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https://issues.apache.org/jira/browse/LUCENE-1208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12577073#action_12577073
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Michael Busch commented on LUCENE-1208:
---------------------------------------
We had seen this deadlock problem in our tests. I reran all tests with Lucene
2.3.1 + LUCENE-1208 and didn't see the problem again so far!
> Deadlock case in IndexWriter on exception just before flush
> -----------------------------------------------------------
>
> Key: LUCENE-1208
> URL: https://issues.apache.org/jira/browse/LUCENE-1208
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 2.3, 2.3.1
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Priority: Minor
> Fix For: 2.4
>
> Attachments: LUCENE-1208.patch
>
>
> If a document hits a non-aborting exception, eg something goes wrong
> in tokenStream.next(), and, that document had triggered a flush
> (due to RAM or doc count) then DocumentsWriter will deadlock because
> that thread marks the flush as pending but fails to clear it on
> exception.
> I have a simple test case showing this, and a fix fixing it.
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