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Nov 16, 2007, 6:10 AM
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[jira] Commented: (LUCENE-425) "Cannot rename segments.new to segments"
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[ https://issues.apache.org/jira/browse/LUCENE-425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12543081 ]
Chris Bowditch commented on LUCENE-425:
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We have been using Lucene 1.9.1 for the past 2 years and this issue occurs on a regular basis. Always on Windows and more often on machines with slower hard disks, i.e. Laptops. A colleague of my downloaded the source and patched it to retry the rename and delete operations several times before giving up. I will prepare a patch against trunk shortly which will solve the problem.
> "Cannot rename segments.new to segments"
> ----------------------------------------
>
> Key: LUCENE-425
> URL: https://issues.apache.org/jira/browse/LUCENE-425
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 1.4
> Environment: Operating System: Windows XP
> Platform: PC
> Reporter: Mikko Noromaa
>
> AddDocument periodically fails with "Cannot rename segments.new to segments".
> Sometimes it happens after 10,000 documents, sometimes after 200,000 documents.
> My index is placed on a FAT partition. My Lucene version is 1.4.3. I am using
> a single IndexWriter object and doing all AddDocuments calls serially from a
> single thread.
> I saw some discussion about this problem in the mailing lists, but looks like
> the problem wasn't completely eliminated yet.
> My suggested solutions are as follows:
> - If renameTo() fails, wait some time and retry. After this, apply the other
> methods that are now in FSDirectory.java. Retry them as well after waiting for
> some time.
> - In the IndexWriter constructor, check for 'segments.new' if 'segments'
> cannot be found. This would allow recovery if FSDirectory failed on a previous
> run. Now I have to write the recovery code myself outside of Lucene.
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