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https://issues.apache.org/jira/browse/HADOOP-1351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12512202
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Arun C Murthy commented on HADOOP-1351:
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Enis, I still think we need to mark user-killed tasks as {{FAILED}} rather than
{{KILLED}} to ensure this penalizes the job & hence the user...
Also, it would make me much happier if you used
{{TaskInProgress.incompleteSubTask}} to kill the task as soon as the JT
receives the user's instruction rather than queuing it up via the list and
acting on it later. I generally prefer to maintain as less state as and when
possible...
> Want to kill a particular task or attempt
> -----------------------------------------
>
> Key: HADOOP-1351
> URL: https://issues.apache.org/jira/browse/HADOOP-1351
> Project: Hadoop
> Issue Type: New Feature
> Components: mapred
> Affects Versions: 0.14.0
> Reporter: Owen O'Malley
> Assignee: Enis Soztutar
> Fix For: 0.14.0
>
> Attachments: killTask_v1.0.1.patch, killTask_v1.2.patch,
> killTask_v1.3.patch
>
>
> It would be convenient to be able to kill a particular task or attempt from
> the command line. It would look like:
> bin/hadoop job -kill-task tip_0001_m_000000
> bin/hadoop job -kill-attempt task_0001_m_000000_0
> This would allow the user to tell the system to stop a particular task or
> attempt without having to restart a task tracker.
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