Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/9274#discussion_r43323114
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -949,7 +949,13 @@ class DAGScheduler(
// serializable. If tasks are not serializable, a
SparkListenerStageCompleted event
// will be posted, which should always come after a corresponding
SparkListenerStageSubmitted
// event.
- outputCommitCoordinator.stageStart(stage.id)
+ stage match {
+ case s: ShuffleMapStage =>
+ outputCommitCoordinator.stageStart(stage = s.id, maxPartitionId =
s.numPartitions - 1)
--- End diff --
Yeah, it should be irrelevant for ShuffleMapStages. I was just being
overly-conservative here.
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