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From "Anton K. (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENENET-106) Lucene.NET (Revision: 603121) is leaking memory
Date Fri, 28 Dec 2007 17:22:43 GMT
Lucene.NET (Revision: 603121) is leaking memory
-----------------------------------------------

                 Key: LUCENENET-106
                 URL: https://issues.apache.org/jira/browse/LUCENENET-106
             Project: Lucene.Net
          Issue Type: Bug
         Environment: .NET 2.0
            Reporter: Anton K.
            Priority: Critical


readerCache Hashtable field (see FieldCacheImpl.cs) never releases some hash items that have
closed IndexReader object as a key. So a lot of Term instances are never released.

Java version of Lucene uses WeakHashMap and therefore doesn't have this problem.

This bug can be reproduced only when Sort functionality used during search. 
See following link for additional information.
http://www.gossamer-threads.com/lists/lucene/java-user/55681

Steps to reproduce:
1)Create index
2) Modify index by IndexWiter; Close IndexWriter
3) Use IndexSearcher for searching with Sort; Close InexSearcher
4) Go to step 2

You'll get OutOfMemoryException after some time of running this algorithm.

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