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https://issues.apache.org/jira/browse/MAPREDUCE-3319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13166650#comment-13166650
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Matt Foley commented on MAPREDUCE-3319:
---------------------------------------
Subroto, thanks for providing a patch. Unfortunately you also set the "Fix
Version" to 1.0.0, which implies it is already fixed in 1.0.0, which it
apparently isn't, according to Roman's email of today. (Although Roman's
comment of 28/Nov/11 21:49 also seems to imply it was fixed in 1.0.0. Perhaps
that was user error.)
Please do not set "Fix Version" until after the patch is committed to a given
version. The intent or desire to have a fix in a given version should be
expressed in "Target Version", not "Fix Version".
+1 for code review, lgtm. Committed to branch-1 for future release 1.1.0.
Thanks Subroto!
> multifilewc from hadoop examples seems to be broken in 0.20.205.0
> -----------------------------------------------------------------
>
> 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
> Assignee: Subroto Sanyal
> Priority: Blocker
> Labels: bigtop
> Fix For: 1.1.0
>
> Attachments: MAPREDUCE-3319.patch
>
>
> {noformat}
> /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)
> {noformat}
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