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https://issues.apache.org/jira/browse/LUCENE-8018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16221803#comment-16221803
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ASF subversion and git services commented on LUCENE-8018:
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Commit 401dda7e064b6f621cba405985143724d79620c4 in lucene-solr's branch
refs/heads/master from [~jpountz]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=401dda7 ]
LUCENE-8018: FieldInfos retains garbage if non-sparse.
> FieldInfos retains garbage if non-sparse
> ----------------------------------------
>
> Key: LUCENE-8018
> URL: https://issues.apache.org/jira/browse/LUCENE-8018
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/store
> Affects Versions: 6.5
> Environment: Lucene 6.5.0, java 8
> openjdk version "1.8.0_45-internal"
> OpenJDK Runtime Environment (build 1.8.0_45-internal-b14)
> OpenJDK 64-Bit Server VM (build 25.45-b02, mixed mode)
> Reporter: Julian Vassev
> Labels: easyfix, performance
> Attachments: LUCENE-8018.patch
>
>
> A heap dump revealed a lot of TreeMap.Entry instances (millions of them) for
> a system with about ~1000 active searchers.
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