OpenSearch/docs/reference/index-modules/allocation.asciidoc
Andrei Dan 6e80de0e34
DOCS: general overview of data tiers and roles (#63086) (#63422)
This adds general overview documentation for data tiers,
the data tiers specific node roles, and their application in
ILM.

Co-authored-by: Lee Hinman <dakrone@users.noreply.github.com>
Co-authored-by: debadair <debadair@elastic.co>
(cherry picked from commit d588cab74722bfb1d3ca0fea15d10c66af937306)
Signed-off-by: Andrei Dan <andrei.dan@elastic.co>
2020-10-07 17:31:15 +01:00

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[[index-modules-allocation]]
== Index Shard Allocation
This module provides per-index settings to control the allocation of shards to
nodes:
* <<shard-allocation-filtering,Shard allocation filtering>>: Controlling which shards are allocated to which nodes.
* <<delayed-allocation,Delayed allocation>>: Delaying allocation of unassigned shards caused by a node leaving.
* <<allocation-total-shards,Total shards per node>>: A hard limit on the number of shards from the same index per node.
* <<data-tier-shard-filtering, Data tier allocation>>: Controls the allocation of indices to <<data-tiers, data tiers>>.
include::allocation/filtering.asciidoc[]
include::allocation/delayed.asciidoc[]
include::allocation/prioritization.asciidoc[]
include::allocation/total_shards.asciidoc[]
include::allocation/data_tier_allocation.asciidoc[]