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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-98) The JobTracker's count of the number of running maps and reduces is wrong
Date Thu, 23 Mar 2006 20:09:19 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-98?page=all ]
     
Doug Cutting resolved HADOOP-98:
--------------------------------

    Resolution: Fixed

This looks great.  I just committed it.  Thanks, Owen.

> The JobTracker's count of the number of running maps and reduces is wrong
> -------------------------------------------------------------------------
>
>          Key: HADOOP-98
>          URL: http://issues.apache.org/jira/browse/HADOOP-98
>      Project: Hadoop
>         Type: Bug
>   Components: mapred
>     Versions: 0.1
>     Reporter: Owen O'Malley
>     Assignee: Owen O'Malley
>      Fix For: 0.1
>  Attachments: task-counter.patch
>
> When a heatbeat comes in from a task tracker, the job tracker just adds the number of
currently running maps and reduces. The jobs from the previous heartbear are never subtracted.
This causes the scheduling to misjudge the "loading" levels of the task trackers.

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