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https://issues.apache.org/jira/browse/HADOOP-5247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12849053#action_12849053
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Amareshwari Sriramadasu commented on HADOOP-5247:
-------------------------------------------------

In branch 0.21, MAPREDUCE-777 changed JobClient to return IOException instead 
of NullPointerException in the above scenario.

> NPEs in JobTracker and JobClient when 
> mapred.jobtracker.completeuserjobs.maximum is set to zero.
> ------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-5247
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5247
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Vinod K V
>            Assignee: Amar Kamat
>            Priority: Blocker
>             Fix For: 0.19.2, 0.20.0
>
>         Attachments: HADOOP-5247-v1.1.patch, 
> HADOOP-5247-v1.10.branch-0.19.patch, HADOOP-5247-v1.10.patch, 
> HADOOP-5247-v1.4.patch, HADOOP-5247-v1.7.patch, HADOOP-5247-v1.8.patch, 
> HADOOP-5247-v1.9.patch
>
>


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