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https://issues.apache.org/jira/browse/LUCENE-1869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless updated LUCENE-1869:
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Attachment: LUCENE-1869.patch
Attached patch.
The patch is trivial (only changes the String message in the already-thrown
RuntimeException when there is a mismatch detected in expected vs actual size
of *.fdx or *.tvx).
> when checking tvx/fdx size mismatch, also include whether the file exists
> -------------------------------------------------------------------------
>
> Key: LUCENE-1869
> URL: https://issues.apache.org/jira/browse/LUCENE-1869
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Index
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Priority: Trivial
> Fix For: 2.9
>
> Attachments: LUCENE-1869.patch
>
>
> IndexWriter checks, during flush and during merge, that the size of the index
> file for stored fields (*.fdx) and term vectors (*.tvx) matches how many
> bytes it has just written.
> This originally was added for LUCENE-1282, ie, as a safety to catch the nasty
> "off by 1" JRE hotspot bug that would otherwise silently corrupt the index.
> However, this check also seems to catch a different case, where the size of
> the file is zero. The most recent example is LUCENE-1521. I'd like to
> improve the message in the exception to include whether or not the file
> exists, to help understand why users are sometimes hitting this exception.
> My best theory at this point is something external is removing the file out
> from under the IndexWriter.
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