Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/5554#discussion_r28608673
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/JobGenerator.scala
---
@@ -70,22 +68,23 @@ class JobGenerator(jobScheduler: JobScheduler) extends
Logging {
null
}
- // eventActor is created when generator starts.
+ // eventLoop is created when generator starts.
// This not being null means the scheduler has been started and not
stopped
- private var eventActor: ActorRef = null
+ private var eventLoop: EventLoop[JobGeneratorEvent] = null
// last batch whose completion,checkpointing and metadata cleanup has
been completed
private var lastProcessedBatch: Time = null
/** Start generation of jobs */
def start(): Unit = synchronized {
- if (eventActor != null) return // generator has already been started
+ if (eventLoop != null) return // generator has already been started
- eventActor = ssc.env.actorSystem.actorOf(Props(new Actor {
- override def receive: PartialFunction[Any, Unit] = {
- case event: JobGeneratorEvent => processEvent(event)
- }
- }), "JobGenerator")
+ eventLoop = new EventLoop[JobGeneratorEvent]("JobGenerator") {
+ override protected def onReceive(event: JobGeneratorEvent): Unit =
processEvent(event)
+
+ override protected def onError(e: Throwable): Unit = logError("Error
in job generator", e)
+ }
+ eventLoop.start()
if (ssc.isCheckpointPresent) {
--- End diff --
add a blank line here
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