1、查看仓库，
GET _snapshot
返回， 仓库名是aliyun_auto_snapshot
{"aliyun_auto_snapshot" : {"type" : "oss","settings" : {"compress" : "true","base_path" : "fb632b-1241148226163200/xxx","endpoint" : "http://oss-cn-shenzhen-internal.aliyuncs.com"}}
}2、查看当前备份文件
GET /_cat/snapshots/aliyun_auto_snapshot?v
返回
id status start_epoch start_time end_epoch end_time duration indices successful_shards failed_shards total_shards
es-xxx_20241206030009 SUCCESS 1733425210 19:00:10 1733425218 19:00:18 7.9s 4 13 0 13
es-xxx_20241207030008 SUCCESS 1733511609 19:00:09 1733511615 19:00:15 6.6s 4
3、备份最新数据。排除系统索引。
PUT _snapshot/aliyun_auto_snapshot/aliyun_auto_snapshot_2024012121614
{"indices":"*,-.*"}
4、查看备份
GET /_cat/snapshots/aliyun_auto_snapshot?v
5、恢复备份的方法，恢复之前关闭索引（如果是增量恢复），或者清空索引数据。
POST _snapshot/aliyun_auto_snapshot/aliyun_auto_snapshot_2024012121614/_restore
{"indices":"*,-.*","ignore_unavailable":"true"}
如果是增量恢复关闭索引的方法
POST *,-.*/_close
如果需要把备份备份到自定义仓库中，以oss为例子，创建方法
PUT _snapshot/my_es_snapshot_from_oss/
{"type": "oss","settings": {"endpoint": "oss-cn-shenzhen-internal.aliyuncs.com","access_key_id": "xxx","secret_access_key": "xxx","bucket": "es-snapshot-qianyi","compress": true,"chunk_size": "500mb","base_path": "my_es_snapshot_from_oss/"}
}
加速快照恢复的方法
GET _cluster/settings?flat_settings&include_defaultsPUT _cluster/settings
{"persistent": {"cluster.routing.allocation.node_concurrent_recoveries": "4","indices.recovery.max_bytes_per_sec": "100mb"}
}
修改分片迁移的配置，以便在rebalance或者recovery时更快恢复集群。indices.recovery.max_bytes_per_sec：恢复时单个节点的总进出流量限制。（默认40mb）indices.recovery.max_concurrent_file_chunks：恢复时可并发拷贝的文件块数量。（默认2）cluster.routing.allocation.cluster_concurrent_rebalance：整个集群范围内允许同时rebalance的shard数。（默认2）cluster.routing.allocation.node_initial_primaries_recoveries：单个节点主分片并行恢复的数据。（默认4）cluster.routing.allocation.node_concurrent_recoveries：单个节点允许同时接收、传出恢复的shard数，（默认2）
