknum)
 {
 	return true;
 }
+#endif

 /*
 * inmem_writeback() -- Tell the kernel to write pages back to storage.
@@ -211,11 +227,13 @@ inmem_writeback(SMgrRelation reln, ForkNumber forknum,
 /*
 *	inmem_read() -- Read the specified block from a relation.
 */
+#if PG_MAJORVERSION_NUM < 16
 static void
 inmem_read(SMgrRelation reln, ForkNumber forknum, BlockNumber blkno,
-#if PG_MAJORVERSION_NUM < 16
 		   char *buffer)
 #else
+static void
+inmem_read(SMgrRelation reln, ForkNumber forknum, BlockNumber blkno,
 		   void *buffer)
 #endif
 {
@@ -228,6 +246,18 @@ inmem_read(SMgrRelation reln, ForkNumber forknum, BlockNumber blkno,
 		memcpy(buffer, page_body[pg], BLCKSZ);
 }

+#if PG_MAJORVERSION_NUM >= 17
+static void
+inmem_readv(SMgrRelation reln, ForkNumber forknum, BlockNumber blkno,
+			void **buffers, BlockNumber nblocks)
+{
+	for (int i = 0; i < nblocks; i++)
+	{
+		inmem_read(reln, forknum, blkno, buffers[i]);
+	}
+}
+#endif
+
 /*
 *	inmem_write() -- Write the supplied block at the appropriate location.
 *
@@ -280,6 +310,18 @@ inmem_write(SMgrRelation reln, ForkNumber forknum, BlockNumber blocknum,
 	memcpy(page_body[pg], buffer, BLCKSZ);
 }

+#if PG_MAJORVERSION_NUM >= 17
+static void
+inmem_writev(SMgrRelation reln, ForkNumber forknum, BlockNumber blkno,
+			 const void **buffers, BlockNumber nblocks, bool skipFsync)
+{
+	for (int i = 0; i < nblocks; i++)
+	{
+		inmem_write(reln, forknum, blkno, buffers[i], skipFsync);
+	}
+}
+#endif
+
 /*
 *	inmem_nblocks() -- Get the number of blocks stored in a relation.
 */
@@ -315,6 +357,13 @@ inmem_immedsync(SMgrRelation reln, ForkNumber forknum)
 {
 }

+#if PG_MAJORVERSION_NUM >= 17
+static void
+inmem_registersync(SMgrRelation reln, ForkNumber forknum)
+{
+}
+#endif
+
 static const struct f_smgr inmem_smgr =
 {
 	.smgr_init = inmem_init,
@@ -328,23 +377,39 @@ static const struct f_smgr inmem_smgr =
 #if PG_MAJORVERSION_NUM >= 16
 	.smgr_zeroextend = inmem_zeroextend,
 #endif
+#if PG_MAJORVERSION_NUM >= 17
+	.smgr_prefetch = inmem_prefetch,
+	.smgr_readv = inmem_readv,
+	.smgr_writev = inmem_writev,
+#else
 	.smgr_prefetch = inmem_prefetch,
 	.smgr_read = inmem_read,
 	.smgr_write = inmem_write,
+#endif
 	.smgr_writeback = inmem_writeback,
 	.smgr_nblocks = inmem_nblocks,
 	.smgr_truncate = inmem_truncate,
 	.smgr_immedsync = inmem_immedsync,
+
+#if PG_MAJORVERSION_NUM >= 17
+	.smgr_registersync = inmem_registersync,
+#endif
+
+	.smgr_start_unlogged_build = NULL,
+	.smgr_finish_unlogged_build_phase_1 = NULL,
+	.smgr_end_unlogged_build = NULL,
+	.smgr_read_slru_segment = NULL,
 };

 const f_smgr *
-smgr_inmem(BackendId backend, NRelFileInfo rinfo)
+smgr_inmem(ProcNumber backend, NRelFileInfo rinfo)
 {
 	Assert(InRecovery);
-	if (backend != InvalidBackendId)
-		return smgr_standard(backend, rinfo);
-	else
-		return &inmem_smgr;
+	// // What does this code do?
+	// if (backend != INVALID_PROC_NUMBER)
+	// 	return smgr_standard(backend, rinfo);
+	// else
+	return &inmem_smgr;
 }

 void
--- a/pgxn/neon_walredo/inmem_smgr.h
+++ b/pgxn/neon_walredo/inmem_smgr.h
@@ -11,7 +11,7 @@
 #ifndef INMEM_SMGR_H
 #define INMEM_SMGR_H

-extern const f_smgr *smgr_inmem(BackendId backend, NRelFileInfo rinfo);
+extern const f_smgr *smgr_inmem(ProcNumber backend, NRelFileInfo rinfo);
 extern void smgr_init_inmem(void);

