Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/8958#discussion_r41075408
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/StreamingListener.scala
---
@@ -39,6 +39,17 @@ case class StreamingListenerBatchCompleted(batchInfo:
BatchInfo) extends Streami
case class StreamingListenerBatchStarted(batchInfo: BatchInfo) extends
StreamingListenerEvent
@DeveloperApi
+case class StreamingListenerOutputOperationStarted(
+ outputOperationId: Int,
+ outputOperationCallSite: String,
+ startTime: Long) extends StreamingListenerEvent
+
+@DeveloperApi
+case class StreamingListenerOutputOperationCompleted(
--- End diff --
I think its better for future API compatibility to have another class
called `OutputOperationInfo` (similar to `BatchInfo`). We can add more field in
`OutputOperationInfo` later, without breaking binary compatibility.
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