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https://issues.apache.org/jira/browse/SOLR-7836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14705478#comment-14705478
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Erick Erickson commented on SOLR-7836:
--------------------------------------
bq: I tried applying the last patch and running TestStressReorder and luckily
it does fail often for me.
Yep, I saw that last night. I looked a bit at whether it was a test artifact
and apparently it's not so I was going to dive into that today.
Anyway, since you're working up alternatives, I'll leave it to you. The current
checkin (not the latest patch which I won't commit) at least avoids the
deadlock that started me down this path in the first place. Whether it creates
other issues is, of course, the $64K question. Let me know if there's anything
I can do besides cheer you on.
> 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-reorg.patch, 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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