3.06

this is introduced since Mar 08 2022

.github/dependabot.yml

@@ -3,8 +3,8 @@ updates:
 - package-ecosystem: "github-actions"
   directory: "/"
   schedule:
-      interval: "daily"
+      interval: "weekly"
 - package-ecosystem: gomod
   directory: "/"
   schedule:
-    interval: daily
+    interval: weekly

.github/pull_request_template.md

@@ -0,0 +1,10 @@
+# What problem are we solving?
+
+
+
+# How are we solving the problem?
+
+
+# Checks
+- [ ] I have added unit tests if possible.
+- [ ] I will add related wiki document changes and link to this PR after merging.

.github/workflows/binaries_release4.yml

@@ -0,0 +1,60 @@
+# This is a basic workflow to help you get started with Actions
+
+name: "go: build versioned binaries for linux with all tags"
+
+on:
+  push:
+    tags:
+      - '*'
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+permissions:
+  contents: read
+
+jobs:
+
+  build-release-binaries_linux:
+    permissions:
+      contents: write  # for wangyoucao577/go-release-action to upload release assets
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        goos: [linux]
+        goarch: [amd64]
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@629c2de402a417ea7690ca6ce3f33229e27606a5 # v2
+      - name: Go Release Binaries Normal Volume Size
+        uses: wangyoucao577/go-release-action@16624612d4e2b73de613857a362d294700207fff # v1.22
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          goos: ${{ matrix.goos }}
+          goarch: ${{ matrix.goarch }}
+          overwrite: true
+          build_flags: -tags elastic,ydb,gocdk,hdfs
+          pre_command: export CGO_ENABLED=0 && export GODEBUG=http2client=0
+          # build_flags: -tags 5BytesOffset # optional, default is
+          ldflags: -extldflags -static -X github.com/chrislusf/seaweedfs/weed/util.COMMIT=${{github.sha}}
+          # Where to run `go build .`
+          project_path: weed
+          binary_name: weed
+          asset_name: "${{ matrix.goos }}_${{ matrix.goarch }}_full"
+      - name: Go Release Large Disk Binaries
+        uses: wangyoucao577/go-release-action@16624612d4e2b73de613857a362d294700207fff # v1.22
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          goos: ${{ matrix.goos }}
+          goarch: ${{ matrix.goarch }}
+          overwrite: true
+          pre_command: export CGO_ENABLED=0 && export GODEBUG=http2client=0
+          build_flags: -tags 5BytesOffset,elastic,ydb,gocdk,hdfs
+          ldflags: -extldflags -static -X github.com/chrislusf/seaweedfs/weed/util.COMMIT=${{github.sha}}
+          # Where to run `go build .`
+          project_path: weed
+          binary_name: weed
+          asset_name: "${{ matrix.goos }}_${{ matrix.goarch }}_full_large_disk"

.github/workflows/codeql.yml

@@ -0,0 +1,43 @@
+name: "Code Scanning - Action"
+
+on:
+  pull_request:
+
+jobs:
+  CodeQL-Build:
+    # CodeQL runs on ubuntu-latest, windows-latest, and macos-latest
+    runs-on: ubuntu-latest
+
+    permissions:
+      # required for all workflows
+      security-events: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v2
+        # Override language selection by uncommenting this and choosing your languages
+        with:
+          languages: go
+
+      # Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below).
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v2
+
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+      # ✏️ If the Autobuild fails above, remove it and uncomment the following
+      #    three lines and modify them (or add more) to build your code if your
+      #    project uses a compiled language
+
+      #- run: |
+      #     make bootstrap
+      #     make release
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v2

.github/workflows/container_dev.yml

@@ -20,7 +20,7 @@ jobs:
       -
         name: Docker meta
         id: docker_meta
-        uses: docker/metadata-action@f2a13332ac1ce8c0a71aeac48a150dbb1838ab67 # v3
+        uses: docker/metadata-action@69f6fc9d46f2f8bf0d5491e4aabe0bb8c6a4678a # v3
         with:
           images: |
             chrislusf/seaweedfs
@@ -33,30 +33,30 @@ jobs:
             org.opencontainers.image.vendor=Chris Lu
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@27d0a4f181a40b142cce983c5393082c365d1480 # v1
+        uses: docker/setup-qemu-action@8b122486cedac8393e77aa9734c3528886e4a1a8 # v1
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@94ab11c41e45d028884a99163086648e898eed25 # v1
+        uses: docker/setup-buildx-action@dc7b9719a96d48369863986a06765841d7ea23f6 # v1
         with:
           buildkitd-flags: "--debug"
       -
         name: Login to Docker Hub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@dd4fa0671be5250ee6f50aedf4cb05514abda2c7 # v1
+        uses: docker/login-action@49ed152c8eca782a232dede0303416e8f356c37b # v1
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       -
         name: Login to GHCR
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@dd4fa0671be5250ee6f50aedf4cb05514abda2c7 # v1
+        uses: docker/login-action@49ed152c8eca782a232dede0303416e8f356c37b # v1
         with:
           registry: ghcr.io
           username: ${{ secrets.GHCR_USERNAME }}
           password: ${{ secrets.GHCR_TOKEN }}
       -
         name: Build
-        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a # v2
+        uses: docker/build-push-action@e551b19e49efd4e98792db7592c17c09b89db8d8 # v2
         with:
           context: ./docker
           push: ${{ github.event_name != 'pull_request' }}

.github/workflows/container_latest.yml

@@ -21,7 +21,7 @@ jobs:
       -
         name: Docker meta
         id: docker_meta
-        uses: docker/metadata-action@f2a13332ac1ce8c0a71aeac48a150dbb1838ab67 # v3
+        uses: docker/metadata-action@69f6fc9d46f2f8bf0d5491e4aabe0bb8c6a4678a # v3
         with:
           images: |
             chrislusf/seaweedfs
@@ -34,30 +34,30 @@ jobs:
             org.opencontainers.image.vendor=Chris Lu
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@27d0a4f181a40b142cce983c5393082c365d1480 # v1
+        uses: docker/setup-qemu-action@8b122486cedac8393e77aa9734c3528886e4a1a8 # v1
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@94ab11c41e45d028884a99163086648e898eed25 # v1
+        uses: docker/setup-buildx-action@dc7b9719a96d48369863986a06765841d7ea23f6 # v1
         with:
           buildkitd-flags: "--debug"
       -
         name: Login to Docker Hub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@dd4fa0671be5250ee6f50aedf4cb05514abda2c7 # v1
+        uses: docker/login-action@49ed152c8eca782a232dede0303416e8f356c37b # v1
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       -
         name: Login to GHCR
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@dd4fa0671be5250ee6f50aedf4cb05514abda2c7 # v1
+        uses: docker/login-action@49ed152c8eca782a232dede0303416e8f356c37b # v1
         with:
           registry: ghcr.io
           username: ${{ secrets.GHCR_USERNAME }}
           password: ${{ secrets.GHCR_TOKEN }}
       -
         name: Build
-        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a # v2
+        uses: docker/build-push-action@e551b19e49efd4e98792db7592c17c09b89db8d8 # v2
         with:
           context: ./docker
           push: ${{ github.event_name != 'pull_request' }}

.github/workflows/container_release1.yml

@@ -20,7 +20,7 @@ jobs:
       -
         name: Docker meta
         id: docker_meta
-        uses: docker/metadata-action@f2a13332ac1ce8c0a71aeac48a150dbb1838ab67 # v3
+        uses: docker/metadata-action@69f6fc9d46f2f8bf0d5491e4aabe0bb8c6a4678a # v3
         with:
           images: |
             chrislusf/seaweedfs
@@ -34,20 +34,20 @@ jobs:
             org.opencontainers.image.vendor=Chris Lu
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@27d0a4f181a40b142cce983c5393082c365d1480 # v1
+        uses: docker/setup-qemu-action@8b122486cedac8393e77aa9734c3528886e4a1a8 # v1
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@94ab11c41e45d028884a99163086648e898eed25 # v1
+        uses: docker/setup-buildx-action@dc7b9719a96d48369863986a06765841d7ea23f6 # v1
       -
         name: Login to Docker Hub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@dd4fa0671be5250ee6f50aedf4cb05514abda2c7 # v1
+        uses: docker/login-action@49ed152c8eca782a232dede0303416e8f356c37b # v1
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       -
         name: Build
-        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a # v2
+        uses: docker/build-push-action@e551b19e49efd4e98792db7592c17c09b89db8d8 # v2
         with:
           context: ./docker
           push: ${{ github.event_name != 'pull_request' }}

.github/workflows/container_release2.yml

@@ -21,7 +21,7 @@ jobs:
       -
         name: Docker meta
         id: docker_meta
-        uses: docker/metadata-action@f2a13332ac1ce8c0a71aeac48a150dbb1838ab67 # v3
+        uses: docker/metadata-action@69f6fc9d46f2f8bf0d5491e4aabe0bb8c6a4678a # v3
         with:
           images: |
             chrislusf/seaweedfs
@@ -35,24 +35,25 @@ jobs:
             org.opencontainers.image.vendor=Chris Lu
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@27d0a4f181a40b142cce983c5393082c365d1480 # v1
+        uses: docker/setup-qemu-action@8b122486cedac8393e77aa9734c3528886e4a1a8 # v1
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@94ab11c41e45d028884a99163086648e898eed25 # v1
+        uses: docker/setup-buildx-action@dc7b9719a96d48369863986a06765841d7ea23f6 # v1
       -
         name: Login to Docker Hub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@dd4fa0671be5250ee6f50aedf4cb05514abda2c7 # v1
+        uses: docker/login-action@49ed152c8eca782a232dede0303416e8f356c37b # v1
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       -
         name: Build
-        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a # v2
+        uses: docker/build-push-action@e551b19e49efd4e98792db7592c17c09b89db8d8 # v2
         with:
           context: ./docker
           push: ${{ github.event_name != 'pull_request' }}
-          file: ./docker/Dockerfile.go_build_large
+          file: ./docker/Dockerfile.go_build
+          build-args: TAGS=5BytesOffset
           platforms: linux/amd64, linux/arm, linux/arm64, linux/386
           tags: ${{ steps.docker_meta.outputs.tags }}
           labels: ${{ steps.docker_meta.outputs.labels }}

.github/workflows/container_release3.yml

@@ -21,7 +21,7 @@ jobs:
       -
         name: Docker meta
         id: docker_meta
-        uses: docker/metadata-action@f2a13332ac1ce8c0a71aeac48a150dbb1838ab67 # v3
+        uses: docker/metadata-action@69f6fc9d46f2f8bf0d5491e4aabe0bb8c6a4678a # v3
         with:
           images: |
             chrislusf/seaweedfs
@@ -35,20 +35,20 @@ jobs:
             org.opencontainers.image.vendor=Chris Lu
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@27d0a4f181a40b142cce983c5393082c365d1480 # v1
+        uses: docker/setup-qemu-action@8b122486cedac8393e77aa9734c3528886e4a1a8 # v1
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@94ab11c41e45d028884a99163086648e898eed25 # v1
+        uses: docker/setup-buildx-action@dc7b9719a96d48369863986a06765841d7ea23f6 # v1
       -
         name: Login to Docker Hub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@dd4fa0671be5250ee6f50aedf4cb05514abda2c7 # v1
+        uses: docker/login-action@49ed152c8eca782a232dede0303416e8f356c37b # v1
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       -
         name: Build
-        uses: docker/build-push-action@ac9327eae2b366085ac7f6a2d02df8aa8ead720a # v2
+        uses: docker/build-push-action@e551b19e49efd4e98792db7592c17c09b89db8d8 # v2
         with:
           context: ./docker
           push: ${{ github.event_name != 'pull_request' }}

.github/workflows/container_release4.yml

@@ -0,0 +1,58 @@
+name: "docker: build release containers for all tags"
+
+on:
+  push:
+    tags:
+      - '*'
+  workflow_dispatch: []
+
+permissions:
+  contents: read
+
+jobs:
+  build-default-release-container:
+    runs-on: [ubuntu-latest]
+
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@629c2de402a417ea7690ca6ce3f33229e27606a5 # v2
+      -
+        name: Docker meta
+        id: docker_meta
+        uses: docker/metadata-action@69f6fc9d46f2f8bf0d5491e4aabe0bb8c6a4678a # v3
+        with:
+          images: |
+            chrislusf/seaweedfs
+          tags: |
+            type=ref,event=tag,suffix=_full
+          flavor: |
+            latest=false
+          labels: |
+            org.opencontainers.image.title=seaweedfs
+            org.opencontainers.image.description=SeaweedFS is a distributed storage system for blobs, objects, files, and data lake, to store and serve billions of files fast!
+            org.opencontainers.image.vendor=Chris Lu
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@8b122486cedac8393e77aa9734c3528886e4a1a8 # v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@dc7b9719a96d48369863986a06765841d7ea23f6 # v1
+      -
+        name: Login to Docker Hub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@49ed152c8eca782a232dede0303416e8f356c37b # v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      -
+        name: Build
+        uses: docker/build-push-action@e551b19e49efd4e98792db7592c17c09b89db8d8 # v2
+        with:
+          context: ./docker
+          push: ${{ github.event_name != 'pull_request' }}
+          file: ./docker/Dockerfile.go_build
+          build-args: TAGS=elastic,ydb,gocdk,hdfs
+          platforms: linux/amd64
+          tags: ${{ steps.docker_meta.outputs.tags }}
+          labels: ${{ steps.docker_meta.outputs.labels }}

.github/workflows/container_release5.yml

@@ -0,0 +1,58 @@
+name: "docker: build release containers for all tags and large volume"
+
+on:
+  push:
+    tags:
+      - '*'
+  workflow_dispatch: []
+
+permissions:
+  contents: read
+
+jobs:
+  build-default-release-container:
+    runs-on: [ubuntu-latest]
+
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@629c2de402a417ea7690ca6ce3f33229e27606a5 # v2
+      -
+        name: Docker meta
+        id: docker_meta
+        uses: docker/metadata-action@69f6fc9d46f2f8bf0d5491e4aabe0bb8c6a4678a # v3
+        with:
+          images: |
+            chrislusf/seaweedfs
+          tags: |
+            type=ref,event=tag,suffix=_large_disk_full
+          flavor: |
+            latest=false
+          labels: |
+            org.opencontainers.image.title=seaweedfs
+            org.opencontainers.image.description=SeaweedFS is a distributed storage system for blobs, objects, files, and data lake, to store and serve billions of files fast!
+            org.opencontainers.image.vendor=Chris Lu
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@8b122486cedac8393e77aa9734c3528886e4a1a8 # v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@dc7b9719a96d48369863986a06765841d7ea23f6 # v1
+      -
+        name: Login to Docker Hub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@49ed152c8eca782a232dede0303416e8f356c37b # v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      -
+        name: Build
+        uses: docker/build-push-action@e551b19e49efd4e98792db7592c17c09b89db8d8 # v2
+        with:
+          context: ./docker
+          push: ${{ github.event_name != 'pull_request' }}
+          file: ./docker/Dockerfile.go_build
+          build-args: TAGS=5BytesOffset,elastic,ydb,gocdk,hdfs
+          platforms: linux/amd64
+          tags: ${{ steps.docker_meta.outputs.tags }}
+          labels: ${{ steps.docker_meta.outputs.labels }}

.github/workflows/depsreview.yml

@@ -0,0 +1,14 @@
+name: 'Dependency Review'
+on: [pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  dependency-review:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout Repository'
+        uses: actions/checkout@dcd71f646680f2efd8db4afa5ad64fdcba30e748
+      - name: 'Dependency Review'
+        uses: actions/dependency-review-action@39e692fa323107ef86d8fdac0067ce647f239bd7

.github/workflows/go.yml

@@ -21,7 +21,7 @@ jobs:
     steps:
 
     - name: Set up Go 1.x
-      uses: actions/setup-go@f6164bd8c8acb4a71fb2791a8b6c4024ff038dab # v2
+      uses: actions/setup-go@fcdc43634adb5f7ae75a9d7a9b9361790f7293e2 # v2
       with:
         go-version: ^1.13
       id: go
@@ -32,13 +32,9 @@ jobs:
     - name: Get dependencies
       run: |
         cd weed; go get -v -t -d ./...
-        if [ -f Gopkg.toml ]; then
-            curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
-            dep ensure
-        fi
 
     - name: Build
-      run: cd weed; go build -v .
+      run: cd weed; go build -tags "elastic gocdk sqlite hdfs ydb" -v .
 
     - name: Test
-      run: cd weed; go test -v ./...
+      run: cd weed; go test -tags "elastic gocdk sqlite hdfs ydb" -v ./...

.gitignore

@@ -55,6 +55,8 @@ Temporary Items
 # Mongo Explorer plugin:
 # .idea/mongoSettings.xml
 
+## vscode
+.vscode
 ## File-based project format:
 *.ipr
 *.iws
@@ -75,6 +77,8 @@ com_crashlytics_export_strings.xml
 crashlytics.properties
 crashlytics-build.properties
 
+workspace/
+
 test_data
 build
 target

Makefile

@@ -0,0 +1,11 @@
+BINARY = weed
+
+SOURCE_DIR = .
+
+all: install
+
+install:
+	cd weed; go install
+
+full_install:
+	cd weed; go install -tags "elastic gocdk sqlite hdfs ydb"

README.md

@@ -31,17 +31,16 @@ Your support will be really appreciated by me and other supporters!
 </p>
 -->
 
-
 ### Gold Sponsors
 - [![nodion](https://www.nodion.com/img/logo.svg)](https://www.nodion.com)
 
 ---
 
-
 - [Download Binaries for different platforms](https://github.com/chrislusf/seaweedfs/releases/latest)
 - [SeaweedFS on Slack](https://join.slack.com/t/seaweedfs/shared_invite/enQtMzI4MTMwMjU2MzA3LTEyYzZmZWYzOGQ3MDJlZWMzYmI0OTE4OTJiZjJjODBmMzUxNmYwODg0YjY3MTNlMjBmZDQ1NzQ5NDJhZWI2ZmY)
 - [SeaweedFS on Twitter](https://twitter.com/SeaweedFS)
 - [SeaweedFS on Telegram](https://t.me/Seaweedfs) 
+- [SeaweedFS on Reddit](https://www.reddit.com/r/SeaweedFS/)
 - [SeaweedFS Mailing List](https://groups.google.com/d/forum/seaweedfs)
 - [Wiki Documentation](https://github.com/chrislusf/seaweedfs/wiki)
 - [SeaweedFS White Paper](https://github.com/chrislusf/seaweedfs/wiki/SeaweedFS_Architecture.pdf)
@@ -54,12 +53,13 @@ Table of Contents
 * [Quick Start](#quick-start)
     * [Quick Start for S3 API on Docker](#quick-start-for-s3-api-on-docker)
     * [Quick Start with Single Binary](#quick-start-with-single-binary)
+    * [Quick Start SeaweedFS S3 on AWS](#quick-start-seaweedfs-s3-on-aws)
 * [Introduction](#introduction)
 * [Features](#features)
     * [Additional Features](#additional-features)
     * [Filer Features](#filer-features)
 * [Example: Using Seaweed Object Store](#example-Using-Seaweed-Object-Store)
-* [Architecture](#architecture)
+* [Architecture](#Object-Store-Architecture)
 * [Compared to Other File Systems](#compared-to-other-file-systems)
     * [Compared to HDFS](#compared-to-hdfs)
     * [Compared to GlusterFS, Ceph](#compared-to-glusterfs-ceph)
@@ -82,6 +82,9 @@ Table of Contents
 
 Also, to increase capacity, just add more volume servers by running `weed volume -dir="/some/data/dir2" -mserver="<master_host>:9333" -port=8081` locally, or on a different machine, or on thousands of machines. That is it!
 
+## Quick Start SeaweedFS S3 on AWS ##
+* Setup fast production-ready [SeaweedFS S3 on AWS with cloudformation](https://aws.amazon.com/marketplace/pp/prodview-nzelz5gprlrjc)
+
 ## Introduction ##
 
 SeaweedFS is a simple and highly scalable distributed file system. There are two objectives:
@@ -105,7 +108,7 @@ Also, SeaweedFS implements erasure coding with ideas from
 
 On top of the object store, optional [Filer] can support directories and POSIX attributes. 
 Filer is a separate linearly-scalable stateless server with customizable metadata stores, 
-e.g., MySql, Postgres, Redis, Cassandra, HBase, Mongodb, Elastic Search, LevelDB, RocksDB, Sqlite, MemSql, TiDB, Etcd, CockroachDB, etc.
+e.g., MySql, Postgres, Redis, Cassandra, HBase, Mongodb, Elastic Search, LevelDB, RocksDB, Sqlite, MemSql, TiDB, Etcd, CockroachDB, YDB, etc.
 
