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Data Tier correlation for searchable_snapshot mount location #74706

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Merged
merged 7 commits into from
Jun 30, 2021
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Data Tier correlation for searchable_snapshot mount location #74706

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+dataTier corr. for searchable_snapshot mounts
stefnestor Jun 29, 2021
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Add requirement sentence. Minor reorg.
jrodewig Jun 29, 2021
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jrodewig Jun 29, 2021
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Minor reword
jrodewig Jun 29, 2021
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jrodewig Jun 30, 2021
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13 changes: 7 additions & 6 deletions docs/reference/ilm/actions/ilm-searchable-snapshot.asciidoc
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Expand Up @@ -5,13 +5,14 @@
Phases allowed: hot, cold, frozen.

Takes a snapshot of the managed index in the configured repository and mounts it
as a <<searchable-snapshots,{search-snap}>>.

In the frozen phase, the action mounts a <<partially-mounted,partially mounted
index>>. In other phases, the action mounts a <<fully-mounted,fully mounted
index>>. If the original index is part of a
as a <<searchable-snapshots,{search-snap}>>. If the index is part of a
<<data-streams, data stream>>, the mounted index replaces the original index in
the data stream.
the stream.

The `searchable_snapshot` action requires <<data-tiers,data tiers>>. In the
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@andreidan andreidan Jun 30, 2021 •
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Could we expand this a bit and say something like:

The `searchable_snapshot` action requires a system that uses <<data-tiers,data tiers>> 
as it will mount the index directly on the corresponding tier using the
 <<tier-preference-allocation-filter, `index.routing.allocation.include._tier_preference`>> setting.

Maybe @jrodewig has a better suggestion here? (I don't particularly like "a system that uses ..." but not sure how else to phrase this).

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Thanks @andreidan. I pushed some changes to incorporate the index.routing.allocation.include._tier_preference setting content.

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Thanks James

frozen phase, the action mounts a <<partially-mounted,partially mounted index>>
to the frozen tier. In other phases, the action mounts a <<fully-mounted,fully
mounted index>> to the corresponding data tier.

IMPORTANT: If the `searchable_snapshot` action is used in the hot phase the
subsequent phases cannot include the `shrink`, `forcemerge`, or `freeze`
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