Ngone51 commented on a change in pull request #27223: [SPARK-30511][CORE] Spark
marks intentionally killed speculative tasks as pending leads to holding idle
executors
URL: https://github.com/apache/spark/pull/27223#discussion_r367750785
##########
File path: core/src/main/scala/org/apache/spark/ExecutorAllocationManager.scala
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@@ -614,18 +614,24 @@ private[spark] class ExecutorAllocationManager(
stageAttemptToNumRunningTask -= stageAttempt
}
}
- // If the task failed, we expect it to be resubmitted later. To ensure
we have
- // enough resources to run the resubmitted task, we need to mark the
scheduler
- // as backlogged again if it's not already marked as such (SPARK-8366)
- if (taskEnd.reason != Success) {
- if (totalPendingTasks() == 0) {
- allocationManager.onSchedulerBacklogged()
- }
- if (taskEnd.taskInfo.speculative) {
- stageAttemptToSpeculativeTaskIndices.get(stageAttempt).foreach
{_.remove(taskIndex)}
- } else {
- stageAttemptToTaskIndices.get(stageAttempt).foreach
{_.remove(taskIndex)}
- }
+
+ if (taskEnd.taskInfo.speculative) {
Review comment:
I think `stageAttemptToSpeculativeTaskIndices` also includes successful
finished speculative tasks? Remove a successful speculative task will count it
into pending speculative tasks again.
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