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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-98) The JobTracker's count of the number of running maps and reduces is wrong
Date Thu, 23 Mar 2006 08:14:13 GMT
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
 Assigned to: Owen O'Malley 
     Fix For: 0.1


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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