 #endif /* INMEM_SMGR_H */
--- a/pgxn/neon_walredo/walredoproc.c
+++ b/pgxn/neon_walredo/walredoproc.c
@@ -100,6 +100,9 @@
 #include "storage/buf_internals.h"
 #include "storage/bufmgr.h"
 #include "storage/dsm.h"
+#if PG_MAJORVERSION_NUM >= 17
+#include "storage/dsm_registry.h"
+#endif
 #include "storage/ipc.h"
 #include "storage/pg_shmem.h"
 #include "storage/pmsignal.h"
@@ -137,7 +140,7 @@ static BufferTag target_redo_tag;

 static XLogReaderState *reader_state;

-#define TRACE DEBUG5
+#define TRACE LOG

 #ifdef HAVE_LIBSECCOMP

@@ -517,6 +520,10 @@ CreateFakeSharedMemoryAndSemaphores()
 	/*
 	 * Set up xlog, clog, and buffers
 	 */
+#if PG_MAJORVERSION_NUM >= 17
+	DSMRegistryShmemInit();
+	VarsupShmemInit();
+#endif
 	XLOGShmemInit();
 	CLOGShmemInit();
 	CommitTsShmemInit();
@@ -566,7 +573,10 @@ CreateFakeSharedMemoryAndSemaphores()
 	/*
 	 * Set up other modules that need some shared memory space
 	 */
+#if PG_MAJORVERSION_NUM < 17
+	/* "snapshot too old" was removed in PG17, and with it the SnapMgr */
 	SnapMgrInit();
+#endif
 	BTreeShmemInit();
 	SyncScanShmemInit();
 	/* Skip due to the 'pg_notify' directory check */
@@ -742,7 +752,7 @@ BeginRedoForBlock(StringInfo input_message)
 		 target_redo_tag.forkNum,
 		 target_redo_tag.blockNum);

-	reln = smgropen(rinfo, InvalidBackendId, RELPERSISTENCE_PERMANENT);
+	reln = smgropen(rinfo, INVALID_PROC_NUMBER, RELPERSISTENCE_PERMANENT);
 	if (reln->smgr_cached_nblocks[forknum] == InvalidBlockNumber ||
 		reln->smgr_cached_nblocks[forknum] < blknum + 1)
 	{
--- a/proxy/Cargo.toml
+++ b/proxy/Cargo.toml
@@ -18,7 +18,6 @@ atomic-take.workspace = true
 aws-config.workspace = true
 aws-sdk-iam.workspace = true
 aws-sigv4.workspace = true
-aws-types.workspace = true
 base64.workspace = true
 bstr.workspace = true
 bytes = { workspace = true, features = ["serde"] }
@@ -26,7 +25,6 @@ camino.workspace = true
 chrono.workspace = true
 clap.workspace = true
 consumption_metrics.workspace = true
-crossbeam-deque.workspace = true
 dashmap.workspace = true
 env_logger.workspace = true
 framed-websockets.workspace = true
@@ -48,11 +46,9 @@ indexmap.workspace = true
 ipnet.workspace = true
 itertools.workspace = true
 lasso = { workspace = true, features = ["multi-threaded"] }
-md5.workspace = true
 measured = { workspace = true, features = ["lasso"] }
 metrics.workspace = true
 once_cell.workspace = true
-opentelemetry.workspace = true
 parking_lot.workspace = true
 parquet.workspace = true
 parquet_derive.workspace = true
@@ -67,7 +63,6 @@ reqwest.workspace = true
 reqwest-middleware = { workspace = true, features = ["json"] }
 reqwest-retry.workspace = true
 reqwest-tracing.workspace = true
-routerify.workspace = true
 rustc-hash.workspace = true
 rustls-pemfile.workspace = true
 rustls.workspace = true
@@ -79,7 +74,6 @@ smol_str.workspace = true
 smallvec.workspace = true
 socket2.workspace = true
 subtle.workspace = true
-task-local-extensions.workspace = true
 thiserror.workspace = true
 tikv-jemallocator.workspace = true
 tikv-jemalloc-ctl = { workspace = true, features = ["use_std"] }
@@ -88,7 +82,6 @@ tokio-postgres-rustls.workspace = true
 tokio-rustls.workspace = true
 tokio-util.workspace = true
 tokio = { workspace = true, features = ["signal"] }
-tower-service.workspace = true
 tracing-opentelemetry.workspace = true
 tracing-subscriber.workspace = true
 tracing-utils.workspace = true
--- a/proxy/src/auth/backend.rs
+++ b/proxy/src/auth/backend.rs
@@ -311,7 +311,9 @@ async fn auth_quirks(
    let (allowed_ips, maybe_secret) = api.get_allowed_ips_and_secret(ctx, &info).await?;

