venkata91 commented on a change in pull request #30691:
URL: https://github.com/apache/spark/pull/30691#discussion_r626222342
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File path: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
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@@ -689,7 +716,7 @@ private[spark] class DAGScheduler(
dep match {
case shufDep: ShuffleDependency[_, _, _] =>
val mapStage = getOrCreateShuffleMapStage(shufDep,
stage.firstJobId)
- if (!mapStage.isAvailable) {
+ if (!mapStage.isAvailable || !mapStage.isMergeFinalized) {
Review comment:
Comment is there as part of `isMergeFinalized` API similar to
`isAvailable`. Do you think that's not enough?
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