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From "mawanqiang (JIRA)" <j...@apache.org>
Subject [jira] Created: (NUTCH-742) Checksum Error
Date Sat, 20 Jun 2009 09:18:07 GMT
Checksum Error 
---------------

                 Key: NUTCH-742
                 URL: https://issues.apache.org/jira/browse/NUTCH-742
             Project: Nutch
          Issue Type: Bug
          Components: indexer
    Affects Versions: 1.0.0
         Environment: linux ubuntu8.0.4 64bit 
10datanode 4G of memory per node 
            Reporter: mawanqiang


Approximately 1 million data used to create index when nutch1.0 error.
The error is:
java.lang.RuntimeException: problem advancing post rec#6758513
at org.apache.hadoop.mapred.Task$ValuesIterator.next(Task.java:883)
at org.apache.hadoop.mapred.ReduceTask$ReduceValuesIterator.moveToNext(ReduceTask.java:237)
at org.apache.hadoop.mapred.ReduceTask$ReduceValuesIterator.next(ReduceTask.java:233)
at org.apache.nutch.indexer.IndexerMapReduce.reduce(IndexerMapReduce.java:79)
at org.apache.nutch.indexer.IndexerMapReduce.reduce(IndexerMapReduce.java:50)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:436)
at org.apache.hadoop.mapred.Child.main(Child.java:158)
Caused by: org.apache.hadoop.fs.ChecksumException: Checksum Error
at org.apache.hadoop.mapred.IFileInputStream.doRead(IFileInputStream.java:153)
at org.apache.hadoop.mapred.IFileInputStream.read(IFileInputStream.java:90)
at org.apache.hadoop.mapred.IFile$Reader.readData(IFile.java:301)
at org.apache.hadoop.mapred.IFile$Reader.rejigData(IFile.java:331)
at org.apache.hadoop.mapred.IFile$Reader.readNextBlock(IFile.java:315)
at org.apache.hadoop.mapred.IFile$Reader.next(IFile.java:377)
at org.apache.hadoop.mapred.Merger$Segment.next(Merger.java:174)
at org.apache.hadoop.mapred.Merger$MergeQueue.adjustPriorityQueue(Merger.java:277)
at org.apache.hadoop.mapred.Merger$MergeQueue.next(Merger.java:297)
at org.apache.hadoop.mapred.Task$ValuesIterator.readNextKey(Task.java:922)
at org.apache.hadoop.mapred.Task$ValuesIterator.next(Task.java:881)
... 6 more


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