    // check allowed list
-    if !check_peer_addr_is_in_list(&ctx.peer_addr(), &allowed_ips) {
+    if config.ip_allowlist_check_enabled
+        && !check_peer_addr_is_in_list(&ctx.peer_addr(), &allowed_ips)
+    {
        return Err(auth::AuthError::ip_address_not_allowed(ctx.peer_addr()));
    }

@@ -603,6 +605,7 @@ mod tests {
        rate_limiter_enabled: true,
        rate_limiter: AuthRateLimiter::new(&RateBucketInfo::DEFAULT_AUTH_SET),
        rate_limit_ip_subnet: 64,
+        ip_allowlist_check_enabled: true,
    });

    async fn read_message(r: &mut (impl AsyncRead + Unpin), b: &mut BytesMut) -> PgMessage {
--- a/proxy/src/auth/credentials.rs
+++ b/proxy/src/auth/credentials.rs
@@ -538,4 +538,17 @@ mod tests {
        ));
        Ok(())
    }
+
+    #[test]
+    fn test_connection_blocker() {
+        fn check(v: serde_json::Value) -> bool {
+            let peer_addr = IpAddr::from([127, 0, 0, 1]);
+            let ip_list: Vec<IpPattern> = serde_json::from_value(v).unwrap();
+            check_peer_addr_is_in_list(&peer_addr, &ip_list)
+        }
+
+        assert!(check(json!([])));
+        assert!(check(json!(["127.0.0.1"])));
+        assert!(!check(json!(["255.255.255.255"])));
+    }
 }
--- a/proxy/src/bin/local_proxy.rs
+++ b/proxy/src/bin/local_proxy.rs
@@ -92,6 +92,12 @@ struct SqlOverHttpArgs {

    #[clap(long, default_value_t = 16)]
    sql_over_http_cancel_set_shards: usize,
+
+    #[clap(long, default_value_t = 10 * 1024 * 1024)] // 10 MiB
+    sql_over_http_max_request_size_bytes: u64,
+
+    #[clap(long, default_value_t = 10 * 1024 * 1024)] // 10 MiB
+    sql_over_http_max_response_size_bytes: usize,
 }

 #[tokio::main]
@@ -208,6 +214,8 @@ fn build_config(args: &LocalProxyCliArgs) -> anyhow::Result<&'static ProxyConfig
        },
        cancel_set: CancelSet::new(args.sql_over_http.sql_over_http_cancel_set_shards),
        client_conn_threshold: args.sql_over_http.sql_over_http_client_conn_threshold,
+        max_request_size_bytes: args.sql_over_http.sql_over_http_max_request_size_bytes,
+        max_response_size_bytes: args.sql_over_http.sql_over_http_max_response_size_bytes,
    };

    Ok(Box::leak(Box::new(ProxyConfig {
@@ -224,6 +232,7 @@ fn build_config(args: &LocalProxyCliArgs) -> anyhow::Result<&'static ProxyConfig
            rate_limiter_enabled: false,
            rate_limiter: BucketRateLimiter::new(vec![]),
            rate_limit_ip_subnet: 64,
+            ip_allowlist_check_enabled: true,
        },
        require_client_ip: false,
        handshake_timeout: Duration::from_secs(10),
--- a/proxy/src/bin/proxy.rs
+++ b/proxy/src/bin/proxy.rs
@@ -62,12 +62,13 @@ static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
 #[derive(Clone, Debug, ValueEnum)]
 enum AuthBackendType {
    Console,
-    #[cfg(feature = "testing")]
-    Postgres,
    // clap only shows the name, not the alias, in usage text.
    // TODO: swap name/alias and deprecate "link"
    #[value(name("link"), alias("web"))]
    Web,
+
+    #[cfg(feature = "testing")]
+    Postgres,
 }

 /// Neon proxy/router
@@ -224,6 +225,10 @@ struct ProxyCliArgs {
    /// Whether to retry the wake_compute request
    #[clap(long, default_value = config::RetryConfig::WAKE_COMPUTE_DEFAULT_VALUES)]
    wake_compute_retry: String,
+
+    /// Configure if this is a private access proxy for the POC: In that case the proxy will ignore the IP allowlist
+    #[clap(long, default_value_t = false, value_parser = clap::builder::BoolishValueParser::new(), action = clap::ArgAction::Set)]
+    is_private_access_proxy: bool,
 }

 #[derive(clap::Args, Clone, Copy, Debug)]
@@ -264,6 +269,12 @@ struct SqlOverHttpArgs {

    #[clap(long, default_value_t = 64)]
    sql_over_http_cancel_set_shards: usize,
+
+    #[clap(long, default_value_t = 10 * 1024 * 1024)] // 10 MiB
+    sql_over_http_max_request_size_bytes: u64,
+
+    #[clap(long, default_value_t = 10 * 1024 * 1024)] // 10 MiB
+    sql_over_http_max_response_size_bytes: usize,
 }

