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Only load FST off heap if we are actually using mmaps for the term dictionary #43158

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merged 2 commits into from
Jun 13, 2019
Merged

Only load FST off heap if we are actually using mmaps for the term dictionary #43158

merged 2 commits into from
Jun 13, 2019

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s1monw
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@s1monw s1monw commented Jun 12, 2019

Given the significant performance impact that NIOFS has when term dicts are
loaded off-heap this change enforces FstLoadMode#AUTO that loads term dicts
off-heap only if the underlying index input indicates a memory map.

Relates to #43150

@s1monw
Only load FST off heap if we are actually using mmaps for the term di…
981a876 
…ctionary

Given the significant performance impact that NIOFS has when term dicts are
loaded off-heap this change enforces FstLoadMode#AUTO that loads term dicts
off heap only if the underlying index input indicates a memory map.

Relates to elastic#43150
@s1monw s1monw added >enhancement :Distributed/Engine Anything around managing Lucene and the Translog in an open shard. v8.0.0 v7.2.0 labels Jun 12, 2019
@s1monw s1monw requested a review from jpountz June 12, 2019 13:24
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Pinging @elastic/es-distributed

@s1monw s1monw added v7.3.0 and removed v7.2.0 labels Jun 12, 2019
@s1monw s1monw requested a review from jimczi June 12, 2019 18:45
jimczi
jimczi approved these changes Jun 12, 2019
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LGTM

@s1monw s1monw merged commit 4de85c4 into elastic:master Jun 13, 2019
s1monw added a commit that referenced this pull request Jun 13, 2019
@s1monw
Only load FST off heap if we are actually using mmaps for the term di…
f70141c 
…ctionary (#43158)

Given the significant performance impact that NIOFS has when term dicts are
loaded off-heap this change enforces FstLoadMode#AUTO that loads term dicts
off heap only if the underlying index input indicates a memory map.

Relates to #43150
@ywelsch ywelsch mentioned this pull request Jan 22, 2020
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tlrx added a commit to tlrx/elasticsearch that referenced this pull request Mar 18, 2020
@tlrx
Restore off-heap loading for term dictionary in ReadOnlyEngine
05b8859 
This is a partial restore of elastic#43158, following decision taken in elastic#51247
@tlrx tlrx mentioned this pull request Mar 18, 2020
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tlrx added a commit that referenced this pull request Mar 18, 2020
@tlrx
Restore off-heap loading for term dictionary in ReadOnlyEngine (#53713)
e1096b9 
This is a partial restore of #43158, following decision taken in #51247

Closes #51247
tlrx added a commit that referenced this pull request Mar 18, 2020
@tlrx
Restore off-heap loading for term dictionary in ReadOnlyEngine (#53713)
6cc564d 
This is a partial restore of #43158, following decision taken in #51247

Closes #51247
@codebrain codebrain mentioned this pull request Apr 1, 2020
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@jimczi jimczi jimczi approved these changes

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@s1monw @elasticmachine @jimczi @jakelandis