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From "Shivender Devarakonda (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-2376) java.lang.OutOfMemoryError:Java heap space
Date Fri, 09 Apr 2010 05:43:51 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shivender Devarakonda updated LUCENE-2376:
------------------------------------------

    Attachment: CheckIndex_JavaHeapOOM.txt

CheckIndex output for JavaHeapOOM error. As I specified earlier, We saw OOM when it is indexing
the data. I ran the checkIndex on the partially generated index folder.




> java.lang.OutOfMemoryError:Java heap space
> ------------------------------------------
>
>                 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
>         Attachments: CheckIndex_JavaHeapOOM.txt, InfoStreamOutput.txt
>
>
> 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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