venkata91 commented on a change in pull request #34122:
URL: https://github.com/apache/spark/pull/34122#discussion_r786236348
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File path: core/src/main/scala/org/apache/spark/MapOutputTracker.scala
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@@ -1176,6 +1223,9 @@ private[spark] class MapOutputTrackerWorker(conf:
SparkConf) extends MapOutputTr
// instantiate a serializer. See the followup to SPARK-36705 for more
details.
private lazy val fetchMergeResult = Utils.isPushBasedShuffleEnabled(conf,
isDriver = false)
+ // Exposed for testing
+ val shufflePushMergerLocations = new ConcurrentHashMap[Int,
Seq[BlockManagerId]]().asScala
Review comment:
Agree, good callout. This is definitely a potential issue with
indeterminate stages. Thanks.
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