Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/3884#discussion_r23342970
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -1002,6 +1047,7 @@ class SparkContext(config: SparkConf) extends Logging
with ExecutorAllocationCli
*/
@DeveloperApi
override def requestExecutors(numAdditionalExecutors: Int): Boolean = {
+ assertNotStopped()
--- End diff --
This is a toss-up, since I'd expect to throw some sort of error after the
scheduler backend is stopped, but there are many cases where it's a no-op and
doesn't throw an error. Therefore, I'll remove this, too.
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