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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
POST /my_index/_close POST /my_index/_open
It is possible to open and close multiple indices. An error will be thrown
if the request explicitly refers to a missing index. This behaviour can be
disabled using the
All indices can be opened or closed at once using
_all as the index name
or specifying patterns that identify them all (e.g.
Identifying indices via wildcards or
_all can be disabled by setting the
action.destructive_requires_name flag in the config file to
This setting can also be changed via the cluster update settings api.
Closed indices consume a significant amount of disk-space which can cause problems in managed environments. Closing indices can be disabled via the cluster settings
API by setting
false. The default is