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

    https://github.com/apache/flink/pull/979#discussion_r36169844
  
    --- Diff: 
flink-runtime/src/main/java/org/apache/flink/runtime/client/JobClientActor.java 
---
    @@ -59,11 +87,50 @@ public JobClientActor(
                this.leaderSessionID = 
Preconditions.checkNotNull(leaderSessionID, "The leader session ID option must 
not be null.");
     
                this.sysoutUpdates = sysoutUpdates;
    +           // set this to -1 to indicate the job hasn't been created yet.
    +           this.currentJobCreatedAt = -1;
        }
        
        @Override
        protected void handleMessage(Object message) {
                
    +           // ======= Job status messages on regular intervals 
==============
    +           if(message instanceof JobManagerMessages.CurrentJobStatus){
    +                   JobStatus statusReport = 
((JobManagerMessages.CurrentJobStatus) message).status();
    +                   long timeDiff;
    +                   switch(statusReport){
    +                           case RUNNING:
    +                                   // Vincent, we happy?
    +                                   this.currentJobCreatedAt = -1;
    +                                   break;
    +                           case FINISHED:
    +                                   // Yeah! We happy!
    +                                   this.currentJobCreatedAt = -1;
    +                                   break;
    +                           case CREATED:
    --- End diff --
    
    For simple jobs, Flink supports queued scheduling. Thus, it might be the 
case that one job stays queued up for quite some time until its execution gets 
started.


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