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Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2010/11/14 12:17:13 UTC
[jira] Resolved: (LUCENE-2759) We should never open an IndexInput
when an IndexOutput is still open
[ https://issues.apache.org/jira/browse/LUCENE-2759?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael McCandless resolved LUCENE-2759.
----------------------------------------
Resolution: Fixed
> We should never open an IndexInput when an IndexOutput is still open
> --------------------------------------------------------------------
>
> Key: LUCENE-2759
> URL: https://issues.apache.org/jira/browse/LUCENE-2759
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 2.9.4, 3.0.3, 3.1, 4.0
>
> Attachments: LUCENE-2759.patch
>
>
> I modified MockDirWrapper to assert this (except for
> segments_N/segments.gen, where it's expected), and, it uncovered a
> couple of places involving NRT readers where we open a shared doc
> store file that's still open for writing.
> First, if you install a merged segment warmer, we were failing to
> force the merge of the doc stores in this case, thus potentially
> opening the same doc stores that are also still open for writing.
> Second, if you're actively adding docs in other threads when you call
> IW.getReader(), the other threads could sneak in and flush new
> segments sharing the doc stores. The returned reader then opens the
> doc store files that are still open for writing.
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