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Explicitly recommend to forceMerge before freezing #36376

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Dec 7, 2018
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Explicitly recommend to forceMerge before freezing #36376

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2f09b08
Explicitly recommend to forceMerge before freezing
s1monw Dec 7, 2018
03f5a28
Update docs/reference/frozen-indices.asciidoc
clintongormley Dec 7, 2018
bab6182
Update docs/reference/frozen-indices.asciidoc
clintongormley Dec 7, 2018
b0f2c9c
Update docs/reference/frozen-indices.asciidoc
clintongormley Dec 7, 2018
290c0c7
removing the future tense
s1monw Dec 7, 2018
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11 changes: 11 additions & 0 deletions docs/reference/frozen-indices.asciidoc
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Expand Up @@ -29,6 +29,17 @@ data structures on demand which can cause page faults and garbage collections, w

Since indices that are eligible for freezing are unlikely to change in the future, disk space can be optimized as described in <<tune-for-disk-usage>>.

It's highly recommended to <<indices-forcemerge,`_forcemerge`>> your indices prior to freezing to ensure that each shard has only a single
segment on disk. This not only provides much better compression but also simplifies the data structures needed to service aggregation
or sorted search requests.

[source,js]
--------------------------------------------------
POST /twitter/_forcemerge?max_num_segments=1
--------------------------------------------------
// CONSOLE
// TEST[setup:twitter]

== Searching a frozen index

Frozen indices are throttled in order to limit memory consumptions per node. The number of concurrently loaded frozen indices per node is
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