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From "Simon Willnauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-4147) rollback/preparecommit thread hazard
Date Thu, 21 Jun 2012 12:19:42 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-4147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Simon Willnauer updated LUCENE-4147:
------------------------------------

    Attachment: LUCENE-4147.patch

I feared that this is gonna hang at some point. I moved the docWriter abort / close out of
the sync block in IW rollbackInternal and beasted the new test + all other tests for hours
now. I think this is fine to move that out, no need really to keep the IW lock since we already
have the commit lock in our hands. I didn't see a failure so far.
                
> rollback/preparecommit thread hazard
> ------------------------------------
>
>                 Key: LUCENE-4147
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4147
>             Project: Lucene - Java
>          Issue Type: Bug
>    Affects Versions: 4.0
>            Reporter: Robert Muir
>         Attachments: LUCENE-4147.patch, LUCENE-4147.patch, LUCENE-4147.patch, LUCENE-4147.patch,
LUCENE-4147.patch, deadlock.log, fail.log, fail.log
>
>
> found by http://jenkins.sd-datasolutions.de/job/Lucene-Solr-4.x-Windows-Java7-64/70/
> rollback should never throw this exception, as it documents it clears any pendingcommits.
> but it calls closeInternal outside of any sync block, so it looks like there is a race
here.

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