# Geo data types support
> 原文:[https://docs.gitlab.com/ee/administration/geo/replication/datatypes.html](https://docs.gitlab.com/ee/administration/geo/replication/datatypes.html)
* [Data types](#data-types)
* [Git repositories](#git-repositories)
* [Blobs](#blobs)
* [Database](#database)
* [Limitations on replication/verification](#limitations-on-replicationverification)
# Geo data types support[](#geo-data-types-support-premium-only "Permalink")
地理數據類型是一個或多個 GitLab 功能存儲相關信息所需的特定數據類別.
要使用 Geo 復制這些功能生成的數據,我們使用幾種策略來訪問,傳輸和驗證它們.
## Data types[](#data-types "Permalink")
當前,我們區分三種不同的數據類型:
* [Git repositories](#git-repositories)
* [Blobs](#blobs)
* [Database](#database)
請參閱下面列出的我們復制的每個功能或組件,其對應的數據類型,復制和驗證方法的列表:
| Type | 功能/組件 | 復制方式 | 驗證方式 |
| --- | --- | --- | --- |
| Database | PostgreSQL 中的應用程序數據 | Native | Native |
| Database | Redis | *N/A* (*1*) | *N/A* |
| Database | Elasticsearch | Native | Native |
| Database | 個人摘要 | PostgreSQL 復制 | PostgreSQL 復制 |
| Database | 項目摘要 | PostgreSQL 復制 | PostgreSQL 復制 |
| Database | SSH 公鑰 | PostgreSQL 復制 | PostgreSQL 復制 |
| Git | 項目資料庫 | 地理與吉塔利 | Gitaly 校驗和 |
| Git | 項目 Wiki 資料庫 | 地理與吉塔利 | Gitaly 校驗和 |
| Git | 項目設計資料庫 | 地理與吉塔利 | Gitaly 校驗和 |
| Git | 用于分支項目重復數據刪除的對象池 | 地理與吉塔利 | *未實現* |
| Blobs | User uploads *(filesystem)* | 帶有 API 的地理位置 | *未實現* |
| Blobs | 用戶上傳*(對象存儲)* | 具有 API /托管的地理區域( *2* ) | *未實現* |
| Blobs | LFS 對象*(文件系統)* | 帶有 API 的地理位置 | *未實現* |
| Blobs | LFS 對象*(對象存儲)* | 具有 API /托管的地理區域( *2* ) | *未實現* |
| Blobs | CI 作業工件*(文件系統)* | 帶有 API 的地理位置 | *未實現* |
| Blobs | CI 作業工件*(對象存儲)* | 具有 API /托管的地理區域( *2* ) | *未實現* |
| Blobs | 歸檔的 CI 構建跟蹤*(文件系統)* | 帶有 API 的地理位置 | *未實現* |
| Blobs | 歸檔的 CI 構建跟蹤*(對象存儲)* | 具有 API /托管的地理區域( *2* ) | *未實現* |
| Blobs | 容器注冊表*(文件系統)* | 使用 API?? / Docker API 進行地理定位 | *未實現* |
| Blobs | 容器注冊表*(對象存儲)* | 帶有 API / Managed / Docker API 的 Geo( *2* ) | *未實現* |
| Blobs | 程序包注冊表*(文件系統)* | 帶有 API 的地理位置 | *未實現* |
| Blobs | 程序包注冊表*(對象存儲)* | 具有 API /托管的地理區域( *2* ) | *未實現* |
* ( *1* ):Redis 復制可與 Redis 前哨一起用作 HA 的一部分. 在地理節點之間不使用它.
* ( *2* ):對象存儲復制可以通過 Geo 或您的對象存儲提供者/設備本機復制功能來執行.
### Git repositories[](#git-repositories "Permalink")
一個 GitLab 實例可以具有一個或多個存儲庫分片. 每個分片都有一個 Gitaly 實例,該實例負責允許對本地存儲的 Git 存儲庫進行訪問和操作. 它可以在具有單個磁盤,作為單個安裝點安裝多個磁盤(如 RAID 陣列)或使用 LVM 的計算機上運行.
