Github user squito commented on a diff in the pull request:
https://github.com/apache/spark/pull/16620#discussion_r98699067
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -1212,8 +1223,9 @@ class DAGScheduler(
clearCacheLocs()
- if (!shuffleStage.isAvailable) {
- // Some tasks had failed; let's resubmit this shuffleStage
+ if (!shuffleStage.isAvailable && noActiveTaskSetManager) {
--- End diff --
You need to update this for mapStageJobs -- the `else` branch will now run
if the shuffleStage is not available, but there is an active task set manager,
which we don't want. Also calling `submitWaitingChildStages(shuffleStage)` is
confusing (though it seems to be correct).
(or use the other version I suggested)
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