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Posted to mapreduce-issues@hadoop.apache.org by "Cindy Li (JIRA)" <ji...@apache.org> on 2013/08/21 00:31:52 UTC

[jira] [Updated] (MAPREDUCE-5370) Rolling Restart Tasktrackers from JobTracker

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cindy Li updated MAPREDUCE-5370:
--------------------------------

    Attachment: Proposed tasktracker rolling restart method-cindyli-v2.pdf
    
> Rolling Restart Tasktrackers from JobTracker
> --------------------------------------------
>
>                 Key: MAPREDUCE-5370
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5370
>             Project: Hadoop Map/Reduce
>          Issue Type: Task
>            Reporter: Cindy Li
>            Priority: Minor
>         Attachments: Proposed tasktracker rolling restart method-cindy li.pdf, Proposed tasktracker rolling restart method-cindyli-v2.pdf
>
>
> For near real-time jobs running on hadoop, we want to minimize impact on them when rolling restarting tasktrackers. The idea here is to restart tasktrackers from jobtracker and selectively choose task trackers according to tasks' status on them to do rolling restart, such that the impact on total job running time is minimum. 

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