它不需要特殊的文件系統,并且可以與 NFS 或已安裝的 Storage Appliance 一起使用(使用遠程文件系統時可能會有性能限制).
通過 Gitaly 自己的 gRPC API 完成通信. 有三種可能的同步方式:
* 使用常規的 Git 從一個 Geo 節點到另一個 Geo 節點的克隆/獲取(具有特殊身份驗證).
* 使用存儲庫快照(用于第一種方法失敗或存儲庫損壞時).
* 從管理界面手動觸發(上述兩者的組合).
每個項目最多可以有 3 個不同的存儲庫:
* 一個項目存儲庫,其中存儲了源代碼.
* Wiki 存儲庫,用于存儲 Wiki 內容.
* 一個設計庫,在其中對設計工件進行索引(資產實際上在 LFS 中).
他們都住在同一個碎片,并用共享相同的基礎名稱`-wiki`和`-design`用于 Wiki 以及設計資源庫的情況下后綴.
### Blobs[](#blobs "Permalink")
GitLab 將文件和 Blob(例如 Issue 附件或 LFS 對象)存儲到以下任一位置:
* 特定位置的文件系統.
* [對象存儲](../../object_storage.html)解決方案. 對象存儲解決方案可以是:
* 像 Amazon S3 Google Cloud Storage 一樣基于云.
* 由您托管(如 MinIO).
* 公開與對象存儲兼容的 API 的存儲設備.
當使用文件系統存儲而不是對象存儲時,如果使用多個服務器,則需要使用網絡安裝的文件系統來運行 GitLab.
關于復制和驗證:
* 我們使用內部 API 請求傳輸文件和 Blob.
* 使用對象存儲,您可以:
* 使用云提供程序復制功能.
* 讓 GitLab 為您復制它.
### Database[](#database "Permalink")
對于不同的用例,GitLab 依賴于存儲在多個數據庫中的數據. PostgreSQL 是 Web 界面中用戶生成的內容(例如問題內容,??注釋以及權限和憑據)的唯一事實.
PostgreSQL 還可以保存某種程度的緩存數據,例如 HTML 呈現的 Markdown,緩存的合并請求差異(也可以配置為卸載到對象存儲中).
我們使用 PostgreSQL 自己的復制功能將數據從**主**節點復制到**輔助**節點.
我們將 Redis 用作緩存存儲并為我們的后臺作業系統保留持久性數據. 由于這兩個用例都具有同一地理節點專有的數據,因此我們不在節點之間復制它.
Elasticsearch 是一個可選數據庫,可以啟用高級搜索功能,例如源代碼級別的改進的全局搜索以及"問題/合并請求"和討論中用戶生成的內容. 目前,Geo 不支持此功能.
## Limitations on replication/verification[](#limitations-on-replicationverification "Permalink")
下表列出了 GitLab 功能及其在**輔助**節點上的復制和驗證狀態.
您可以跟蹤實現這些史詩/問題中缺少的項目的進度:
* [Unreplicated Data Types](https://gitlab.com/groups/gitlab-org/-/epics/893)
* [Verify all replicated data](https://gitlab.com/groups/gitlab-org/-/epics/1430)
**危險:**不在此列表上或"已**復制"**列中具有" **否"的**功能不會在**輔助**節點上復制. 如果不從這些功能中手動復制數據而進行故障轉移,將導致數據**丟失** . 如果希望在**輔助**節點上使用這些功能或成功執行故障轉移,則必須使用其他方法復制它們的數據.
