Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/42#discussion_r10674139
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -1020,6 +1042,24 @@ class SparkContext(
/** Register a new RDD, returning its RDD ID */
private[spark] def newRddId(): Int = nextRddId.getAndIncrement()
+ /** Post the environment update event if the listener bus is ready */
+ private def postEnvironmentUpdate() {
+ Option(listenerBus).foreach { bus =>
--- End diff --
addJar() calls this, which happens before the spark listener bus is
initialized.
Another way is to initialize the spark listener bus super early (before add
jars). I don't prefer this, however, because it increases the gap between the
initializations of the bus and the UI.
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