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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-517) The capacity-scheduler should assign multiple tasks per heartbeat
Date Thu, 08 Jul 2010 07:19:52 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated MAPREDUCE-517:
------------------------------------

    Attachment: MAPREDUCE-517_yhadoop20.patch

Minor tweak to ensure off-switch tasks are scheduled more aggressively for high-ram maps.

> The capacity-scheduler should assign multiple tasks per heartbeat
> -----------------------------------------------------------------
>
>                 Key: MAPREDUCE-517
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-517
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>            Priority: Critical
>         Attachments: HADOOP-5090-20090504.txt, HADOOP-5090-20090506.txt, HADOOP-5090-20090604.txt,
MAPREDUCE-517_yhaddop20.patch, MAPREDUCE-517_yhadoop20.patch, MAPREDUCE-517_yhadoop20.patch
>
>
> HADOOP-3136 changed the default o.a.h.mapred.JobQueueTaskScheduler to assign multiple
tasks per TaskTracker heartbeat, the capacity-scheduler should do the same.

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