Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/7276#discussion_r34753069
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/ReceiverTracker.scala
---
@@ -371,4 +490,59 @@ class ReceiverTracker(ssc: StreamingContext,
skipReceiverLaunch: Boolean = false
logInfo("Sent stop signal to all " + receiverInfo.size + "
receivers")
}
}
+
+ def initReceiverTrackingInfos(receivers: Seq[Receiver[_]]): Unit =
synchronized {
+ for (receiver <- receivers) {
+ receiverPreferredLocations(receiver.streamId) =
receiver.preferredLocation
+ receiverTrackingInfos.put(receiver.streamId, ReceiverTrackingInfo(
+ receiver.streamId,
+ ReceiverState.INACTIVE,
+ None,
+ None))
+ }
+ }
+
+ private def getReceiverTrackingInfoMap(): Map[Int, ReceiverTrackingInfo]
=
+ receiverTrackingInfosLock.synchronized {
+ // Copy to an immutable Map so that we don't need to use
`synchronized` when using it
+ receiverTrackingInfos.toMap
+ }
+
+ private def updateReceiverScheduledLocations(
+ receiverId: Int, scheduledLocations: Seq[String]): Unit =
--- End diff --
I am not sure whether there is a formatting policy about it but I prefer
always using `{` and `}` in multiline methods.
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