 For any distributed key value stores, the large values can be offloaded to SeaweedFS. 
 With the fast access speed and linearly scalable capacity, 
@@ -122,7 +125,7 @@ Faster and Cheaper than direct cloud storage!
 ## Additional Features ##
 * Can choose no replication or different replication levels, rack and data center aware.
 * Automatic master servers failover - no single point of failure (SPOF).
-* Automatic Gzip compression depending on file mime type.
+* Automatic Gzip compression depending on file MIME type.
 * Automatic compaction to reclaim disk space after deletion or update.
 * [Automatic entry TTL expiration][VolumeServerTTL].
 * Any server with some disk spaces can add to the total storage space.
@@ -201,7 +204,7 @@ SeaweedFS uses HTTP REST operations to read, write, and delete. The responses ar
 
 ### Write File ###
 
-To upload a file: first, send a HTTP POST, PUT, or GET request to `/dir/assign` to get an `fid` and a volume server url:
+To upload a file: first, send a HTTP POST, PUT, or GET request to `/dir/assign` to get an `fid` and a volume server URL:
 
 ```
 > curl http://localhost:9333/dir/assign
@@ -250,7 +253,7 @@ First look up the volume server's URLs by the file's volumeId:
 
 Since (usually) there are not too many volume servers, and volumes don't move often, you can cache the results most of the time. Depending on the replication type, one volume can have multiple replica locations. Just randomly pick one location to read.
 
-Now you can take the public url, render the url or directly read from the volume server via url:
+Now you can take the public URL, render the URL or directly read from the volume server via URL:
 
 ```
  http://localhost:8080/3,01637037d6.jpg
@@ -351,9 +354,9 @@ On each write request, the master server also generates a file key, which is a g
 
 ### Write and Read files ###
 
-When a client sends a write request, the master server returns (volume id, file key, file cookie, volume node url) for the file. The client then contacts the volume node and POSTs the file content.
+When a client sends a write request, the master server returns (volume id, file key, file cookie, volume node URL) for the file. The client then contacts the volume node and POSTs the file content.
 
-When a client needs to read a file based on (volume id, file key, file cookie), it asks the master server by the volume id for the (volume node url, volume node public url), or retrieves this from a cache. Then the client can GET the content, or just render the URL on web pages and let browsers fetch the content.
+When a client needs to read a file based on (volume id, file key, file cookie), it asks the master server by the volume id for the (volume node URL, volume node public URL), or retrieves this from a cache. Then the client can GET the content, or just render the URL on web pages and let browsers fetch the content.
 
 Please see the example for details on the write-read process.
 
@@ -407,7 +410,7 @@ The architectures are mostly the same. SeaweedFS aims to store and read files fa
 
 * SeaweedFS optimizes for small files, ensuring O(1) disk seek operation, and can also handle large files.
 * SeaweedFS statically assigns a volume id for a file. Locating file content becomes just a lookup of the volume id, which can be easily cached.
-* SeaweedFS Filer metadata store can be any well-known and proven data stores, e.g., Redis, Cassandra, HBase, Mongodb, Elastic Search, MySql, Postgres, Sqlite, MemSql, TiDB, CockroachDB, Etcd etc, and is easy to customized.
+* SeaweedFS Filer metadata store can be any well-known and proven data store, e.g., Redis, Cassandra, HBase, Mongodb, Elastic Search, MySql, Postgres, Sqlite, MemSql, TiDB, CockroachDB, Etcd, YDB etc, and is easy to customize.
 * SeaweedFS Volume server also communicates directly with clients via HTTP, supporting range queries, direct uploads, etc.
 
 | System         | File Metadata                   | File Content Read| POSIX  | REST API | Optimized for large number of small files |
@@ -443,13 +446,13 @@ Ceph can be setup similar to SeaweedFS as a key->blob store. It is much more com
 
 SeaweedFS has a centralized master group to look up free volumes, while Ceph uses hashing and metadata servers to locate its objects. Having a centralized master makes it easy to code and manage.
 
-Same as SeaweedFS, Ceph is also based on the object store RADOS. Ceph is rather complicated with mixed reviews.
+Ceph, like SeaweedFS, is based on the object store RADOS. Ceph is rather complicated with mixed reviews.
 
-Ceph uses CRUSH hashing to automatically manage the data placement, which is efficient to locate the data. But the data has to be placed according to the CRUSH algorithm. Any wrong configuration would cause data loss. Topology changes, such as adding new servers to increase capacity, will cause data migration with high IO cost to fit the CRUSH algorithm. SeaweedFS places data by assigning them to any writable volumes. If writes to one volume failed, just pick another volume to write. Adding more volumes are also as simple as it can be.
+Ceph uses CRUSH hashing to automatically manage data placement, which is efficient to locate the data. But the data has to be placed according to the CRUSH algorithm. Any wrong configuration would cause data loss. Topology changes, such as adding new servers to increase capacity, will cause data migration with high IO cost to fit the CRUSH algorithm. SeaweedFS places data by assigning them to any writable volumes. If writes to one volume failed, just pick another volume to write. Adding more volumes is also as simple as it can be.
 
 SeaweedFS is optimized for small files. Small files are stored as one continuous block of content, with at most 8 unused bytes between files. Small file access is O(1) disk read.
 
-SeaweedFS Filer uses off-the-shelf stores, such as MySql, Postgres, Sqlite, Mongodb, Redis, Elastic Search, Cassandra, HBase, MemSql, TiDB, CockroachCB, Etcd, to manage file directories. These stores are proven, scalable, and easier to manage.
+SeaweedFS Filer uses off-the-shelf stores, such as MySql, Postgres, Sqlite, Mongodb, Redis, Elastic Search, Cassandra, HBase, MemSql, TiDB, CockroachCB, Etcd, YDB, to manage file directories. These stores are proven, scalable, and easier to manage.
 
 | SeaweedFS         | comparable to Ceph | advantage |
 | -------------  | ------------- | ---------------- |
@@ -494,7 +497,7 @@ Step 1: install go on your machine and setup the environment by following the in
 
 https://golang.org/doc/install
 
-make sure you set up your $GOPATH
+make sure to define your $GOPATH
 
 
 Step 2: checkout this repo:
@@ -531,7 +534,7 @@ Write 1 million 1KB file:
 ```
 Concurrency Level:      16
 Time taken for tests:   66.753 seconds
-Complete requests:      1048576
+Completed requests:      1048576
 Failed requests:        0
 Total transferred:      1106789009 bytes
 Requests per second:    15708.23 [#/sec]
@@ -557,7 +560,7 @@ Randomly read 1 million files:
 ```
 Concurrency Level:      16
 Time taken for tests:   22.301 seconds
-Complete requests:      1048576
+Completed requests:      1048576
 Failed requests:        0
 Total transferred:      1106812873 bytes
 Requests per second:    47019.38 [#/sec]

docker/Dockerfile.go_build

@@ -1,12 +1,13 @@
-FROM golang:1.17-alpine as builder
+FROM golang:1.18-alpine as builder
 RUN apk add git g++ fuse
 RUN mkdir -p /go/src/github.com/chrislusf/
 RUN git clone https://github.com/chrislusf/seaweedfs /go/src/github.com/chrislusf/seaweedfs
 ARG BRANCH=${BRANCH:-master}
+ARG TAGS
 RUN cd /go/src/github.com/chrislusf/seaweedfs && git checkout $BRANCH
 RUN cd /go/src/github.com/chrislusf/seaweedfs/weed \
   && export LDFLAGS="-X github.com/chrislusf/seaweedfs/weed/util.COMMIT=$(git rev-parse --short HEAD)" \
-  && CGO_ENABLED=0 go install -ldflags "-extldflags -static ${LDFLAGS}"
+  && CGO_ENABLED=0 go install -tags "$TAGS" -ldflags "-extldflags -static ${LDFLAGS}"
 
 FROM alpine AS final
 LABEL author="Chris Lu"

docker/Dockerfile.go_build_large

@@ -1,43 +0,0 @@
-FROM golang:1.17-alpine as builder
-RUN apk add git g++ fuse
-RUN mkdir -p /go/src/github.com/chrislusf/
-RUN git clone https://github.com/chrislusf/seaweedfs /go/src/github.com/chrislusf/seaweedfs
-ARG BRANCH=${BRANCH:-master}
-RUN cd /go/src/github.com/chrislusf/seaweedfs && git checkout $BRANCH
-RUN cd /go/src/github.com/chrislusf/seaweedfs/weed \
-  && export LDFLAGS="-X github.com/chrislusf/seaweedfs/weed/util.COMMIT=$(git rev-parse --short HEAD)" \
-  && CGO_ENABLED=0 go install -tags 5BytesOffset -ldflags "-extldflags -static ${LDFLAGS}"
-
-FROM alpine AS final
-LABEL author="Chris Lu"
-COPY --from=builder /go/bin/weed /usr/bin/
-RUN mkdir -p /etc/seaweedfs
-COPY --from=builder /go/src/github.com/chrislusf/seaweedfs/docker/filer.toml /etc/seaweedfs/filer.toml
-COPY --from=builder /go/src/github.com/chrislusf/seaweedfs/docker/entrypoint.sh /entrypoint.sh
-RUN apk add fuse # for weed mount
-
-# volume server gprc port
-EXPOSE 18080
-# volume server http port
-EXPOSE 8080
-# filer server gprc port
-EXPOSE 18888
-# filer server http port
-EXPOSE 8888
-# master server shared gprc port
-EXPOSE 19333
-# master server shared http port
-EXPOSE 9333
-# s3 server http port
-EXPOSE 8333
-# webdav server http port
-EXPOSE 7333
-
-RUN mkdir -p /data/filerldb2
-
-VOLUME /data
-WORKDIR /data
-
-RUN chmod +x /entrypoint.sh
-
-ENTRYPOINT ["/entrypoint.sh"]

docker/Dockerfile.rocksdb_large

@@ -1,9 +1,9 @@
-FROM golang:1.17-buster as builder
+FROM golang:1.18-buster as builder
 
 RUN apt-get update
 RUN apt-get install -y build-essential libsnappy-dev zlib1g-dev libbz2-dev libgflags-dev liblz4-dev libzstd-dev
 
-ENV ROCKSDB_VERSION v7.0.4
+ENV ROCKSDB_VERSION v7.2.2
 
 # build RocksDB
 RUN cd /tmp && \

docker/Makefile

@@ -7,14 +7,17 @@ gen: dev
 binary:
 	export SWCOMMIT=$(shell git rev-parse --short HEAD)
 	export SWLDFLAGS="-X github.com/chrislusf/seaweedfs/weed/util.COMMIT=$(SWCOMMIT)"
-	cd ../weed; CGO_ENABLED=0 GOOS=linux go build -ldflags "-extldflags -static $(SWLDFLAGS)"; mv weed ../docker/
+	cd ../weed; CGO_ENABLED=0 GOOS=linux go build -tags "$(tags)" -ldflags "-extldflags -static $(SWLDFLAGS)"; mv weed ../docker/
 
 build: binary
 	docker build --no-cache -t chrislusf/seaweedfs:local -f Dockerfile.local .
 	rm ./weed
 
-build_gorocksdb:
-	docker build --no-cache -t chrislusf/gorocksdb -f Dockerfile.go_rocksdb .
+go_build: # make go_build tags=elastic,ydb,gocdk,hdfs,5BytesOffset
+	docker build --build-arg TAGS=$(tags) --no-cache -t chrislusf/seaweedfs:go_build -f Dockerfile.go_build .
+
+go_build_large_disk:
+	docker build --build-arg TAGS=large_disk --no-cache -t chrislusf/seaweedfs:large_disk -f Dockerfile.go_build .
 
 build_rocksdb:
 	docker build --no-cache -t chrislusf/seaweedfs:rocksdb -f Dockerfile.rocksdb_large .
@@ -55,12 +58,26 @@ cluster: build
 2clusters: build
 	docker-compose -f compose/local-clusters-compose.yml -p seaweedfs up
 
+2mount: build
+	docker-compose -f compose/local-sync-mount-compose.yml -p seaweedfs up
+
+hashicorp_raft: build
+	docker-compose -f compose/local-hashicorp-raft-compose.yml -p seaweedfs up
+
 s3tests: build s3tests_build
 	docker-compose -f compose/local-s3tests-compose.yml -p seaweedfs up
 
 filer_etcd: build
 	docker stack deploy -c compose/swarm-etcd.yml fs
 
+test_etcd: build
+	docker-compose -f compose/test-etcd-filer.yml -p seaweedfs up
+
+test_ydb: tags = ydb
+test_ydb: build
+	export
+	docker-compose -f compose/test-ydb-filer.yml -p seaweedfs up
+
 clean:
 	rm ./weed
 
@@ -74,4 +91,4 @@ certstrap:
 	certstrap --depot-path compose/tls sign --CA "SeaweedFS CA" volume01.dev || true
 	certstrap --depot-path compose/tls sign --CA "SeaweedFS CA" master01.dev || true
 	certstrap --depot-path compose/tls sign --CA "SeaweedFS CA" filer01.dev || true
-	certstrap --depot-path compose/tls sign --CA "SeaweedFS CA" client01.dev || true
+	certstrap --depot-path compose/tls sign --CA "SeaweedFS CA" client01.dev || true

docker/compose/local-hashicorp-raft-compose.yml

@@ -0,0 +1,89 @@
+version: '2'
+
+services:
+  master0:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 9333:9333
+      - 19333:19333
+    command: "-v=4 master -volumeSizeLimitMB 100 -raftHashicorp -ip=master0 -port=9333 -peers=master1:9334,master2:9335 -mdir=/data"
+    volumes:
+      - ./master/0:/data
+    environment:
+      WEED_MASTER_VOLUME_GROWTH_COPY_1: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_2: 2
+      WEED_MASTER_VOLUME_GROWTH_COPY_OTHER: 1
+  master1:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 9334:9334
+      - 19334:19334
+    command: "-v=4 master -volumeSizeLimitMB 100 -raftHashicorp -ip=master1 -port=9334 -peers=master0:9333,master2:9335 -mdir=/data"
+    volumes:
+      - ./master/1:/data
+    environment:
+      WEED_MASTER_VOLUME_GROWTH_COPY_1: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_2: 2
+      WEED_MASTER_VOLUME_GROWTH_COPY_OTHER: 1
+  master2:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 9335:9335
+      - 19335:19335
+    command: "-v=4 master -volumeSizeLimitMB 100 -raftHashicorp -ip=master2 -port=9335 -peers=master0:9333,master1:9334 -mdir=/data"
+    volumes:
+      - ./master/2:/data
+    environment:
+      WEED_MASTER_VOLUME_GROWTH_COPY_1: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_2: 2
+      WEED_MASTER_VOLUME_GROWTH_COPY_OTHER: 1
+  volume1:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8080:8080
+      - 18080:18080
+    command: 'volume -dataCenter=dc1 -rack=v1 -mserver="master0:9333,master1:9334,master2:9335" -port=8080 -ip=volume1 -publicUrl=localhost:8080 -preStopSeconds=1'
+    depends_on:
+      - master0
+      - master1
+  volume2:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8082:8082
+      - 18082:18082
+    command: 'volume -dataCenter=dc2 -rack=v2 -mserver="master0:9333,master1:9334,master2:9335" -port=8082 -ip=volume2 -publicUrl=localhost:8082 -preStopSeconds=1'
+    depends_on:
+      - master0
+      - master1
+  volume3:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8083:8083
+      - 18083:18083
+    command: 'volume -dataCenter=dc3 -rack=v3 -mserver="master0:9333,master1:9334,master2:9335" -port=8083 -ip=volume3 -publicUrl=localhost:8083 -preStopSeconds=1'
+    depends_on:
+      - master0
+      - master1
+  filer:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8888:8888
+      - 18888:18888
+      - 8111:8111
+    command: 'filer -defaultReplicaPlacement=100 -iam -master="master0:9333,master1:9334,master2:9335"'
+    depends_on:
+      - master0
+      - master1
+      - volume1
+      - volume2
+  s3:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8333:8333
+    command: '-v=9 s3 -ip.bind="s3" -filer="filer:8888"'
+    depends_on:
+      - master0
+      - master1
+      - volume1
+      - volume2
+      - filer

docker/compose/local-sync-mount-compose.yml

@@ -0,0 +1,21 @@
+version: '3.9'
+services:
+  node1:
+    image: chrislusf/seaweedfs:local
+    command: "server -master -volume -filer"
+  mount1:
+    image: chrislusf/seaweedfs:local
+    privileged: true
+    command: "mount -filer=node1:8888 -dir=/mnt -dirAutoCreate"
+  node2:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 7888:8888
+    command: "server -master -volume -filer"
+  mount2:
+    image: chrislusf/seaweedfs:local
+    privileged: true
+    command: "mount -filer=node2:8888 -dir=/mnt -dirAutoCreate"
+  sync:
+    image: chrislusf/seaweedfs:local
+    command: "-v=4 filer.sync -a=node1:8888 -b=node2:8888 -a.debug -b.debug"

docker/compose/master-cloud.toml

@@ -28,3 +28,4 @@ sleep_minutes = 17          # sleep minutes between each script execution
 	region = "us-east-2"
 	bucket = "volume_bucket"    # an existing bucket
 	endpoint = "http://server2:8333"
+	storage_class = "STANDARD_IA"

docker/compose/test-etcd-filer.yml

@@ -0,0 +1,61 @@
+version: '2'
+
+services:
+  etcd:
+    image: quay.io/coreos/etcd:v3.5.4
+    command: "etcd --advertise-client-urls http://etcd:2379 --listen-client-urls http://0.0.0.0:2379"
+    ports:
+      - 2379:2379
+  master:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 9333:9333
+      - 19333:19333
+    command: "master -ip=master -volumeSizeLimitMB=1024"
+  volume:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8080:8080
+      - 18080:18080
+    command: "volume -mserver=master:9333 -port=8080 -ip=volume -max=0 -preStopSeconds=1"
+    depends_on:
+      - master
+  s3:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 8888:8888
+      - 18888:18888
+      - 8333:8333
+    command: '-v 9 filer -master="master:9333" -s3 -s3.config=/etc/seaweedfs/s3.json -s3.port=8333'
+    environment:
+      WEED_LEVELDB2_ENABLED: 'false'
+      WEED_ETCD_ENABLED: 'true'
+      WEED_ETCD_SERVERS: "http://etcd:2379"
+    volumes:
+      - ./s3.json:/etc/seaweedfs/s3.json
+    depends_on:
+      - etcd
+      - master
+      - volume
+  registry:
+    image: registry:2
+    environment:
+      REGISTRY_HTTP_ADDR: "0.0.0.0:5001" # seaweedfs s3
+      REGISTRY_LOG_LEVEL: "debug"
+      REGISTRY_STORAGE: "s3"
+      REGISTRY_STORAGE_S3_REGION: "us-east-1"
+      REGISTRY_STORAGE_S3_REGIONENDPOINT: "http://s3:8333"
+      REGISTRY_STORAGE_S3_BUCKET: "registry"
+      REGISTRY_STORAGE_S3_ACCESSKEY: "some_access_key1"
+      REGISTRY_STORAGE_S3_SECRETKEY: "some_secret_key1"
+      REGISTRY_STORAGE_S3_V4AUTH: "true"
+      REGISTRY_STORAGE_S3_SECURE: "false"
+      REGISTRY_STORAGE_S3_SKIPVERIFY: "true"
+      REGISTRY_STORAGE_S3_ROOTDIRECTORY: "/"
+      REGISTRY_STORAGE_DELETE_ENABLED: "true"
+      REGISTRY_STORAGE_REDIRECT_DISABLE: "true"
+      REGISTRY_VALIDATION_DISABLED: "true"
+    ports:
+      - 5001:5001
+    depends_on:
+      - s3

docker/compose/test-ydb-filer.yml

@@ -0,0 +1,35 @@
+version: '2'
+
+services:
+  ydb:
+    image: cr.yandex/yc/yandex-docker-local-ydb
+    ports:
+      - 2135:2135
+      - 8765:8765
+      - 2136:2136
+    environment:
+      - YDB_DEFAULT_LOG_LEVEL=DEBUG
+      - GRPC_TLS_PORT=2135
+      - GRPC_PORT=2136
+      - MON_PORT=8765
+  s3:
+    image: chrislusf/seaweedfs:local
+    ports:
+      - 9333:9333
+      - 19333:19333
+      - 8888:8888
+      - 8000:8000
+      - 18888:18888
+    command: "server -ip=s3 -filer -master.volumeSizeLimitMB=16 -volume.max=0 -volume -volume.preStopSeconds=1 -s3 -s3.config=/etc/seaweedfs/s3.json -s3.port=8000 -s3.allowEmptyFolder=false -s3.allowDeleteBucketNotEmpty=false"
+    volumes:
+      - ./s3.json:/etc/seaweedfs/s3.json
+    environment:
+      WEED_LEVELDB2_ENABLED: "false"
+      WEED_YDB_ENABLED: "true"
+      WEED_YDB_DSN: "grpc://ydb:2136/?database=local"
+      WEED_YDB_PREFIX: "seaweedfs"
+      YDB_ANONYMOUS_CREDENTIALS: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_1: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_OTHER: 1
+    depends_on:
+      - ydb

docker/seaweedfs-compose.yml

@@ -6,14 +6,14 @@ services:
     ports:
       - 9333:9333
       - 19333:19333
-    command: "master -ip=master"
+    command: "master -ip=master -ip.bind=0.0.0.0"
   volume:
     image: chrislusf/seaweedfs # use a remote image
     ports:
       - 8080:8080
       - 18080:18080
       - 9325:9325
-    command: 'volume -mserver="master:9333" -port=8080  -metricsPort=9325'
+    command: 'volume -mserver="master:9333" -ip.bind=0.0.0.0 -port=8080  -metricsPort=9325'
     depends_on:
       - master
   filer:
@@ -22,7 +22,7 @@ services:
       - 8888:8888
       - 18888:18888
       - 9326:9326
-    command: 'filer -master="master:9333"  -metricsPort=9326'
+    command: 'filer -master="master:9333" -ip.bind=0.0.0.0 -metricsPort=9326'
     tty: true
     stdin_open: true
     depends_on:
@@ -33,7 +33,7 @@ services:
     ports:
       - 8333:8333
       - 9327:9327
-    command: 's3 -filer="filer:8888" -metricsPort=9327'
+    command: 's3 -filer="filer:8888" -ip.bind=0.0.0.0 -metricsPort=9327'
     depends_on:
       - master
       - volume

