Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/3912#discussion_r22576034
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/ReceiverTracker.scala
---
@@ -137,8 +141,24 @@ class ReceiverTracker(ssc: StreamingContext,
skipReceiverLaunch: Boolean = false
}
receiverInfo(streamId) = ReceiverInfo(
streamId, s"${typ}-${streamId}", receiverActor, true, host)
+ logInfo(s"Receiver for stream ${streamId} from ${sender.path.address}
" +
+ s"attempts to register.")
+ }
+
+ /** Report a starting receiver */
+ private def startingReceiver(
--- End diff --
But the problem is that receiver restart will deregister the receiver at
first, so the actor info of that receiver will be lost, and we need to send
`RegisterReceiver` again to re-register itself into the ReceiverTracker. That's
why we have to send `RegisterReceiver` again even there's no location or other
info changes.
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