ElasticSearch备份与恢复
挂载
挂载远程主机目录
# CentOS
yum install epel-release
yum install fuse-sshfs
# ubuntu
apt install sshfs
sshfs root@nfs_ip:/data/backup/elasticsearch /data/backup/elasticsearch -o allow_other # 如果没有allow_other参数，挂载过来的目录只有root才能访问卸载目录
fusermount -u /data/backup/elasticsearch备份
创建快照备份目录
mkdir /data/backup/elasticsearch
chown -R elasticsearch.elasticsearch /data/backup/elasticsearch修改es配置，添加快照备份目录
vim /etc/elasticsearch/elasticsearch.yml
path.repo: /data/backup/elasticsearch # 如果是es集群，要确保所有集群可以访问到该目录创建快照仓库
curl -X PUT "http://localhost:9200/_snapshot/my_backup" -H 'Content-Type: application/json' -d '{ "type": "fs", "settings": { "location": "/data/backup/elasticsearch", "compress": true }}'仓库名为my_backup，fs仓库类型为共享文件系统，location指定一个本机目录作为快照保存路径
创建完成后，查看所有仓库
_all替换具体的仓库名称
curl -XGET localhost:9200/_snapshot/_all?pretty备份快照
curl -X PUT "localhost:9200/_snapshot/my_backup/news?wait_for_completion=true&pretty" -H 'Content-Type: application/json' -d' { "indices":"indices1,indices2", "ignore_unavailable": true }' # 只备份indices1和indices2索引
curl -XPUT localhost:9200/_snapshot/my_backup/news?wait_for_completion=true # 备份所有索引到my_backup仓库下一个名为news快照中备份快照
curl -X PUT "localhost:9200/_snapshot/my_backup/news?wait_for_completion=true&pretty" -H 'Content-Type: application/json' -d' { "indices":"indices1,indices2", "ignore_unavailable": true }' # 只备份indices1和indices2索引
curl -XPUT localhost:9200/_snapshot/my_backup/news?wait_for_completion=true # 备份所有索引到my_backup仓库下一个名为news快照中
仓库名my_backup，快照名news
备份完成后，查看快照
curl -XGET localhost:9200/_snapshot/my_backup/_all?pretty恢复
创建快照目录
mkdir /data/backup/elasticsearch
chown -R elasticsearch.elasticsearch /data/backup/elasticsearch修改es配置，添加备份目录
vim /etc/elasticsearch/elasticsearch.yml
path.repo: /data/backup/elasticsearch # 如果是es集群，要确保所有集群可以访问到该目录创建快照仓库
curl -X PUT "http://localhost:9200/_snapshot/my_backup" -H 'Content-Type: application/json' -d '{ "type": "fs", "settings": { "location": "/data/backup/elasticsearch", "compress": true }}'恢复快照
curl -XPOST http://localhost:9200/_snapshot/my_backup/news/_restore?wait_for_completion=true # 默认会恢复news快照中所有的索引举报
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