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https://issues.apache.org/jira/browse/SOLR-7836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14695827#comment-14695827
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Erick Erickson commented on SOLR-7836:
--------------------------------------

bq: Is this still the case (that TestStressReorder now sometimes fails?)

[[email protected]] It better _not_ be still failing or I'll have to fall on 
my sword. I'm pretty sure I fixed that up, I can't imagine that I would just 
check the changes in since the TestStressReorder was what I ripped off to make 
my new test to avoid that deadlock and the link between the two is pretty 
obvious, even to me ;)

I can't do it right now, but I'll run TestStressReorder a lot this evening to 
be sure.



> Possible deadlock when closing refcounted index writers.
> --------------------------------------------------------
>
>                 Key: SOLR-7836
>                 URL: https://issues.apache.org/jira/browse/SOLR-7836
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Erick Erickson
>            Assignee: Erick Erickson
>             Fix For: Trunk, 5.4
>
>         Attachments: SOLR-7836-synch.patch, SOLR-7836.patch, SOLR-7836.patch, 
> SOLR-7836.patch, deadlock_3.res.zip, deadlock_5_pass_iw.res.zip, deadlock_test
>
>
> Preliminary patch for what looks like a possible race condition between 
> writerFree and pauseWriter in DefaultSorlCoreState.
> Looking for comments and/or why I'm completely missing the boat.



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