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From "Shivender Devarakonda (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2376) java.lang.OutOfMemoryError:Java heap space
Date Wed, 07 Apr 2010 02:51:33 GMT
java.lang.OutOfMemoryError:Java heap space
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                 Key: LUCENE-2376
                 URL: https://issues.apache.org/jira/browse/LUCENE-2376
             Project: Lucene - Java
          Issue Type: Bug
          Components: Index
    Affects Versions: 2.9.1
         Environment: Windows
            Reporter: Shivender Devarakonda


I see an OutOfMemory error in our product and it is happening when we have some data objects
on which we built the index. I see the following OutOfmemory error, this is happening after
we call Indexwriter.optimize():


4/06/10 02:03:42.160 PM PDT [ERROR] [Lucene Merge Thread #12]  In thread Lucene Merge Thread
#12 and the message is org.apache.lucene.index.MergePolicy$MergeException: java.lang.OutOfMemoryError:
Java heap space
4/06/10 02:03:42.207 PM PDT [VERBOSE] [Lucene Merge Thread #12] [Manager] Uncaught Exception
in thread Lucene Merge Thread #12
org.apache.lucene.index.MergePolicy$MergeException: java.lang.OutOfMemoryError: Java heap
space
	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:351)
	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:315)
Caused by: java.lang.OutOfMemoryError: Java heap space
	at java.util.HashMap.resize(HashMap.java:462)
	at java.util.HashMap.addEntry(HashMap.java:755)
	at java.util.HashMap.put(HashMap.java:385)
	at org.apache.lucene.index.FieldInfos.addInternal(FieldInfos.java:256)
	at org.apache.lucene.index.FieldInfos.read(FieldInfos.java:366)
	at org.apache.lucene.index.FieldInfos.<init>(FieldInfos.java:71)
	at org.apache.lucene.index.SegmentReader$CoreReaders.<init>(SegmentReader.java:116)
	at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:638)
	at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:608)
	at org.apache.lucene.index.IndexWriter$ReaderPool.get(IndexWriter.java:686)
	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4979)
	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4614)
	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:235)
	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:291)
4/06/10 02:03:42.895 PM PDT [ERROR]  this writer hit an OutOfMemoryError; cannot complete
optimize


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