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elasticsearch备份恢复(单机&集群)

参考:https://www.elastic.co/guide/en/elasticsearch/reference/7.3//modules-snapshots.html#_snapshot

简单记录,留作自用,仅供参考,如有错误,劳烦指正。有些说明简略了,请参考上述链接。

版本:7.3

一、单机:

1、服务器上创建/var/backups文件夹,chmod 777 权限

2、修改elasticsearch.yml文件,添加

path.repo: ["/var/backups"]
           

 3、重启es

 4、创建快照仓库

curl -XPUT "http://127.0.0.1:9200/_snapshot/backups" -H 'Content-Type: application/json' -d '{"type":"fs","settings":{"location":"/var/backups"}}'
           

5、备份

PUT http://127.0.0.1:9200/_snapshot/my_backup/snapshot_1 
           

6、恢复

POST http://127.0.0.1:9200/_snapshot/my_backup/snapshot_1/_restore 
           

7、查看备份信息

GET http://127.0.0.1:9200/_snapshot/my_backup/snapshot_1 
           

8、删除备份

DELETE http://127.0.0.1:9200/_snapshot/my_backup/snapshot_2 
           

二、集群:

1、创建共享文件夹,用作集群备份仓库共享 

mkdir /var/backups
           

  2、master节点

yum install  nfs-utils
           

  3、查看nfs服务状态

systemctl status nfs
           

 4、编辑 vim /etc/exports  ,添加下面路径

 /var/backups/ (insecure,rw) 
           

 5、重新加载共享配置

systemctl reload nfs
showmount -e 127.0.0.1
           

6、配置follow node,本地创建文件夹 /var/backups ,挂载主节点共享目录

mount 127.0.0.1:/var/backups /var/backups
           

7、在主节点/var/ backups目录下创建或者删除文件,测试从节点是否跟随变换

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