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https://issues.apache.org/jira/browse/SOLR-9470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15552291#comment-15552291
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ASF subversion and git services commented on SOLR-9470:
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Commit ce22c2697c1342fd670e3bac460a53aef90d1d80 in lucene-solr's branch
refs/heads/master from markrmiller
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=ce22c26 ]
SOLR-9470: Index replication interactions with IndexWriter can cause deadlock.
> Deadlocked threads in recovery
> ------------------------------
>
> Key: SOLR-9470
> URL: https://issues.apache.org/jira/browse/SOLR-9470
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 6.2
> Reporter: Michael Braun
> Attachments: solr-deadlock-2-r.txt, solr-deadlock.txt
>
>
> Background: Booted up a cluster and replicas were in recovery. All replicas
> recovered minus one, and it was hanging on HTTP requests. Issued shutdown and
> solr would not shut down. Examined with JStack and found a deadlock had
> occurred. The relevant thread information is attached. Some information has
> been redacted as well (some custom URPs, IPs) from the stack traces.
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