ES备份(单机)

ccj 4/2/2020 ElasticSearch

摘要

version：6.5.4

# 一：快照

ElasticSearch提供了snapshot功能，首先需要编辑 config/elasticsearch.yml 文件增加备份库存的位置。比如 path.repo: /home/backup/es

创建repo

[root@ccj ~]# curl -XPUT 'http://localhost:9200/_snapshot/my_repository' -d '
{
    "type": "fs",
    "settings": {
        "location": "/home/backup/es/my_repository",
        "compress": true
    }
}'

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建立repo

创建snapshot

对索引ccj_test创建快照

[root@localhost elasticsearch-6.5.4]# curl -XPUT 'http://localhost:9200/_snapshot/my_repository/snap_1?wait_for_completion=true' -H 'Content-Type: application/json' -d '
{
    "indices": "ccj_test",
    "ignore_unavailable": "true",
    "include_global_state": false
}'

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创建snapshot

wait_for_completion 参数表示会等到snapshot完成才返回，不加这个参数也可以通过其他接口获取到快照的进度

[root@localhost elasticsearch-6.5.4]# curl -XGET "http://localhost:9200/_snapshot/my_repository/snap_1/_status?pretty"

快照进度

查看snapshot

[root@ccj ~]# curl -XGET 'http://localhost:9200/_snapshot/my_repository/snap_1?pretty'

查看snapshot

查看所有snapshot

[root@ccj ~]# curl -XGET 'http://localhost:9200/_snapshot/my_repository/snap_1?pretty'

查看所有snapshot

删除某个快照

[root@ccj ~]# curl -XGET 'http://localhost:9200/_snapshot/my_repository/snap_1?pretty'

删除快照

删除所有快照

删除操作还可以终止一个正在进行的快照备份

[root@ccj ~]# curl -XGET 'http://localhost:9200/_snapshot/my_repository?pretty'

删除快照

恢复snapshot

[root@ccj ~]# curl -XPOST 'http://localhost:9200/_snapshot/my_repository/snap_1/_restore?wait_for_completion=true&pretty' -H 'Content-Type: application/json' -d '
{
    "indices": "ccj_test",
    "ignore_unavailable": "true",
    "include_global_state": false,
    "rename_pattern": "ccj_test",
    "rename_replacement": "restore_ccj_test"
}'

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恢复snapshot

参数 rename_pattern 和 rename_replacement 用来正则匹配要恢复的索引，并且重命名。下面的例子：test-index => copy_index, test_2 => coyp_2

[root@ccj ~]# curl -XPOST "http://localhost:9200/_snapshot/my_repository/snap_1/_restore?wait_for_completion=true&pretty" -H 'Content-Type: application/json' -d '
{
    "indices": "test-index,test-2",
    "ignore_unavailable": "true",
    "include_global_state": false,
    "rename_pattern": "test-(.+)",
    "rename_replacement": "copy_$1"
}'

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# 二：报错解决

错误1 错误1

解决方法

elasticsearch账号没有改目录权限，分配相关权限

[root@ccj ~]# sudo chown -R elasticsearch:elasticsearch /home/backup/

湫枫染墨

ES备份(单机)

ES备份(单机)

# 一：快照

# 二：报错解决