Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/14269#discussion_r118106331
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/LiveListenerBus.scala ---
@@ -32,18 +33,24 @@ import org.apache.spark.util.Utils
* has started will events be actually propagated to all attached
listeners. This listener bus
* is stopped when `stop()` is called, and it will drop further events
after stopping.
*/
-private[spark] class LiveListenerBus extends SparkListenerBus {
+private[spark] class LiveListenerBus(val sparkContext: SparkContext)
extends SparkListenerBus {
--- End diff --
I'm modifying LiveListenerBus now and noticed that we're passing in
`sparkContext` even though we only use it to access `conf`. I think it would
have been better to just pass in `conf` here. It would make the initialization
order constraints a lot clearer, too: right now it's not immediately clear why
`eventQueue` needs to be a `lazy val`.
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