ES 快照到 S3 并从 Windows 共享目录恢复(qbit)

前言

  • 业务需要将 Elasticsearch 快照到 AWS S3,再将快照拷贝到 Windows 系统,并恢复到 Elasticsearch。如下图所示:

image.png

  • 环境
Elasticsearch 7.10.1
Windows Server 2019
Ubuntu 20.04 (ES 宿主)

ES 集群1 安装 S3 插件

# ll -ah
total 4.6M
drwxr-xr-x 2 qhy qhy 4.0K Mar  9 01:55 ./
drwxr-xr-x 7 qhy qhy 4.0K Mar  9 01:50 ../
-rw-rw-r-- 1 qhy qhy 4.6M Mar  9 01:55 repository-s3-7.10.1.zip
-rw-rw-r-- 1 qhy qhy  154 Mar  9 01:55 repository-s3-7.10.1.zip.sha512

# shasum -a 512 -c repository-s3-7.10.1.zip.sha512 
repository-s3-7.10.1.zip: OK
  • 安装
# /usr/share/elasticsearch/bin/elasticsearch-plugin install file:///home/qhy/es_down/repository-s3-7.10.1.zip
-> Installing file:///home/qhy/es_down/repository-s3-7.10.1.zip
-> Downloading file:///home/qhy/es_down/repository-s3-7.10.1.zip
[=================================================] 100%   
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@     WARNING: plugin requires additional permissions     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
* java.lang.RuntimePermission accessDeclaredMembers
* java.lang.RuntimePermission getClassLoader
* java.lang.reflect.ReflectPermission suppressAccessChecks
* java.net.SocketPermission * connect,resolve
* java.util.PropertyPermission es.allow_insecure_settings read,write
See http://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html
for descriptions of what these permissions allow and the associated risks.

Continue with installation? [y/N]y
-> Installed repository-s3
  • 重启 ES 服务

ES 集群1 添加 KEY

/usr/share/elasticsearch/bin/elasticsearch-keystore list
  • 添加 access_key
/usr/share/elasticsearch/bin/elasticsearch-keystore add s3.client.default.access_key
  • 添加 secret_key
/usr/share/elasticsearch/bin/elasticsearch-keystore add s3.client.default.secret_key
  • 重载配置
POST _nodes/reload_secure_settings

创建 S3 快照仓库

PUT _snapshot/my_s3_repository
{
  "type": "s3",
  "settings": {
    "endpoint": "s3.cn-northwest-1.amazonaws.com.cn",
    "bucket": "zt-hadoop-cn-northwest-1",
    "base_path": "es_snapshot", 
    "max_snapshot_bytes_per_sec": "200mb",  # 调整快照创建的速度,默认 40mb
    "max_restore_bytes_per_sec": "200mb"    # 调整快照恢复的速度,默认无限制
  }
}
  • 查看所有注册的快照仓库
GET _snapshot/_all
  • 调整集群恢复分片速度和并发数
PUT _cluster/settings {
  "transient": {
    "indices.recovery.max_bytes_per_sec": "200mb",  # 默认 40mb
    "cluster.routing.allocation.node_concurrent_recoveries": "5"    # 默认 2
  }
}
  • 查看集群配置(包括默认配置)
GET _cluster/settings?flat_settings&include_defaults

创建快照

PUT /_snapshot/my_s3_repository/snapshot_zt
{
  "indices": "zt_product_doc_index_20210223_3",
  "ignore_unavailable": true,
  "include_global_state": false
}
  • 查看一个my_s3_repository仓库下的所有快照
GET _snapshot/my_s3_repository/_all
  • 查看 snapshot_zt 快照的概要状态
GET _snapshot/my_s3_repository/snapshot_zt
  • 查看 snapshot_zt 快照的详细状态
GET _snapshot/my_s3_repository/snapshot_zt/_status

从 S3 恢复快照

POST /_snapshot/my_s3_repository/snapshot_zt/_restore
{
  "indices": "zt_product_doc_index_20210223_3",
  "index_settings": {
    "index.number_of_replicas": 0
  },
  "rename_pattern": "zt_product_doc_index_20210223_3",
  "rename_replacement": "zt_product_doc_index_20210223_3_restore"
}
  • 增加副本
PUT zt_product_doc_index_20210223_3_restore/_settings
{
  "index.number_of_replicas" : "1"
}

从 Windows 共享目录恢复快照

  • 已将 S3 上的文件拷贝到 Windows 的共享目录,并挂载到 ES 集群2 服务器的 /mnt/winshare 目录
# tree -d /mnt/winshare/
/mnt/winshare/
└── es_snapshot
    └── indices
        └── kM6SVcCrTUGjP-634aDUYg
            ├── 0
            ├── 1
            └── 2
path.repo:
  - /mnt/winshare
  • 创建 Windows 系统的快照仓库
PUT /_snapshot/my_backup
{
  "type": "fs",
  "settings": {
    "location": "/mnt/winshare/es_snapshot"
  }
}
POST /_snapshot/my_backup/snapshot_zt/_restore
{
  "indices": "zt_product_doc_index_20210223_3",
  "index_settings": {
    "index.number_of_replicas": 0
  },
  "rename_pattern": "zt_product_doc_index_20210223_3",
  "rename_replacement": "zt_product_doc_index_20210223_3_smb"
}
  • 增加副本
PUT zt_product_doc_index_20210223_3_smb/_settings
{
  "index.number_of_replicas" : "1"
}
本文出自 qbit snap

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