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https://issues.apache.org/jira/browse/LUCENE-3258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13057448#comment-13057448
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Uwe Schindler commented on LUCENE-3258:
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I don't think "won't" fix is the correct "resolution". It's "fixed in 3.3",
right?
> File leak when IOException occurs during index optimization.
> ------------------------------------------------------------
>
> Key: LUCENE-3258
> URL: https://issues.apache.org/jira/browse/LUCENE-3258
> Project: Lucene - Java
> Issue Type: Bug
> Components: core/index
> Affects Versions: 3.0.3
> Environment: SUSE Linux 11, Java 6
> Reporter: Nick Kirsch
>
> I am not sure if this issue requires a fix due to the nature of its
> occurrence, or if it exists in other versions of Lucene.
> I am using Lucene Java 3.0.3 on a SUSE Linux machine with Java 6 and have
> noticed there are a number of file handles that are not being released from
> my java application. There are IOExceptions in my log regarding disk full,
> which causes a merge and the optimization to fail. The index is not currupt
> upon encountering the IOException. I am using CFS for my index format, so 3X
> my largest index size during optimization certainly consumes all of my
> available disk.
> I realize that I need to add more disk space to my machine, but I
> investigated how to clean up the leaking file handles. After failing to find
> a misuse of Lucene's IndexWriter in the code I have wrapping Lucene, I did a
> quick search for close() being invoked in the Lucene Jave source code. I
> found a number of source files that attempt to close more than one object
> within the same close() method. I think a try/catch should be put around each
> of these close() attempts to avoid skipping a subsequent closes. The catch
> may be able to ignore a caught exception to avoid masking the original
> exception like done in SimpleFSDirectory.close().
> Locations in Lucene Java source where I suggest a try/catch should be used:
> - org.apache.lucene.index.FormatPostingFieldsWriter.finish()
> - org.apache.lucene.index.TermInfosWriter.close()
> - org.apache.lucene.index.SegmentTermPositions.close()
> - org.apache.lucene.index.SegmentMergeInfo.close()
> - org.apache.lucene.index.SegmentMerger.mergeTerms() (The finally block)
> - org.apache.lucene.index.DirectoryReader.close()
> - org.apache.lucene.index.FieldsReader.close()
> - org.apache.lucene.index.MultiLevelSkipListReader.close()
> - org.apache.lucene.index.MultipleTermPositions.close()
> - org.apache.lucene.index.SegmentMergeQueue.close()
> - org.apache.lucene.index.SegmentMergeDocs.close()
> - org.apache.lucene.index.TermInfosReader.close()
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