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https://issues.apache.org/jira/browse/LUCENE-846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steven Parkes updated LUCENE-846:
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Attachment: LUCENE-846-test.txt
Okay, here's an old version of 847 that demonstrates the problem (at least it
does for me.)
No looking at the rest of my half-baked code.
And there's a bunch of debugging turned on in the patch, too.
> IOExeception can cause loss of data due to premature segment deletion
> ---------------------------------------------------------------------
>
> Key: LUCENE-846
> URL: https://issues.apache.org/jira/browse/LUCENE-846
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Reporter: Steven Parkes
> Assigned To: Michael McCandless
> Attachments: LUCENE-846-test.txt
>
>
> If you hit an IOException, e.g., disk full, while making a cfs from its
> constituent parts, you may not be able to rollback to the before-merge
> process. This happens via addIndexes.
> I don't have a nice easy test for this; generating IOEs ain't so easy. But it
> does happen in the patch for the factored merge policy with the existing
> tests because the pseudo-randomly generated IOEs fall in a different place.
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