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Posted to mapreduce-issues@hadoop.apache.org by "Subroto Sanyal (Updated) (JIRA)" <ji...@apache.org> on 2011/12/06 11:29:40 UTC
[jira] [Updated] (MAPREDUCE-3319) multifilewc from hadoop examples
seems to be broken in 0.20.205.0
[ https://issues.apache.org/jira/browse/MAPREDUCE-3319?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Subroto Sanyal updated MAPREDUCE-3319:
--------------------------------------
Attachment: MAPREDUCE-3319.patch
> 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
> 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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