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https://issues.apache.org/jira/browse/LUCENE-9483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17190009#comment-17190009
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ASF subversion and git services commented on LUCENE-9483:
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Commit b331eb61703f4e2ebdc4cde11938cb710c603246 in lucene-solr's branch
refs/heads/branch_8x from Adrien Grand
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=b331eb6 ]
LUCENE-9483: Disable per-thread caching of buffers for decompression of stored
fields. (#1787)
These buffers can use lots of memory when the number of segments,
threads or both is high.
> Disable per-thread caching of buffers for stored fields
> -------------------------------------------------------
>
> Key: LUCENE-9483
> URL: https://issues.apache.org/jira/browse/LUCENE-9483
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Priority: Minor
> Fix For: 8.7
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Stored fields currently cache buffers that are used to decompress data.
> However with one buffer per thread per segment, these buffers can start using
> non-negligible amounts of data.
> I think we should keep them for merges, but either remove them completely for
> regular reads, or sharing them across all segments. As I'd like to avoid
> relying on global threadlocals, I'm leaning towards removing them.
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