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https://issues.apache.org/jira/browse/HADOOP-4287?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12637418#action_12637418
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Amareshwari Sriramadasu commented on HADOOP-4287:
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I think this jira can remove the assignments for the counters from terminate 
method.
terminate() method, makes *runningMapTasks* and *runningReduceTasks* as zero, 
which is not necessary. They eventually become zero later.

> [mapred] jobqueue_details.jsp shows negative count of running and waiting 
> reduces with CapacityTaskScheduler.
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-4287
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4287
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/capacity-sched
>            Reporter: Vinod K V
>            Assignee: Sreekanth Ramakrishnan
>            Priority: Blocker
>         Attachments: HADOOP-4287-1.patch
>
>
> This I observed while running a job that always fails because of reduce 
> failures. Need to investigate this.

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