go.mod

@@ -4,13 +4,13 @@ go 1.18
 
 require (
 	cloud.google.com/go v0.100.2 // indirect
-	cloud.google.com/go/pubsub v1.19.0
+	cloud.google.com/go/pubsub v1.21.1
 	cloud.google.com/go/storage v1.22.0
 	github.com/Azure/azure-pipeline-go v0.2.3
-	github.com/Azure/azure-storage-blob-go v0.14.0
+	github.com/Azure/azure-storage-blob-go v0.15.0
 	github.com/OneOfOne/xxhash v1.2.8
-	github.com/Shopify/sarama v1.32.0
-	github.com/aws/aws-sdk-go v1.43.35
+	github.com/Shopify/sarama v1.33.0
+	github.com/aws/aws-sdk-go v1.44.14
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/buraksezer/consistent v0.0.0-20191006190839-693edf70fd72
 	github.com/bwmarrin/snowflake v0.3.0
@@ -32,13 +32,13 @@ require (
 	github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 // indirect
 	github.com/facebookgo/stats v0.0.0-20151006221625-1b76add642e4
 	github.com/facebookgo/subset v0.0.0-20200203212716-c811ad88dec4 // indirect
-	github.com/fclairamb/ftpserverlib v0.17.0
+	github.com/fclairamb/ftpserverlib v0.18.0
 	github.com/fsnotify/fsnotify v1.5.1 // indirect
 	github.com/go-errors/errors v1.1.1 // indirect
 	github.com/go-redis/redis/v8 v8.11.5
 	github.com/go-redsync/redsync/v4 v4.5.0
 	github.com/go-sql-driver/mysql v1.6.0
-	github.com/go-stack/stack v1.8.0 // indirect
+	github.com/go-stack/stack v1.8.1 // indirect
 	github.com/go-zookeeper/zk v1.0.2 // indirect
 	github.com/gocql/gocql v0.0.0-20210707082121-9a3953d1826d
 	github.com/golang-jwt/jwt v3.2.2+incompatible
@@ -46,15 +46,15 @@ require (
 	github.com/golang/protobuf v1.5.2
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/google/btree v1.0.1
-	github.com/google/go-cmp v0.5.7 // indirect
+	github.com/google/go-cmp v0.5.8 // indirect
 	github.com/google/uuid v1.3.0
 	github.com/google/wire v0.5.0 // indirect
-	github.com/googleapis/gax-go/v2 v2.2.0 // indirect
+	github.com/googleapis/gax-go/v2 v2.3.0 // indirect
 	github.com/gorilla/mux v1.8.0
 	github.com/grpc-ecosystem/go-grpc-middleware v1.3.0
 	github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed // indirect
 	github.com/hashicorp/errwrap v1.0.0 // indirect
-	github.com/hashicorp/go-multierror v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/go-uuid v1.0.2 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/jcmturner/gofork v1.0.0 // indirect
@@ -68,8 +68,8 @@ require (
 	github.com/klauspost/reedsolomon v1.9.16
 	github.com/kurin/blazer v0.5.3
 	github.com/lib/pq v1.10.5
-	github.com/linxGnu/grocksdb v1.7.0
-	github.com/magiconair/properties v1.8.5 // indirect
+	github.com/linxGnu/grocksdb v1.7.1
+	github.com/magiconair/properties v1.8.6 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-ieproxy v0.0.3 // indirect
 	github.com/mattn/go-isatty v0.0.14 // indirect
@@ -85,7 +85,7 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/posener/complete v1.2.3
 	github.com/pquerna/cachecontrol v0.1.0
-	github.com/prometheus/client_golang v1.12.1
+	github.com/prometheus/client_golang v1.12.2
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common v0.32.1 // indirect
 	github.com/prometheus/procfs v0.7.3 // indirect
@@ -94,15 +94,15 @@ require (
 	github.com/seaweedfs/goexif v2.0.0+incompatible
 	github.com/sirupsen/logrus v1.8.1 // indirect
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
-	github.com/spf13/afero v1.7.0 // indirect
+	github.com/spf13/afero v1.8.2 // indirect
 	github.com/spf13/cast v1.4.1 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
-	github.com/spf13/viper v1.10.1
+	github.com/spf13/viper v1.11.0
 	github.com/streadway/amqp v1.0.0
 	github.com/stretchr/testify v1.7.1
 	github.com/stvp/tempredis v0.0.0-20181119212430-b82af8480203
 	github.com/syndtr/goleveldb v1.0.1-0.20190318030020-c3a204f8e965
-	github.com/tidwall/gjson v1.14.0
+	github.com/tidwall/gjson v1.14.1
 	github.com/tidwall/match v1.1.1
 	github.com/tidwall/pretty v1.2.0 // indirect
 	github.com/tsuna/gohbase v0.0.0-20201125011725-348991136365
@@ -112,49 +112,58 @@ require (
 	github.com/viant/ptrie v0.3.0
 	github.com/viant/toolbox v0.33.2 // indirect
 	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
-	github.com/xdg-go/scram v1.1.0 // indirect
-	github.com/xdg-go/stringprep v1.0.2 // indirect
+	github.com/xdg-go/scram v1.1.1 // indirect
+	github.com/xdg-go/stringprep v1.0.3 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d // indirect
-	go.etcd.io/etcd/client/v3 v3.5.2
-	go.mongodb.org/mongo-driver v1.9.0
+	go.etcd.io/etcd/client/v3 v3.5.4
+	go.mongodb.org/mongo-driver v1.9.1
 	go.opencensus.io v0.23.0 // indirect
 	gocloud.dev v0.25.0
 	gocloud.dev/pubsub/natspubsub v0.25.0
 	gocloud.dev/pubsub/rabbitpubsub v0.25.0
-	golang.org/x/crypto v0.0.0-20220331220935-ae2d96664a29 // indirect
+	golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4 // indirect
+	golang.org/x/exp v0.0.0-20220414153411-bcd21879b8fd
 	golang.org/x/image v0.0.0-20200119044424-58c23975cae1
-	golang.org/x/net v0.0.0-20220401154927-543a649e0bdd
-	golang.org/x/oauth2 v0.0.0-20220309155454-6242fa91716a // indirect
-	golang.org/x/sys v0.0.0-20220330033206-e17cdc41300f
+	golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4
+	golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5 // indirect
+	golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6
 	golang.org/x/text v0.3.7 // indirect
-	golang.org/x/tools v0.1.6-0.20210726203631-07bc1bf47fb2
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
-	google.golang.org/api v0.74.0
+	golang.org/x/tools v0.1.8-0.20211029000441-d6a9af8af023
+	golang.org/x/xerrors v0.0.0-20220411194840-2f41105eb62f // indirect
+	google.golang.org/api v0.79.0
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/genproto v0.0.0-20220405205423-9d709892a2bf // indirect
-	google.golang.org/grpc v1.45.0
+	google.golang.org/genproto v0.0.0-20220505152158-f39f71e6c8f3 // indirect
+	google.golang.org/grpc v1.46.0
 	google.golang.org/protobuf v1.28.0
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	modernc.org/b v1.0.0 // indirect
-	modernc.org/cc/v3 v3.35.24 // indirect
-	modernc.org/ccgo/v3 v3.15.18 // indirect
-	modernc.org/libc v1.14.12 // indirect
+	modernc.org/cc/v3 v3.36.0 // indirect
+	modernc.org/ccgo/v3 v3.16.6 // indirect
+	modernc.org/libc v1.16.7 // indirect
 	modernc.org/mathutil v1.4.1 // indirect
-	modernc.org/memory v1.0.7 // indirect
+	modernc.org/memory v1.1.1 // indirect
 	modernc.org/opt v0.1.1 // indirect
-	modernc.org/sqlite v1.16.0
-	modernc.org/strutil v1.1.1 // indirect
+	modernc.org/sqlite v1.17.2
+	modernc.org/strutil v1.1.1
 	modernc.org/token v1.0.0 // indirect
 )
 
 require (
+	github.com/Jille/raft-grpc-transport v1.2.0
+	github.com/arangodb/go-driver v1.3.1
 	github.com/fluent/fluent-logger-golang v1.9.0
 	github.com/hanwen/go-fuse/v2 v2.1.0
+	github.com/hashicorp/raft v1.3.9
+	github.com/hashicorp/raft-boltdb v0.0.0-20220329195025-15018e9b97e0
+	github.com/ydb-platform/ydb-go-sdk-auth-environ v0.1.2
+	github.com/ydb-platform/ydb-go-sdk/v3 v3.25.3
 )
 
 require (
-	cloud.google.com/go/compute v1.5.0 // indirect
+	cloud.google.com/go/compute v1.6.1 // indirect
 	cloud.google.com/go/iam v0.3.0 // indirect
+	github.com/arangodb/go-velocypack v0.0.0-20200318135517-5af53c29c67e // indirect
+	github.com/armon/go-metrics v0.3.10 // indirect
 	github.com/aws/aws-sdk-go-v2 v1.16.2 // indirect
 	github.com/aws/aws-sdk-go-v2/config v1.15.3 // indirect
 	github.com/aws/aws-sdk-go-v2/credentials v1.11.2 // indirect
@@ -168,35 +177,46 @@ require (
 	github.com/aws/aws-sdk-go-v2/service/sso v1.11.3 // indirect
 	github.com/aws/aws-sdk-go-v2/service/sts v1.16.3 // indirect
 	github.com/aws/smithy-go v1.11.2 // indirect
+	github.com/boltdb/bolt v1.3.1 // indirect
 	github.com/d4l3k/messagediff v1.2.1 // indirect
-	github.com/fclairamb/go-log v0.1.0 // indirect
+	github.com/fatih/color v1.13.0 // indirect
+	github.com/fclairamb/go-log v0.3.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/googleapis/go-type-adapters v1.0.0 // indirect
-	github.com/googleapis/google-cloud-go-testing v0.0.0-20200911160855-bcd43fbb19e8 // indirect
+	github.com/hashicorp/go-hclog v1.2.0 // indirect
+	github.com/hashicorp/go-immutable-radix v1.3.1 // indirect
+	github.com/hashicorp/go-msgpack v1.1.5 // indirect
+	github.com/hashicorp/golang-lru v0.5.4 // indirect
 	github.com/jcmturner/aescts/v2 v2.0.0 // indirect
 	github.com/jcmturner/dnsutils/v2 v2.0.0 // indirect
 	github.com/jcmturner/goidentity/v6 v6.0.1 // indirect
 	github.com/jcmturner/rpc/v2 v2.0.3 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/klauspost/cpuid/v2 v2.0.6 // indirect
+	github.com/mattn/go-colorable v0.1.12 // indirect
 	github.com/mattn/go-runewidth v0.0.7 // indirect
 	github.com/mattn/go-sqlite3 v2.0.1+incompatible // indirect
 	github.com/nats-io/nats.go v1.13.1-0.20220121202836-972a071d373d // indirect
 	github.com/nats-io/nkeys v0.3.0 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.0-beta.8 // indirect
 	github.com/philhofer/fwd v1.1.1 // indirect
 	github.com/rwcarlsen/goexif v0.0.0-20190401172101-9e8deecbddbd // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/subosito/gotenv v1.2.0 // indirect
 	github.com/tinylib/msgp v1.1.6 // indirect
-	go.etcd.io/etcd/api/v3 v3.5.2 // indirect
-	go.etcd.io/etcd/client/pkg/v3 v3.5.2 // indirect
+	github.com/yandex-cloud/go-genproto v0.0.0-20211115083454-9ca41db5ed9e // indirect
+	github.com/ydb-platform/ydb-go-genproto v0.0.0-20220203104745-929cf9c248bc // indirect
+	github.com/ydb-platform/ydb-go-yc v0.8.3 // indirect
+	github.com/ydb-platform/ydb-go-yc-metadata v0.5.2 // indirect
+	go.etcd.io/etcd/api/v3 v3.5.4 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.5.4 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.8.0 // indirect
 	go.uber.org/zap v1.21.0 // indirect
-	golang.org/x/mod v0.5.0 // indirect
+	golang.org/x/mod v0.6.0-dev.0.20211013180041-c96bc1413d57 // indirect
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
-	gopkg.in/ini.v1 v1.66.2 // indirect
+	gopkg.in/ini.v1 v1.66.4 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
 	lukechampine.com/uint128 v1.1.1 // indirect

k8s/helm_charts2/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v1
 description: SeaweedFS
 name: seaweedfs
-appVersion: "2.98"
-version: "2.98"
+appVersion: "3.06"
+version: "3.06"

k8s/helm_charts2/templates/filer-statefulset.yaml

@@ -154,13 +154,16 @@ spec:
               {{- end }}
               {{- end }}
               -master={{ range $index := until (.Values.master.replicas | int) }}${SEAWEEDFS_FULLNAME}-master-{{ $index }}.${SEAWEEDFS_FULLNAME}-master:{{ $.Values.master.port }}{{ if lt $index (sub ($.Values.master.replicas | int) 1) }},{{ end }}{{ end }}
-          {{- if or (.Values.global.enableSecurity) (.Values.filer.extraVolumeMounts) }}    
           volumeMounts:
             - name: seaweedfs-filer-log-volume
               mountPath: "/logs/"
             - mountPath: /etc/sw
               name: config-users
               readOnly: true
+            {{- if .Values.filer.enablePVC }}
+            - name: data-filer
+              mountPath: /data
+            {{- end }}
             {{- if .Values.global.enableSecurity }}
             - name: security-config
               readOnly: true
@@ -183,7 +186,6 @@ spec:
               mountPath: /usr/local/share/ca-certificates/client/
             {{- end }}
             {{ tpl .Values.filer.extraVolumeMounts . | nindent 12 | trim }}
-          {{- end }}
           ports:
             - containerPort: {{ .Values.filer.port }}
               name: swfs-filer
@@ -250,16 +252,18 @@ spec:
       nodeSelector:
         {{ tpl .Values.filer.nodeSelector . | indent 8 | trim }}
       {{- end }}
-{{/*  volumeClaimTemplates:*/}}
-{{/*    - metadata:*/}}
-{{/*        name: data-{{ .Release.Namespace }}*/}}
-{{/*      spec:*/}}
-{{/*        accessModes:*/}}
-{{/*          - ReadWriteOnce*/}}
-{{/*        resources:*/}}
-{{/*          requests:*/}}
-{{/*            storage: {{ .Values.filer.storage }}*/}}
-{{/*        {{- if .Values.filer.storageClass }}*/}}
-{{/*        storageClassName: {{ .Values.filer.storageClass }}*/}}
-{{/*      {{- end }}*/}}
+  {{- if .Values.filer.enablePVC }}
+  volumeClaimTemplates:
+  - metadata:
+      name: data-filer
+    spec:
+      accessModes:
+      - ReadWriteOnce
+      resources:
+        requests:
+          storage: {{ .Values.filer.storage }}
+      {{- if .Values.filer.storageClass }}
+      storageClassName: {{ .Values.filer.storageClass }}
+      {{- end }}
+  {{- end }}
 {{- end }}

k8s/helm_charts2/templates/s3-deployment.yaml

@@ -10,7 +10,6 @@ metadata:
     heritage: {{ .Release.Service }}
     release: {{ .Release.Name }}
 spec:
-  serviceName: {{ template "seaweedfs.name" . }}-s3
   replicas: {{ .Values.s3.replicas }}
   selector:
     matchLabels:

k8s/helm_charts2/values.yaml

@@ -275,6 +275,9 @@ filer:
   # Disable http request, only gRpc operations are allowed
   disableHttp: false
 
+  # enablePVC will create a pvc for filer for data persistence.
+  enablePVC: false
+
   # storage and storageClass are the settings for configuring stateful
   # storage for the master pods. storage should be set to the disk size of
   # the attached volume. storageClass is the class of storage which defaults
@@ -357,6 +360,7 @@ filer:
     WEED_MYSQL_CONNECTION_MAX_LIFETIME_SECONDS: "600"
     # enable usage of memsql as filer backend
     WEED_MYSQL_INTERPOLATEPARAMS: "true"
+    # if you want to use leveldb2, then should enable "enablePVC". or you may lose your data.
     WEED_LEVELDB2_ENABLED: "false"
     # with http DELETE, by default the filer would check whether a folder is empty.
     # recursive_delete will delete all sub folders and files, similar to "rm -Rf"

other/java/client/src/main/proto/filer.proto

@@ -319,6 +319,9 @@ message PingRequest {
     string target_type = 2;
 }
 message PingResponse {
+    int64 start_time_ns = 1;
+    int64 remote_time_ns = 2;
+    int64 stop_time_ns = 3;
 }
 
 message GetFilerConfigurationRequest {

other/java/hdfs-over-ftp/pom.xml

@@ -36,7 +36,7 @@
         <dependency>
             <groupId>org.apache.hadoop</groupId>
             <artifactId>hadoop-common</artifactId>
-            <version>3.2.2</version>
+            <version>3.2.3</version>
         </dependency>
         <dependency>
             <groupId>org.apache.hadoop</groupId>

other/java/hdfs3/pom.xml

@@ -6,7 +6,7 @@
 
     <properties>
         <seaweedfs.client.version>2.85</seaweedfs.client.version>
-        <hadoop.version>3.1.4</hadoop.version>
+        <hadoop.version>3.2.3</hadoop.version>
     </properties>
 
     <groupId>com.github.chrislusf</groupId>

test/s3/compatibility/run.sh

@@ -8,9 +8,9 @@ mkdir tmp
 docker stop s3test-instance || echo "already stopped"
 
 ulimit -n 10000
-../../../weed/weed server -filer -s3 -volume.max 0   -master.volumeSizeLimitMB 5 -dir "$(pwd)/tmp" 1>&2>weed.log &
+../../../weed/weed server -filer -s3 -volume.max 0 -master.volumeSizeLimitMB 5 -dir "$(pwd)/tmp" 1>&2>weed.log &
 
-until $(curl --output /dev/null --silent --head --fail http://127.0.0.1:9333); do
+until curl --output /dev/null --silent --head --fail http://127.0.0.1:9333; do
     printf '.'
     sleep 5
 done
@@ -18,7 +18,7 @@ sleep 3
 
 rm -Rf logs-full.txt logs-summary.txt
 # docker run --name s3test-instance --rm -e S3TEST_CONF=s3tests.conf -v `pwd`/s3tests.conf:/s3-tests/s3tests.conf -it s3tests    ./virtualenv/bin/nosetests s3tests_boto3/functional/test_s3.py:test_get_obj_tagging -v  -a 'resource=object,!bucket-policy,!versioning,!encryption'
-docker run --name s3test-instance --rm -e S3TEST_CONF=s3tests.conf -v `pwd`/s3tests.conf:/s3-tests/s3tests.conf -it s3tests    ./virtualenv/bin/nosetests s3tests_boto3/functional/test_s3.py -v  -a 'resource=object,!bucket-policy,!versioning,!encryption' | sed -n -e '/botocore.hooks/!p;//q' | tee logs-summary.txt
+docker run --name s3test-instance --rm -e S3TEST_CONF=s3tests.conf -v "$(pwd)"/s3tests.conf:/s3-tests/s3tests.conf -it s3tests    ./virtualenv/bin/nosetests s3tests_boto3/functional/test_s3.py -v  -a 'resource=object,!bucket-policy,!versioning,!encryption' | sed -n -e '/botocore.hooks/!p;//q' | tee logs-summary.txt
 
 docker stop s3test-instance || echo "already stopped"
 killall -9 weed

unmaintained/fix_dat/fix_dat.go

@@ -24,7 +24,7 @@ var (
 
 /*
 This is to resolve an one-time issue that caused inconsistency with .dat and .idx files.
-In this case, the .dat file contains all data, but some of deletion caused incorrect offset.
+In this case, the .dat file contains all data, but some deletion caused incorrect offset.
 The .idx has all correct offsets.
 
