Github user ueshin commented on a diff in the pull request:
https://github.com/apache/spark/pull/11720#discussion_r57667547
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -286,6 +286,7 @@ class DAGScheduler(
case None =>
// We are going to register ancestor shuffle dependencies
getAncestorShuffleDependencies(shuffleDep.rdd).foreach { dep =>
+ assert(!shuffleToMapStage.get(dep.shuffleId).isDefined)
--- End diff --
@markhamstra Thank you for your review.
I'll remove the assertion for now but notice that there is a case that some
stages refer the overwritten stage as its parent by the overwrite, which is
undesirable for `DAGScheduler`.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
