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https://issues.apache.org/jira/browse/LUCENE-8018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand resolved LUCENE-8018.
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Resolution: Fixed
Fix Version/s: 7.2
master (8.0)
Thank you Julian!
> 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
> Fix For: master (8.0), 7.2
>
> 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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