ivoson commented on code in PR #52335:
URL: https://github.com/apache/spark/pull/52335#discussion_r2361649560
##########
core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala:
##########
@@ -1462,17 +1475,27 @@ private[spark] class DAGScheduler(
s"`${config.STAGE_MAX_CONSECUTIVE_ATTEMPTS.key}`."
abortStage(stage, reason, None)
} else {
- val missing = getMissingParentStages(stage).sortBy(_.id)
+ val missing = try {
+ getMissingParentStages(stage).sortBy(_.id)
+ } catch {
+ case e: RpcTimeoutException =>
+ val reason = s"failed to get missing parent stages for $stage " +
+ s"(name=${stage.name}) due to rpc timeout."
+ abortStage(stage, reason, Some(e))
Review Comment:
Making the stage submit process async seems like a big change for the
DAGScheduler, If we don't want to block the `DAGScheduler` I think we just
abort the stage or submit the missing parents if any even though the caches are
available.
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