The clear cache API allows to clear either all caches or specific cached associated with one or more indices.
$ curl -XPOST 'http://localhost:9200/twitter/_cache/clear'
The API, by default, will clear all caches. Specific caches can be
cleaned explicitly by setting
All caches relating to a specific field(s) can also be cleared by
fields parameter with a comma delimited list of the
The clear cache API can be applied to more than one index with a single
call, or even on
_all the indices.
$ curl -XPOST 'http://localhost:9200/kimchy,elasticsearch/_cache/clear' $ curl -XPOST 'http://localhost:9200/_cache/clear'
filter cache is not cleared immediately but is scheduled to be
cleared within 60 seconds.