本文主要是介绍ES升级--05--快照生成 和备份，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
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文章目录
- 备份ES数据
- 1.关闭集群自动均衡
- 2.执行同步刷新
- 3.停止集群节点的Elasticsearch服务
- 4.修改Elasticsearch配置文件，开启快照功能，配置仓库目录为共享存储
- 5.重启集群节点的Elasticsearch服务
- 6.通开启集群分片重建、恢复集群写入配置
- 7.注册快照存储
- 8.执行快照
- 9.查看快照执行情况
- 10 删除多余快照
- 恢复数据 ----环境es7.9
- 1.将备份数据复制到新版es目录
- 传输用rsync
- 检查文件夹和权限
- 2.elasticsearch.yml 配置
- 3.重新启动es服务
- 4.注册备份仓库
- 5.恢复数据
- 可以制定恢复索引
- 如果出现索引重复 导致报错
- 4. 验证
备份ES数据
1.关闭集群自动均衡
有密码加上 -u ‘elastic:escdms’
curl -XPUT "http://192.168.2.89:9200/_cluster/settings?pretty" -H 'Content-Type:application/json' -d '{"persistent": {"cluster.blocks.read_only": true,"cluster.routing.rebalance.enable": "none"},"transient": {"cluster.blocks.read_only": true,"cluster.routing.rebalance.enable": "none"}
}'
curl命令可以在kibana平台替换为如下命令：
PUT /_cluster/settings
{"persistent": {"cluster.blocks.read_only": true,"cluster.routing.rebalance.enable": "none"},"transient": {"cluster.blocks.read_only": true,"cluster.routing.rebalance.enable": "none"}
}
2.执行同步刷新
curl -X POST "http://192.168.2.89:9200/_flush/synced"
POST /_flush/synced
3.停止集群节点的Elasticsearch服务
ps aux | grep elasticsearch
kill -9 xxxxxx
pkill -f elasticsearch
4.修改Elasticsearch配置文件，开启快照功能，配置仓库目录为共享存储
如果没有这个
# 设置备份路径
path.repo: ["/home/data/elastic-6.3.2/mybackup"]
5.重启集群节点的Elasticsearch服务
bin/elasticsearch -d
6.通开启集群分片重建、恢复集群写入配置
先执行
curl -XPUT -H "Content-Type: application/json" http://localhost:9200/_cluster/settings -d '{"persistent": {"cluster.blocks.read_only": false}
}'后执行
curl -XPUT "http://192.168.2.89:9200/_cluster/settings?pretty" -H 'Content-Type: application/json' -d '{"persistent": {"cluster.blocks.read_only": false,"cluster.routing.rebalance.enable": "ALL"},"transient": {"cluster.blocks.read_only": false,"cluster.routing.rebalance.enable": "ALL"}
}'
PUT /_cluster/settings
{"persistent": {"cluster.blocks.read_only": false,"cluster.routing.rebalance.enable": "ALL"},"transient": {"cluster.blocks.read_only": false,"cluster.routing.rebalance.enable": "ALL"}
}
7.注册快照存储
- 通过http提交注册快照存储，需指定到快照仓库目录下
curl -X PUT "http://192.168.2.89:9200/_snapshot/mybackup" -H 'Content-Type: application/json' -d'
{"type": "fs","settings": {"location": "/home/data/elastic-6.3.2/mybackup"}
}'
8.执行快照
- IaaS环境执行生成快照，通过http提交，第一次为全量，后面再执行则为增量
curl -XPUT "http://192.168.2.89:9200/_snapshot/mybackup/snapshot_20240606?wait_for_completion=true" -H 'Content-Type: application/json' -d '{"ignore_unavailable": true,"include_global_state": true
}'
也可以选定某个索引
curl -XPUT "http://192.168.2.54:9200/_snapshot/my_backup/snapshot_20240607?wait_for_completion=true" -H 'Content-Type: application/json' -d '{"indices": "cbsp_appform_index","ignore_unavailable": true,"include_global_state": true
}'
9.查看快照执行情况
有密码加上 -u ‘elastic:escdms’
curl -X GET "http://192.168.2.89:9200/_snapshot/mybackup/_all"
GET _snapshot/mybackup/_all
10 删除多余快照
- 查看所有快照仓库
GET _snapshot/_all
- 查看此仓库的快照情况
GET _snapshot/my_backup/_all
- 删除之前的有的快照
curl -X DELETE "localhost:9200/_snapshot/<repository_name>/*"
DELETE /_snapshot/<repository_name>/*
恢复数据 ----环境es7.9
1.将备份数据复制到新版es目录
- app账号登录新环境，将备份数据复制到新版es目录
传输用rsync
安装命令
sudo yum install rsync
传输命令 ：账号 root ，会弹窗口要求输入密码
rsync -avz /home/data/elastic-6.3.2/es_bak root@192.168.2.79:/home/es/
检查文件夹和权限
等待传输完成 查看文件夹
/data/es/mybackup
- 注意文件夹和权限问题
- 注意权限
chown -R es:es /data/es
2.elasticsearch.yml 配置
path.repo: ["/data/es/mybackup"]
3.重新启动es服务
bin/elasticsearch -d
4.注册备份仓库
curl -XPUT "http://192.168.2.79:9200/_snapshot/mybackup" -H 'Content-Type: application/json' -d '{"type": "fs","settings": {"location": "/data/es/mybackup"}
}'
5.恢复数据
- mybackup ：备份仓库
- snapshot_20240607：快照版本
curl -XPOST "http://192.168.2.79:9200/_snapshot/mybackup/snapshot_20240607/_restore" -H 'Content-Type: application/json' -d '{"ignore_unavailable": true,"include_global_state": true
}'
可以制定恢复索引
curl -XPOST "http://192.168.2.89:9200/_snapshot/mybackup/snapshot_20240606/_restore" -H 'Content-Type: application/json' -d '{"indices": "laas_*","ignore_unavailable": true,"include_global_state": true
}'
如果出现索引重复 导致报错
curl -XPOST "http://192.168.2.89:9200/_snapshot/mybackup/snapshot_20240606/_restore" -H 'Content-Type: application/json' -d '{"ignore_unavailable": true,"include_global_state": true,"rename_pattern": ".monitoring-es-6-2024.06.06","rename_replacement": "restored_monitoring_es"
}'
4. 验证
http://192.168.2.79:9200/_cat/indices?v
http://192.168.2.79:9200/cbsp_appform_index/_count
http://192.168.2.79:9200/cbsp_appform_index/_search?q=:&pretty
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