AMScalability test of Sleep job with 100K 1-sec maps regressed into running
very slowly
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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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