54 lines
1.7 KiB
Plaintext
54 lines
1.7 KiB
Plaintext
[[indices-clearcache]]
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=== Clear Cache
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The clear cache API allows to clear either all caches or specific cached
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associated with one or more indices.
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[source,console]
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--------------------------------------------------
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POST /twitter/_cache/clear
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--------------------------------------------------
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// TEST[setup:twitter]
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The API, by default, will clear all caches. Specific caches can be cleaned
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explicitly by setting the `query`, `fielddata` or `request` url parameter to `true`.
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[source,console]
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--------------------------------------------------
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POST /twitter/_cache/clear?query=true <1>
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POST /twitter/_cache/clear?request=true <2>
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POST /twitter/_cache/clear?fielddata=true <3>
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--------------------------------------------------
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// TEST[continued]
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<1> Cleans only the query cache
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<2> Cleans only the request cache
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<3> Cleans only the fielddata cache
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In addition to this, all caches relating to a specific field can also be
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cleared by specifying `fields` url parameter with a comma delimited list of
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the fields that should be cleared. Note that the provided names must refer to
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concrete fields -- objects and field aliases are not supported.
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[source,console]
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--------------------------------------------------
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POST /twitter/_cache/clear?fields=foo,bar <1>
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--------------------------------------------------
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// TEST[continued]
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<1> Clear the cache for the `foo` an `bar` field
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[float]
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==== Multi Index
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The clear cache API can be applied to more than one index with a single
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call, or even on `_all` the indices.
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[source,console]
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--------------------------------------------------
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POST /kimchy,elasticsearch/_cache/clear
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POST /_cache/clear
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--------------------------------------------------
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// TEST[s/^/PUT kimchy\nPUT elasticsearch\n/]
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