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From "Johan Oskarson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-690) NPE in jobcontrol
Date Wed, 08 Nov 2006 12:20:52 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-690?page=comments#action_12448117 ] 
            
Johan Oskarson commented on HADOOP-690:
---------------------------------------

A closer look shows that the tasks actually died, namenode got OutOfMemoryError so they timed
out.

> NPE in jobcontrol
> -----------------
>
>                 Key: HADOOP-690
>                 URL: http://issues.apache.org/jira/browse/HADOOP-690
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.8.0
>            Reporter: Johan Oskarson
>
> While running a few jobs I got this exception:
> Exception in thread "Thread-10" java.lang.NullPointerException
>         at org.apache.hadoop.mapred.jobcontrol.Job.checkRunningState(Job.java:246)
>         at org.apache.hadoop.mapred.jobcontrol.Job.checkState(Job.java:264)
>         at org.apache.hadoop.mapred.jobcontrol.JobControl.checkRunningJobs(JobControl.java:211)
>         at org.apache.hadoop.mapred.jobcontrol.JobControl.run(JobControl.java:280)
> It looks like this was just when all the jobs finished.

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