 1. fix the .dat file, a new .dat_fixed file will be generated.

weed/cluster/cluster.go

@@ -15,6 +15,15 @@ const (
 	BrokerType       = "broker"
 )
 
+type FilerGroup string
+type Filers struct {
+	filers  map[pb.ServerAddress]*ClusterNode
+	leaders *Leaders
+}
+type Leaders struct {
+	leaders [3]pb.ServerAddress
+}
+
 type ClusterNode struct {
 	Address   pb.ServerAddress
 	Version   string
@@ -22,42 +31,50 @@ type ClusterNode struct {
 	createdTs time.Time
 }
 
-type Leaders struct {
-	leaders [3]pb.ServerAddress
-}
-
 type Cluster struct {
-	filers       map[pb.ServerAddress]*ClusterNode
-	filersLock   sync.RWMutex
-	filerLeaders *Leaders
-	brokers      map[pb.ServerAddress]*ClusterNode
-	brokersLock  sync.RWMutex
+	filerGroup2filers map[FilerGroup]*Filers
+	filersLock        sync.RWMutex
+	brokers           map[pb.ServerAddress]*ClusterNode
+	brokersLock       sync.RWMutex
 }
 
 func NewCluster() *Cluster {
 	return &Cluster{
-		filers:       make(map[pb.ServerAddress]*ClusterNode),
-		filerLeaders: &Leaders{},
-		brokers:      make(map[pb.ServerAddress]*ClusterNode),
+		filerGroup2filers: make(map[FilerGroup]*Filers),
+		brokers:           make(map[pb.ServerAddress]*ClusterNode),
 	}
 }
 
-func (cluster *Cluster) AddClusterNode(nodeType string, address pb.ServerAddress, version string) []*master_pb.KeepConnectedResponse {
+func (cluster *Cluster) getFilers(filerGroup FilerGroup, createIfNotFound bool) *Filers {
+	cluster.filersLock.Lock()
+	defer cluster.filersLock.Unlock()
+	filers, found := cluster.filerGroup2filers[filerGroup]
+	if !found && createIfNotFound {
+		filers = &Filers{
+			filers:  make(map[pb.ServerAddress]*ClusterNode),
+			leaders: &Leaders{},
+		}
+		cluster.filerGroup2filers[filerGroup] = filers
+	}
+	return filers
+}
+
+func (cluster *Cluster) AddClusterNode(ns, nodeType string, address pb.ServerAddress, version string) []*master_pb.KeepConnectedResponse {
+	filerGroup := FilerGroup(ns)
 	switch nodeType {
 	case FilerType:
-		cluster.filersLock.Lock()
-		defer cluster.filersLock.Unlock()
-		if existingNode, found := cluster.filers[address]; found {
+		filers := cluster.getFilers(filerGroup, true)
+		if existingNode, found := filers.filers[address]; found {
 			existingNode.counter++
 			return nil
 		}
-		cluster.filers[address] = &ClusterNode{
+		filers.filers[address] = &ClusterNode{
 			Address:   address,
 			Version:   version,
 			counter:   1,
 			createdTs: time.Now(),
 		}
-		return cluster.ensureFilerLeaders(true, nodeType, address)
+		return cluster.ensureFilerLeaders(filers, true, filerGroup, nodeType, address)
 	case BrokerType:
 		cluster.brokersLock.Lock()
 		defer cluster.brokersLock.Unlock()
@@ -81,22 +98,34 @@ func (cluster *Cluster) AddClusterNode(nodeType string, address pb.ServerAddress
 			},
 		}
 	case MasterType:
+		return []*master_pb.KeepConnectedResponse{
+			{
+				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
+					NodeType: nodeType,
+					Address:  string(address),
+					IsAdd:    true,
+				},
+			},
+		}
 	}
 	return nil
 }
 
-func (cluster *Cluster) RemoveClusterNode(nodeType string, address pb.ServerAddress) []*master_pb.KeepConnectedResponse {
+func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, address pb.ServerAddress) []*master_pb.KeepConnectedResponse {
+	filerGroup := FilerGroup(ns)
 	switch nodeType {
 	case FilerType:
-		cluster.filersLock.Lock()
-		defer cluster.filersLock.Unlock()
-		if existingNode, found := cluster.filers[address]; !found {
+		filers := cluster.getFilers(filerGroup, false)
+		if filers == nil {
+			return nil
+		}
+		if existingNode, found := filers.filers[address]; !found {
 			return nil
 		} else {
 			existingNode.counter--
 			if existingNode.counter <= 0 {
-				delete(cluster.filers, address)
-				return cluster.ensureFilerLeaders(false, nodeType, address)
+				delete(filers.filers, address)
+				return cluster.ensureFilerLeaders(filers, false, filerGroup, nodeType, address)
 			}
 		}
 	case BrokerType:
@@ -120,16 +149,29 @@ func (cluster *Cluster) RemoveClusterNode(nodeType string, address pb.ServerAddr
 			}
 		}
 	case MasterType:
+		return []*master_pb.KeepConnectedResponse{
+			{
+				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
+					NodeType: nodeType,
+					Address:  string(address),
+					IsAdd:    false,
+				},
+			},
+		}
 	}
 	return nil
 }
 
-func (cluster *Cluster) ListClusterNode(nodeType string) (nodes []*ClusterNode) {
+func (cluster *Cluster) ListClusterNode(filerGroup FilerGroup, nodeType string) (nodes []*ClusterNode) {
 	switch nodeType {
 	case FilerType:
+		filers := cluster.getFilers(filerGroup, false)
+		if filers == nil {
+			return
+		}
 		cluster.filersLock.RLock()
 		defer cluster.filersLock.RUnlock()
-		for _, node := range cluster.filers {
+		for _, node := range filers.filers {
 			nodes = append(nodes, node)
 		}
 	case BrokerType:
@@ -143,41 +185,48 @@ func (cluster *Cluster) ListClusterNode(nodeType string) (nodes []*ClusterNode)
 	return
 }
 
-func (cluster *Cluster) IsOneLeader(address pb.ServerAddress) bool {
-	return cluster.filerLeaders.isOneLeader(address)
+func (cluster *Cluster) IsOneLeader(filerGroup FilerGroup, address pb.ServerAddress) bool {
+	filers := cluster.getFilers(filerGroup, false)
+	if filers == nil {
+		return false
+	}
+	return filers.leaders.isOneLeader(address)
 }
 
-func (cluster *Cluster) ensureFilerLeaders(isAdd bool, nodeType string, address pb.ServerAddress) (result []*master_pb.KeepConnectedResponse) {
+func (cluster *Cluster) ensureFilerLeaders(filers *Filers, isAdd bool, filerGroup FilerGroup, nodeType string, address pb.ServerAddress) (result []*master_pb.KeepConnectedResponse) {
 	if isAdd {
-		if cluster.filerLeaders.addLeaderIfVacant(address) {
+		if filers.leaders.addLeaderIfVacant(address) {
 			// has added the address as one leader
 			result = append(result, &master_pb.KeepConnectedResponse{
 				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
-					NodeType: nodeType,
-					Address:  string(address),
-					IsLeader: true,
-					IsAdd:    true,
+					FilerGroup: string(filerGroup),
+					NodeType:   nodeType,
+					Address:    string(address),
+					IsLeader:   true,
+					IsAdd:      true,
 				},
 			})
 		} else {
 			result = append(result, &master_pb.KeepConnectedResponse{
 				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
-					NodeType: nodeType,
-					Address:  string(address),
-					IsLeader: false,
-					IsAdd:    true,
+					FilerGroup: string(filerGroup),
+					NodeType:   nodeType,
+					Address:    string(address),
+					IsLeader:   false,
+					IsAdd:      true,
 				},
 			})
 		}
 	} else {
-		if cluster.filerLeaders.removeLeaderIfExists(address) {
+		if filers.leaders.removeLeaderIfExists(address) {
 
 			result = append(result, &master_pb.KeepConnectedResponse{
 				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
-					NodeType: nodeType,
-					Address:  string(address),
-					IsLeader: true,
-					IsAdd:    false,
+					FilerGroup: string(filerGroup),
+					NodeType:   nodeType,
+					Address:    string(address),
+					IsLeader:   true,
+					IsAdd:      false,
 				},
 			})
 
@@ -185,8 +234,8 @@ func (cluster *Cluster) ensureFilerLeaders(isAdd bool, nodeType string, address
 			var shortestDuration int64 = math.MaxInt64
 			now := time.Now()
 			var candidateAddress pb.ServerAddress
-			for _, node := range cluster.filers {
-				if cluster.filerLeaders.isOneLeader(node.Address) {
+			for _, node := range filers.filers {
+				if filers.leaders.isOneLeader(node.Address) {
 					continue
 				}
 				duration := now.Sub(node.createdTs).Nanoseconds()
@@ -196,7 +245,7 @@ func (cluster *Cluster) ensureFilerLeaders(isAdd bool, nodeType string, address
 				}
 			}
 			if candidateAddress != "" {
-				cluster.filerLeaders.addLeaderIfVacant(candidateAddress)
+				filers.leaders.addLeaderIfVacant(candidateAddress)
 				// added a new leader
 				result = append(result, &master_pb.KeepConnectedResponse{
 					ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
@@ -210,10 +259,11 @@ func (cluster *Cluster) ensureFilerLeaders(isAdd bool, nodeType string, address
 		} else {
 			result = append(result, &master_pb.KeepConnectedResponse{
 				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
-					NodeType: nodeType,
-					Address:  string(address),
-					IsLeader: false,
-					IsAdd:    false,
+					FilerGroup: string(filerGroup),
+					NodeType:   nodeType,
+					Address:    string(address),
+					IsLeader:   false,
+					IsAdd:      false,
 				},
 			})
 		}

weed/cluster/cluster_test.go

@@ -9,39 +9,39 @@ import (
 func TestClusterAddRemoveNodes(t *testing.T) {
 	c := NewCluster()
 
-	c.AddClusterNode("filer", pb.ServerAddress("111:1"), "23.45")
-	c.AddClusterNode("filer", pb.ServerAddress("111:2"), "23.45")
+	c.AddClusterNode("", "filer", pb.ServerAddress("111:1"), "23.45")
+	c.AddClusterNode("", "filer", pb.ServerAddress("111:2"), "23.45")
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:1"),
 		pb.ServerAddress("111:2"),
-	}, c.filerLeaders.GetLeaders())
+	}, c.getFilers("", false).leaders.GetLeaders())
 
-	c.AddClusterNode("filer", pb.ServerAddress("111:3"), "23.45")
-	c.AddClusterNode("filer", pb.ServerAddress("111:4"), "23.45")
+	c.AddClusterNode("", "filer", pb.ServerAddress("111:3"), "23.45")
+	c.AddClusterNode("", "filer", pb.ServerAddress("111:4"), "23.45")
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:1"),
 		pb.ServerAddress("111:2"),
 		pb.ServerAddress("111:3"),
-	}, c.filerLeaders.GetLeaders())
+	}, c.getFilers("", false).leaders.GetLeaders())
 
-	c.AddClusterNode("filer", pb.ServerAddress("111:5"), "23.45")
-	c.AddClusterNode("filer", pb.ServerAddress("111:6"), "23.45")
-	c.RemoveClusterNode("filer", pb.ServerAddress("111:4"))
+	c.AddClusterNode("", "filer", pb.ServerAddress("111:5"), "23.45")
+	c.AddClusterNode("", "filer", pb.ServerAddress("111:6"), "23.45")
+	c.RemoveClusterNode("", "filer", pb.ServerAddress("111:4"))
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:1"),
 		pb.ServerAddress("111:2"),
 		pb.ServerAddress("111:3"),
-	}, c.filerLeaders.GetLeaders())
+	}, c.getFilers("", false).leaders.GetLeaders())
 
 	// remove oldest
-	c.RemoveClusterNode("filer", pb.ServerAddress("111:1"))
+	c.RemoveClusterNode("", "filer", pb.ServerAddress("111:1"))
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:6"),
 		pb.ServerAddress("111:2"),
 		pb.ServerAddress("111:3"),
-	}, c.filerLeaders.GetLeaders())
+	}, c.getFilers("", false).leaders.GetLeaders())
 
 	// remove oldest
-	c.RemoveClusterNode("filer", pb.ServerAddress("111:1"))
+	c.RemoveClusterNode("", "filer", pb.ServerAddress("111:1"))
 
 }

weed/command/autocomplete.go

@@ -41,7 +41,7 @@ func AutocompleteMain(commands []*Command) bool {
 
 func installAutoCompletion() bool {
 	if runtime.GOOS == "windows" {
-		fmt.Println("windows is not supported")
+		fmt.Println("Windows is not supported")
 		return false
 	}
 
@@ -56,7 +56,7 @@ func installAutoCompletion() bool {
 
 func uninstallAutoCompletion() bool {
 	if runtime.GOOS == "windows" {
-		fmt.Println("windows is not supported")
+		fmt.Println("Windows is not supported")
 		return false
 	}
 
@@ -65,7 +65,7 @@ func uninstallAutoCompletion() bool {
 		fmt.Printf("uninstall failed! %s\n", err)
 		return false
 	}
-	fmt.Printf("autocompletion is disable. Please restart your shell.\n")
+	fmt.Printf("autocompletion is disabled. Please restart your shell.\n")
 	return true
 }
 

weed/command/backup.go

@@ -120,7 +120,7 @@ func runBackup(cmd *Command, args []string) bool {
 	}
 
 	if v.SuperBlock.CompactionRevision < uint16(stats.CompactRevision) {
-		if err = v.Compact2(30*1024*1024*1024, 0, nil); err != nil {
+		if err = v.Compact2(0, 0, nil); err != nil {
 			fmt.Printf("Compact Volume before synchronizing %v\n", err)
 			return true
 		}

weed/command/benchmark.go

@@ -74,14 +74,14 @@ func init() {
 
 var cmdBenchmark = &Command{
 	UsageLine: "benchmark -master=localhost:9333 -c=10 -n=100000",
-	Short:     "benchmark on writing millions of files and read out",
+	Short:     "benchmark by writing millions of files and reading them out",
 	Long: `benchmark on an empty SeaweedFS file system.
 
   Two tests during benchmark:
   1) write lots of small files to the system
   2) read the files out
 
-  The file content is mostly zero, but no compression is done.
+  The file content is mostly zeros, but no compression is done.
 
   You can choose to only benchmark read or write.
   During write, the list of uploaded file ids is stored in "-list" specified file.
@@ -129,7 +129,7 @@ func runBenchmark(cmd *Command, args []string) bool {
 		defer pprof.StopCPUProfile()
 	}
 
-	b.masterClient = wdclient.NewMasterClient(b.grpcDialOption, "client", "", "", pb.ServerAddresses(*b.masters).ToAddressMap())
+	b.masterClient = wdclient.NewMasterClient(b.grpcDialOption, "", "client", "", "", pb.ServerAddresses(*b.masters).ToAddressMap())
 	go b.masterClient.KeepConnectedToMaster()
 	b.masterClient.WaitUntilConnected()
 
@@ -468,7 +468,7 @@ func (s *stats) printStats() {
 	timeTaken := float64(int64(s.end.Sub(s.start))) / 1000000000
 	fmt.Printf("\nConcurrency Level:      %d\n", *b.concurrency)
 	fmt.Printf("Time taken for tests:   %.3f seconds\n", timeTaken)
-	fmt.Printf("Complete requests:      %d\n", completed)
+	fmt.Printf("Completed requests:      %d\n", completed)
 	fmt.Printf("Failed requests:        %d\n", failed)
 	fmt.Printf("Total transferred:      %d bytes\n", transferred)
 	fmt.Printf("Requests per second:    %.2f [#/sec]\n", float64(completed)/timeTaken)

weed/command/filer.go

@@ -5,6 +5,7 @@ import (
 	"net"
 	"net/http"
 	"os"
+	"runtime"
 	"time"
 
 	"google.golang.org/grpc/reflection"
@@ -36,6 +37,7 @@ type FilerOptions struct {
 	port                    *int
 	portGrpc                *int
 	publicPort              *int
+	filerGroup              *string
 	collection              *string
 	defaultReplicaPlacement *string
 	disableDirListing       *bool
@@ -58,6 +60,7 @@ type FilerOptions struct {
 func init() {
 	cmdFiler.Run = runFiler // break init cycle
 	f.mastersString = cmdFiler.Flag.String("master", "localhost:9333", "comma-separated master servers")
+	f.filerGroup = cmdFiler.Flag.String("filerGroup", "", "share metadata with other filers in the same filerGroup")
 	f.collection = cmdFiler.Flag.String("collection", "", "all data will be stored in this default collection")
 	f.ip = cmdFiler.Flag.String("ip", util.DetectedHostAddress(), "filer server http listen ip address")
 	f.bindIp = cmdFiler.Flag.String("ip.bind", "", "ip address to bind to. If empty, default to same as -ip option.")
@@ -83,6 +86,7 @@ func init() {
 	// start s3 on filer
 	filerStartS3 = cmdFiler.Flag.Bool("s3", false, "whether to start S3 gateway")
 	filerS3Options.port = cmdFiler.Flag.Int("s3.port", 8333, "s3 server http listen port")
+	filerS3Options.portGrpc = cmdFiler.Flag.Int("s3.port.grpc", 0, "s3 server grpc listen port")
 	filerS3Options.domainName = cmdFiler.Flag.String("s3.domainName", "", "suffix of the host name in comma separated list, {bucket}.{domainName}")
 	filerS3Options.tlsPrivateKey = cmdFiler.Flag.String("s3.key.file", "", "path to the TLS private key file")
 	filerS3Options.tlsCertificate = cmdFiler.Flag.String("s3.cert.file", "", "path to the TLS certificate file")
@@ -200,6 +204,7 @@ func (fo *FilerOptions) startFiler() {
 
 	fs, nfs_err := weed_server.NewFilerServer(defaultMux, publicVolumeMux, &weed_server.FilerOption{
 		Masters:               fo.masters,
+		FilerGroup:            *fo.filerGroup,
 		Collection:            *fo.collection,
 		DefaultReplication:    *fo.defaultReplicaPlacement,
 		DisableDirListing:     *fo.disableDirListing,
@@ -248,18 +253,6 @@ func (fo *FilerOptions) startFiler() {
 		glog.Fatalf("Filer listener error: %v", e)
 	}
 
-	// start on local unix socket
-	if *fo.localSocket == "" {
-		*fo.localSocket = fmt.Sprintf("/tmp/seaweefs-filer-%d.sock", *fo.port)
-		if err := os.Remove(*fo.localSocket); err != nil && !os.IsNotExist(err) {
-			glog.Fatalf("Failed to remove %s, error: %s", *fo.localSocket, err.Error())
-		}
-	}
-	filerSocketListener, err := net.Listen("unix", *fo.localSocket)
-	if err != nil {
-		glog.Fatalf("Failed to listen on %s: %v", *fo.localSocket, err)
-	}
-
 	// starting grpc server
 	grpcPort := *fo.portGrpc
 	grpcL, grpcLocalL, err := util.NewIpAndLocalListeners(*fo.bindIp, grpcPort, 0)
@@ -275,9 +268,22 @@ func (fo *FilerOptions) startFiler() {
 	go grpcS.Serve(grpcL)
 
 	httpS := &http.Server{Handler: defaultMux}
-	go func() {
-		httpS.Serve(filerSocketListener)
-	}()
+	if runtime.GOOS != "windows" {
+		if *fo.localSocket == "" {
+			*fo.localSocket = fmt.Sprintf("/tmp/seaweefs-filer-%d.sock", *fo.port)
+			if err := os.Remove(*fo.localSocket); err != nil && !os.IsNotExist(err) {
+				glog.Fatalf("Failed to remove %s, error: %s", *fo.localSocket, err.Error())
+			}
+		}
+		go func() {
+			// start on local unix socket
+			filerSocketListener, err := net.Listen("unix", *fo.localSocket)
+			if err != nil {
+				glog.Fatalf("Failed to listen on %s: %v", *fo.localSocket, err)
+			}
+			httpS.Serve(filerSocketListener)
+		}()
+	}
 	if filerLocalListener != nil {
 		go func() {
 			if err := httpS.Serve(filerLocalListener); err != nil {

weed/command/filer_copy.go

@@ -71,7 +71,7 @@ var cmdFilerCopy = &Command{
   It can copy one or a list of files or folders.
 
   If copying a whole folder recursively:
-  All files under the folder and subfolders will be copyed.
+  All files under the folder and sub folders will be copied.
   Optional parameter "-include" allows you to specify the file name patterns.
 
