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From "Robert Metzger (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-3021) Job submission times out due to classloading issue on JobManager
Date Tue, 17 Nov 2015 08:24:10 GMT
Robert Metzger created FLINK-3021:
-------------------------------------

             Summary: Job submission times out due to classloading issue on JobManager
                 Key: FLINK-3021
                 URL: https://issues.apache.org/jira/browse/FLINK-3021
             Project: Flink
          Issue Type: Bug
          Components: JobManager
    Affects Versions: 0.10.0
            Reporter: Robert Metzger
            Priority: Critical


A user reported the following issue when submitting a very simple job using the {{DataStream}}
API:

{code}
Caused by: org.apache.flink.runtime.client.JobExecutionException: Communication with JobManager
failed: Job submission to the JobManager timed out.
	at org.apache.flink.runtime.client.JobClient.submitJobAndWait(JobClient.java:141)
	at org.apache.flink.client.program.Client.runBlocking(Client.java:368)
	... 13 more
Caused by: org.apache.flink.runtime.client.JobClientActorSubmissionTimeoutException: Job submission
to the JobManager timed out.
	at org.apache.flink.runtime.client.JobClientActor.handleMessage(JobClientActor.java:255)
	at org.apache.flink.runtime.akka.FlinkUntypedActor.handleLeaderSessionID(FlinkUntypedActor.java:88)
	at org.apache.flink.runtime.akka.FlinkUntypedActor.onReceive(FlinkUntypedActor.java:68)
	at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:167)
	at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
{code}

The problem is that akka can not deserialize the job submit message on the JobManager. From
the logs, the issue becomes apparent:
{code}
22:14:12,964 DEBUG akka.serialization.Serialization(akka://flink)                - Using serializer[akka.serialization.JavaSerializer]
for message [akka.actor.ActorIdentity]
22:14:12,995 DEBUG akka.serialization.Serialization(akka://flink)                - Using serializer[akka.serialization.JavaSerializer]
for message [java.lang.Integer]
22:14:13,007 DEBUG org.apache.flink.runtime.blob.BlobServerConnection            - Received
PUT request for content addressable BLOB
22:14:13,134 ERROR akka.remote.EndpointWriter                                    - AssociationError
[akka.tcp://flink@127.0.0.1:6123] <- [akka.tcp://flink@127.0.0.1:58424]: Error [com.dataartisans.SimpleEntity]
[
java.lang.ClassNotFoundException: com.dataartisans.SimpleEntity
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:274)
	at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:625)
	at akka.util.ClassLoaderObjectInputStream.resolveClass(ClassLoaderObjectInputStream.scala:19)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1612)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517)
	at java.io.ObjectInputStream.readClass(ObjectInputStream.java:1483)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1333)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
	at java.util.HashMap.readObject(HashMap.java:1180)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
	at akka.serialization.JavaSerializer$$anonfun$1.apply(Serializer.scala:136)
	at scala.util.DynamicVariable.withValue(DynamicVariable.scala:57)
	at akka.serialization.JavaSerializer.fromBinary(Serializer.scala:136)
	at akka.serialization.Serialization$$anonfun$deserialize$1.apply(Serialization.scala:104)
	at scala.util.Try$.apply(Try.scala:161)
	at akka.serialization.Serialization.deserialize(Serialization.scala:98)
	at akka.remote.MessageSerializer$.deserialize(MessageSerializer.scala:23)
	at akka.remote.DefaultMessageDispatcher.payload$lzycompute$1(Endpoint.scala:58)
	at akka.remote.DefaultMessageDispatcher.payload$1(Endpoint.scala:58)
	at akka.remote.DefaultMessageDispatcher.dispatch(Endpoint.scala:76)
	at akka.remote.EndpointReader$$anonfun$receive$2.applyOrElse(Endpoint.scala:937)
	at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
	at akka.remote.EndpointActor.aroundReceive(Endpoint.scala:415)
	at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
	at akka.actor.ActorCell.invoke(ActorCell.scala:487)
	at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)
	at akka.dispatch.Mailbox.run(Mailbox.scala:221)
	at akka.dispatch.Mailbox.exec(Mailbox.scala:231)
	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)
]
22:14:13,137 WARN  akka.remote.ReliableDeliverySupervisor                        - Association
with remote system [akka.tcp://flink@127.0.0.1:58424] has failed, address is now gated for
[5000] ms. Reason is: [com.dataartisans.SimpleEntity].
22:14:13,142 DEBUG akka.remote.EndpointWriter                                    - Disassociated
[akka.tcp://flink@127.0.0.1:6123] <- [akka.tcp://flink@127.0.0.1:58424]
{code}

I suspect the issue is that the job is using an AvroInputFormat which holds a reference to
the POJO.



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