【玩转腾讯云】通过COS快照从自建ES迁移至腾讯云最佳实践

1、场景介绍

在腾讯云同一个VPC内使用3台CVM部署自建ES集群,可以通过给自建Elasticsearch打快照存储到COS,在利用COS中的快照进行数据库恢复,将自建Elasticsearch数据迁移至腾讯云Elasticsearch。

2、实施步骤

2.1、编译elasticsearch-repository-cos插件

把源码clone下来,源码地址:https://github.com/tencentyun/elasticsearch-repository-cos,切换到相应的分支,执行编译。

注意:插件版本需要和ES版本保持一致。

1) 7.x 之前的版本,执行mvn package编译

mvn clean package

2) 7.x 之后的版本,使用gradle编译

gradle build

2.2、在自建ES集群上安装elasticsearch-repository-cos插件

编译完成之后,下载target/release/目录下的zip包到ES集群各节点Elasticsearch根目录下的plugins目录,执行插件安装。

#执行插件安装/$your_elasticsearch_dir/bin/elasticsearch-plugin install file:///$you_plugin_path/elasticsearch-cos-x.x.zip

2.3、创建COS用于备份恢复的bucket

注意:创建与自建ES集群在同一个region的标准存储类型COS。

创建bucket地址:https://console.cloud.tencent.com/cos5/bucket

2.4、在自建源ES集群上创建仓库

1) 在自建ES上创建仓库:

PUT _snapshot/my_cos_backup{    "type": "cos",    "settings": {        "app_id": "xxx",        "access_key_id": "xxx",        "access_key_secret": "xxx",        "bucket": "vicwan1",        "region": "ap-shanghai",        "compress": true,        "chunk_size": "500mb",        "base_path": "/"    }}

Ø bucket: COS Bucket 名字,新版COS Bucket名字会带-{appId}后缀。

Ø region:COS Bucket 地域,建议与 ES 集群同地域。

Ø base_path:备份目录,形式如dir1/dir2/dir3,不需要写最开头的’/‘。

Ø app_id: 腾讯云账号 APPID,将在6.8之后的版本废弃,app_id 已包含在bucket参数中。

2) 获取仓库信息:

# GET /_snapshot/my_cos_backup?pretty{  "my_cos_backup" : {    "type" : "cos",    "settings" : {      "access_key_id" : "xxx",      "bucket" : "vicwan1",      "chunk_size" : "500mb",      "compress" : "true",      "access_key_secret" : "xxx",      "base_path" : "/",      "region" : "ap-shanghai",      "app_id" : "xxx"    }  }}

2.5、在自建源ES集群中创建 snapshot

1) 指定索引product_info,product_info,china备份到指定仓库,创建快照并命名为

snapshot_1:

PUT \_snapshot/my\_cos\_backup/snapshot\_1{ "indices": "product\_info1,product\_info,china"}

2) 获得snapshot_1快照信息,包括了product_info,product_info,china三个索引:

# GET /_snapshot/my_cos_backup/snapshot_1{  "snapshots" : [    {      "snapshot" : "snapshot_1",      "uuid" : "CeUrjM7nT7SbzW_q3pHJNw",      "version_id" : 7050199,      "version" : "7.5.1",      "indices" : [        "product_info1",        "product_info",        "china"      ],      "include_global_state" : true,      "state" : "SUCCESS",      "start_time" : "2020-03-26T02:49:44.792Z",      "start_time_in_millis" : 1585190984792,      "end_time" : "2020-03-26T02:49:45.992Z",      "end_time_in_millis" : 1585190985992,      "duration_in_millis" : 1200,      "failures" : [ ],      "shards" : {        "total" : 3,        "failed" : 0,        "successful" : 3      }    }  ]}

2.6、目标 ES 集群中创建 repository

在目标 ES 集群中创建仓库和在源 ES 集群中创建仓库类似:

PUT _snapshot/my_cos_backup{    "type": "cos",    "settings": {        "app_id": "xxx",        "access_key_id": "xxx",        "access_key_secret": "xxx",        "bucket": "xxx",        "region": "ap-shanghai",        "compress": true,        "chunk_size": "500mb",        "base_path": "/"    }}

