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[SPARK-53145][CORE] Corrected host decommission judgment when calculating rerun tasks caused by executor lost #51875

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[SPARK-53145][CORE] Corrected host decommission judgment when calculating rerun tasks caused by executor lost #51875

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6 changes: 5 additions & 1 deletion core/src/main/scala/org/apache/spark/scheduler/TaskSetManager.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1146,9 +1146,13 @@ private[spark] class TaskSetManager(
// could serve the shuffle outputs or the executor lost is caused by decommission (which
// can destroy the whole host). The reason is the next stage wouldn't be able to fetch the
// data from this dead executor so we would need to rerun these tasks on other executors.
val isHostDecommissioned = reason match {
case ExecutorDecommission(Some(_), _) => true
case _ => false
}
val maybeShuffleMapOutputLoss = isShuffleMapTasks &&
!sched.sc.shuffleDriverComponents.supportsReliableStorage() &&
(reason.isInstanceOf[ExecutorDecommission] || !env.blockManager.externalShuffleServiceEnabled)
(isHostDecommissioned || !env.blockManager.externalShuffleServiceEnabled)
if (maybeShuffleMapOutputLoss && !isZombie) {
for ((tid, info) <- taskInfos if info.executorId == execId) {
val index = info.index
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