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From Ole Kværnø (JIRA) <>
Subject [jira] Created: (LUCENE-552) NPE during mergeSegments
Date Fri, 21 Apr 2006 14:10:05 GMT
NPE during mergeSegments

         Key: LUCENE-552
     Project: Lucene - Java
        Type: Bug

  Components: Index  
    Versions: 2.0    
 Environment: 2.0-rc1-dev

    Reporter: Ole Kværnø

The JVM stops with a NPE after running for about 6-8 hours, indexing about 500.000 articles.
After a restart of the JVM, the problematic merge seems to complete OK.

Exception in thread "Thread-4" java.lang.NullPointerException
at org.apache.lucene.index.SegmentReader.initialize(
at org.apache.lucene.index.SegmentReader.get(
at org.apache.lucene.index.SegmentReader.get(
at org.apache.lucene.index.IndexWriter.mergeSegments(
at org.apache.lucene.index.IndexWriter.mergeSegments(
at org.apache.lucene.index.IndexWriter.flushRamSegments(
at org.apache.lucene.index.IndexWriter.close(
at com.magentanews.index.IndexManager.insertDocuments(
at com.magentanews.index.SplitIndexManager.insertDocuments(
at com.magentanews.index.LuceneFeeder.insertDocuments(
at com.magentanews.index.IndexerApplication.insertDocuments(

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