[GitHub] spark pull request: [SPARK-9468][Yarn][Core] Avoid scheduling task...

[mccheah <gi...@git.apache.org>]

Github user mccheah commented on the pull request:

    https://github.com/apache/spark/pull/7786#issuecomment-147785192
  
    Quick question - Is it guaranteed that if the AM is told "Container X may be preempted" it necessitates that "Container X will definitely be preempted"? We should link documentation to this behavior somewhere. If not, how does our code handle if the YARN scheduler changes its mind about which containers to preempt?


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