本文介绍Elasticsearch中如何使用开放与关闭索引API来控制索引的状态。关闭索引可以减少集群开销，并阻止读写操作，而再次打开索引则会启动正常的恢复流程。
admin indices open close
The open and close index APIs allow to close an index, and later on opening it. A closed index has almost no overhead on the cluster (except for maintaining its metadata), and is blocked for read/write operations. A closed index can be opened which will then go through the normal recovery process.
The REST endpoint is /{index}/_close and /{index}/_open. For example:
curl -XPOST 'localhost:9200/my_index/_close'
curl -XPOST 'localhost:9200/my_index/_open'
The open and close index APIs allow to close an index, and later on opening it. A closed index has almost no overhead on the cluster (except for maintaining its metadata), and is blocked for read/write operations. A closed index can be opened which will then go through the normal recovery process.
The REST endpoint is /{index}/_close and /{index}/_open. For example:
curl -XPOST 'localhost:9200/my_index/_close'
curl -XPOST 'localhost:9200/my_index/_open'
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