[GitHub] spark pull request #20039: [SPARK-22850][core] Ensure queued events are deli...

[Ngone51]

Github user Ngone51 commented on a diff in the pull request:

    https://github.com/apache/spark/pull/20039#discussion_r158573853
  
    --- Diff: 
core/src/main/scala/org/apache/spark/scheduler/LiveListenerBus.scala ---
    @@ -149,7 +158,11 @@ private[spark] class LiveListenerBus(conf: SparkConf) {
         }
     
         this.sparkContext = sc
    -    queues.asScala.foreach(_.start(sc))
    +    queues.asScala.foreach { q =>
    +      q.start(sc)
    +      queuedEvents.foreach(q.post)
    --- End diff --
    
    Ok，**synchronized** can avoid this problem.


---

---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org