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

    https://github.com/apache/flink/pull/5062#discussion_r153804310
  
    --- Diff: 
flink-queryable-state/flink-queryable-state-runtime/src/test/java/org/apache/flink/queryablestate/itcases/AbstractQueryableStateTestBase.java
 ---
    @@ -359,12 +355,12 @@ public Integer getKey(Tuple2<Integer, Long> value) 
throws Exception {
                } finally {
                        // Free cluster resources
                        if (jobId != null) {
    -                           scala.concurrent.Future<CancellationSuccess> 
cancellation = cluster
    -                                           
.getLeaderGateway(deadline.timeLeft())
    +                           cluster.getLeaderGateway(deadline.timeLeft())
                                                .ask(new 
JobManagerMessages.CancelJob(jobId), deadline.timeLeft())
    -                                           
.mapTo(ClassTag$.MODULE$.<JobManagerMessages.CancellationSuccess>apply(JobManagerMessages.CancellationSuccess.class));
    +                                           
.mapTo(ClassTag$.MODULE$.<CancellationSuccess>apply(CancellationSuccess.class));
     
    -                           Await.ready(cancellation, deadline.timeLeft());
    +                           // we are not waiting for the cancellation to 
happen because the
    +                           // job has actually failed, as tested above.
    --- End diff --
    
    you can't guarantee this in the `finally` block. (for example if 
submitJobDetached failed but the job is actually running)


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