 #[tokio::main]
@@ -629,17 +640,19 @@ fn build_config(args: &ProxyCliArgs) -> anyhow::Result<&'static ProxyConfig> {
            let api = console::provider::ConsoleBackend::Console(api);
            auth::Backend::Console(MaybeOwned::Owned(api), ())
        }
-        #[cfg(feature = "testing")]
-        AuthBackendType::Postgres => {
-            let url = args.auth_endpoint.parse()?;
-            let api = console::provider::mock::Api::new(url);
-            let api = console::provider::ConsoleBackend::Postgres(api);
-            auth::Backend::Console(MaybeOwned::Owned(api), ())
-        }
+
        AuthBackendType::Web => {
            let url = args.uri.parse()?;
            auth::Backend::Web(MaybeOwned::Owned(url), ())
        }
+
+        #[cfg(feature = "testing")]
+        AuthBackendType::Postgres => {
+            let url = args.auth_endpoint.parse()?;
+            let api = console::provider::mock::Api::new(url, !args.is_private_access_proxy);
+            let api = console::provider::ConsoleBackend::Postgres(api);
+            auth::Backend::Console(MaybeOwned::Owned(api), ())
+        }
    };

    let config::ConcurrencyLockOptions {
@@ -675,6 +688,8 @@ fn build_config(args: &ProxyCliArgs) -> anyhow::Result<&'static ProxyConfig> {
        },
        cancel_set: CancelSet::new(args.sql_over_http.sql_over_http_cancel_set_shards),
        client_conn_threshold: args.sql_over_http.sql_over_http_client_conn_threshold,
+        max_request_size_bytes: args.sql_over_http.sql_over_http_max_request_size_bytes,
+        max_response_size_bytes: args.sql_over_http.sql_over_http_max_response_size_bytes,
    };
    let authentication_config = AuthenticationConfig {
        thread_pool,
@@ -682,6 +697,7 @@ fn build_config(args: &ProxyCliArgs) -> anyhow::Result<&'static ProxyConfig> {
        rate_limiter_enabled: args.auth_rate_limit_enabled,
        rate_limiter: AuthRateLimiter::new(args.auth_rate_limit.clone()),
        rate_limit_ip_subnet: args.auth_rate_limit_ip_subnet,
+        ip_allowlist_check_enabled: !args.is_private_access_proxy,
    };

    let config = Box::leak(Box::new(ProxyConfig {
--- a/proxy/src/cache/endpoints.rs
+++ b/proxy/src/cache/endpoints.rs
@@ -242,6 +242,6 @@ mod tests {
    #[test]
    fn test() {
        let s = "{\"branch_created\":null,\"endpoint_created\":{\"endpoint_id\":\"ep-rapid-thunder-w0qqw2q9\"},\"project_created\":null,\"type\":\"endpoint_created\"}";
-        let _: ControlPlaneEventKey = serde_json::from_str(s).unwrap();
+        serde_json::from_str::<ControlPlaneEventKey>(s).unwrap();
    }
 }
--- a/proxy/src/config.rs
+++ b/proxy/src/config.rs
@@ -56,6 +56,8 @@ pub struct HttpConfig {
    pub pool_options: GlobalConnPoolOptions,
    pub cancel_set: CancelSet,
    pub client_conn_threshold: u64,
+    pub max_request_size_bytes: u64,
+    pub max_response_size_bytes: usize,
 }

 pub struct AuthenticationConfig {
@@ -64,6 +66,7 @@ pub struct AuthenticationConfig {
    pub rate_limiter_enabled: bool,
    pub rate_limiter: AuthRateLimiter,
    pub rate_limit_ip_subnet: u8,
+    pub ip_allowlist_check_enabled: bool,
 }

 impl TlsConfig {
--- a/proxy/src/console/messages.rs
+++ b/proxy/src/console/messages.rs
@@ -395,7 +395,7 @@ mod tests {
                }
            }
        });
-        let _: KickSession<'_> = serde_json::from_str(&json.to_string())?;
+        serde_json::from_str::<KickSession<'_>>(&json.to_string())?;

        Ok(())
    }
@@ -403,7 +403,7 @@ mod tests {
    #[test]
    fn parse_db_info() -> anyhow::Result<()> {
        // with password
-        let _: DatabaseInfo = serde_json::from_value(json!({
+        serde_json::from_value::<DatabaseInfo>(json!({
            "host": "localhost",
            "port": 5432,
            "dbname": "postgres",
@@ -413,7 +413,7 @@ mod tests {
        }))?;

