[jira] [Created] (FLINK-13849) The back-pressure monitoring tab in Web UI may cause errors

[Shang Yuanchun (Jira)]

Xingcan Cui created FLINK-13849:
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             Summary: The back-pressure monitoring tab in Web UI may cause errors
                 Key: FLINK-13849
                 URL: https://issues.apache.org/jira/browse/FLINK-13849
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Web Frontend
    Affects Versions: 1.9.0
            Reporter: Xingcan Cui


Clicking the back-pressure monitoring tab for a finished job in Web UI will cause an internal server error. The exceptions are as follows.
{code:java}
2019-08-26 01:23:54,845 ERROR org.apache.flink.runtime.rest.handler.job.JobVertexBackPressureHandler - Unhandled exception.
org.apache.flink.runtime.messages.FlinkJobNotFoundException: Could not find Flink job (09e107685e0b81b443b556062debb443)
    at org.apache.flink.runtime.dispatcher.Dispatcher.getJobMasterGatewayFuture(Dispatcher.java:825)
    at org.apache.flink.runtime.dispatcher.Dispatcher.requestOperatorBackPressureStats(Dispatcher.java:524)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:279)
    at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:194)
    at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:74)
    at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:152)
    at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)
    at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)
    at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)
    at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)
    at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:170)
    at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
    at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
    at akka.actor.Actor$class.aroundReceive(Actor.scala:517)
    at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225)
    at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592)
    at akka.actor.ActorCell.invoke(ActorCell.scala:561)
    at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)
    at akka.dispatch.Mailbox.run(Mailbox.scala:225)
    at akka.dispatch.Mailbox.exec(Mailbox.scala:235)
    at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
    at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
    at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
    at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
{code}



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