cloud-fan commented on a change in pull request #22806: [SPARK-25250][CORE] :
Late zombie task completions handled correctly even before new taskset launched
URL: https://github.com/apache/spark/pull/22806#discussion_r246619977
##########
File path:
core/src/main/scala/org/apache/spark/scheduler/TaskSchedulerImpl.scala
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@@ -286,6 +286,34 @@ private[spark] class TaskSchedulerImpl(
}
}
+ /**
+ * SPARK-25250: Whenever any Result Task gets successfully completed, we
simply mark the
+ * corresponding partition id as completed in all attempts for that
particular stage and
+ * additionally, for a Result Stage, we also kill the remaining task
attempts running on the
+ * same partition. As a result, we do not see any Killed tasks due to
+ * TaskCommitDenied Exceptions showing up in the UI.
+ */
+ override def completeTasks(partitionId: Int, stageId: Int, killTasks:
Boolean): Unit = {
+ taskSetsByStageIdAndAttempt.getOrElse(stageId, Map()).values.foreach { tsm
=>
+ tsm.partitionToIndex.get(partitionId) match {
+ case Some(index) =>
+ tsm.markPartitionCompletedForRedundantTaskAttempts(index)
+ if (killTasks) {
+ val taskInfoList = tsm.taskAttempts(index)
+ taskInfoList.filter(_.running).foreach { taskInfo =>
+ killTaskAttempt(taskInfo.taskId, false,
+ s"Corresponding Partition ID $partitionId has been marked as
Completed")
Review comment:
we can simplify it to `Partition $partitionId is already completed.`
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