   If "maxMB" is set to a positive number, files larger than it would be split into chunks.

weed/command/filer_meta_tail.go

@@ -1,12 +1,9 @@
 package command
 
 import (
-	"context"
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/golang/protobuf/jsonpb"
-	jsoniter "github.com/json-iterator/go"
-	elastic "github.com/olivere/elastic/v7"
 	"os"
 	"path/filepath"
 	"strings"
@@ -124,72 +121,3 @@ func runFilerMetaTail(cmd *Command, args []string) bool {
 
 	return true
 }
-
-type EsDocument struct {
-	Dir         string `json:"dir,omitempty"`
-	Name        string `json:"name,omitempty"`
-	IsDirectory bool   `json:"isDir,omitempty"`
-	Size        uint64 `json:"size,omitempty"`
-	Uid         uint32 `json:"uid,omitempty"`
-	Gid         uint32 `json:"gid,omitempty"`
-	UserName    string `json:"userName,omitempty"`
-	Collection  string `json:"collection,omitempty"`
-	Crtime      int64  `json:"crtime,omitempty"`
-	Mtime       int64  `json:"mtime,omitempty"`
-	Mime        string `json:"mime,omitempty"`
-}
-
-func toEsEntry(event *filer_pb.EventNotification) (*EsDocument, string) {
-	entry := event.NewEntry
-	dir, name := event.NewParentPath, entry.Name
-	id := util.Md5String([]byte(util.NewFullPath(dir, name)))
-	esEntry := &EsDocument{
-		Dir:         dir,
-		Name:        name,
-		IsDirectory: entry.IsDirectory,
-		Size:        entry.Attributes.FileSize,
-		Uid:         entry.Attributes.Uid,
-		Gid:         entry.Attributes.Gid,
-		UserName:    entry.Attributes.UserName,
-		Collection:  entry.Attributes.Collection,
-		Crtime:      entry.Attributes.Crtime,
-		Mtime:       entry.Attributes.Mtime,
-		Mime:        entry.Attributes.Mime,
-	}
-	return esEntry, id
-}
-
-func sendToElasticSearchFunc(servers string, esIndex string) (func(resp *filer_pb.SubscribeMetadataResponse) error, error) {
-	options := []elastic.ClientOptionFunc{}
-	options = append(options, elastic.SetURL(strings.Split(servers, ",")...))
-	options = append(options, elastic.SetSniff(false))
-	options = append(options, elastic.SetHealthcheck(false))
-	client, err := elastic.NewClient(options...)
-	if err != nil {
-		return nil, err
-	}
-	return func(resp *filer_pb.SubscribeMetadataResponse) error {
-		event := resp.EventNotification
-		if event.OldEntry != nil &&
-			(event.NewEntry == nil || resp.Directory != event.NewParentPath || event.OldEntry.Name != event.NewEntry.Name) {
-			// delete or not update the same file
-			dir, name := resp.Directory, event.OldEntry.Name
-			id := util.Md5String([]byte(util.NewFullPath(dir, name)))
-			println("delete", id)
-			_, err := client.Delete().Index(esIndex).Id(id).Do(context.Background())
-			return err
-		}
-		if event.NewEntry != nil {
-			// add a new file or update the same file
-			esEntry, id := toEsEntry(event)
-			value, err := jsoniter.Marshal(esEntry)
-			if err != nil {
-				return err
-			}
-			println(string(value))
-			_, err = client.Index().Index(esIndex).Id(id).BodyJson(string(value)).Do(context.Background())
-			return err
-		}
-		return nil
-	}, nil
-}

weed/command/filer_meta_tail_elastic.go

@@ -0,0 +1,82 @@
+//go:build elastic
+// +build elastic
+
+package command
+
+import (
+	"context"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	jsoniter "github.com/json-iterator/go"
+	elastic "github.com/olivere/elastic/v7"
+	"strings"
+)
+
+type EsDocument struct {
+	Dir         string `json:"dir,omitempty"`
+	Name        string `json:"name,omitempty"`
+	IsDirectory bool   `json:"isDir,omitempty"`
+	Size        uint64 `json:"size,omitempty"`
+	Uid         uint32 `json:"uid,omitempty"`
+	Gid         uint32 `json:"gid,omitempty"`
+	UserName    string `json:"userName,omitempty"`
+	Collection  string `json:"collection,omitempty"`
+	Crtime      int64  `json:"crtime,omitempty"`
+	Mtime       int64  `json:"mtime,omitempty"`
+	Mime        string `json:"mime,omitempty"`
+}
+
+func toEsEntry(event *filer_pb.EventNotification) (*EsDocument, string) {
+	entry := event.NewEntry
+	dir, name := event.NewParentPath, entry.Name
+	id := util.Md5String([]byte(util.NewFullPath(dir, name)))
+	esEntry := &EsDocument{
+		Dir:         dir,
+		Name:        name,
+		IsDirectory: entry.IsDirectory,
+		Size:        entry.Attributes.FileSize,
+		Uid:         entry.Attributes.Uid,
+		Gid:         entry.Attributes.Gid,
+		UserName:    entry.Attributes.UserName,
+		Collection:  entry.Attributes.Collection,
+		Crtime:      entry.Attributes.Crtime,
+		Mtime:       entry.Attributes.Mtime,
+		Mime:        entry.Attributes.Mime,
+	}
+	return esEntry, id
+}
+
+func sendToElasticSearchFunc(servers string, esIndex string) (func(resp *filer_pb.SubscribeMetadataResponse) error, error) {
+	options := []elastic.ClientOptionFunc{}
+	options = append(options, elastic.SetURL(strings.Split(servers, ",")...))
+	options = append(options, elastic.SetSniff(false))
+	options = append(options, elastic.SetHealthcheck(false))
+	client, err := elastic.NewClient(options...)
+	if err != nil {
+		return nil, err
+	}
+	return func(resp *filer_pb.SubscribeMetadataResponse) error {
+		event := resp.EventNotification
+		if event.OldEntry != nil &&
+			(event.NewEntry == nil || resp.Directory != event.NewParentPath || event.OldEntry.Name != event.NewEntry.Name) {
+			// delete or not update the same file
+			dir, name := resp.Directory, event.OldEntry.Name
+			id := util.Md5String([]byte(util.NewFullPath(dir, name)))
+			println("delete", id)
+			_, err := client.Delete().Index(esIndex).Id(id).Do(context.Background())
+			return err
+		}
+		if event.NewEntry != nil {
+			// add a new file or update the same file
+			esEntry, id := toEsEntry(event)
+			value, err := jsoniter.Marshal(esEntry)
+			if err != nil {
+				return err
+			}
+			println(string(value))
+			_, err = client.Index().Index(esIndex).Id(id).BodyJson(string(value)).Do(context.Background())
+			return err
+		}
+		return nil
+	}, nil
+}

weed/command/filer_meta_tail_non_elastic.go

@@ -0,0 +1,14 @@
+//go:build !elastic
+// +build !elastic
+
+package command
+
+import (
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+)
+
+func sendToElasticSearchFunc(servers string, esIndex string) (func(resp *filer_pb.SubscribeMetadataResponse) error, error) {
+	return func(resp *filer_pb.SubscribeMetadataResponse) error {
+		return nil
+	}, nil
+}

weed/command/filer_sync.go

@@ -267,7 +267,10 @@ func genProcessFunction(sourcePath string, targetPath string, dataSink sink.Repl
 				return nil
 			}
 			key := buildKey(dataSink, message, targetPath, sourceOldKey, sourcePath)
-			return dataSink.DeleteEntry(key, message.OldEntry.IsDirectory, message.DeleteChunks, message.Signatures)
+			if !dataSink.IsIncremental() {
+				return dataSink.DeleteEntry(key, message.OldEntry.IsDirectory, message.DeleteChunks, message.Signatures)
+			}
+			return nil
 		}
 
 		// handle new entries

weed/command/imports.go

@@ -15,6 +15,7 @@ import (
 	_ "github.com/chrislusf/seaweedfs/weed/replication/sink/localsink"
 	_ "github.com/chrislusf/seaweedfs/weed/replication/sink/s3sink"
 
+	_ "github.com/chrislusf/seaweedfs/weed/filer/arangodb"
 	_ "github.com/chrislusf/seaweedfs/weed/filer/cassandra"
 	_ "github.com/chrislusf/seaweedfs/weed/filer/elastic/v7"
 	_ "github.com/chrislusf/seaweedfs/weed/filer/etcd"
@@ -31,4 +32,5 @@ import (
 	_ "github.com/chrislusf/seaweedfs/weed/filer/redis2"
 	_ "github.com/chrislusf/seaweedfs/weed/filer/redis3"
 	_ "github.com/chrislusf/seaweedfs/weed/filer/sqlite"
+	_ "github.com/chrislusf/seaweedfs/weed/filer/ydb"
 )

weed/command/master.go

@@ -1,9 +1,9 @@
 package command
 
 import (
+	"golang.org/x/exp/slices"
 	"net/http"
 	"os"
-	"sort"
 	"strings"
 	"time"
 
@@ -48,6 +48,8 @@ type MasterOptions struct {
 	metricsHttpPort    *int
 	heartbeatInterval  *time.Duration
 	electionTimeout    *time.Duration
+	raftHashicorp      *bool
+	raftBootstrap      *bool
 }
 
 func init() {
@@ -71,6 +73,8 @@ func init() {
 	m.raftResumeState = cmdMaster.Flag.Bool("resumeState", false, "resume previous state on start master server")
 	m.heartbeatInterval = cmdMaster.Flag.Duration("heartbeatInterval", 300*time.Millisecond, "heartbeat interval of master servers, and will be randomly multiplied by [1, 1.25)")
 	m.electionTimeout = cmdMaster.Flag.Duration("electionTimeout", 10*time.Second, "election timeout of master servers")
+	m.raftHashicorp = cmdMaster.Flag.Bool("raftHashicorp", false, "use hashicorp raft")
+	m.raftBootstrap = cmdMaster.Flag.Bool("raftBootstrap", false, "Whether to bootstrap the Raft cluster")
 }
 
 var cmdMaster = &Command{
@@ -156,13 +160,25 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 		RaftResumeState:   *masterOption.raftResumeState,
 		HeartbeatInterval: *masterOption.heartbeatInterval,
 		ElectionTimeout:   *masterOption.electionTimeout,
+		RaftBootstrap:     *m.raftBootstrap,
 	}
-	raftServer, err := weed_server.NewRaftServer(raftServerOption)
-	if raftServer == nil {
-		glog.Fatalf("please verify %s is writable, see https://github.com/chrislusf/seaweedfs/issues/717: %s", *masterOption.metaFolder, err)
+	var raftServer *weed_server.RaftServer
+	var err error
+	if *m.raftHashicorp {
+		if raftServer, err = weed_server.NewHashicorpRaftServer(raftServerOption); err != nil {
+			glog.Fatalf("NewHashicorpRaftServer: %s", err)
+		}
+	} else {
+		raftServer, err = weed_server.NewRaftServer(raftServerOption)
+		if raftServer == nil {
+			glog.Fatalf("please verify %s is writable, see https://github.com/chrislusf/seaweedfs/issues/717: %s", *masterOption.metaFolder, err)
+		}
 	}
 	ms.SetRaftServer(raftServer)
 	r.HandleFunc("/cluster/status", raftServer.StatusHandler).Methods("GET")
+	if *m.raftHashicorp {
+		r.HandleFunc("/raft/stats", raftServer.StatsRaftHandler).Methods("GET")
+	}
 	// starting grpc server
 	grpcPort := *masterOption.portGrpc
 	grpcL, grpcLocalL, err := util.NewIpAndLocalListeners(*masterOption.ipBind, grpcPort, 0)
@@ -171,7 +187,11 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 	}
 	grpcS := pb.NewGrpcServer(security.LoadServerTLS(util.GetViper(), "grpc.master"))
 	master_pb.RegisterSeaweedServer(grpcS, ms)
-	protobuf.RegisterRaftServer(grpcS, raftServer)
+	if *m.raftHashicorp {
+		raftServer.TransportManager.Register(grpcS)
+	} else {
+		protobuf.RegisterRaftServer(grpcS, raftServer)
+	}
 	reflection.Register(grpcS)
 	glog.V(0).Infof("Start Seaweed Master %s grpc server at %s:%d", util.Version(), *masterOption.ipBind, grpcPort)
 	if grpcLocalL != nil {
@@ -179,14 +199,17 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 	}
 	go grpcS.Serve(grpcL)
 
-	go func() {
-		time.Sleep(1500 * time.Millisecond)
-		if ms.Topo.RaftServer.Leader() == "" && ms.Topo.RaftServer.IsLogEmpty() && isTheFirstOne(myMasterAddress, peers) {
-			if ms.MasterClient.FindLeaderFromOtherPeers(myMasterAddress) == "" {
-				raftServer.DoJoinCommand()
+	timeSleep := 1500 * time.Millisecond
+	if !*m.raftHashicorp {
+		go func() {
+			time.Sleep(timeSleep)
+			if ms.Topo.RaftServer.Leader() == "" && ms.Topo.RaftServer.IsLogEmpty() && isTheFirstOne(myMasterAddress, peers) {
+				if ms.MasterClient.FindLeaderFromOtherPeers(myMasterAddress) == "" {
+					raftServer.DoJoinCommand()
+				}
 			}
-		}
-	}()
+		}()
+	}
 
 	go ms.MasterClient.KeepConnectedToMaster()
 
@@ -251,8 +274,8 @@ func checkPeers(masterIp string, masterPort int, masterGrpcPort int, peers strin
 }
 
 func isTheFirstOne(self pb.ServerAddress, peers []pb.ServerAddress) bool {
-	sort.Slice(peers, func(i, j int) bool {
-		return strings.Compare(string(peers[i]), string(peers[j])) < 0
+	slices.SortFunc(peers, func(a, b pb.ServerAddress) bool {
+		return strings.Compare(string(a), string(b)) < 0
 	})
 	if len(peers) <= 0 {
 		return true

weed/command/s3.go

@@ -4,11 +4,13 @@ import (
 	"context"
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/s3api/s3err"
+	"google.golang.org/grpc/reflection"
 	"net/http"
 	"time"
 
 	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/s3_pb"
 	"github.com/chrislusf/seaweedfs/weed/security"
 
 	"github.com/gorilla/mux"
@@ -27,6 +29,7 @@ type S3Options struct {
 	filer                     *string
 	bindIp                    *string
 	port                      *int
+	portGrpc                  *int
 	config                    *string
 	domainName                *string
 	tlsPrivateKey             *string
@@ -43,6 +46,7 @@ func init() {
 	s3StandaloneOptions.filer = cmdS3.Flag.String("filer", "localhost:8888", "filer server address")
 	s3StandaloneOptions.bindIp = cmdS3.Flag.String("ip.bind", "", "ip address to bind to. Default to localhost.")
 	s3StandaloneOptions.port = cmdS3.Flag.Int("port", 8333, "s3 server http listen port")
+	s3StandaloneOptions.portGrpc = cmdS3.Flag.Int("port.grpc", 0, "s3 server grpc listen port")
 	s3StandaloneOptions.domainName = cmdS3.Flag.String("domainName", "", "suffix of the host name in comma separated list, {bucket}.{domainName}")
 	s3StandaloneOptions.config = cmdS3.Flag.String("config", "", "path to the config file")
 	s3StandaloneOptions.auditLogConfig = cmdS3.Flag.String("auditLogConfig", "", "path to the audit log config file")
@@ -179,7 +183,7 @@ func (s3opt *S3Options) startS3Server() bool {
 
 	router := mux.NewRouter().SkipClean(true)
 
-	_, s3ApiServer_err := s3api.NewS3ApiServer(router, &s3api.S3ApiServerOption{
+	s3ApiServer, s3ApiServer_err := s3api.NewS3ApiServer(router, &s3api.S3ApiServerOption{
 		Filer:                     filerAddress,
 		Port:                      *s3opt.port,
 		Config:                    *s3opt.config,
@@ -196,6 +200,9 @@ func (s3opt *S3Options) startS3Server() bool {
 
 	httpS := &http.Server{Handler: router}
 
+	if *s3opt.portGrpc == 0 {
+		*s3opt.portGrpc = 10000 + *s3opt.port
+	}
 	if *s3opt.bindIp == "" {
 		*s3opt.bindIp = "localhost"
 	}
@@ -213,6 +220,20 @@ func (s3opt *S3Options) startS3Server() bool {
 		}
 	}
 
+	// starting grpc server
+	grpcPort := *s3opt.portGrpc
+	grpcL, grpcLocalL, err := util.NewIpAndLocalListeners(*s3opt.bindIp, grpcPort, 0)
+	if err != nil {
+		glog.Fatalf("s3 failed to listen on grpc port %d: %v", grpcPort, err)
+	}
+	grpcS := pb.NewGrpcServer(security.LoadServerTLS(util.GetViper(), "grpc.s3"))
+	s3_pb.RegisterSeaweedS3Server(grpcS, s3ApiServer)
+	reflection.Register(grpcS)
+	if grpcLocalL != nil {
+		go grpcS.Serve(grpcLocalL)
+	}
+	go grpcS.Serve(grpcL)
+
 	if *s3opt.tlsPrivateKey != "" {
 		glog.V(0).Infof("Start Seaweed S3 API Server %s at https port %d", util.Version(), *s3opt.port)
 		if s3ApiLocalListner != nil {

weed/command/scaffold/filer.toml

@@ -285,6 +285,29 @@ healthcheck_enabled = false
 index.max_result_window = 10000
 
 
+[arangodb] # in development dont use it
+enabled = false
+db_name = "seaweedfs"
+servers=["http://localhost:8529"] # list of servers to connect to
+# only basic auth supported for now
+username=""
+password=""
+# skip tls cert validation
+insecure_skip_verify = true
+
+[ydb] # https://ydb.tech/
+enabled = false
+dsn = "grpc://localhost:2136?database=/local"
+prefix = "seaweedfs"
+useBucketPrefix = true # Fast Bucket Deletion
+poolSizeLimit = 50
+dialTimeOut = 10
+
+# Authenticate produced with one of next environment variables:
+# YDB_SERVICE_ACCOUNT_KEY_FILE_CREDENTIALS=<path/to/sa_key_file> — used service account key file by path
+# YDB_ANONYMOUS_CREDENTIALS="1" — used for authenticate with anonymous access. Anonymous access needs for connect to testing YDB installation
+# YDB_METADATA_CREDENTIALS="1" — used metadata service for authenticate to YDB from yandex cloud virtual machine or from yandex function
+# YDB_ACCESS_TOKEN_CREDENTIALS=<access_token> — used for authenticate to YDB with short-life access token. For example, access token may be IAM token
 
 ##########################
 ##########################

weed/command/scaffold/master.toml

@@ -36,6 +36,7 @@ aws_secret_access_key = ""     # if empty, loads from the shared credentials fil
 region = "us-east-2"
 bucket = "your_bucket_name"    # an existing bucket
 endpoint = ""
+storage_class = "STANDARD_IA"
 
 # create this number of logical volumes if no more writable volumes
 # count_x means how many copies of data.

weed/command/scaffold/security.toml

@@ -67,6 +67,11 @@ cert = ""
 key = ""
 allowed_commonNames = ""    # comma-separated SSL certificate common names
 
+[grpc.s3]
+cert = ""
+key = ""
+allowed_commonNames = ""    # comma-separated SSL certificate common names
+
 [grpc.msg_broker]
 cert = ""
 key = ""

weed/command/server.go

@@ -101,6 +101,7 @@ func init() {
 	masterOptions.heartbeatInterval = cmdServer.Flag.Duration("master.heartbeatInterval", 300*time.Millisecond, "heartbeat interval of master servers, and will be randomly multiplied by [1, 1.25)")
 	masterOptions.electionTimeout = cmdServer.Flag.Duration("master.electionTimeout", 10*time.Second, "election timeout of master servers")
 
+	filerOptions.filerGroup = cmdServer.Flag.String("filer.filerGroup", "", "share metadata with other filers in the same filerGroup")
 	filerOptions.collection = cmdServer.Flag.String("filer.collection", "", "all data will be stored in this collection")
 	filerOptions.port = cmdServer.Flag.Int("filer.port", 8888, "filer server http listen port")
 	filerOptions.portGrpc = cmdServer.Flag.Int("filer.port.grpc", 0, "filer server grpc listen port")
@@ -132,6 +133,7 @@ func init() {
 	serverOptions.v.enableTcp = cmdServer.Flag.Bool("volume.tcp", false, "<exprimental> enable tcp port")
 
 	s3Options.port = cmdServer.Flag.Int("s3.port", 8333, "s3 server http listen port")
+	s3Options.portGrpc = cmdServer.Flag.Int("s3.port.grpc", 0, "s3 server grpc listen port")
 	s3Options.domainName = cmdServer.Flag.String("s3.domainName", "", "suffix of the host name in comma separated list, {bucket}.{domainName}")
 	s3Options.tlsPrivateKey = cmdServer.Flag.String("s3.key.file", "", "path to the TLS private key file")
 	s3Options.tlsCertificate = cmdServer.Flag.String("s3.cert.file", "", "path to the TLS certificate file")

weed/command/shell.go

@@ -18,6 +18,7 @@ var (
 func init() {
 	cmdShell.Run = runShell // break init cycle
 	shellOptions.Masters = cmdShell.Flag.String("master", "", "comma-separated master servers, e.g. localhost:9333")
+	shellOptions.FilerGroup = cmdShell.Flag.String("filerGroup", "", "filerGroup for the filers")
 	shellInitialFiler = cmdShell.Flag.String("filer", "", "filer host and port, e.g. localhost:8888")
 	shellCluster = cmdShell.Flag.String("cluster", "", "cluster defined in shell.toml")
 }

weed/command/volume.go

@@ -267,7 +267,7 @@ func (v VolumeServerOptions) startVolumeServer(volumeFolders, maxVolumeCounts, v
 
 	stopChan := make(chan bool)
 	grace.OnInterrupt(func() {
-		fmt.Println("volume server has be killed")
+		fmt.Println("volume server has been killed")
 
 		// Stop heartbeats
 		if !volumeServer.StopHeartbeat() {

weed/filer/abstract_sql/abstract_sql_store.go

@@ -156,7 +156,7 @@ func (store *AbstractSqlStore) InsertEntry(ctx context.Context, entry *filer.Ent
 		return fmt.Errorf("encode %s: %s", entry.FullPath, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		meta = util.MaybeGzipData(meta)
 	}
 

weed/filer/abstract_sql/abstract_sql_store_kv.go

@@ -18,7 +18,7 @@ func (store *AbstractSqlStore) KvPut(ctx context.Context, key []byte, value []by
 		return fmt.Errorf("findDB: %v", err)
 	}
 
-	dirStr, dirHash, name := genDirAndName(key)
+	dirStr, dirHash, name := GenDirAndName(key)
 
 	res, err := db.ExecContext(ctx, store.GetSqlInsert(DEFAULT_TABLE), dirHash, name, dirStr, value)
 	if err == nil {
@@ -53,7 +53,7 @@ func (store *AbstractSqlStore) KvGet(ctx context.Context, key []byte) (value []b
 		return nil, fmt.Errorf("findDB: %v", err)
 	}
 
-	dirStr, dirHash, name := genDirAndName(key)
+	dirStr, dirHash, name := GenDirAndName(key)
 	row := db.QueryRowContext(ctx, store.GetSqlFind(DEFAULT_TABLE), dirHash, name, dirStr)
 
 	err = row.Scan(&value)
@@ -76,7 +76,7 @@ func (store *AbstractSqlStore) KvDelete(ctx context.Context, key []byte) (err er
 		return fmt.Errorf("findDB: %v", err)
 	}
 
-	dirStr, dirHash, name := genDirAndName(key)
+	dirStr, dirHash, name := GenDirAndName(key)
 
 	res, err := db.ExecContext(ctx, store.GetSqlDelete(DEFAULT_TABLE), dirHash, name, dirStr)
 	if err != nil {
@@ -92,7 +92,7 @@ func (store *AbstractSqlStore) KvDelete(ctx context.Context, key []byte) (err er
 
