es集群备份索引
时间: 2023-06-28 11:03:47 浏览: 102
在 Elasticsearch 中,可以使用 Snapshot API 对集群进行备份和恢复。以下是备份索引的步骤:
1. 创建一个仓库来存储快照,可以选择本地文件系统或者远程的云存储服务(如 Amazon S3)作为仓库。
```
PUT /_snapshot/my_backup
{
"type": "fs",
"settings": {
"location": "/path/to/my/backup/location"
}
}
```
2. 对要备份的索引执行快照操作,指定要备份的索引和仓库名称。可以使用 `wait_for_completion=true` 参数等待备份完成。
```
PUT /_snapshot/my_backup/snapshot_1?wait_for_completion=true
{
"indices": "index_1,index_2",
"ignore_unavailable": true,
"include_global_state": false
}
```
3. 如果备份成功,可以列出在仓库中可用的快照。
```
GET /_snapshot/my_backup/_all
```
4. 要恢复索引,需要在新的 Elasticsearch 集群上创建一个仓库,并且将快照复制到该仓库中。然后,可以从快照中恢复索引。
```
PUT /_snapshot/my_new_backup
{
"type": "fs",
"settings": {
"location": "/path/to/my/new/backup/location"
}
}
POST /_snapshot/my_new_backup/snapshot_1/_restore
{
"indices": "index_1,index_2",
"ignore_unavailable": true,
"include_global_state": false
}
```
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