Github user srowen commented on the pull request:

    https://github.com/apache/spark/pull/151#issuecomment-38011309
  
    @tgravescs FWIW I think something like this is the case, yes. The change 
happened in https://issues.apache.org/jira/browse/YARN-396 which occurred for 
the first(?) YARN TLP release with Hadoop 2.1. And CDH 4.4 was the first 
release I see that picked up this change. I assume it was useful/necessary to 
float this 'alpha' API ahead.
    
    I also would have thought it's possible the `yarn` profile works with this 
release, but I do not know. Just making sure that has been tried?
    
    Otherwise yeah it looks like a question of supporting another intermediate 
flavor of YARN here since it did change in breaking ways several times between 
0.23.x and 2.2


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