venkata91 commented on a change in pull request #30691:
URL: https://github.com/apache/spark/pull/30691#discussion_r647869895
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File path: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
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@@ -1739,18 +1756,24 @@ private[spark] class DAGScheduler(
if (mapStage.rdd.isBarrier()) {
// Mark all the map as broken in the map stage, to ensure retry
all the tasks on
// resubmitted stage attempt.
- mapOutputTracker.unregisterAllMapOutput(shuffleId)
+ mapOutputTracker.unregisterAllMapAndMergeOutput(shuffleId)
Review comment:
Same as above, added a comment here to handle it as part of handling
barrier execution mode handling.
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