前提

如果你想使用快照和存储，你必须设置path.repo。

vi elasticsearch.yml
path.repo: ["/usr/share/elasticsearch/backup"]

然后重启elasticsearch使生效

存储

创建存储

• 存储名称：datasvr
• 存储路径：/usr/share/elasticsearch/backup
• max_restore_bytes_per_sec：40M
• max_snapshot_bytes_per_sec：40M
• 是否压缩compress：是

  curl -H "Content-Type: application/json" -XPUT 'http://localhost:9200/_snapshot/datasvr' -d ' {"type":"fs","settings":{"location":"/usr/share/elasticsearch/backup","compress":true}}'

浏览器中查看存储信息

http://localhost:9200/_snapshot/datasvr/

删除存储

• 存储名称：datasvr

仓库被注销时，ElasticSearch 只删除仓库存储快照的引用位置，快照本身没有被删除并且在原来的位置

curl -X DELETE "http://localhost:9200/_snapshot/datasvr"

快照

快照是基于存储的，一个存储下面可以创建多个快照

创建快照(备份索引)

• 存储名称：datasvr
• 快照名称：snapshot_1

备份指定索引
curl -H "Content-Type:application/json" -XPUT 'http://localhost:9200/_snapshot/datasvr/snapshot_1' -d '{"indices": "article"}'

备份全部索引
curl -H "Content-Type:application/json" -XPUT 'http://localhost:9200/_snapshot/datasvr/snapshot_1'

查看仓库存储的所有快照

浏览器中查看备份仓库所有快照信息
http://localhost:9200/_snapshot/datasvr/_all

浏览器中查看备份仓库某个快照信息
http://localhost:9200/_snapshot/datasvr/snapshot_1

删除快照

curl -X DELETE "http://localhost:9200/_snapshot/datasvr/snapshot_1"

恢复快照

恢复全部
curl -H "Content-Type:application/json" -XPOST 'http://localhost:9200/_snapshot/datasvr/snapshot_1/_restore'

恢复指定索引
curl -H "Content-Type:application/json" -XPOST 'http://localhost:9200/_snapshot/datasvr/snapshot_1/_restore' -d '{"indices": "article"}'

https://www.elastic.co/guide/en/elasticsearch/reference/7.17/snapshot-restore.html