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From "Vinod Kumar Vavilapalli (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3402) AMScalability test of Sleep job with 100K 1-sec maps regressed into running very slowly
Date Tue, 15 Nov 2011 15:28:52 GMT
AMScalability test of Sleep job with 100K 1-sec maps regressed into running very slowly
---------------------------------------------------------------------------------------

                 Key: MAPREDUCE-3402
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3402
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: applicationmaster, mrv2
    Affects Versions: 0.23.0
            Reporter: Vinod Kumar Vavilapalli
             Fix For: 0.23.1


The world was rosier before October 19-25, [~karams] says.

The 100K 1 second sleep job used to take around 800mins or 13-14 mins. It now runs till 45
mins and still manages to complete only about 45K tasks.

One/more of the flurry of commits for 0.23.0 deserve(s) the blame.

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