ElasticSearch备份与恢复

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挂载

挂载远程主机目录

代码语言：javascript复制

# 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

代码语言：javascript复制

fusermount -u /data/backup/elasticsearch

备份

创建快照备份目录

代码语言：javascript复制

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

代码语言：javascript复制

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

代码语言：javascript复制

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

代码语言：javascript复制

curl -XGET localhost:9200/_snapshot/_all?pretty

备份快照

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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

代码语言：javascript复制

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

代码语言：javascript复制

curl -XGET localhost:9200/_snapshot/my_backup/_all?pretty

---

恢复

创建快照目录

代码语言：javascript复制

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

代码语言：javascript复制

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

代码语言：javascript复制

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

代码语言：javascript复制

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

es backup elasticsearch vim 备份

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