 }
 
-func genDirAndName(key []byte) (dirStr string, dirHash int64, name string) {
+func GenDirAndName(key []byte) (dirStr string, dirHash int64, name string) {
 	for len(key) < 8 {
 		key = append(key, 0)
 	}

weed/filer/arangodb/arangodb_store.go

@@ -0,0 +1,347 @@
+package arangodb
+
+import (
+	"context"
+	"crypto/tls"
+	"fmt"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/arangodb/go-driver"
+	"github.com/arangodb/go-driver/http"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/util"
+)
+
+func init() {
+	filer.Stores = append(filer.Stores, &ArangodbStore{})
+}
+
+var (
+	BUCKET_PREFIX      = "/buckets"
+	DEFAULT_COLLECTION = "seaweed_no_bucket"
+	KVMETA_COLLECTION  = "seaweed_kvmeta"
+)
+
+type ArangodbStore struct {
+	connect      driver.Connection
+	client       driver.Client
+	database     driver.Database
+	kvCollection driver.Collection
+
+	buckets map[string]driver.Collection
+	mu      sync.RWMutex
+
+	databaseName string
+}
+
+type Model struct {
+	Key       string `json:"_key"`
+	Directory string `json:"directory,omitempty"`
+	Name      string `json:"name,omitempty"`
+	Ttl       string `json:"ttl,omitempty"`
+
+	//arangodb does not support binary blobs
+	//we encode byte slice into uint64 slice
+	//see helpers.go
+	Meta []uint64 `json:"meta"`
+}
+
+func (store *ArangodbStore) GetName() string {
+	return "arangodb"
+}
+
+func (store *ArangodbStore) Initialize(configuration util.Configuration, prefix string) (err error) {
+	store.buckets = make(map[string]driver.Collection, 3)
+	store.databaseName = configuration.GetString(prefix + "db_name")
+	return store.connection(configuration.GetStringSlice(prefix+"servers"),
+		configuration.GetString(prefix+"username"),
+		configuration.GetString(prefix+"password"),
+		configuration.GetBool(prefix+"insecure_skip_verify"),
+	)
+}
+
+func (store *ArangodbStore) connection(uris []string, user string, pass string, insecure bool) (err error) {
+	ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
+
+	store.connect, err = http.NewConnection(http.ConnectionConfig{
+		Endpoints: uris,
+		TLSConfig: &tls.Config{
+			InsecureSkipVerify: insecure,
+		},
+	})
+	if err != nil {
+		return err
+	}
+	store.client, err = driver.NewClient(driver.ClientConfig{
+		Connection:     store.connect,
+		Authentication: driver.BasicAuthentication(user, pass),
+	})
+	if err != nil {
+		return err
+	}
+	ok, err := store.client.DatabaseExists(ctx, store.databaseName)
+	if err != nil {
+		return err
+	}
+	if ok {
+		store.database, err = store.client.Database(ctx, store.databaseName)
+	} else {
+		store.database, err = store.client.CreateDatabase(ctx, store.databaseName, &driver.CreateDatabaseOptions{})
+	}
+	if err != nil {
+		return err
+	}
+	if store.kvCollection, err = store.ensureCollection(ctx, KVMETA_COLLECTION); err != nil {
+		return err
+	}
+	return err
+}
+
+type key int
+
+const (
+	transactionKey key = 0
+)
+
+func (store *ArangodbStore) BeginTransaction(ctx context.Context) (context.Context, error) {
+	keys := make([]string, 0, len(store.buckets)+1)
+	for k := range store.buckets {
+		keys = append(keys, k)
+	}
+	keys = append(keys, store.kvCollection.Name())
+	txn, err := store.database.BeginTransaction(ctx, driver.TransactionCollections{
+		Exclusive: keys,
+	}, &driver.BeginTransactionOptions{})
+	if err != nil {
+		return nil, err
+	}
+
+	return context.WithValue(ctx, transactionKey, txn), nil
+}
+
+func (store *ArangodbStore) CommitTransaction(ctx context.Context) error {
+	val := ctx.Value(transactionKey)
+	cast, ok := val.(driver.TransactionID)
+	if !ok {
+		return fmt.Errorf("txn cast fail %s:", val)
+	}
+	err := store.database.CommitTransaction(ctx, cast, &driver.CommitTransactionOptions{})
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (store *ArangodbStore) RollbackTransaction(ctx context.Context) error {
+	val := ctx.Value(transactionKey)
+	cast, ok := val.(driver.TransactionID)
+	if !ok {
+		return fmt.Errorf("txn cast fail %s:", val)
+	}
+	err := store.database.AbortTransaction(ctx, cast, &driver.AbortTransactionOptions{})
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (store *ArangodbStore) InsertEntry(ctx context.Context, entry *filer.Entry) (err error) {
+	dir, name := entry.FullPath.DirAndName()
+	meta, err := entry.EncodeAttributesAndChunks()
+	if err != nil {
+		return fmt.Errorf("encode %s: %s", entry.FullPath, err)
+	}
+
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
+		meta = util.MaybeGzipData(meta)
+	}
+	model := &Model{
+		Key:       hashString(string(entry.FullPath)),
+		Directory: dir,
+		Name:      name,
+		Meta:      bytesToArray(meta),
+	}
+	if entry.TtlSec > 0 {
+		model.Ttl = time.Now().Add(time.Second * time.Duration(entry.TtlSec)).Format(time.RFC3339)
+	} else {
+		model.Ttl = ""
+	}
+
+	targetCollection, err := store.extractBucketCollection(ctx, entry.FullPath)
+	if err != nil {
+		return err
+	}
+	_, err = targetCollection.CreateDocument(ctx, model)
+	if driver.IsConflict(err) {
+		return store.UpdateEntry(ctx, entry)
+	}
+
+	if err != nil {
+		return fmt.Errorf("InsertEntry %s: %v", entry.FullPath, err)
+	}
+
+	return nil
+
+}
+
+func (store *ArangodbStore) UpdateEntry(ctx context.Context, entry *filer.Entry) (err error) {
+	dir, name := entry.FullPath.DirAndName()
+	meta, err := entry.EncodeAttributesAndChunks()
+	if err != nil {
+		return fmt.Errorf("encode %s: %s", entry.FullPath, err)
+	}
+
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
+		meta = util.MaybeGzipData(meta)
+	}
+	model := &Model{
+		Key:       hashString(string(entry.FullPath)),
+		Directory: dir,
+		Name:      name,
+		Meta:      bytesToArray(meta),
+	}
+	if entry.TtlSec > 0 {
+		model.Ttl = time.Now().Add(time.Duration(entry.TtlSec) * time.Second).Format(time.RFC3339)
+	} else {
+		model.Ttl = "none"
+	}
+	targetCollection, err := store.extractBucketCollection(ctx, entry.FullPath)
+	if err != nil {
+		return err
+	}
+	_, err = targetCollection.UpdateDocument(ctx, model.Key, model)
+	if err != nil {
+		return fmt.Errorf("UpdateEntry %s: %v", entry.FullPath, err)
+	}
+
+	return nil
+}
+
+func (store *ArangodbStore) FindEntry(ctx context.Context, fullpath util.FullPath) (entry *filer.Entry, err error) {
+	var data Model
+	targetCollection, err := store.extractBucketCollection(ctx, fullpath)
+	if err != nil {
+		return nil, err
+	}
+	_, err = targetCollection.ReadDocument(ctx, hashString(string(fullpath)), &data)
+	if err != nil {
+		if driver.IsNotFound(err) {
+			return nil, filer_pb.ErrNotFound
+		}
+		glog.Errorf("find %s: %v", fullpath, err)
+		return nil, filer_pb.ErrNotFound
+	}
+	if len(data.Meta) == 0 {
+		return nil, filer_pb.ErrNotFound
+	}
+	entry = &filer.Entry{
+		FullPath: fullpath,
+	}
+	err = entry.DecodeAttributesAndChunks(util.MaybeDecompressData(arrayToBytes(data.Meta)))
+	if err != nil {
+		return entry, fmt.Errorf("decode %s : %v", entry.FullPath, err)
+	}
+
+	return entry, nil
+}
+
+func (store *ArangodbStore) DeleteEntry(ctx context.Context, fullpath util.FullPath) (err error) {
+	targetCollection, err := store.extractBucketCollection(ctx, fullpath)
+	if err != nil {
+		return err
+	}
+	_, err = targetCollection.RemoveDocument(ctx, hashString(string(fullpath)))
+	if err != nil && !driver.IsNotFound(err) {
+		glog.Errorf("find %s: %v", fullpath, err)
+		return fmt.Errorf("delete %s : %v", fullpath, err)
+	}
+	return nil
+}
+
+// this runs in log time
+func (store *ArangodbStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath) (err error) {
+	var query string
+	targetCollection, err := store.extractBucketCollection(ctx, fullpath)
+	if err != nil {
+		return err
+	}
+	query = query + fmt.Sprintf(`
+	for d in %s
+	filter starts_with(d.directory, "%s/")  || d.directory == "%s"
+	remove d._key in %s`,
+		targetCollection.Name(),
+		strings.Join(strings.Split(string(fullpath), "/"), ","),
+		string(fullpath),
+		targetCollection.Name(),
+	)
+	cur, err := store.database.Query(ctx, query, nil)
+	if err != nil {
+		return fmt.Errorf("delete %s : %v", fullpath, err)
+	}
+	defer cur.Close()
+	return nil
+}
+
+func (store *ArangodbStore) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc filer.ListEachEntryFunc) (lastFileName string, err error) {
+	return store.ListDirectoryPrefixedEntries(ctx, dirPath, startFileName, includeStartFile, limit, "", eachEntryFunc)
+}
+
+func (store *ArangodbStore) ListDirectoryPrefixedEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, prefix string, eachEntryFunc filer.ListEachEntryFunc) (lastFileName string, err error) {
+	targetCollection, err := store.extractBucketCollection(ctx, dirPath+"/")
+	if err != nil {
+		return lastFileName, err
+	}
+	query := "for d in " + targetCollection.Name()
+	if includeStartFile {
+		query = query + " filter d.name >= \"" + startFileName + "\" "
+	} else {
+		query = query + " filter d.name > \"" + startFileName + "\" "
+	}
+	if prefix != "" {
+		query = query + fmt.Sprintf(`&& starts_with(d.name, "%s")`, prefix)
+	}
+	query = query + `
+filter d.directory == @dir
+sort d.name asc
+`
+	if limit > 0 {
+		query = query + "limit " + strconv.Itoa(int(limit))
+	}
+	query = query + "\n return d"
+	cur, err := store.database.Query(ctx, query, map[string]interface{}{"dir": dirPath})
+	if err != nil {
+		return lastFileName, fmt.Errorf("failed to list directory entries: find error: %w", err)
+	}
+	defer cur.Close()
+	for cur.HasMore() {
+		var data Model
+		_, err = cur.ReadDocument(ctx, &data)
+		if err != nil {
+			break
+		}
+		entry := &filer.Entry{
+			FullPath: util.NewFullPath(data.Directory, data.Name),
+		}
+		lastFileName = data.Name
+		converted := arrayToBytes(data.Meta)
+		if decodeErr := entry.DecodeAttributesAndChunks(util.MaybeDecompressData(converted)); decodeErr != nil {
+			err = decodeErr
+			glog.V(0).Infof("list %s : %v", entry.FullPath, err)
+			break
+		}
+
+		if !eachEntryFunc(entry) {
+			break
+		}
+
+	}
+	return lastFileName, err
+}
+
+func (store *ArangodbStore) Shutdown() {
+}

weed/filer/arangodb/arangodb_store_bucket.go

@@ -0,0 +1,40 @@
+package arangodb
+
+import (
+	"context"
+	"github.com/arangodb/go-driver"
+	"time"
+
+	"github.com/chrislusf/seaweedfs/weed/filer"
+
+	"github.com/chrislusf/seaweedfs/weed/glog"
+)
+
+var _ filer.BucketAware = (*ArangodbStore)(nil)
+
+func (store *ArangodbStore) OnBucketCreation(bucket string) {
+	timeout, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	// create the collection && add to cache
+	_, err := store.ensureBucket(timeout, bucket)
+	if err != nil {
+		glog.Errorf("bucket create %s: %v", bucket, err)
+	}
+}
+func (store *ArangodbStore) OnBucketDeletion(bucket string) {
+	timeout, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	collection, err := store.ensureBucket(timeout, bucket)
+	if err != nil {
+		glog.Errorf("bucket delete %s: %v", bucket, err)
+		return
+	}
+	err = collection.Remove(timeout)
+	if err != nil && !driver.IsNotFound(err) {
+		glog.Errorf("bucket delete %s: %v", bucket, err)
+		return
+	}
+}
+func (store *ArangodbStore) CanDropWholeBucket() bool {
+	return true
+}

weed/filer/arangodb/arangodb_store_kv.go

@@ -0,0 +1,54 @@
+package arangodb
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/arangodb/go-driver"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+)
+
+func (store *ArangodbStore) KvPut(ctx context.Context, key []byte, value []byte) (err error) {
+	model := &Model{
+		Key:       hashString(".kvstore." + string(key)),
+		Directory: ".kvstore." + string(key),
+		Meta:      bytesToArray(value),
+	}
+
+	exists, err := store.kvCollection.DocumentExists(ctx, model.Key)
+	if err != nil {
+		return fmt.Errorf("kv put: %v", err)
+	}
+	if exists {
+		_, err = store.kvCollection.UpdateDocument(ctx, model.Key, model)
+	} else {
+		_, err = store.kvCollection.CreateDocument(ctx, model)
+	}
+	if err != nil {
+		return fmt.Errorf("kv put: %v", err)
+	}
+
+	return nil
+}
+func (store *ArangodbStore) KvGet(ctx context.Context, key []byte) (value []byte, err error) {
+	var model Model
+	_, err = store.kvCollection.ReadDocument(ctx, hashString(".kvstore."+string(key)), &model)
+	if driver.IsNotFound(err) {
+		return nil, filer.ErrKvNotFound
+	}
+	if err != nil {
+		glog.Errorf("kv get: %s %v", string(key), err)
+		return nil, filer.ErrKvNotFound
+	}
+	return arrayToBytes(model.Meta), nil
+}
+
+func (store *ArangodbStore) KvDelete(ctx context.Context, key []byte) (err error) {
+	_, err = store.kvCollection.RemoveDocument(ctx, hashString(".kvstore."+string(key)))
+	if err != nil {
+		glog.Errorf("kv del: %v", err)
+		return filer.ErrKvNotFound
+	}
+	return nil
+}

weed/filer/arangodb/helpers.go

@@ -0,0 +1,136 @@
+package arangodb
+
+import (
+	"context"
+	"crypto/md5"
+	"encoding/binary"
+	"encoding/hex"
+	"io"
+	"strings"
+
+	"github.com/arangodb/go-driver"
+	"github.com/chrislusf/seaweedfs/weed/util"
+)
+
+//convert a string into arango-key safe hex bytes hash
+func hashString(dir string) string {
+	h := md5.New()
+	io.WriteString(h, dir)
+	b := h.Sum(nil)
+	return hex.EncodeToString(b)
+}
+
+// convert slice of bytes into slice of uint64
+// the first uint64 indicates the length in bytes
+func bytesToArray(bs []byte) []uint64 {
+	out := make([]uint64, 0, 2+len(bs)/8)
+	out = append(out, uint64(len(bs)))
+	for len(bs)%8 != 0 {
+		bs = append(bs, 0)
+	}
+	for i := 0; i < len(bs); i = i + 8 {
+		out = append(out, binary.BigEndian.Uint64(bs[i:]))
+	}
+	return out
+}
+
+// convert from slice of uint64 back to bytes
+// if input length is 0 or 1, will return nil
+func arrayToBytes(xs []uint64) []byte {
+	if len(xs) < 2 {
+		return nil
+	}
+	first := xs[0]
+	out := make([]byte, len(xs)*8) // i think this can actually be len(xs)*8-8, but i dont think an extra 8 bytes hurts...
+	for i := 1; i < len(xs); i = i + 1 {
+		binary.BigEndian.PutUint64(out[((i-1)*8):], xs[i])
+	}
+	return out[:first]
+}
+
+// gets the collection the bucket points to from filepath
+func (store *ArangodbStore) extractBucketCollection(ctx context.Context, fullpath util.FullPath) (c driver.Collection, err error) {
+	bucket, _ := extractBucket(fullpath)
+	if bucket == "" {
+		bucket = DEFAULT_COLLECTION
+	}
+	c, err = store.ensureBucket(ctx, bucket)
+	if err != nil {
+		return nil, err
+	}
+	return c, err
+}
+
+// called by extractBucketCollection
+func extractBucket(fullpath util.FullPath) (string, string) {
+	if !strings.HasPrefix(string(fullpath), BUCKET_PREFIX+"/") {
+		return "", string(fullpath)
+	}
+	if strings.Count(string(fullpath), "/") < 3 {
+		return "", string(fullpath)
+	}
+	bucketAndObjectKey := string(fullpath)[len(BUCKET_PREFIX+"/"):]
+	t := strings.Index(bucketAndObjectKey, "/")
+	bucket := bucketAndObjectKey
+	shortPath := "/"
+	if t > 0 {
+		bucket = bucketAndObjectKey[:t]
+		shortPath = string(util.FullPath(bucketAndObjectKey[t:]))
+	}
+	return bucket, shortPath
+}
+
+// get bucket collection from cache. if not exist, creates the buckets collection and grab it
+func (store *ArangodbStore) ensureBucket(ctx context.Context, bucket string) (bc driver.Collection, err error) {
+	var ok bool
+	store.mu.RLock()
+	bc, ok = store.buckets[bucket]
+	store.mu.RUnlock()
+	if ok {
+		return bc, nil
+	}
+	store.mu.Lock()
+	defer store.mu.Unlock()
+	store.buckets[bucket], err = store.ensureCollection(ctx, bucket)
+	if err != nil {
+		return nil, err
+	}
+	return store.buckets[bucket], nil
+}
+
+// creates collection if not exist, ensures indices if not exist
+func (store *ArangodbStore) ensureCollection(ctx context.Context, name string) (c driver.Collection, err error) {
+	ok, err := store.database.CollectionExists(ctx, name)
+	if err != nil {
+		return
+	}
+	if ok {
+		c, err = store.database.Collection(ctx, name)
+	} else {
+		c, err = store.database.CreateCollection(ctx, name, &driver.CreateCollectionOptions{})
+	}
+	if err != nil {
+		return
+	}
+	// ensure indices
+	if _, _, err = c.EnsurePersistentIndex(ctx, []string{"directory", "name"},
+		&driver.EnsurePersistentIndexOptions{
+			Name: "directory_name_multi", Unique: true,
+		}); err != nil {
+		return
+	}
+	if _, _, err = c.EnsurePersistentIndex(ctx, []string{"directory"},
+		&driver.EnsurePersistentIndexOptions{Name: "IDX_directory"}); err != nil {
+		return
+	}
+	if _, _, err = c.EnsureTTLIndex(ctx, "ttl", 1,
+		&driver.EnsureTTLIndexOptions{Name: "IDX_TTL"}); err != nil {
+		return
+	}
+	if _, _, err = c.EnsurePersistentIndex(ctx, []string{"name"}, &driver.EnsurePersistentIndexOptions{
+		Name: "IDX_name",
+	}); err != nil {
+		return
+	}
+	return c, nil
+}

weed/filer/arangodb/readme.md

@@ -0,0 +1,52 @@
+##arangodb
+
+database: https://github.com/arangodb/arangodb
+go driver: https://github.com/arangodb/go-driver
+
+options:
+
+```
+[arangodb]
+enabled=true
+db_name="seaweedfs"
+servers=["http://localhost:8529"]
+#basic auth
+user="root"
+pass="test"
+
+# tls settings
+insecure_skip_verify=true
+```
+
+i test using this dev database:
+`docker run -p 8529:8529 -e ARANGO_ROOT_PASSWORD=test arangodb/arangodb:3.9.0`
+
+
+## features i don't personally need but are missing
+ [ ] provide tls cert to arango
+ [ ] authentication that is not basic auth
+ [ ] synchronise endpoint interval config
+ [ ] automatic creation of custom index
+ [ ] configure default arangodb collection sharding rules
+ [ ] configure default arangodb collection replication rules
+
+
+## complexity
+
+ok, so if https://www.arangodb.com/docs/stable/indexing-index-basics.html#persistent-index is correct
+
+O(1)
+- InsertEntry
+- UpdateEntry
+- FindEntry
+- DeleteEntry
+- KvPut
+- KvGet
+- KvDelete
+
+O(log(BUCKET_SIZE))
+- DeleteFolderChildren
+
+O(log(DIRECTORY_SIZE))
+- ListDirectoryEntries
+- ListDirectoryPrefixedEntries

weed/filer/cassandra/cassandra_store.go

@@ -100,7 +100,7 @@ func (store *CassandraStore) InsertEntry(ctx context.Context, entry *filer.Entry
 		return fmt.Errorf("encode %s: %s", entry.FullPath, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		meta = util.MaybeGzipData(meta)
 	}
 

weed/filer/elastic/v7/doc.go

@@ -0,0 +1,9 @@
+/*
+
+Package elastic is for elastic filer store.
+
+The referenced "github.com/olivere/elastic/v7" library is too big when compiled.
+So this is only compiled in "make full_install".
+
+*/
+package elastic

weed/filer/elastic/v7/elastic_store.go

@@ -1,3 +1,6 @@
+//go:build elastic
+// +build elastic
+
 package elastic
 
 import (

weed/filer/elastic/v7/elastic_store_kv.go

@@ -1,3 +1,6 @@
+//go:build elastic
+// +build elastic
+
 package elastic
 
 import (

weed/filer/etcd/etcd_store.go

@@ -82,7 +82,7 @@ func (store *EtcdStore) InsertEntry(ctx context.Context, entry *filer.Entry) (er
 		return fmt.Errorf("encoding %s %+v: %v", entry.FullPath, entry.Attr, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		meta = weed_util.MaybeGzipData(meta)
 	}
 