        // without password
-        let _: DatabaseInfo = serde_json::from_value(json!({
+        serde_json::from_value::<DatabaseInfo>(json!({
            "host": "localhost",
            "port": 5432,
            "dbname": "postgres",
@@ -422,7 +422,7 @@ mod tests {
        }))?;

        // new field (forward compatibility)
-        let _: DatabaseInfo = serde_json::from_value(json!({
+        serde_json::from_value::<DatabaseInfo>(json!({
            "host": "localhost",
            "port": 5432,
            "dbname": "postgres",
@@ -441,7 +441,7 @@ mod tests {
            "address": "0.0.0.0",
            "aux": dummy_aux(),
        });
-        let _: WakeCompute = serde_json::from_str(&json.to_string())?;
+        serde_json::from_str::<WakeCompute>(&json.to_string())?;
        Ok(())
    }

@@ -451,18 +451,18 @@ mod tests {
        let json = json!({
            "role_secret": "secret",
        });
-        let _: GetRoleSecret = serde_json::from_str(&json.to_string())?;
+        serde_json::from_str::<GetRoleSecret>(&json.to_string())?;
        let json = json!({
            "role_secret": "secret",
            "allowed_ips": ["8.8.8.8"],
        });
-        let _: GetRoleSecret = serde_json::from_str(&json.to_string())?;
+        serde_json::from_str::<GetRoleSecret>(&json.to_string())?;
        let json = json!({
            "role_secret": "secret",
            "allowed_ips": ["8.8.8.8"],
            "project_id": "project",
        });
-        let _: GetRoleSecret = serde_json::from_str(&json.to_string())?;
+        serde_json::from_str::<GetRoleSecret>(&json.to_string())?;

        Ok(())
    }
--- a/proxy/src/console/mgmt.rs
+++ b/proxy/src/console/mgmt.rs
@@ -78,7 +78,7 @@ pub(crate) type ComputeReady = DatabaseInfo;