| Feature | 復制(在 GitLab 版本中添加) | 已驗證(在 GitLab 版本中添加) | Notes | ? |
| --- | --- | --- | --- | --- |
| PostgreSQL 中的應用程序數據 | **Yes** (10.2) | **Yes** (10.2) | ? | ? |
| 項目資料庫 | **Yes** (10.2) | **Yes** (10.7) | ? | ? |
| 項目 Wiki 資料庫 | **Yes** (10.2) | **Yes** (10.7) | ? | ? |
| 項目設計資料庫 | **Yes** (12.7) | [No](https://gitlab.com/gitlab-org/gitlab/-/issues/32467) | ? | ? |
| Uploads | **Yes** (10.2) | [No](https://gitlab.com/groups/gitlab-org/-/epics/1817) | 僅在轉移時驗證,或手動驗證( *1* ) | ? |
| LFS 對象 | **Yes** (10.2) | [No](https://gitlab.com/gitlab-org/gitlab/-/issues/8922) | 僅在轉移時驗證,或手動驗證( *1* ). 在 11.11.x 和 12.0.x( *2* )中的新 LFS 對象不可用. | ? |
| CI 作業工件(痕跡除外) | **Yes** (10.4) | [No](https://gitlab.com/gitlab-org/gitlab/-/issues/8923) | 僅手動驗證( *1* ) | ? |
| 存檔的痕跡 | **Yes** (10.4) | [No](https://gitlab.com/gitlab-org/gitlab/-/issues/8923) | 僅在轉移時驗證,或手動驗證( *1* ) | ? |
| 個人摘要 | **Yes** (10.2) | **Yes** (10.2) | ? | ? |
| [Versioned snippets](../../../user/snippets.html#versioned-snippets) | [No](https://gitlab.com/groups/gitlab-org/-/epics/2809) | [No](https://gitlab.com/groups/gitlab-org/-/epics/2810) | ? | ? |
| 項目摘要 | **Yes** (10.2) | **Yes** (10.2) | ? | ? |
| 用于分支項目重復數據刪除的對象池 | **Yes** | No | ? | ? |
| [Server-side Git hooks](../../server_hooks.html) | No | No | ? | ? |
| [Elasticsearch integration](../../../integration/elasticsearch.html) | [No](https://gitlab.com/gitlab-org/gitlab/-/issues/1186) | No | ? | ? |
| [GitLab Pages](../../pages/index.html) | [No](https://gitlab.com/groups/gitlab-org/-/epics/589) | No | ? | ? |
| [Container Registry](../../packages/container_registry.html) | **Yes** (12.3) | No | ? | ? |
| [NPM Registry](../../../user/packages/npm_registry/index.html) | **Yes** (13.2) | No | ? | ? |
| [Maven Repository](../../../user/packages/maven_repository/index.html) | **Yes** (13.2) | No | ? | ? |
| [Conan Repository](../../../user/packages/conan_repository/index.html) | **Yes** (13.2) | No | ? | ? |
| [NuGet Repository](../../../user/packages/nuget_repository/index.html) | **Yes** (13.2) | No | ? | ? |
| [PyPi Repository](../../../user/packages/pypi_repository/index.html) | **Yes** (13.2) | No | ? | ? |
| [Composer Repository](../../../user/packages/composer_repository/index.html) | **Yes** (13.2) | No | ? | ? |
| [External merge request diffs](../../merge_request_diffs.html) | [No](https://gitlab.com/gitlab-org/gitlab/-/issues/33817) | No | ? | ? |
| [Terraform State](../../terraform_state.html) | [No](https://gitlab.com/groups/gitlab-org/-/epics/3112)(*3*) | No | ? | ? |
| [Vulnerability Export](../../../user/application_security/security_dashboard/#export-vulnerabilities) | [No](https://gitlab.com/groups/gitlab-org/-/epics/3111)(*3*) | No | ? | ? |
| 對象存儲中的內容 | **Yes** (12.4) | No | ? | ? |
* ( *1* ):可以使用兩個節點上的[完整性檢查瑞克任務](../../raketasks/check.html)并比較它們之間的輸出來手動驗證[完整性](../../raketasks/check.html) .
* ( *2* ):GitLab 版本 11.11.x 和 12.0.x 受到[一個錯誤的](https://gitlab.com/gitlab-org/gitlab/-/issues/32696)影響, [該錯誤阻止了任何新的 LFS 對象的復制](https://gitlab.com/gitlab-org/gitlab/-/issues/32696) .
* ( *3* ):如果使用的是對象存儲,則可以通過對象存儲提供程序執行復制(如果支持). 請參閱[帶有對象存儲的地理位置](object_storage.html)
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