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https://issues.apache.org/jira/browse/MAPREDUCE-3821?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Joseph Evans resolved MAPREDUCE-3821.
--------------------------------------------
Resolution: Duplicate
> NPE while running Shuffle benchmark
> -----------------------------------
>
> Key: MAPREDUCE-3821
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3821
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.1
> Reporter: Ramya Sunil
> Priority: Critical
>
> hadoop jar hadoop-mapreduce-test.jar loadgen -outKey
> org.apache.hadoop.io.Text -outValue org.apache.hadoop.io.Text
> The tasks fail with the following exception:
> {noformat}
> Error: java.lang.NullPointerException
> at org.apache.hadoop.fs.Path.<init>(Path.java:69)
> at org.apache.hadoop.fs.Path.<init>(Path.java:58)
> at
> org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter.getPendingJobAttemptsPath(FileOutputCommitter.java:118)
> at
> org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter.getJobAttemptPath(FileOutputCommitter.java:167)
> at
> org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter.getJobAttemptPath(FileOutputCommitter.java:149)
> at
> org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter.getPendingTaskAttemptsPath(FileOutputCommitter.java:185)
> at
> org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter.getTaskAttemptPath(FileOutputCommitter.java:209)
> at
> org.apache.hadoop.mapred.FileOutputCommitter.getTaskAttemptPath(FileOutputCommitter.java:100)
> at
> org.apache.hadoop.mapred.FileOutputCommitter.getTaskAttemptPath(FileOutputCommitter.java:94)
> at
> org.apache.hadoop.mapred.FileOutputCommitter.needsTaskCommit(FileOutputCommitter.java:176)
> at
> org.apache.hadoop.mapred.OutputCommitter.needsTaskCommit(OutputCommitter.java:248)
> at org.apache.hadoop.mapred.Task.isCommitRequired(Task.java:955)
> at org.apache.hadoop.mapred.Task.done(Task.java:912)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:331)
> at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:147)
> 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:1177)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:142)
> {noformat}
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