Github user mateiz commented on a diff in the pull request:
https://github.com/apache/spark/pull/2311#discussion_r17930410
--- Diff:
yarn/common/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala
---
@@ -91,7 +94,11 @@ private[spark] class ApplicationMaster(args:
ApplicationMasterArguments,
if (sc != null) {
logInfo("Invoking sc stop from shutdown hook")
sc.stop()
- finish(FinalApplicationStatus.SUCCEEDED)
+ }
+
+ // Shuts down the AM.
+ if (!finished) {
--- End diff --
Just to understand, is the YARN retry logic there for resubmitting the AM?
Most Spark applications don't support that, since their driver contains a lot
of state. (Though I guess applications submitted in yarn-client mode might).
In general, if the user's driver is running within the AM, I would say it's
successful if the driver's main() returns 0 or calls System.exit(0). If the
driver is running remotely, it should tell the AM when to shut down cleanly
when it closes its SparkContext or exits.
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