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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (LUCENE-1376) sometimes if a BG merge hits an exception, optimize() will fail to forward the exception
Date Thu, 04 Sep 2008 11:15:44 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-1376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael McCandless resolved LUCENE-1376.
----------------------------------------

    Resolution: Fixed

Committed revision 691964.

> sometimes if a BG merge hits an exception, optimize() will fail to forward the exception
> ----------------------------------------------------------------------------------------
>
>                 Key: LUCENE-1376
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1376
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>    Affects Versions: 2.3
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>            Priority: Trivial
>             Fix For: 2.4
>
>         Attachments: LUCENE-1376.patch
>
>
> I was seeing an intermittant failure, only on a Windows instance running inside VMWare,
of TestIndexWriter.testAddIndexOnDiskFull.
> It is happening because the while loop that checks for merge exceptions that had occurred
during optimize fails to catch the case where all the BG optimize merges completed (or hit
exceptions) before the while loop begins.  IE, all BG threads finished before the FG thread
advanced to the while loop.  In that case the code fails to check if there were any exceptions.
> The fix is straightforward: change the while loop so that it always checks, at least
once, whether there were exceptions.

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