mridulm commented on a change in pull request #34122:
URL: https://github.com/apache/spark/pull/34122#discussion_r793834393



##########
File path: core/src/main/scala/org/apache/spark/Dependency.scala
##########
@@ -114,15 +114,6 @@ class ShuffleDependency[K: ClassTag, V: ClassTag, C: 
ClassTag](
 
   def shuffleMergeAllowed : Boolean = _shuffleMergeAllowed
 
-  // By default, shuffle merge is enabled for ShuffleDependency if 
shuffleMergeAllowed
-  private[this] var _shuffleMergeEnabled = shuffleMergeAllowed
-
-  private[spark] def setShuffleMergeEnabled(shuffleMergeEnabled: Boolean): 
Unit = {
-    _shuffleMergeEnabled = shuffleMergeEnabled
-  }
-
-  def shuffleMergeEnabled : Boolean = _shuffleMergeEnabled

Review comment:
       > In that case, should we also make shuffleMergeAllowed as well 
private[spark]. For now it is better to make everything private[spark] related 
to push-based shuffle right? Thoughts?
   
   `shuffleMergeAllowed` is similar to `shuffleMergeEnabled` - and has value as 
a developer api, which developers can query for - the setters dont.
   FinalizeTask on other hand is a purely internal impl detail.
   




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