venkata91 commented on a change in pull request #30691:
URL: https://github.com/apache/spark/pull/30691#discussion_r647868344
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File path: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
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@@ -1298,7 +1329,7 @@ private[spark] class DAGScheduler(
// `findMissingPartitions()` returns all partitions every time.
stage match {
case sms: ShuffleMapStage if stage.isIndeterminate && !sms.isAvailable =>
- mapOutputTracker.unregisterAllMapOutput(sms.shuffleDep.shuffleId)
+
mapOutputTracker.unregisterAllMapAndMergeOutput(sms.shuffleDep.shuffleId)
Review comment:
Made a comment here to handle clean up of shuffle merge metadata as part
of handling SPARK-32923 (non-deterministic stage retries) and in SPARK-35547
(handling barrier execution mode)
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