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Posted to mapreduce-issues@hadoop.apache.org by "Mark Wagner (JIRA)" <ji...@apache.org> on 2013/10/11 02:26:45 UTC

[jira] [Assigned] (MAPREDUCE-4058) adjustable task priority

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Wagner reassigned MAPREDUCE-4058:
--------------------------------------

    Assignee: Mark Wagner

> adjustable task priority
> ------------------------
>
>                 Key: MAPREDUCE-4058
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4058
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: task-controller
>    Affects Versions: 1.0.0
>            Reporter: Allen Wittenauer
>            Assignee: Mark Wagner
>         Attachments: MAPREDUCE-4058-branch-1.0.patch
>
>
> For those of us that completely destroy our CPUs, it is beneficial to be able to run user tasks at a different priority than the tasktracker. This would allow for TTs (and by extension, DNs) to get more CPU clock cycles so that things like heartbeats don't disappear.



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