 // TODO: replace with an http-based protocol.
 struct MgmtHandler;
-#[async_trait::async_trait]
+
 impl postgres_backend::Handler<tokio::net::TcpStream> for MgmtHandler {
    async fn process_query(
        &mut self,
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Anastasia Lubennikova	f62053b614	Single click pg_upgrade RFC	2024-09-19 14:14:06 +01:00
Heikki Linnakangas	a523548ed1	Remove unused cleanup_remaining_timeline_fs_traces function There's some more code that still checks for uninit and delete markers, see callers of is_delete_mark and is_uninit_mark, and github issue #5718. But these functions were outright dead.	2024-09-19 11:57:10 +03:00
Heikki Linnakangas	2d4e5af18b	Remove unused code for parsing a postgresql.conf file	2024-09-19 11:57:10 +03:00
Heikki Linnakangas	5da2340e74	Remove misc dead code in control_plane/	2024-09-19 11:57:10 +03:00
Heikki Linnakangas	7b34c2d7af	Remove misc dead code in libs/	2024-09-19 11:57:10 +03:00
Heikki Linnakangas	15ae1fc3df	Remove a few postgres constants that were not used Dead code is generally useless, but with Postgres constants in particular, I'm also worried that if they're not used anywhere, we might fail to update them at a Postgres version update, and get very confused later when they have wrong values.	2024-09-19 11:57:10 +03:00
Heikki Linnakangas	728b79b9dd	Remove some unnecessary derives	2024-09-19 11:57:10 +03:00
Alex Chi Z.	9d1c6f23d3	fix(storage-scrubber): log version after initialize the logger (#9049 ) When I checked the log in Grafana I couldn't find the scrubber version. Then I realized that it should be logged after the logger gets initialized. ## Summary of changes Log after initializing the logger for the scrubber. Signed-off-by: Alex Chi Z <chi@neon.tech>	2024-09-18 14:13:57 -04:00
Christian Schwarz	035a49a6b2	`neon_local start`: parallel startup to break cyclic dependency (#8950 ) (Found this useful during investigation https://github.com/neondatabase/cloud/issues/16886.) Problem ------- Before this PR, `neon_local` sequentially does the following: 1. launch storcon process 2. wait for storcon to signal readiness [here](`75310fe441/control_plane/src/storage_controller.rs (L804-L808)`) 3. start pageserver 4. wait for pageserver to become ready [here](`c43e664ff5/control_plane/src/pageserver.rs (L343-L346)`) 5. etc The problem is that storcon's readiness waits for the [`startup_reconcile`](`cbcd4058ed/storage_controller/src/service.rs (L520-L523)`) to complete. But pageservers aren't started at this point. So, worst case we wait for `STARTUP_RECONCILE_TIMEOUT/2`, i.e., 15s. This is more than the 10s default timeout allowed by neon_local. So, the result is that `neon_local start` fails to start storcon and stops everything. Solution -------- In this PR I choose the the radical solution to start everything in parallel. It junks up the output because we do stuff like `print!(".")` to indicate progress. We should just abandon that. And switch to `utils::logging` + `tracing` with separate spans for each component. I can do that in this PR or we leave it as a follow-up. Alternatives Considered ----------------------- The Pageserver's `/v1/status` or in fact any endpoint of the mgmt API will not `accept()` on the mgmt API socket until after the `re-attach` call to storcon returned success. So, it's insufficient to change the startup order to start Pageservers first. We cannot easily change Pageserver startup order because `init_tenant_mgr` must complete before we start serving the mgmt API. Otherwise tenant detach calls et al can race with `init_tenant_mgr`. We'd have to add a "loading" state to tenant mgr and make all API endpoints except `/v1/status` wait for _that_ to complete. Related ------- - https://github.com/neondatabase/neon/pull/6475	2024-09-18 18:17:55 +02:00
Folke Behrens	794bd4b866	proxy: mock cplane usable without allowed-ips table (#9046 )	2024-09-18 17:14:53 +02:00
Alexander Bayandin	ac6a1151ae	test_postgres_version: reenable version check for prereleased versions	2024-09-18 14:51:59 +01:00
Tristan Partin	2f37f0384c	Add v17 to revisions.json Signed-off-by: Tristan Partin <tristan@neon.tech>	2024-09-18 14:51:59 +01:00
Alexander Bayandin	e161a2fa42	CI(deploy): fix deploy to staging and prod (#9030 ) ## Problem It turns out the previous approach (with `skip_if` input) doesn't work (from https://github.com/neondatabase/neon/pull/9017). Revert it and use more straightforward if-conditions ## Summary of changes - Revert `efbe8db7f1` - Add if-condition to`promote-compatibility-data` job and relevant comments	2024-09-18 14:26:47 +01:00
Folke Behrens	c5cd8577ff	proxy: make sql-over-http max request/response sizes configurable (#9029 )	2024-09-18 13:58:51 +02:00
Heikki Linnakangas	3454ef7507	Refactor ImageLayerWriter to avoid passing a Timeline to finish() (#9028 ) Commit `ca5390a89d` made a similar change to DeltaLayerWriter. We bumped into this with Stas with our hackathon project, to create a standalong program to create image layers directly from a Postgres data directory. It needs to create image layers without having a Timeline and other pageserver machinery. This downgrades the "created image layer {}" message from INFO to TRACE level. TRACE is used for the corresponding message on delta layer creation too. The path logged in the message is now the temporary path, before the file is renamed to its final name. Again commit `ca5390a89d` made the same change for the message on delta layer creation.	2024-09-18 13:16:51 +03:00
