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https://issues.apache.org/jira/browse/LUCENE-8254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16439222#comment-16439222
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ASF subversion and git services commented on LUCENE-8254:
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Commit 8eb6ed4638e4e27e4dc22ac9d8f44b36238ff3ac in lucene-solr's branch 
refs/heads/branch_7x from [~romseygeek]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=8eb6ed4 ]

LUCENE-8254: LRUQueryCache can leak locks


> LRUQueryCache can leak locks
> ----------------------------
>
>                 Key: LUCENE-8254
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8254
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Alan Woodward
>            Priority: Major
>         Attachments: LUCENE-8254.patch, LUCENE-8254.patch
>
>
> If a QueryCache is shared between two searchers, one of which has an 
> IndexReader with no CacheHelper, then CachingWrapperWeight can leak locks in 
> scorerSupplier() and bulkScorer().  This can cause the IndexReader that does 
> have a CacheHelper to hang on close.



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