mridulm commented on code in PR #37922:
URL: https://github.com/apache/spark/pull/37922#discussion_r1067733179


##########
core/src/main/scala/org/apache/spark/storage/BlockManagerMasterEndpoint.scala:
##########
@@ -321,6 +321,12 @@ class BlockManagerMasterEndpoint(
   }
 
   private def removeShuffle(shuffleId: Int): Future[Seq[Boolean]] = {
+    val mergerLocations =
+      if (Utils.isPushBasedShuffleEnabled(conf, isDriver)) {
+        mapOutputTracker.getShufflePushMergerLocations(shuffleId)
+      } else {
+        Seq.empty[BlockManagerId]
+      }

Review Comment:
   I am not sure I understood how we are getting empty mergers, can you please 
give details @wankunde ? Thx



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