[jira] [Created] (FLINK-8929) "UnknownTaskExecutorException: No TaskExecutor registered" when having tab open for taskmanager that does not exist (anymore)

["Florian Schmidt (JIRA)" <ji...@apache.org>]

Florian Schmidt created FLINK-8929:
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             Summary: "UnknownTaskExecutorException: No TaskExecutor registered" when having tab open for taskmanager that does not exist (anymore)
                 Key: FLINK-8929
                 URL: https://issues.apache.org/jira/browse/FLINK-8929
             Project: Flink
          Issue Type: Bug
            Reporter: Florian Schmidt


When having a browser tab open for logs of task manager that does not exist anymore (in my case http://localhost:8081/#/taskmanager/a460742356b7f02e448c6e785d34bf0c/log) it will print the following exception in the log at 
{code}
flink-florianschmidt-standalonesession-0-Florians-MBP.fritz.box.log
{code}

{code}
2018-03-12 17:34:47,420 ERROR org.apache.flink.runtime.rest.handler.taskmanager.TaskManagerDetailsHandler  - Implementation error: Unhandled exception.
org.apache.flink.runtime.resourcemanager.exceptions.UnknownTaskExecutorException: No TaskExecutor registered under a460742356b7f02e448c6e785d34bf0c.
	at org.apache.flink.runtime.resourcemanager.ResourceManager.requestTaskManagerInfo(ResourceManager.java:538)
	at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
	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:210)
	at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:154)
	at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleMessage(FencedAkkaRpcActor.java:66)
	at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.lambda$onReceive$1(AkkaRpcActor.java:132)
	at akka.actor.ActorCell$$anonfun$become$1.applyOrElse(ActorCell.scala:544)
	at akka.actor.Actor$class.aroundReceive(Actor.scala:502)
	at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:95)
	at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526)
	at akka.actor.ActorCell.invoke(ActorCell.scala:495)
	at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257)
	at akka.dispatch.Mailbox.run(Mailbox.scala:224)
	at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
	at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
	at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
	at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
	at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
{code}




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