Hi Flink users, Flink Jobmanager throw a NotSerializableException when i used JobMasterGateway to get ExecutionGraph of a specific job with message RequestJob(jobID). Blow is the detail of Exception:
[ERROR] [akka.remote.EndpointWriter] - Transient association error (association remains live) java.io.NotSerializableException: org.apache.flink.runtime.executiongraph.ExecutionGraph at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) at akka.serialization.JavaSerializer$$anonfun$toBinary$1.apply$mcV$sp(Serializer.scala:129) at akka.serialization.JavaSerializer$$anonfun$toBinary$1.apply(Serializer.scala:129) at akka.serialization.JavaSerializer$$anonfun$toBinary$1.apply(Serializer.scala:129) at scala.util.DynamicVariable.withValue(DynamicVariable.scala:58) at akka.serialization.JavaSerializer.toBinary(Serializer.scala:129) at akka.remote.MessageSerializer$.serialize(MessageSerializer.scala:36) at akka.remote.EndpointWriter$$anonfun$serializeMessage$1.apply(Endpoint.scala:875) at akka.remote.EndpointWriter$$anonfun$serializeMessage$1.apply(Endpoint.scala:875) at scala.util.DynamicVariable.withValue(DynamicVariable.scala:58) at akka.remote.EndpointWriter.serializeMessage(Endpoint.scala:874) at akka.remote.EndpointWriter.writeSend(Endpoint.scala:769) at akka.remote.EndpointWriter$$anonfun$4.applyOrElse(Endpoint.scala:744) at akka.actor.Actor$class.aroundReceive(Actor.scala:467) at akka.remote.EndpointActor.aroundReceive(Endpoint.scala:437) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516) at akka.actor.ActorCell.invoke(ActorCell.scala:487) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238) at akka.dispatch.Mailbox.run(Mailbox.scala:220) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) So,is it a bug or the way to get job’s executionGraph is invalid. Best,XiangWei