Christian Schwarz	135e7e4306	add `neon_local` subcommand for the broker & use that from regression tests (#8948 ) There's currently no way to just start/stop broker from `neon_local`. This PR * adds a sub-command * uses that sub-command from the test suite instead of the pre-existing Python `subprocess` based approach. Found this useful during investigation https://github.com/neondatabase/cloud/issues/16886.	2024-09-18 09:10:27 +02:00
Christian Schwarz	3cd2a3f931	refactor(walredo): process launch & kill-on-error machinery (#8951 ) Immediate benefit: easier to spot what's going on. Later benefit: use the extracted method in PR - https://github.com/neondatabase/neon/pull/8952 which adds a `ping` command to walredo. Found this useful during investigation https://github.com/neondatabase/cloud/issues/16886.	2024-09-17 19:16:33 +00:00
Alexander Bayandin	d78f5ce6da	CI: don't fetch the whole git history if it's not required (#9021 ) ## Problem We do use `actions/checkout` with `fetch-depth: 0` when it's not required ## Summary of changes - Remove unneeded `fetch-depth: 0` - Add a comment if `fetch-depth: 0` is required	2024-09-17 18:40:05 +01:00
Arpad Müller	a1b71b73fe	Rename some S3 usages to "remote storage" in exposed messages (#8999 ) In exposed messages like log messages we mentioned "S3", which is not entirely accurate as we support Azure blob storage now as well.	2024-09-17 19:15:01 +02:00
Tristan Partin	6138eb50e9	Fix test code related to migrations We added another migration in `5876c441ab`, but didn't bump this value. This had no effect, but best to fix it anyway. Signed-off-by: Tristan Partin <tristan@neon.tech>	2024-09-17 15:56:05 +01:00
Heikki Linnakangas	d211f00f05	Remove unnecessary dependencies (#9000 ) Found by "cargo machete"	2024-09-17 17:55:45 +03:00
Alexander Bayandin	cd4276fd65	CI: fix release pipeline (#9017 ) ## Problem We've got 2 non-blocking failures on the release pipeline: - `promote-compatibility-data` job got skipped _presumably_ because one of the dependencies of `deploy` job (`push-to-acr-dev`) got skipped (https://github.com/neondatabase/neon/pull/8940) - `coverage-report` job fails because we don't build debug artifacts in the release branch (https://github.com/neondatabase/neon/pull/8561) ## Summary of changes - Always run `push-to-acr-dev` / `push-to-acr-prod` jobs, but add `skip_if` parameter to the reusable workflow, which can skip the job internally, without skipping externally - Do not run `coverage-report` on release branches	2024-09-17 10:17:48 +01:00
Vlad Lazar	b719d58863	storcon: forward requests from stepped down instance to the current leader (#8954 ) ## Problem It turns out that we can't rely on external orchestration to promptly route trafic to the new leader. This is downtime inducing. Forwarding provides a safe way out. ## Safety We forward when: 1. Request is not one of ["/control/v1/step_down", "/status", "/ready", "/metrics"] 2. Current instance is in [`LeadershipStatus::SteppedDown`] state 3. There is a leader in the database to forward to 4. Leader from step (3) is not the current instance If a storcon instance is persisted in the database, then we know that it is the current leader. There's one exception: time between handling step-down request and the new leader updating the database. Let's treat the happy case first. The stepped down node does not produce any side effects, since all request handling happens on the leader. As for the edge case, we are guaranteed to always have a maximum of two running instances. Hence, if we are in the edge case scenario the leader persisted in the database is the stepped down instance that received the request. Condition (4) above covers this scenario. ## Summary of changes * Conversion utilities for reqwest <-> hyper. I'm not happy with these, but I don't see a better way. Open to suggestions. * Add request forwarding logic * Update each request handler. Again, not happy with this. If anyone knows a nice to wrap the handlers, lmk. Me and Joonas tried :/ * Update each handler to maybe forward * Tweak tests to showcase new behaviour	2024-09-17 09:25:42 +01:00
Heikki Linnakangas	2db840d8b8	Move a few test functions related to auth tokens to separate file (#9018 ) For readability. neon_fixtures.py is huge.	2024-09-17 06:53:18 +03:00
Heikki Linnakangas	4295ff0f07	Mark a couple of test fixtures as session-scoped (#9018 ) pg_distrib_dir doesn't include the Postgres version and only depends on env variables which cannot change during a test run, so it can be marked as session-scoped. Similarly, the platform cannot change during a test run.	2024-09-17 06:53:18 +03:00
Heikki Linnakangas	c6f56b8462	Remove redundant get_dir_size() function (#9018 ) There was another copy of it in utils.py. The only difference is that the version in utils.py tolerates files that are concurrently removed. That seems fine for the few callers in neon_fixtures.py too.	2024-09-17 06:53:18 +03:00
Heikki Linnakangas	fec9321fc0	Use Path type in a few more places in neon_fixtures.py (#9018 ) This is in preparation of replacing neon_fixtures.get_dir_size with neon_fixtures.utils.get_dir_size() in next commit.	2024-09-17 06:53:18 +03:00
Heikki Linnakangas	3a52e356c1	Remove unused function (#9018 )	2024-09-17 06:53:18 +03:00
Tristan Partin	5e16c7bb0b	Generate pgbench data on the server for most tests This should generally be faster when running tests, especially those that run with higher scales. Ignoring test_lfc_resize since it seems like we are hitting a query timeout for some reason that I have yet to investigate. A little bit of improvemnt is better than none. Signed-off-by: Tristan Partin <tristan@neon.tech>	2024-09-16 23:37:36 +01:00