@@ -152,7 +152,7 @@ func (store *EtcdStore) ListDirectoryEntries(ctx context.Context, dirPath weed_u
 	}
 
 	resp, err := store.client.Get(ctx, string(lastFileStart),
-		clientv3.WithPrefix(), clientv3.WithSort(clientv3.SortByKey, clientv3.SortDescend))
+		clientv3.WithFromKey(), clientv3.WithLimit(limit+1))
 	if err != nil {
 		return lastFileName, fmt.Errorf("list %s : %v", dirPath, err)
 	}

weed/filer/etcd/etcd_store_test.go

@@ -0,0 +1,16 @@
+package etcd
+
+import (
+	"github.com/chrislusf/seaweedfs/weed/filer/store_test"
+	"testing"
+)
+
+func TestStore(t *testing.T) {
+	// run "make test_etcd" under docker folder.
+	// to set up local env
+	if false {
+		store := &EtcdStore{}
+		store.initialize("localhost:2379", "3s")
+		store_test.TestFilerStore(t, store)
+	}
+}

weed/filer/filechunk_manifest.go

@@ -68,12 +68,12 @@ func ResolveChunkManifest(lookupFileIdFn wdclient.LookupFileIdFunctionType, chun
 
 		manifestChunks = append(manifestChunks, chunk)
 		// recursive
-		dataChunks, manifestChunks, subErr := ResolveChunkManifest(lookupFileIdFn, resolvedChunks, startOffset, stopOffset)
+		subDataChunks, subManifestChunks, subErr := ResolveChunkManifest(lookupFileIdFn, resolvedChunks, startOffset, stopOffset)
 		if subErr != nil {
 			return chunks, nil, subErr
 		}
-		dataChunks = append(dataChunks, dataChunks...)
-		manifestChunks = append(manifestChunks, manifestChunks...)
+		dataChunks = append(dataChunks, subDataChunks...)
+		manifestChunks = append(manifestChunks, subManifestChunks...)
 	}
 	return
 }

weed/filer/filechunks.go

@@ -4,8 +4,8 @@ import (
 	"bytes"
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/wdclient"
+	"golang.org/x/exp/slices"
 	"math"
-	"sort"
 	"sync"
 
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
@@ -254,19 +254,17 @@ func NonOverlappingVisibleIntervals(lookupFileIdFn wdclient.LookupFileIdFunction
 	if true {
 		return visibles2, err
 	}
-
-	sort.Slice(chunks, func(i, j int) bool {
-		if chunks[i].Mtime == chunks[j].Mtime {
-			filer_pb.EnsureFid(chunks[i])
-			filer_pb.EnsureFid(chunks[j])
-			if chunks[i].Fid == nil || chunks[j].Fid == nil {
+	slices.SortFunc(chunks, func(a, b *filer_pb.FileChunk) bool {
+		if a.Mtime == b.Mtime {
+			filer_pb.EnsureFid(a)
+			filer_pb.EnsureFid(b)
+			if a.Fid == nil || b.Fid == nil {
 				return true
 			}
-			return chunks[i].Fid.FileKey < chunks[j].Fid.FileKey
+			return a.Fid.FileKey < b.Fid.FileKey
 		}
-		return chunks[i].Mtime < chunks[j].Mtime // keep this to make tests run
+		return a.Mtime < b.Mtime
 	})
-
 	for _, chunk := range chunks {
 
 		// glog.V(0).Infof("merge [%d,%d)", chunk.Offset, chunk.Offset+int64(chunk.Size))

weed/filer/filechunks2_test.go

@@ -1,7 +1,7 @@
 package filer
 
 import (
-	"sort"
+	"golang.org/x/exp/slices"
 	"testing"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
@@ -34,11 +34,11 @@ func TestCompactFileChunksRealCase(t *testing.T) {
 }
 
 func printChunks(name string, chunks []*filer_pb.FileChunk) {
-	sort.Slice(chunks, func(i, j int) bool {
-		if chunks[i].Offset == chunks[j].Offset {
-			return chunks[i].Mtime < chunks[j].Mtime
+	slices.SortFunc(chunks, func(a, b *filer_pb.FileChunk) bool {
+		if a.Offset == b.Offset {
+			return a.Mtime < b.Mtime
 		}
-		return chunks[i].Offset < chunks[j].Offset
+		return a.Offset < b.Offset
 	})
 	for _, chunk := range chunks {
 		glog.V(0).Infof("%s chunk %s [%10d,%10d)", name, chunk.GetFileIdString(), chunk.Offset, chunk.Offset+int64(chunk.Size))

weed/filer/filechunks_read.go

@@ -2,7 +2,7 @@ package filer
 
 import (
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"sort"
+	"golang.org/x/exp/slices"
 )
 
 func readResolvedChunks(chunks []*filer_pb.FileChunk) (visibles []VisibleInterval) {
@@ -22,17 +22,14 @@ func readResolvedChunks(chunks []*filer_pb.FileChunk) (visibles []VisibleInterva
 			isStart: false,
 		})
 	}
-	sort.Slice(points, func(i, j int) bool {
-		if points[i].x != points[j].x {
-			return points[i].x < points[j].x
+	slices.SortFunc(points, func(a, b *Point) bool {
+		if a.x != b.x {
+			return a.x < b.x
 		}
-		if points[i].ts != points[j].ts {
-			return points[i].ts < points[j].ts
+		if a.ts != b.ts {
+			return a.ts < b.ts
 		}
-		if !points[i].isStart {
-			return true
-		}
-		return false
+		return !a.isStart
 	})
 
 	var prevX int64

weed/filer/filer.go

@@ -49,10 +49,10 @@ type Filer struct {
 	UniqueFileId        uint32
 }
 
-func NewFiler(masters map[string]pb.ServerAddress, grpcDialOption grpc.DialOption,
-	filerHost pb.ServerAddress, collection string, replication string, dataCenter string, notifyFn func()) *Filer {
+func NewFiler(masters map[string]pb.ServerAddress, grpcDialOption grpc.DialOption, filerHost pb.ServerAddress,
+	filerGroup string, collection string, replication string, dataCenter string, notifyFn func()) *Filer {
 	f := &Filer{
-		MasterClient:        wdclient.NewMasterClient(grpcDialOption, cluster.FilerType, filerHost, dataCenter, masters),
+		MasterClient:        wdclient.NewMasterClient(grpcDialOption, filerGroup, cluster.FilerType, filerHost, dataCenter, masters),
 		fileIdDeletionQueue: util.NewUnboundedQueue(),
 		GrpcDialOption:      grpcDialOption,
 		FilerConf:           NewFilerConf(),
@@ -84,6 +84,7 @@ func (f *Filer) ListExistingPeerUpdates() (existingNodes []*master_pb.ClusterNod
 	if grpcErr := pb.WithMasterClient(false, f.MasterClient.GetMaster(), f.GrpcDialOption, func(client master_pb.SeaweedClient) error {
 		resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{
 			ClientType: cluster.FilerType,
+			FilerGroup: f.MasterClient.FilerGroup,
 		})
 
 		glog.V(0).Infof("the cluster has %d filers\n", len(resp.ClusterNodes))

weed/filer/filer_delete_entry.go

@@ -25,9 +25,7 @@ func (f *Filer) DeleteEntryMetaAndData(ctx context.Context, p util.FullPath, isR
 	if findErr != nil {
 		return findErr
 	}
-
 	isDeleteCollection := f.isBucket(entry)
-
 	if entry.IsDirectory() {
 		// delete the folder children, not including the folder itself
 		err = f.doBatchDeleteFolderMetaAndData(ctx, entry, isRecursive, ignoreRecursiveError, shouldDeleteChunks && !isDeleteCollection, isDeleteCollection, isFromOtherCluster, signatures, func(chunks []*filer_pb.FileChunk) error {

weed/filer/filer_notify.go

@@ -100,7 +100,7 @@ func (f *Filer) logFlushFunc(startTime, stopTime time.Time, buf []byte) {
 
 	for {
 		if err := f.appendToFile(targetFile, buf); err != nil {
-			glog.V(1).Infof("log write failed %s: %v", targetFile, err)
+			glog.V(0).Infof("metadata log write failed %s: %v", targetFile, err)
 			time.Sleep(737 * time.Millisecond)
 		} else {
 			break

weed/filer/filerstore.go

@@ -7,6 +7,8 @@ import (
 	"io"
 )
 
+const CountEntryChunksForGzip = 50
+
 var (
 	ErrUnsupportedListDirectoryPrefixed      = errors.New("unsupported directory prefix listing")
 	ErrUnsupportedSuperLargeDirectoryListing = errors.New("unsupported super large directory listing")

weed/filer/hbase/hbase_store.go

@@ -75,7 +75,7 @@ func (store *HbaseStore) InsertEntry(ctx context.Context, entry *filer.Entry) er
 	if err != nil {
 		return fmt.Errorf("encoding %s %+v: %v", entry.FullPath, entry.Attr, err)
 	}
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		value = util.MaybeGzipData(value)
 	}
 

weed/filer/leveldb/leveldb_store.go

@@ -86,7 +86,7 @@ func (store *LevelDBStore) InsertEntry(ctx context.Context, entry *filer.Entry)
 		return fmt.Errorf("encoding %s %+v: %v", entry.FullPath, entry.Attr, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		value = weed_util.MaybeGzipData(value)
 	}
 

weed/filer/leveldb/leveldb_store_test.go

@@ -12,7 +12,7 @@ import (
 )
 
 func TestCreateAndFind(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", "", nil)
 	dir := t.TempDir()
 	store := &LevelDBStore{}
 	store.initialize(dir)
@@ -65,7 +65,7 @@ func TestCreateAndFind(t *testing.T) {
 }
 
 func TestEmptyRoot(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", "", nil)
 	dir := t.TempDir()
 	store := &LevelDBStore{}
 	store.initialize(dir)
@@ -87,7 +87,7 @@ func TestEmptyRoot(t *testing.T) {
 }
 
 func BenchmarkInsertEntry(b *testing.B) {
-	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", "", nil)
 	dir := b.TempDir()
 	store := &LevelDBStore{}
 	store.initialize(dir)

weed/filer/leveldb2/leveldb2_store.go

@@ -88,7 +88,7 @@ func (store *LevelDB2Store) InsertEntry(ctx context.Context, entry *filer.Entry)
 		return fmt.Errorf("encoding %s %+v: %v", entry.FullPath, entry.Attr, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		value = weed_util.MaybeGzipData(value)
 	}
 

weed/filer/leveldb2/leveldb2_store_test.go

@@ -9,7 +9,7 @@ import (
 )
 
 func TestCreateAndFind(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", "", nil)
 	dir := t.TempDir()
 	store := &LevelDB2Store{}
 	store.initialize(dir, 2)
@@ -62,7 +62,7 @@ func TestCreateAndFind(t *testing.T) {
 }
 
 func TestEmptyRoot(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", "", nil)
 	dir := t.TempDir()
 	store := &LevelDB2Store{}
 	store.initialize(dir, 2)

weed/filer/leveldb3/leveldb3_store.go

@@ -177,7 +177,7 @@ func (store *LevelDB3Store) InsertEntry(ctx context.Context, entry *filer.Entry)
 		return fmt.Errorf("encoding %s %+v: %v", entry.FullPath, entry.Attr, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		value = weed_util.MaybeGzipData(value)
 	}
 

weed/filer/leveldb3/leveldb3_store_test.go

@@ -9,7 +9,7 @@ import (
 )
 
 func TestCreateAndFind(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", "", nil)
 	dir := t.TempDir()
 	store := &LevelDB3Store{}
 	store.initialize(dir)
@@ -62,7 +62,7 @@ func TestCreateAndFind(t *testing.T) {
 }
 
 func TestEmptyRoot(t *testing.T) {
-	testFiler := filer.NewFiler(nil, nil, "", "", "", "", nil)
+	testFiler := filer.NewFiler(nil, nil, "", "", "", "", "", nil)
 	dir := t.TempDir()
 	store := &LevelDB3Store{}
 	store.initialize(dir)

weed/filer/mongodb/mongodb_store.go

@@ -107,7 +107,7 @@ func (store *MongodbStore) UpdateEntry(ctx context.Context, entry *filer.Entry)
 		return fmt.Errorf("encode %s: %s", entry.FullPath, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		meta = util.MaybeGzipData(meta)
 	}
 

weed/filer/redis/universal_redis_store.go

@@ -3,7 +3,7 @@ package redis
 import (
 	"context"
 	"fmt"
-	"sort"
+	"golang.org/x/exp/slices"
 	"strings"
 	"time"
 
@@ -40,7 +40,7 @@ func (store *UniversalRedisStore) InsertEntry(ctx context.Context, entry *filer.
 		return fmt.Errorf("encoding %s %+v: %v", entry.FullPath, entry.Attr, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		value = util.MaybeGzipData(value)
 	}
 
@@ -157,8 +157,8 @@ func (store *UniversalRedisStore) ListDirectoryEntries(ctx context.Context, dirP
 	}
 
 	// sort
-	sort.Slice(members, func(i, j int) bool {
-		return strings.Compare(members[i], members[j]) < 0
+	slices.SortFunc(members, func(a, b string) bool {
+		return strings.Compare(a, b) < 0
 	})
 
 	// limit

weed/filer/redis2/universal_redis_store.go

@@ -52,7 +52,7 @@ func (store *UniversalRedis2Store) InsertEntry(ctx context.Context, entry *filer
 		return fmt.Errorf("encoding %s %+v: %v", entry.FullPath, entry.Attr, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		value = util.MaybeGzipData(value)
 	}
 

weed/filer/redis3/universal_redis_store.go

@@ -40,7 +40,7 @@ func (store *UniversalRedis3Store) InsertEntry(ctx context.Context, entry *filer
 		return fmt.Errorf("encoding %s %+v: %v", entry.FullPath, entry.Attr, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		value = util.MaybeGzipData(value)
 	}
 

weed/filer/redis_lua/universal_redis_store.go

@@ -53,7 +53,7 @@ func (store *UniversalRedisLuaStore) InsertEntry(ctx context.Context, entry *fil
 		return fmt.Errorf("encoding %s %+v: %v", entry.FullPath, entry.Attr, err)
 	}
 
-	if len(entry.Chunks) > 50 {
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
 		value = util.MaybeGzipData(value)
 	}
 

weed/filer/sqlite/doc.go

@@ -0,0 +1,9 @@
+/*
+
+Package sqlite is for sqlite filer store.
+
+The referenced "modernc.org/sqlite" library is too big when compiled.
+So this is only compiled in "make full_install".
+
+*/
+package sqlite

weed/filer/sqlite/sqlite_store.go

@@ -1,5 +1,6 @@
-//go:build linux || darwin || windows
+//go:build (linux || darwin || windows) && sqlite
 // +build linux darwin windows
+// +build sqlite
 
 // limited GOOS due to modernc.org/libc/unistd
 

weed/filer/sqlite/sqlite_store_unsupported.go

@@ -1,5 +1,5 @@
-//go:build !linux && !darwin && !windows && !s390 && !ppc64le && !mips64
-// +build !linux,!darwin,!windows,!s390,!ppc64le,!mips64
+//go:build !linux && !darwin && !windows && !s390 && !ppc64le && !mips64 && !sqlite
+// +build !linux,!darwin,!windows,!s390,!ppc64le,!mips64,!sqlite
 
 // limited GOOS due to modernc.org/libc/unistd
 

weed/filer/store_test/test_suite.go

@@ -0,0 +1,55 @@
+package store_test
+
+import (
+	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"github.com/stretchr/testify/assert"
+	"os"
+	"testing"
+)
+
+func TestFilerStore(t *testing.T, store filer.FilerStore) {
+	ctx := context.Background()
+
+	store.InsertEntry(ctx, makeEntry(util.FullPath("/"), true))
+	store.InsertEntry(ctx, makeEntry(util.FullPath("/a"), true))
+	store.InsertEntry(ctx, makeEntry(util.FullPath("/a/b"), true))
+	store.InsertEntry(ctx, makeEntry(util.FullPath("/a/b/c"), true))
+	for i := 0; i < 2000; i++ {
+		store.InsertEntry(ctx, makeEntry(util.FullPath(fmt.Sprintf("/a/b/c/f%05d", i)), false))
+	}
+
+	{
+		var counter int
+		lastFileName, err := store.ListDirectoryEntries(ctx, util.FullPath("/a/b/c"), "", false, 3, func(entry *filer.Entry) bool {
+			counter++
+			return true
+		})
+		assert.Nil(t, err, "list directory")
+		assert.Equal(t, 3, counter, "directory list counter")
+		assert.Equal(t, "f00003", lastFileName, "directory list last file")
+		lastFileName, err = store.ListDirectoryEntries(ctx, util.FullPath("/a/b/c"), lastFileName, false, 1024, func(entry *filer.Entry) bool {
+			counter++
+			return true
+		})
+		assert.Nil(t, err, "list directory")
+		assert.Equal(t, 1027, counter, "directory list counter")
+		assert.Equal(t, "f01027", lastFileName, "directory list last file")
+	}
+
+}
+
+func makeEntry(fullPath util.FullPath, isDirectory bool) *filer.Entry {
+	var mode os.FileMode
+	if isDirectory {
+		mode = os.ModeDir
+	}
+	return &filer.Entry{
+		FullPath: fullPath,
+		Attr: filer.Attr{
+			Mode: mode,
+		},
+	}
+}

weed/filer/stream.go

@@ -3,6 +3,7 @@ package filer
 import (
 	"bytes"
 	"fmt"
+	"golang.org/x/exp/slices"
 	"io"
 	"math"
 	"sort"
@@ -39,11 +40,11 @@ func isSameChunks(a, b []*filer_pb.FileChunk) bool {
 	if len(a) != len(b) {
 		return false
 	}
-	sort.Slice(a, func(i, j int) bool {
-		return strings.Compare(a[i].ETag, a[j].ETag) < 0
+	slices.SortFunc(a, func(i, j *filer_pb.FileChunk) bool {
+		return strings.Compare(i.ETag, j.ETag) < 0
 	})
-	sort.Slice(b, func(i, j int) bool {
-		return strings.Compare(b[i].ETag, b[j].ETag) < 0
+	slices.SortFunc(b, func(i, j *filer_pb.FileChunk) bool {
+		return strings.Compare(i.ETag, j.ETag) < 0
 	})
 	for i := 0; i < len(a); i++ {
 		if a[i].ETag != b[i].ETag {
@@ -179,8 +180,8 @@ var _ = io.ReaderAt(&ChunkStreamReader{})
 func doNewChunkStreamReader(lookupFileIdFn wdclient.LookupFileIdFunctionType, chunks []*filer_pb.FileChunk) *ChunkStreamReader {
 
 	chunkViews := ViewFromChunks(lookupFileIdFn, chunks, 0, math.MaxInt64)
-	sort.Slice(chunkViews, func(i, j int) bool {
-		return chunkViews[i].LogicOffset < chunkViews[j].LogicOffset
+	slices.SortFunc(chunkViews, func(a, b *ChunkView) bool {
+		return a.LogicOffset < b.LogicOffset
 	})
 
 	var totalSize int64

weed/filer/ydb/doc.go

@@ -0,0 +1,9 @@
+/*
+
+Package ydb is for YDB filer store.
+
+The referenced "github.com/ydb-platform/ydb-go-sdk/v3" library is too big when compiled.
+So this is only compiled in "make full_install".
+
+*/
+package ydb

weed/filer/ydb/readme.md

@@ -0,0 +1,27 @@
+## YDB
+
+database: https://github.com/ydb-platform/ydb
+
+go driver: https://github.com/ydb-platform/ydb-go-sdk
+
+options:
+
+```
+[ydb]
+enabled=true
+dsn=grpcs://ydb-ru.yandex.net:2135/?database=/ru/home/username/db
+prefix="seaweedfs"
+useBucketPrefix=true
+poolSizeLimit=50
+dialTimeOut = 10
+```
+
+Authenticate produced with one of next environment variables:
+ * `YDB_SERVICE_ACCOUNT_KEY_FILE_CREDENTIALS=<path/to/sa_key_file>` — used service account key file by path
+ * `YDB_ANONYMOUS_CREDENTIALS="1"` — used for authenticate with anonymous access. Anonymous access needs for connect to testing YDB installation
+ * `YDB_METADATA_CREDENTIALS="1"` — used metadata service for authenticate to YDB from yandex cloud virtual machine or from yandex function
+ * `YDB_ACCESS_TOKEN_CREDENTIALS=<access_token>` — used for authenticate to YDB with short-life access token. For example, access token may be IAM token
+ * `YDB_CONNECTION_STRING="grpcs://endpoint/?database=database"`
+
+ * i test using this dev database:
+`make dev_ydb`

