Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/8340#discussion_r37675815
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/ReceiverTracker.scala
---
@@ -244,24 +244,43 @@ class ReceiverTracker(ssc: StreamingContext,
skipReceiverLaunch: Boolean = false
}
if (isTrackerStopping || isTrackerStopped) {
- false
- } else if (!scheduleReceiver(streamId).contains(hostPort)) {
- // Refuse it since it's scheduled to a wrong executor
- false
+ return false
+ }
+
+ val scheduledExecutors =
receiverTrackingInfos(streamId).scheduledExecutors
+ if (scheduledExecutors.nonEmpty) {
+ // This receiver is registering at the first time, it's scheduled by
+ // ReceiverSchedulingPolicy.scheduleReceivers. So use
"scheduledExecutors" to check it.
+ if (!scheduledExecutors.get.contains(hostPort)) {
--- End diff --
Same question as below, why handle the scheduling and rescheduling cases
differently.
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