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