viirya commented on code in PR #36564:
URL: https://github.com/apache/spark/pull/36564#discussion_r1598660630
##########
core/src/main/scala/org/apache/spark/scheduler/OutputCommitCoordinator.scala:
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@@ -155,9 +158,9 @@ private[spark] class OutputCommitCoordinator(conf:
SparkConf, isDriver: Boolean)
val taskId = TaskIdentifier(stageAttempt, attemptNumber)
stageState.failures.getOrElseUpdate(partition, mutable.Set()) += taskId
if (stageState.authorizedCommitters(partition) == taskId) {
- logDebug(s"Authorized committer (attemptNumber=$attemptNumber,
stage=$stage, " +
- s"partition=$partition) failed; clearing lock")
- stageState.authorizedCommitters(partition) = null
+ sc.foreach(_.dagScheduler.stageFailed(stage, s"Authorized committer
" +
+ s"(attemptNumber=$attemptNumber, stage=$stage,
partition=$partition) failed; " +
+ s"but task commit success, data duplication may happen."))
}
Review Comment:
@cloud-fan I think this is not very clear or correct in the reason string.
`stageState.authorizedCommitters` records a commit is allowed but it is not
actually successful. So as you said the driver never knows if the task commit
is successful or not. Maybe we should update this to reduce confusion.
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