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From "Yoram Arnon (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-55) map-reduce job overhead is too high
Date Wed, 22 Feb 2006 23:15:48 GMT
map-reduce job overhead is too high
-----------------------------------

         Key: HADOOP-55
         URL: http://issues.apache.org/jira/browse/HADOOP-55
     Project: Hadoop
        Type: Bug
  Components: mapred  
    Versions: 0.2    
    Reporter: Yoram Arnon
    Priority: Minor


map-reduce job overhead is too high. Running a null map-reduce job, with no input, no intermediate
data and no output, on a several-hundred node cluster, takes several minutes, rather than
several seconds.
Enhanced distribution, launching and monitoring mechanisms should reduce the overhead to levels
that match human online patience for short jobs.

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