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Feb 8, 2010, 1:21 PM
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[jira] Resolved: (LUCENE-2255) IndexWriter.getReader() allocates file handles
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[ https://issues.apache.org/jira/browse/LUCENE-2255?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael McCandless resolved LUCENE-2255.
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Resolution: Fixed
Fix Version/s: 3.1
3.0.1
2.9.2
> IndexWriter.getReader() allocates file handles
> ----------------------------------------------
>
> Key: LUCENE-2255
> URL: https://issues.apache.org/jira/browse/LUCENE-2255
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Environment: Ubuntu 9.10, Java 6
> Reporter: Mikkel Kamstrup Erlandsen
> Fix For: 2.9.2, 3.0.1, 3.1
>
> Attachments: LuceneManyCommits.java
>
>
> I am not sure if this is a "bug" or really just me not reading the Javadocs right...
> The IR returned by IW.getReader() leaks file handles if you do not close() it, leading to starvation of the available file handles/process. If it was clear from the docs that this was a *new* reader and not some reference owned by the writer then this would probably be ok. But as I read the docs the reader is internally managed by the IW, which at first shot lead me to believe that I shouldn't close it.
> So perhaps the docs should be amended to clearly state that this is a caller-owns reader that *must* be closed? Attaching a simple app that illustrates the problem.
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