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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-9470) Deadlocked threads in recovery
Date Thu, 06 Oct 2016 15:47:21 GMT

    [ https://issues.apache.org/jira/browse/SOLR-9470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15552291#comment-15552291
] 

ASF subversion and git services commented on SOLR-9470:
-------------------------------------------------------

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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