Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/3486#discussion_r21491005
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/SparkListener.scala ---
@@ -183,6 +193,16 @@ trait SparkListener {
* Called when the driver receives task metrics from an executor in a
heartbeat.
*/
def onExecutorMetricsUpdate(executorMetricsUpdate:
SparkListenerExecutorMetricsUpdate) { }
+
+ /**
+ * Called when the driver registers a new executor.
+ */
+ def onExecutorAdded(executorAdded: SparkListenerExecutorAdded) { }
--- End diff --
Ah wait. I see. These methods have default implementations, so they'll only
affect people extending `SparkListener` from Java. Still, we should probably
save these events to the log for replay later.
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