ES數據備份到HDFS

1.准備好HDFS（這里我是本機測試）

 

2.es 安裝repository-hdfs插件

（如es為多節點需在每個節點都安裝插件）

 

 

elasticsearch-plugin install repository-hdfs

3. 重啟ES

 

4.創建快照倉庫

PUT /_snapshot/backup_hdfs

{
  "type": "hdfs",
  "settings": {
    "uri": "hdfs://localhost:8020/",
    "path": "elasticsearch/respositories/my_hdfs_repository",
    "conf.dfs.client.read.shortcircuit": "true"
  }
}

5.查看快照倉庫

GET /_snapshot/_all

6.創建快照

PUT /_snapshot/backup_hdfs/snapshot_1

{
  "indices": "logstash-2018-08-08,index_2",//注意不設置這個屬性，默認是備份所有
  "ignore_unavailable": true,
  "include_global_state": false
}

7.恢復快照

POST /_snapshot/backup_hdfs/snapshot_1/_restore

{
  "indices": "zhangmingli", //指定索引恢復，不指定就是所有
  "ignore_unavailable": true,//忽略恢復時異常索引
  "include_global_state": false//是否存儲全局轉態信息,fasle代表有一個或幾個失敗，不會導致整個任務失敗
}

8.刪除快照

DELETE /_snapshot/backup_hdfs/snapshot_1