multifilewc from hadoop examples seems to be broken in 0.20.205.0
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Key: MAPREDUCE-3319
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3319
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: examples
Affects Versions: 0.20.205.0
Reporter: Roman Shaposhnik
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/usr/lib/hadoop/bin/hadoop jar
/usr/lib/hadoop/hadoop-examples-0.20.205.0.22.jar multifilewc examples/text
examples-output/multifilewc
11/10/31 16:50:26 INFO mapred.FileInputFormat: Total input paths to process : 2
11/10/31 16:50:26 INFO mapred.JobClient: Running job: job_201110311350_0220
11/10/31 16:50:27 INFO mapred.JobClient: map 0% reduce 0%
11/10/31 16:50:42 INFO mapred.JobClient: Task Id :
attempt_201110311350_0220_m_000000_0, Status : FAILED
java.lang.ClassCastException: org.apache.hadoop.io.IntWritable cannot be cast
to org.apache.hadoop.io.LongWritable
at
org.apache.hadoop.mapred.lib.LongSumReducer.reduce(LongSumReducer.java:44)
at
org.apache.hadoop.mapred.Task$OldCombinerRunner.combine(Task.java:1431)
at
org.apache.hadoop.mapred.MapTask$MapOutputBuffer.sortAndSpill(MapTask.java:1436)
at
org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:1298)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:437)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:372)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
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