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https://issues.apache.org/jira/browse/LUCENE-1044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12546039
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Michael McCandless commented on LUCENE-1044:
--------------------------------------------
Woops, the last line in the table above is wrong (it's a copy of the line
before it). I'll re-run the test.
> Behavior on hard power shutdown
> -------------------------------
>
> Key: LUCENE-1044
> URL: https://issues.apache.org/jira/browse/LUCENE-1044
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Environment: Windows Server 2003, Standard Edition, Sun Hotspot Java
> 1.5
> Reporter: venkat rangan
> Assignee: Michael McCandless
> Fix For: 2.3
>
> Attachments: FSyncPerfTest.java, LUCENE-1044.patch,
> LUCENE-1044.take2.patch, LUCENE-1044.take3.patch, LUCENE-1044.take4.patch
>
>
> When indexing a large number of documents, upon a hard power failure (e.g.
> pull the power cord), the index seems to get corrupted. We start a Java
> application as an Windows Service, and feed it documents. In some cases
> (after an index size of 1.7GB, with 30-40 index segment .cfs files) , the
> following is observed.
> The 'segments' file contains only zeros. Its size is 265 bytes - all bytes
> are zeros.
> The 'deleted' file also contains only zeros. Its size is 85 bytes - all bytes
> are zeros.
> Before corruption, the segments file and deleted file appear to be correct.
> After this corruption, the index is corrupted and lost.
> This is a problem observed in Lucene 1.4.3. We are not able to upgrade our
> customer deployments to 1.9 or later version, but would be happy to back-port
> a patch, if the patch is small enough and if this problem is already solved.
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