[GitHub] [spark] cloud-fan commented on a change in pull request #24231: [minor] remove import scala.collection.Set in TaskSchedulerImpl

[GitBox <gi...@apache.org>]

cloud-fan commented on a change in pull request #24231: [minor] remove import scala.collection.Set in TaskSchedulerImpl
URL: https://github.com/apache/spark/pull/24231#discussion_r269837473
 
 

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 File path: core/src/main/scala/org/apache/spark/scheduler/TaskSchedulerImpl.scala
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 @@ -829,7 +828,7 @@ private[spark] class TaskSchedulerImpl(
    * Get a snapshot of the currently blacklisted nodes for the entire application.  This is
    * thread-safe -- it can be called without a lock on the TaskScheduler.
    */
-  def nodeBlacklist(): scala.collection.immutable.Set[String] = {
+  def nodeBlacklist(): Set[String] = {
     blacklistTrackerOpt.map(_.nodeBlacklist()).getOrElse(scala.collection.immutable.Set())
 
 Review comment:
   This is an internal class, so there is no mima issue.

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