Encountered "ClassCastException" on tasktracker while running wordcount with
MultithreadedMapRunner
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Key: MAPREDUCE-796
URL: https://issues.apache.org/jira/browse/MAPREDUCE-796
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: examples
Affects Versions: 0.20.1
Reporter: Suman Sehgal
ClassCastException for OutOfMemoryError is encountered on tasktracker while
running wordcount example with MultithreadedMapRunner.
Stack trace :
=========
java.lang.ClassCastException: java.lang.OutOfMemoryError cannot be cast to
java.lang.RuntimeException
at
org.apache.hadoop.mapreduce.lib.map.MultithreadedMapper.run(MultithreadedMapper.java:149)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:581)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:303)
at org.apache.hadoop.mapred.Child.main(Child.java:170)
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