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https://issues.apache.org/jira/browse/HADOOP-4288?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod K V updated HADOOP-4288:
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    Remaining Estimate: 0h
     Original Estimate: 0h

At present, we limit users only by the particular user's total number of tasks 
and as such, numJobsByUser is not useful at all. Unless we wish to limit users 
by the number of jobs also in the future, we can altogether remove 
numJobsByUser. May or may not be in this patch though.

> java.lang.NullPointerException is observed in Jobtracker log while   call 
> heartbeat
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-4288
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4288
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/capacity-sched
>    Affects Versions: 0.19.0
>            Reporter: Karam Singh
>            Assignee: Amar Kamat
>            Priority: Blocker
>         Attachments: HADOOP-4288-v1.patch, HADOOP-4288-v2.patch
>
>   Original Estimate: 0h
>  Remaining Estimate: 0h
>
> 2008-09-26 09:33:08,190 INFO org.apache.hadoop.ipc.Server: IPC Server handler 
> 5 on 34441, call heartbeat([EMAIL PROTECTED], false, true, 100) from 
> <ipaddress:port>: error: java.io.IOException: java.lang.NullPointerException  
> is observed in Jobtracker log.

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