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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5128) JobQueueTaskScheduler should Assign multiple reduces per heartbeat
Date Tue, 27 Jan 2009 08:19:02 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated HADOOP-5128:
----------------------------------

    Component/s: mapred
       Assignee: Arun C Murthy

> JobQueueTaskScheduler should Assign multiple reduces per heartbeat
> ------------------------------------------------------------------
>
>                 Key: HADOOP-5128
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5128
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.21.0
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>
> Currently the JobQueueTaskScheduler assigns only 1 reduce per heartbeat, for applications
where latency is important we could assign more reduces (upto available slots).

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