Elasticsearch 快照备份与恢复

修改es配置文件，增加本地保存路径

path.repo: ["/es_backup/my_backup/"] #如果想保存到多个路径可以逗号隔开
# 修改完之后，记得重启Es
# 如果本地没有该目录，创建该目录，目录权限也要设置正确

创建基于本地的快照仓库

curl -X PUT "http://localhost:9200/_snapshot/my_backup&pretty" -H 'Content-Type: application/json' -d'
{
    "type": "fs",
    "settings": {
        "compress" : "true",
        "location": "/es_backup/my_backup/"
    }
}'
# 查看仓库信息
curl -XGET "http://localhost:9200/_snapshot/my_backup?pretty"
# 删除仓库
curl -XDELETE 'http://localhost:9200/_snapshot/my_backup'

创建快照

# 创建快照
curl -XPUT ’http://localhost:9200/_snapshot/my_backup/snapshot_2?wait_for_completion=true‘

# 使用当前日期来命名快照，日期格式：snapshot-2018.11.29
curl -X PUT "http://localhost:9200/_snapshot/my_backup/%3Csnapshot-%7Bnow%2Fd%7D%3E"# 查看索引
curl -XGET 'http://localhost:9200/_cat/indices?v'

# 指定索引创建快照
curl -XPUT 'http://localhost:9200/_snapshot/my_backup/snapshot_1' -H 'Content-Type: application/json' -d '{
"indices": "nginx-ingress-controller-log-2018.11.27,nginx-ingress-controller-log-2018.11.28",
"ignore_indices": "missing"
}'
# 查看所有快照
curl -XGET "http://localhost:9200/_snapshot/my_backup?pretty"
# 查看指定快照
curl -XGET "localhost:9200/_snapshot/my_backup/_all?pretty"

恢复快照

# 恢复快照（所有索引）
curl -XPOST http://localhost:9200/_snapshot/my_backup/snapshot_1/_restore
# 恢复快照（指定索引）
curl -XPOST "http://localhost:9200/_snapshot/my_backup/snapshot-2018.11.29/_restore?wait_for_completion=true" -H 'Content-Type: application/json' -d'
{
    "indices":"nginx-ingress-controller-log-2018.11.29",
    "ignore_unavailable":"true"
}'
# 注意：恢复快照的时候需要停止要恢复的索引
# 快照恢复前需要关掉索引
curl -XPOST "http://localhost:9200/my_index/_close"
curl -XPOST "http://localhost:9200/customer/_close"
 
# 开启索引
curl -XPOST "http://localhost:9200/my_index/_open"
 
# 查看索引状态
curl -XGET 'http://localhost:9200/_cat/indices?v'
curl -XGET "http://localhost:9200/_recovery/"

以下是一些常用命令：

# 查看仓库信息
curl -XGET "localhost:9200/_snapshot/my_backup?pretty"

# 查看所有快照
curl -XGET "localhost:9200/_snapshot/my_backup/_all?pretty"

# 删除快照
curl -XDELETE "localhost:9200/_snapshot/my_backup/snapshot_2"


# 查看仓库列表
curl -X GET "localhost:9200/_cat/repositories?v" 

# 获取所有已注册快照仓库
curl -X GET "localhost:9200/_snapshot/_all?pretty"