2.7、移动源 ES 集群 snapshot 至目标 ES 集群的仓库

把自建源ES集群创建好的 snapshot 上传至目标 ES 集群创建好的仓库中。

注意:如果自建源集群和腾讯云目标ES集群仓库用的是同一个bucket,则不需要这一步移动操作。

2.8、在目标ES集群执行从快照恢复

在目标腾讯云ES集群上执行快照恢复,会把snapshot_1快照里的备份的所有索引都恢复到当前ES集群中。

POST _snapshot/my_cos_backup/snapshot_1/_restore

2.9、在目标ES集群查看恢复效果

1) 通过执行_recovery命令,可以查看快照china恢复的状态,监控快照恢复的进度。

# GET /china/_recovery{  "china" : {    "shards" : [      {        "id" : 0,        "type" : "PEER",        "stage" : "DONE",        "primary" : false,        "start_time_in_millis" : 1585193443811,        "stop_time_in_millis" : 1585193443930,        "total_time_in_millis" : 119,        "source" : {          "id" : "YZYEt4shQvKR-rRyHww_iQ",          "host" : "9.20.51.55",          "transport_address" : "9.20.51.55:22298",          "ip" : "9.20.51.55",          "name" : "1583809177000048032"        },        "target" : {          "id" : "_dqCSAxqS8uhBRV5XoBukw",          "host" : "9.20.37.10",          "transport_address" : "9.20.37.10:26349",          "ip" : "9.20.37.10",          "name" : "1583809177000047832"        },        "index" : {          "size" : {            "total_in_bytes" : 6702,            "reused_in_bytes" : 0,            "recovered_in_bytes" : 6702,            "percent" : "100.0%"          },          "files" : {            "total" : 4,            "reused" : 0,            "recovered" : 4,            "percent" : "100.0%"          },          "total_time_in_millis" : 53,          "source_throttle_time_in_millis" : 0,          "target_throttle_time_in_millis" : 0        },        "translog" : {          "recovered" : 0,          "total" : 0,          "percent" : "100.0%",          "total_on_start" : 0,          "total_time_in_millis" : 49        },        "verify_index" : {          "check_index_time_in_millis" : 0,          "total_time_in_millis" : 0        }      },      {        "id" : 0,        "type" : "SNAPSHOT",        "stage" : "DONE",        "primary" : true,        "start_time_in_millis" : 1585193443256,        "stop_time_in_millis" : 1585193443738,        "total_time_in_millis" : 482,        "source" : {          "repository" : "my_cos_backup",          "snapshot" : "snapshot_1",          "version" : "7.5.1",          "index" : "china",          "restoreUUID" : "TMDLqnfLQxOKhiaccu_8gw"        },        "target" : {          "id" : "YZYEt4shQvKR-rRyHww_iQ",          "host" : "9.20.51.55",          "transport_address" : "9.20.51.55:22298",          "ip" : "9.20.51.55",          "name" : "1583809177000048032"        },        "index" : {          "size" : {            "total_in_bytes" : 6704,            "reused_in_bytes" : 0,            "recovered_in_bytes" : 6704,            "percent" : "100.0%"          },          "files" : {            "total" : 4,            "reused" : 0,            "recovered" : 4,            "percent" : "100.0%"          },          "total_time_in_millis" : 462,          "source_throttle_time_in_millis" : 0,          "target_throttle_time_in_millis" : 0        },        "translog" : {          "recovered" : 0,          "total" : 0,          "percent" : "100.0%",          "total_on_start" : 0,          "total_time_in_millis" : 13        },        "verify_index" : {          "check_index_time_in_millis" : 0,          "total_time_in_millis" : 0        }      }    ]  }}

