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Posted to mapreduce-dev@hadoop.apache.org by "Allen Wittenauer (Created) (JIRA)" <ji...@apache.org> on 2012/03/23 02:08:22 UTC

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

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


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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