Heikki Linnakangas	2bbb4d3e1c	Remove misc unused code (#9014 )	2024-09-16 18:45:19 +00:00
Matthias van de Meent	c8bedca582	Fix PG17's extension modifications (#9010 ) This also reduces the GRANT statements to one per created _reset function	2024-09-16 17:06:31 +01:00
Tristan Partin	5876c441ab	Grant access to pg_show_replication_origin_status for neon_superuser Signed-off-by: Tristan Partin <tristan@neon.tech>	2024-09-16 16:38:55 +01:00
Alexander Bayandin	b2c83db54d	CI(gather-rust-build-stats): set PQ_LIB_DIR to Postgres 17 (#9001 ) ## Problem `gather-rust-build-stats` extra CI job fails with ``` "PQ_LIB_DIR" doesn't exist in the configured path: "/__w/neon/neon/pg_install/v16/lib" ``` ## Summary of changes - Use the path to Postgres 17 for the `gather-rust-build-stats` job. The job uses Postgres built by `make walproposer-lib`	2024-09-16 12:44:26 +01:00
Matthias van de Meent	0a8c5e1214	Fix broken image for PG17 (#8998 ) Most extensions are not required to run Neon-based PostgreSQL, but the Neon extension is _quite_ critical, so let's make sure we include it. ## Problem Staging doesn't have working compute images for PG17 ## Summary of changes Disable some PG17 filters so that we get the critical components into the PG17 image	2024-09-13 15:10:52 +01:00
Matthias van de Meent	78938d1b59	[compute/postgres] feature: PostgreSQL 17 (#8573 ) This adds preliminary PG17 support to Neon, based on RC1 / 2024-09-04 `07b828e9d4` NOTICE: The data produced by the included version of the PostgreSQL fork may not be compatible with the future full release of PostgreSQL 17 due to expected or unexpected future changes in magic numbers and internals. DO NOT EXPECT DATA IN V17-TENANTS TO BE COMPATIBLE WITH THE 17.0 RELEASE! Co-authored-by: Anastasia Lubennikova <anastasia@neon.tech> Co-authored-by: Alexander Bayandin <alexander@neon.tech> Co-authored-by: Konstantin Knizhnik <knizhnik@neon.tech> Co-authored-by: Heikki Linnakangas <heikki@neon.tech>	2024-09-12 23:18:41 +01:00
Stefan Radig	fcab61bdcd	Prototype implementation for private access poc (#8976 ) ## Problem For the Private Access POC we want users to be able to disable access from the public proxy. To limit the number of changes this can be done by configuring an IP allowlist [ "255.255.255.255" ]. For the Private Access proxy a new commandline flag allows to disable IP allowlist completely. See https://www.notion.so/neondatabase/Neon-Private-Access-POC-Proposal-8f707754e1ab4190ad5709da7832f020?d=887495c15e884aa4973f973a8a0a582a#7ac6ec249b524a74adbeddc4b84b8f5f for details about the POC., ## Summary of changes - Adding the commandline flag is_private_access_proxy=true will disable IP allowlist	2024-09-12 15:55:12 +01:00
Tristan Partin	9e3ead3689	Collect the last of on-demand WAL download in CreateReplicationSlot reverts Signed-off-by: Tristan Partin <tristan@neon.tech>	2024-09-12 11:31:38 +01:00
Heikki Linnakangas	8dc069037b	Remove NeonEnvBuilder.start() function It feels wrong to me to start() from the builder object. Surely the thing you start is the environment itself, not its configuration.	2024-09-12 01:28:56 +03:00
Heikki Linnakangas	0a363c3dce	Add --timeline-id option to "neon_local timeline branch" command Makes it consistent with the "timeline create" and "timeline import" commands, which allowed you to pass the timeline id as argument. This also makes it unnecessary to parse the timeline ID from the output in the python function that calls it.	2024-09-12 01:28:56 +03:00
Heikki Linnakangas	aeca15008c	Remove obsolete and misleading comment The tenant ID was not actually generated here but in NeonEnvBuilder. And the "neon_local init" command hasn't been able to generate the initial tenant since `8712e1899e` anyway.	2024-09-12 01:28:56 +03:00
Heikki Linnakangas	43846b72fa	Remove unused "neon_local init --pg-version" arg It has been unused since commit `8712e1899e`, when it stopped creating the initial timeline.	2024-09-12 01:28:56 +03:00
John Spray	cb060548fb	libs: tweak PageserverUtilization::is_overloaded (#8946 ) ## Problem Having run in production for a while, we see that nodes are generally safely oversubscribed by about a factor of 2. ## Summary of changes Tweak the is_overloaded method to check for utililzation over 200% rather than over 100%	2024-09-11 18:45:34 +01:00
Folke Behrens	bae793ffcd	proxy: Handle all let underscore instances (#8898 ) * Most can be simply replaced * One instance renamed to _rtchk (return-type check)	2024-09-10 15:36:08 +02:00
John Spray	26b5fcdc50	reinstate write-path key check (#8973 ) ## Problem In https://github.com/neondatabase/neon/pull/8621, validation of keys during ingest was removed because the places where we actually store keys are now past the point where we have already converted them to CompactKey (i128) representation. ## Summary of changes Reinstate validation at an earlier stage in ingest. This doesn't cover literally every place we write a key, but it covers most cases where we're trusting postgres to give us a valid key (i.e. one that doesn't try and use a custom spacenode).	2024-09-10 12:54:25 +01:00
Arpad Müller	97582178cb	Remove async_trait from the Handler trait (#8958 ) Newest attempt to remove `async_trait` from the Handler trait. Earlier attempts were in #7301 and #8296 .	2024-09-10 02:40:00 +02:00
				`@@ -0,0 +1 @@`
				`GRANT EXECUTE ON FUNCTION pg_show_replication_origin_status TO neon_superuser;`