2) 也可以通过GET _cat/indices看到已经恢复的product_info,product_info,china三

个索引。

# GET _cat/indicesgreen open .triggered_watches              kUS9rh35RqigHHouryvqVA 1 1      0 17280  11.1mb   1.7mbgreen open .watcher-history-10-2020.03.23  1EtU6m6dRjGjfv46uv5e-A 1 1   8640     0  20.7mb  10.4mbgreen open .watcher-history-10-2020.03.24  Ys2seFP8SDaOQvIGLF9bvA 1 1   8640     0  20.8mb  10.4mbgreen open .watcher-history-10-2020.03.25  o0DXSBs0TC2pcPlaUDxY8g 1 1   8640     0  20.7mb  10.4mbgreen open .watcher-history-10-2020.03.26  DRJtzBksRU69XGOhiPvZvQ 1 1   1074     0   2.8mb   1.3mbgreen open product_info                    fQR8MeW7SB-f9RIzdxKvIA 1 1      6     0  14.3kb   7.1kbgreen open .kibana_task_manager_1          OFDRGDP6R2iJ0USLxiVVVQ 1 1      2     1    52kb    26kbgreen open .watcher-history-10-2020.03.20  is3B6fciRpCZjhSpB5jQUQ 1 1   8640     0  20.7mb  10.3mbgreen open .watcher-history-10-2020.03.21  q9tQf3PARQa3qbWmoIUiBg 1 1   8640     0  20.8mb  10.4mbgreen open .watcher-history-10-2020.03.22  VltO9hkBRui_W1zJ4G-gog 1 1   8640     0  20.7mb  10.3mbgreen open .watches                        9IRnsMTlTjWPvO7UTlUEBg 1 1      6  7842 170.2mb  18.1mbgreen open .monitoring-kibana-7-2020.03.21 bQkHgXTGR6u0-dULOTbjJg 1 1  17279     0   7.8mb   3.9mbgreen open .monitoring-kibana-7-2020.03.22 TKdSnk-OQn2G83F-jIOuUw 1 1  17280     0   7.8mb   3.9mbgreen open .monitoring-kibana-7-2020.03.23 6jlabJy6TF2vX64C_IJa-Q 1 1  17279     0   7.7mb   3.8mbgreen open .monitoring-kibana-7-2020.03.24 aHLoKJ1aRxKr2miXWQfd5g 1 1  17279     0   7.8mb   3.9mbgreen open .monitoring-es-7-2020.03.25     HDtgSeBISCWfPGmi2x-2JA 1 1 341069     0 389.1mb 194.4mbgreen open .monitoring-es-7-2020.03.26     5qqnHxLDRXSOVnbSkZP5wA 1 1  42778 61156  61.5mb  30.7mbgreen open .monitoring-es-7-2020.03.23     Ifkj6UVtSiev1ZTi0iWiFg 1 1 338254     0 385.1mb 192.5mbgreen open .monitoring-kibana-7-2020.03.20 H2Jto6qzRZ2NMcTMPXaeRA 1 1  17280     0   7.7mb   3.8mbgreen open .monitoring-es-7-2020.03.24     zCR1AgKCSPewbjb4GEygcw 1 1 343942     0 391.5mb 195.7mbgreen open .apm-agent-configuration        bU2nhRYaRNabz4qHm5ki0Q 1 1      0     0    566b    283bgreen open .monitoring-es-7-2020.03.21     10sl5X5jSaGSWj3YwXGHKg 1 1 338253     0 384.2mb 192.2mbgreen open .monitoring-es-7-2020.03.22     bMbsktTBTjWYVZ0xXi2XZA 1 1 338254     0 385.8mb   193mbgreen open .monitoring-es-7-2020.03.20     Od-u7vcTSGCDmiQ5RR0jcQ 1 1 338254     0 384.3mb 192.1mbgreen open .monitoring-kibana-7-2020.03.25 3uDDj29VQRWA2sDrX_dwIA 1 1  17280     0   7.8mb   3.9mbgreen open .kibana_1                       lmoFP20KQfe7aH2_grOMGA 1 1      6     0  15.9kb   7.9kbgreen open .monitoring-kibana-7-2020.03.26 ppiG3vIeQTmhYEVIZgpvww 1 1   2138     0   1.1mb 602.5kbgreen open .security-7                     Krmy_ufbS1CKLVIwUWLrww 1 1     36     0 128.3kb  63.8kbgreen open china                           u86DmfuVTgaGm-hC6Y7rrg 1 1      2     0    13kb   6.5kbgreen open product_info1                   QoYLdvBYS9GFjHHaRxN6Tg 1 1      6     0    14kb     7kb

2.10、常见问题

1) 提示找不到bucket? 6.x版本中,COS的bucket名中已经包括了appid,如果使

用形如buceket1-11212121的bucket名,请不要再传递appid参数。如使用早期不包含appid的bucket名,请传递appid参数。

2) 创建快照时报找不到index? 请确认indices参数中传递的索引列表中索引名是否正

确,且不要包含空格。

注明:本文为星速云原创版权所有,禁止转载,一经发现将追究版权责任!

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