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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1351) Want to kill a particular task or attempt
Date Tue, 03 Jul 2007 16:59:07 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1351?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Enis Soztutar updated HADOOP-1351:
----------------------------------

    Attachment: killTask_v1.0.1.patch

<killTask_v1.0.1.patch>

This patch enables killing tasks from JobSubmissionProtocol, and command line. killing tasks
from LocalJobRunner is not supported. 
 
{{bin/hadoop job -kill-task task_0001_m_000000_0}} 
will kill the task attempt. Only killing task attempts is possible, since killing a task(i.e.
TaskInProgress) will result in job failure. 

I have tested the implementation, and it passes all unit tests, however I think it deserves
more testing. I will shortly add killing tasks from web interface. 



> 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: 0.12.3
>            Reporter: Owen O'Malley
>            Assignee: Enis Soztutar
>             Fix For: 0.14.0
>
>         Attachments: killTask_v1.0.1.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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