环境:
OS:Centos 7
源端es版本:6.8.5 单机
目的端es版本:7.17.29 3个节点组成的集群
说明:
a.源端若安装了分词插件
1.查看源端es的备份
[hxl@kvm-181 analysis-ik]$ curl -u elastic:sdr123 -X GET "192.168.1.181:19200/_snapshot/esbackup/_all?pretty"
{"snapshots" : [{"snapshot" : "snapshot_20260311","uuid" : "U__c-3ANSS6J6wCrD2ccZQ","version_id" : 6080599,"version" : "6.8.5","indices" : ["hxl_multiple_info3","hxl_multiple_info2"],"include_global_state" : true,"state" : "SUCCESS","start_time" : "2026-03-10T18:01:20.822Z","start_time_in_millis" : 1773165680822,"end_time" : "2026-03-10T18:07:58.832Z","end_time_in_millis" : 1773166078832,"duration_in_millis" : 398010,"failures" : [ ],"shards" : {"total" : 2,"failed" : 0,"successful" : 2}}]
}
我这里只有一个备份 snapshot_20260311
2.查看备份设置
[hxl@kvm-181 analysis-ik]$ curl -u elastic:sdr123 -X GET "192.168.1.181:19200/_snapshot/?pretty"
{"esbackup" : {"type" : "fs","settings" : {"location" : "/home/middle/esbak"}}
}
这里备份目录为:/home/middle/esbak
3.将备份目录下的所有文件和目录拷贝到目的端的备份目录
[root@kvm-181 ~]# cd /home/middle/esbak
[root@kvm-181 ~]# scp -r ./ root@192.168.1.14:/home/middle/esbak/
这里目的端目录:/home/middle/esbak/,就是配置文件path.repo定义的目录
目的端修改权限
[root@rac01 home]#cd /home/middle
[root@rac01 home]#chown -R elasticsearch:elasticsearch ./esbak
可以比较下源端和目的端文件目录大小,确保完全拷贝过来
[elasticsearch@localhost esbak]$cd /home/middle/esbak
[elasticsearch@localhost esbak]$du -h ./
4.目的服务注册备份集
设置备份目录
curl -u elastic:elastic -H "Content-Type: application/json" -XPUT http://192.168.1.14:19200/_snapshot/esbackup -d'{"type": "fs", "settings": {"location": "/home/middle/esbak"}
}'
查看备份
[elasticsearch@localhost esbak]$ curl -u elastic:elastic -X GET "http://192.168.1.14:19200/_snapshot/esbackup/_all?pretty"
{"snapshots" : [{"snapshot" : "snapshot_20260311","uuid" : "U__c-3ANSS6J6wCrD2ccZQ","repository" : "esbackup","version_id" : 6080599,"version" : "6.8.5","indices" : ["hxl_multiple_info3","hxl_multiple_info2" ],"data_streams" : [ ],"include_global_state" : true,"state" : "SUCCESS","start_time" : "2026-03-10T18:01:20.822Z","start_time_in_millis" : 1773165680822,"end_time" : "2026-03-10T18:07:58.832Z","end_time_in_millis" : 1773166078832,"duration_in_millis" : 398010,"failures" : [ ],"shards" : {"total" : 2,"failed" : 0,"successful" : 2},"feature_states" : [ ]}],"total" : 1,"remaining" : 0
}
5.把源端配置分分词拷贝到目的机器
若源端使用了分词器的话
scp hxl_synonyms.txt root@192.168.1.14:/usr/local/services/elasticsearch7/config/analysis-ik/
scp hxl_synonyms.txt root@192.168.1.134:/usr/local/services/elasticsearch7/config/analysis-ik/
scp hxl_synonyms.txt root@192.168.1.135:/usr/local/services/elasticsearch7/config/analysis-ik/
目的机器修改权限
chown -R elasticsearch:elasticsearch /usr/local/services/elasticsearch7/config/analysis-ik
然后重启es
kill es进程
[root@rac01 middle]# su - elasticsearch
[elasticsearch@es ~]$ cd /usr/local/services/elasticsearch7/bin
./elasticsearch -d
5.恢复
curl -u elastic:elastic -XPOST "http://192.168.1.14:19200/_snapshot/esbackup/snapshot_20260311/_restore?wait_for_completion=true" -H 'Content-Type: application/json' -d'
{"indices": "hxl_multiple_info3,hxl_multiple_info2"
}'