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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-205) the job tracker does not schedule enough map on the cluster
Date Tue, 23 May 2006 22:57:31 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-205?page=all ]
Doug Cutting resolved HADOOP-205:

    Fix Version: 0.3
                     (was: 0.4)
     Resolution: Fixed
      Assign To: Mahadev konar  (was: Owen O'Malley)

I just committed this.  Thanks, Mahadev!

> the job tracker does not schedule enough map on the cluster
> -----------------------------------------------------------
>          Key: HADOOP-205
>          URL: http://issues.apache.org/jira/browse/HADOOP-205
>      Project: Hadoop
>         Type: Bug

>   Components: mapred
>     Versions: 0.2
>     Reporter: Owen O'Malley
>     Assignee: Mahadev konar
>      Fix For: 0.3
>  Attachments: maplaunch.patch
> The job tracker during my big sort runs only has 80-120 maps running at a time with 2
tasks/node and 179 nodes and a large queue of map tasks. It seems to be caused by the load
balancing using the current load rather than the required load to run all of the queued tasks.

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