weed/filer/ydb/ydb_queries.go

@@ -0,0 +1,72 @@
+//go:build ydb
+// +build ydb
+
+package ydb
+
+import asql "github.com/chrislusf/seaweedfs/weed/filer/abstract_sql"
+
+const (
+	upsertQuery = `
+		PRAGMA TablePathPrefix("%v");
+		DECLARE $dir_hash AS int64;
+		DECLARE $directory AS Utf8;
+		DECLARE $name AS Utf8;
+		DECLARE $meta AS String;
+		DECLARE $expire_at AS Optional<uint32>;
+
+		UPSERT INTO ` + asql.DEFAULT_TABLE + `
+			(dir_hash, name, directory, meta, expire_at)
+		VALUES
+			($dir_hash, $name, $directory, $meta, $expire_at);`
+
+	deleteQuery = `
+		PRAGMA TablePathPrefix("%v");
+		DECLARE $dir_hash AS int64;
+		DECLARE $name AS Utf8;
+
+		DELETE FROM ` + asql.DEFAULT_TABLE + ` 
+		WHERE dir_hash = $dir_hash AND name = $name;`
+
+	findQuery = `
+		PRAGMA TablePathPrefix("%v");
+		DECLARE $dir_hash AS int64;
+		DECLARE $name AS Utf8;
+		
+		SELECT meta
+		FROM ` + asql.DEFAULT_TABLE + ` 
+		WHERE dir_hash = $dir_hash AND name = $name;`
+
+	deleteFolderChildrenQuery = `
+		PRAGMA TablePathPrefix("%v");
+		DECLARE $dir_hash AS int64;
+		DECLARE $directory AS Utf8;
+
+		DELETE FROM ` + asql.DEFAULT_TABLE + ` 
+		WHERE dir_hash = $dir_hash AND directory = $directory;`
+
+	listDirectoryQuery = `
+		PRAGMA TablePathPrefix("%v");
+		DECLARE $dir_hash AS int64;
+		DECLARE $directory AS Utf8;
+		DECLARE $start_name AS Utf8;
+		DECLARE $prefix AS Utf8;
+		DECLARE $limit AS Uint64;
+		
+		SELECT name, meta
+		FROM ` + asql.DEFAULT_TABLE + `
+		WHERE dir_hash = $dir_hash AND directory = $directory and name > $start_name and name LIKE $prefix
+		ORDER BY name ASC LIMIT $limit;`
+
+	listInclusiveDirectoryQuery = `
+		PRAGMA TablePathPrefix("%v");
+		DECLARE $dir_hash AS int64;
+		DECLARE $directory AS Utf8;
+		DECLARE $start_name AS Utf8;
+		DECLARE $prefix AS Utf8;
+		DECLARE $limit AS Uint64;
+		
+		SELECT name, meta
+		FROM ` + asql.DEFAULT_TABLE + `
+		WHERE dir_hash = $dir_hash AND directory = $directory and name >= $start_name and name LIKE $prefix
+		ORDER BY name ASC LIMIT $limit;`
+)

weed/filer/ydb/ydb_store.go

@@ -0,0 +1,413 @@
+//go:build ydb
+// +build ydb
+
+package ydb
+
+import (
+	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/filer/abstract_sql"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	environ "github.com/ydb-platform/ydb-go-sdk-auth-environ"
+	"github.com/ydb-platform/ydb-go-sdk/v3"
+	"github.com/ydb-platform/ydb-go-sdk/v3/sugar"
+	"github.com/ydb-platform/ydb-go-sdk/v3/table"
+	"github.com/ydb-platform/ydb-go-sdk/v3/table/result"
+	"github.com/ydb-platform/ydb-go-sdk/v3/table/result/named"
+	"github.com/ydb-platform/ydb-go-sdk/v3/table/types"
+	"os"
+	"path"
+	"strings"
+	"sync"
+	"time"
+)
+
+const (
+	defaultDialTimeOut = 10
+)
+
+var (
+	roTX = table.TxControl(
+		table.BeginTx(table.WithOnlineReadOnly()),
+		table.CommitTx(),
+	)
+	rwTX = table.DefaultTxControl()
+)
+
+type YdbStore struct {
+	DB                 ydb.Connection
+	dirBuckets         string
+	tablePathPrefix    string
+	SupportBucketTable bool
+	dbs                map[string]bool
+	dbsLock            sync.Mutex
+}
+
+func init() {
+	filer.Stores = append(filer.Stores, &YdbStore{})
+}
+
+func (store *YdbStore) GetName() string {
+	return "ydb"
+}
+
+func (store *YdbStore) Initialize(configuration util.Configuration, prefix string) (err error) {
+	return store.initialize(
+		configuration.GetString("filer.options.buckets_folder"),
+		configuration.GetString(prefix+"dsn"),
+		configuration.GetString(prefix+"prefix"),
+		configuration.GetBool(prefix+"useBucketPrefix"),
+		configuration.GetInt(prefix+"dialTimeOut"),
+		configuration.GetInt(prefix+"poolSizeLimit"),
+	)
+}
+
+func (store *YdbStore) initialize(dirBuckets string, dsn string, tablePathPrefix string, useBucketPrefix bool, dialTimeOut int, poolSizeLimit int) (err error) {
+	store.dirBuckets = dirBuckets
+	store.SupportBucketTable = useBucketPrefix
+	if store.SupportBucketTable {
+		glog.V(0).Infof("enabled BucketPrefix")
+	}
+	store.dbs = make(map[string]bool)
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	if dialTimeOut == 0 {
+		dialTimeOut = defaultDialTimeOut
+	}
+	opts := []ydb.Option{
+		ydb.WithDialTimeout(time.Duration(dialTimeOut) * time.Second),
+		environ.WithEnvironCredentials(ctx),
+	}
+	if poolSizeLimit > 0 {
+		opts = append(opts, ydb.WithSessionPoolSizeLimit(poolSizeLimit))
+	}
+	if dsn == "" {
+		dsn = os.Getenv("YDB_CONNECTION_STRING")
+	}
+	store.DB, err = ydb.Open(ctx, dsn, opts...)
+	if err != nil {
+		if store.DB != nil {
+			_ = store.DB.Close(ctx)
+			store.DB = nil
+		}
+		return fmt.Errorf("can not connect to %s error: %v", dsn, err)
+	}
+
+	store.tablePathPrefix = path.Join(store.DB.Name(), tablePathPrefix)
+	if err = sugar.MakeRecursive(ctx, store.DB, store.tablePathPrefix); err != nil {
+		return fmt.Errorf("MakeRecursive %s : %v", store.tablePathPrefix, err)
+	}
+
+	if err = store.createTable(ctx, store.tablePathPrefix); err != nil {
+		glog.Errorf("createTable %s: %v", store.tablePathPrefix, err)
+	}
+	return err
+}
+
+func (store *YdbStore) doTxOrDB(ctx context.Context, query *string, params *table.QueryParameters, tc *table.TransactionControl, processResultFunc func(res result.Result) error) (err error) {
+	var res result.Result
+	if tx, ok := ctx.Value("tx").(table.Transaction); ok {
+		res, err = tx.Execute(ctx, *query, params)
+		if err != nil {
+			return fmt.Errorf("execute transaction: %v", err)
+		}
+	} else {
+		err = store.DB.Table().Do(ctx, func(ctx context.Context, s table.Session) (err error) {
+			_, res, err = s.Execute(ctx, tc, *query, params)
+			if err != nil {
+				return fmt.Errorf("execute statement: %v", err)
+			}
+			return nil
+		})
+	}
+	if err != nil {
+		return err
+	}
+	if res != nil {
+		defer func() { _ = res.Close() }()
+		if processResultFunc != nil {
+			if err = processResultFunc(res); err != nil {
+				return fmt.Errorf("process result: %v", err)
+			}
+		}
+	}
+	return err
+}
+
+func (store *YdbStore) insertOrUpdateEntry(ctx context.Context, entry *filer.Entry) (err error) {
+	dir, name := entry.FullPath.DirAndName()
+	meta, err := entry.EncodeAttributesAndChunks()
+	if err != nil {
+		return fmt.Errorf("encode %s: %s", entry.FullPath, err)
+	}
+
+	if len(entry.Chunks) > filer.CountEntryChunksForGzip {
+		meta = util.MaybeGzipData(meta)
+	}
+	tablePathPrefix, shortDir := store.getPrefix(ctx, &dir)
+	fileMeta := FileMeta{util.HashStringToLong(dir), name, *shortDir, meta}
+	return store.doTxOrDB(ctx, withPragma(tablePathPrefix, upsertQuery), fileMeta.queryParameters(entry.TtlSec), rwTX, nil)
+}
+
+func (store *YdbStore) InsertEntry(ctx context.Context, entry *filer.Entry) (err error) {
+	return store.insertOrUpdateEntry(ctx, entry)
+}
+
+func (store *YdbStore) UpdateEntry(ctx context.Context, entry *filer.Entry) (err error) {
+	return store.insertOrUpdateEntry(ctx, entry)
+}
+
+func (store *YdbStore) FindEntry(ctx context.Context, fullpath util.FullPath) (entry *filer.Entry, err error) {
+	dir, name := fullpath.DirAndName()
+	var data []byte
+	entryFound := false
+	tablePathPrefix, shortDir := store.getPrefix(ctx, &dir)
+	query := withPragma(tablePathPrefix, findQuery)
+	queryParams := table.NewQueryParameters(
+		table.ValueParam("$dir_hash", types.Int64Value(util.HashStringToLong(*shortDir))),
+		table.ValueParam("$name", types.UTF8Value(name)))
+
+	err = store.doTxOrDB(ctx, query, queryParams, roTX, func(res result.Result) error {
+		if !res.NextResultSet(ctx) || !res.HasNextRow() {
+			return nil
+		}
+		for res.NextRow() {
+			if err = res.ScanNamed(named.OptionalWithDefault("meta", &data)); err != nil {
+				return fmt.Errorf("scanNamed %s : %v", fullpath, err)
+			}
+			entryFound = true
+			return nil
+		}
+		return res.Err()
+	})
+	if err != nil {
+		return nil, err
+	}
+	if !entryFound {
+		return nil, filer_pb.ErrNotFound
+	}
+
+	entry = &filer.Entry{
+		FullPath: fullpath,
+	}
+	if err := entry.DecodeAttributesAndChunks(util.MaybeDecompressData(data)); err != nil {
+		return nil, fmt.Errorf("decode %s : %v", fullpath, err)
+	}
+
+	return entry, nil
+}
+
+func (store *YdbStore) DeleteEntry(ctx context.Context, fullpath util.FullPath) (err error) {
+	dir, name := fullpath.DirAndName()
+	tablePathPrefix, shortDir := store.getPrefix(ctx, &dir)
+	query := withPragma(tablePathPrefix, deleteQuery)
+	queryParams := table.NewQueryParameters(
+		table.ValueParam("$dir_hash", types.Int64Value(util.HashStringToLong(*shortDir))),
+		table.ValueParam("$name", types.UTF8Value(name)))
+
+	return store.doTxOrDB(ctx, query, queryParams, rwTX, nil)
+}
+
+func (store *YdbStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath) (err error) {
+	dir, _ := fullpath.DirAndName()
+	tablePathPrefix, shortDir := store.getPrefix(ctx, &dir)
+	query := withPragma(tablePathPrefix, deleteFolderChildrenQuery)
+	queryParams := table.NewQueryParameters(
+		table.ValueParam("$dir_hash", types.Int64Value(util.HashStringToLong(*shortDir))),
+		table.ValueParam("$directory", types.UTF8Value(*shortDir)))
+
+	return store.doTxOrDB(ctx, query, queryParams, rwTX, nil)
+}
+
+func (store *YdbStore) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc filer.ListEachEntryFunc) (lastFileName string, err error) {
+	return store.ListDirectoryPrefixedEntries(ctx, dirPath, startFileName, includeStartFile, limit, "", eachEntryFunc)
+}
+
+func (store *YdbStore) ListDirectoryPrefixedEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, prefix string, eachEntryFunc filer.ListEachEntryFunc) (lastFileName string, err error) {
+	dir := string(dirPath)
+	tablePathPrefix, shortDir := store.getPrefix(ctx, &dir)
+	var query *string
+	if includeStartFile {
+		query = withPragma(tablePathPrefix, listInclusiveDirectoryQuery)
+	} else {
+		query = withPragma(tablePathPrefix, listDirectoryQuery)
+	}
+	truncated := true
+	eachEntryFuncIsNotBreake := true
+	entryCount := int64(0)
+	for truncated && eachEntryFuncIsNotBreake {
+		if lastFileName != "" {
+			startFileName = lastFileName
+			if includeStartFile {
+				query = withPragma(tablePathPrefix, listDirectoryQuery)
+			}
+		}
+		restLimit := limit - entryCount
+		queryParams := table.NewQueryParameters(
+			table.ValueParam("$dir_hash", types.Int64Value(util.HashStringToLong(*shortDir))),
+			table.ValueParam("$directory", types.UTF8Value(*shortDir)),
+			table.ValueParam("$start_name", types.UTF8Value(startFileName)),
+			table.ValueParam("$prefix", types.UTF8Value(prefix+"%")),
+			table.ValueParam("$limit", types.Uint64Value(uint64(restLimit))),
+		)
+		err = store.doTxOrDB(ctx, query, queryParams, roTX, func(res result.Result) error {
+			var name string
+			var data []byte
+			if !res.NextResultSet(ctx) || !res.HasNextRow() {
+				truncated = false
+				return nil
+			}
+			truncated = res.CurrentResultSet().Truncated()
+			for res.NextRow() {
+				if err := res.ScanNamed(
+					named.OptionalWithDefault("name", &name),
+					named.OptionalWithDefault("meta", &data)); err != nil {
+					return fmt.Errorf("list scanNamed %s : %v", dir, err)
+				}
+				lastFileName = name
+				entry := &filer.Entry{
+					FullPath: util.NewFullPath(dir, name),
+				}
+				if err = entry.DecodeAttributesAndChunks(util.MaybeDecompressData(data)); err != nil {
+					return fmt.Errorf("scan decode %s : %v", entry.FullPath, err)
+				}
+				if !eachEntryFunc(entry) {
+					eachEntryFuncIsNotBreake = false
+					break
+				}
+				entryCount += 1
+			}
+			return res.Err()
+		})
+	}
+	if err != nil {
+		return lastFileName, err
+	}
+	return lastFileName, nil
+}
+
+func (store *YdbStore) BeginTransaction(ctx context.Context) (context.Context, error) {
+	session, err := store.DB.Table().CreateSession(ctx)
+	if err != nil {
+		return ctx, err
+	}
+	tx, err := session.BeginTransaction(ctx, table.TxSettings(table.WithSerializableReadWrite()))
+	if err != nil {
+		return ctx, err
+	}
+	return context.WithValue(ctx, "tx", tx), nil
+}
+
+func (store *YdbStore) CommitTransaction(ctx context.Context) error {
+	if tx, ok := ctx.Value("tx").(table.Transaction); ok {
+		_, err := tx.CommitTx(ctx)
+		return err
+	}
+	return nil
+}
+
+func (store *YdbStore) RollbackTransaction(ctx context.Context) error {
+	if tx, ok := ctx.Value("tx").(table.Transaction); ok {
+		return tx.Rollback(ctx)
+	}
+	return nil
+}
+
+func (store *YdbStore) Shutdown() {
+	_ = store.DB.Close(context.Background())
+}
+
+func (store *YdbStore) CanDropWholeBucket() bool {
+	return store.SupportBucketTable
+}
+
+func (store *YdbStore) OnBucketCreation(bucket string) {
+	store.dbsLock.Lock()
+	defer store.dbsLock.Unlock()
+
+	if err := store.createTable(context.Background(),
+		path.Join(store.tablePathPrefix, bucket)); err != nil {
+		glog.Errorf("createTable %s: %v", bucket, err)
+	}
+
+	if store.dbs == nil {
+		return
+	}
+	store.dbs[bucket] = true
+}
+
+func (store *YdbStore) OnBucketDeletion(bucket string) {
+	store.dbsLock.Lock()
+	defer store.dbsLock.Unlock()
+
+	if err := store.deleteTable(context.Background(),
+		path.Join(store.tablePathPrefix, bucket)); err != nil {
+		glog.Errorf("deleteTable %s: %v", bucket, err)
+	}
+
+	if store.dbs == nil {
+		return
+	}
+	delete(store.dbs, bucket)
+}
+
+func (store *YdbStore) createTable(ctx context.Context, prefix string) error {
+	return store.DB.Table().Do(ctx, func(ctx context.Context, s table.Session) error {
+		return s.CreateTable(ctx, path.Join(prefix, abstract_sql.DEFAULT_TABLE), createTableOptions()...)
+	})
+}
+
+func (store *YdbStore) deleteTable(ctx context.Context, prefix string) error {
+	if !store.SupportBucketTable {
+		return nil
+	}
+	if err := store.DB.Table().Do(ctx, func(ctx context.Context, s table.Session) error {
+		return s.DropTable(ctx, path.Join(prefix, abstract_sql.DEFAULT_TABLE))
+	}); err != nil {
+		return err
+	}
+	glog.V(4).Infof("deleted table %s", prefix)
+
+	return nil
+}
+
+func (store *YdbStore) getPrefix(ctx context.Context, dir *string) (tablePathPrefix *string, shortDir *string) {
+	tablePathPrefix = &store.tablePathPrefix
+	shortDir = dir
+	if !store.SupportBucketTable {
+		return
+	}
+
+	prefixBuckets := store.dirBuckets + "/"
+	if strings.HasPrefix(*dir, prefixBuckets) {
+		// detect bucket
+		bucketAndDir := (*dir)[len(prefixBuckets):]
+		var bucket string
+		if t := strings.Index(bucketAndDir, "/"); t > 0 {
+			bucket = bucketAndDir[:t]
+		} else if t < 0 {
+			bucket = bucketAndDir
+		}
+		if bucket == "" {
+			return
+		}
+
+		store.dbsLock.Lock()
+		defer store.dbsLock.Unlock()
+
+		tablePathPrefixWithBucket := path.Join(store.tablePathPrefix, bucket)
+		if _, found := store.dbs[bucket]; !found {
+			if err := store.createTable(ctx, tablePathPrefixWithBucket); err == nil {
+				store.dbs[bucket] = true
+				glog.V(4).Infof("created table %s", tablePathPrefixWithBucket)
+			} else {
+				glog.Errorf("createTable %s: %v", tablePathPrefixWithBucket, err)
+			}
+		}
+		tablePathPrefix = &tablePathPrefixWithBucket
+	}
+	return
+}

weed/filer/ydb/ydb_store_kv.go

@@ -0,0 +1,75 @@
+//go:build ydb
+// +build ydb
+
+package ydb
+
+import (
+	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/filer/abstract_sql"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"github.com/ydb-platform/ydb-go-sdk/v3/table"
+	"github.com/ydb-platform/ydb-go-sdk/v3/table/result/named"
+	"github.com/ydb-platform/ydb-go-sdk/v3/table/types"
+)
+
+func (store *YdbStore) KvPut(ctx context.Context, key []byte, value []byte) (err error) {
+	dirStr, dirHash, name := abstract_sql.GenDirAndName(key)
+	fileMeta := FileMeta{dirHash, name, dirStr, value}
+	return store.DB.Table().Do(ctx, func(ctx context.Context, s table.Session) (err error) {
+		_, _, err = s.Execute(ctx, rwTX, *withPragma(&store.tablePathPrefix, upsertQuery),
+			fileMeta.queryParameters(0))
+		if err != nil {
+			return fmt.Errorf("kv put execute %s: %v", util.NewFullPath(dirStr, name).Name(), err)
+		}
+		return nil
+	})
+}
+
+func (store *YdbStore) KvGet(ctx context.Context, key []byte) (value []byte, err error) {
+	dirStr, dirHash, name := abstract_sql.GenDirAndName(key)
+	valueFound := false
+	err = store.DB.Table().Do(ctx, func(ctx context.Context, s table.Session) error {
+		_, res, err := s.Execute(ctx, roTX, *withPragma(&store.tablePathPrefix, findQuery),
+			table.NewQueryParameters(
+				table.ValueParam("$dir_hash", types.Int64Value(dirHash)),
+				table.ValueParam("$name", types.UTF8Value(name))))
+		if err != nil {
+			return fmt.Errorf("kv get execute %s: %v", util.NewFullPath(dirStr, name).Name(), err)
+		}
+		defer func() { _ = res.Close() }()
+		if !res.NextResultSet(ctx) || !res.HasNextRow() {
+			return nil
+		}
+		for res.NextRow() {
+			if err := res.ScanNamed(named.OptionalWithDefault("meta", &value)); err != nil {
+				return fmt.Errorf("scanNamed %s : %v", util.NewFullPath(dirStr, name).Name(), err)
+			}
+			valueFound = true
+			return nil
+		}
+		return res.Err()
+	})
+
+	if !valueFound {
+		return nil, filer.ErrKvNotFound
+	}
+
+	return value, nil
+}
+
+func (store *YdbStore) KvDelete(ctx context.Context, key []byte) (err error) {
+	dirStr, dirHash, name := abstract_sql.GenDirAndName(key)
+	return store.DB.Table().Do(ctx, func(ctx context.Context, s table.Session) (err error) {
+		_, _, err = s.Execute(ctx, rwTX, *withPragma(&store.tablePathPrefix, deleteQuery),
+			table.NewQueryParameters(
+				table.ValueParam("$dir_hash", types.Int64Value(dirHash)),
+				table.ValueParam("$name", types.UTF8Value(name))))
+		if err != nil {
+			return fmt.Errorf("kv delete %s: %v", util.NewFullPath(dirStr, name).Name(), err)
+		}
+		return nil
+	})
+
+}