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From "Mikkel Kamstrup Erlandsen (JIRA)" <>
Subject [jira] Created: (LUCENE-2255) IndexWriter.getReader() allocates file handles
Date Mon, 08 Feb 2010 19:59:28 GMT
IndexWriter.getReader() allocates file handles

                 Key: LUCENE-2255
             Project: Lucene - Java
          Issue Type: Bug
          Components: Index
         Environment: Ubuntu 9.10, Java 6
            Reporter: Mikkel Kamstrup Erlandsen

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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