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From "Robert Joseph Evans (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3808) NPE in FileOutputCommitter when running a 0 reduce job
Date Mon, 06 Feb 2012 19:57:59 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3808?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Joseph Evans updated MAPREDUCE-3808:
-------------------------------------------

     Target Version/s: 0.23.1, 0.24.0
    Affects Version/s: 0.24.0
               Status: Patch Available  (was: Open)
    
> NPE in FileOutputCommitter when running a 0 reduce job
> ------------------------------------------------------
>
>                 Key: MAPREDUCE-3808
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3808
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0, 0.24.0
>            Reporter: Siddharth Seth
>            Assignee: Robert Joseph Evans
>            Priority: Blocker
>         Attachments: MR-3808.txt
>
>
> This was while running LoadGen.
> {noformat}
> Error: java.lang.NullPointerException at org.apache.hadoop.fs.Path.<init>(Path.java:67)

> at org.apache.hadoop.fs.Path.<init>(Path.java:56) 
> 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:1157)

> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:142)
> {noformat}

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