Github user tgravescs commented on a diff in the pull request:
https://github.com/apache/spark/pull/14269#discussion_r71572761
--- Diff:
core/src/main/scala/org/apache/spark/internal/config/package.scala ---
@@ -103,4 +104,16 @@ package object config {
.stringConf
.checkValues(Set("hive", "in-memory"))
.createWithDefault("in-memory")
+
+ private[spark] val LISTENER_BUS_EVENT_QUEUE_SIZE =
+ ConfigBuilder("spark.scheduler.listenerbus.eventqueue.size")
+ .intConf
+ .transform((x: Int) => {
--- End diff --
The transform wasn't really meant to be a validator. We had discussed
adding validator functionality to the Config stuff but I think that should be
done separately. So for now lets pull this out and just do the check in the
LiveListenerBus.
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