[GitHub] spark pull request #17882: [SPARK-20079][try 2][yarn] Re registration of AM ...

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

Github user jerryshao commented on a diff in the pull request:

    https://github.com/apache/spark/pull/17882#discussion_r120351695
  
    --- Diff: resource-managers/yarn/src/main/scala/org/apache/spark/scheduler/cluster/YarnSchedulerBackend.scala ---
    @@ -68,6 +68,8 @@ private[spark] abstract class YarnSchedulerBackend(
       // Flag to specify whether this schedulerBackend should be reset.
       private var shouldResetOnAmRegister = false
     
    +  private var lastRequestExecutors = RequestExecutors(-1, -1, Map.empty, Set.empty)
    --- End diff --
    
    I would suggest to change the first `-1` to `Utils#getDynamicAllocationInitialExecutors`, and the second to be "0".


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