Checksum Error
--------------
Key: HADOOP-6091
URL: https://issues.apache.org/jira/browse/HADOOP-6091
Project: Hadoop Core
Issue Type: Bug
Affects Versions: 0.19.1
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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