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Date: Tue, 26 Dec 2017 09:56:00 +0000 (UTC)
From: "Steve Layland (JIRA)" <jira@apache.org>
To: issues@flink.apache.org
Message-ID: <JIRA.13127193.1514282108000.532019.1514282160348@Atlassian.JIRA>
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Subject: [jira] [Created] (FLINK-8320) Flink cluster does not work on Java 9
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archived-at: Tue, 26 Dec 2017 09:56:08 -0000

Steve Layland created FLINK-8320:
------------------------------------

             Summary: Flink cluster does not work on Java 9
                 Key: FLINK-8320
                 URL: https://issues.apache.org/jira/browse/FLINK-8320
             Project: Flink
          Issue Type: Bug
    Affects Versions: 1.4.0
         Environment: flink-1.4.0, mac os x, 10.13.1
            Reporter: Steve Layland


Recently got a new macbook and figured it was a good time to install java 9 and try it out. I didn't realize that Java 9 was such a breaking update (eg: https://blog.codefx.org/java/java-9-migration-guide/) and took the Flink documentation at face value and assumed that Java 7+ or higher would be fine.

Here's is what happens after starting a local cluster and attempting to run the sample WordCount program under Java 9:

{noformat}
flink-1.4.0 $ export JAVA_HOME=$(/usr/libexec/java_home -v 9)

cru@lappy:flink-1.4.0 $ java -version
java version "9.0.1"
Java(TM) SE Runtime Environment (build 9.0.1+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.1+11, mixed mode)

cru@lappy:flink-1.4.0 $ bin/start-cluster.sh
Starting cluster.
Starting jobmanager daemon on host lappy.local.
Starting taskmanager daemon on host lappy.local.

cru@lappy:flink-1.4.0 $ bin/flink run examples/streaming/WordCount.jar
Cluster configuration: Standalone cluster with JobManager at localhost/127.0.0.1:6123
Using address localhost:6123 to connect to JobManager.
JobManager web interface address http://localhost:8081
Starting execution of program
Executing WordCount example with default input data set.
Use --input to specify file input.
Printing result to stdout. Use --output to specify output path.
Submitting job with JobID: ee054ffeb4784848143b76b7d51d99c1. Waiting for job completion.

------------------------------------------------------------
 The program finished with the following exception:

org.apache.flink.client.program.ProgramInvocationException: The program execution failed: Couldn't retrieve the JobExecutionResult from the JobManager.
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:492)
	at org.apache.flink.client.program.StandaloneClusterClient.submitJob(StandaloneClusterClient.java:105)
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:456)
	at org.apache.flink.streaming.api.environment.StreamContextEnvironment.execute(StreamContextEnvironment.java:66)
	at org.apache.flink.streaming.examples.wordcount.WordCount.main(WordCount.java:89)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:564)
	at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:525)
	at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:417)
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:396)
	at org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:802)
	at org.apache.flink.client.CliFrontend.run(CliFrontend.java:282)
	at org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1054)
	at org.apache.flink.client.CliFrontend$1.call(CliFrontend.java:1101)
	at org.apache.flink.client.CliFrontend$1.call(CliFrontend.java:1098)
	at org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)
	at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1098)
Caused by: org.apache.flink.runtime.client.JobExecutionException: Couldn't retrieve the JobExecutionResult from the JobManager.
	at org.apache.flink.runtime.client.JobClient.awaitJobResult(JobClient.java:300)
	at org.apache.flink.runtime.client.JobClient.submitJobAndWait(JobClient.java:387)
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:481)
	... 18 more
Caused by: org.apache.flink.runtime.client.JobClientActorConnectionTimeoutException: Lost connection to the JobManager.
	at org.apache.flink.runtime.client.JobClientActor.handleMessage(JobClientActor.java:219)
	at org.apache.flink.runtime.akka.FlinkUntypedActor.handleLeaderSessionID(FlinkUntypedActor.java:104)
	at org.apache.flink.runtime.akka.FlinkUntypedActor.onReceive(FlinkUntypedActor.java:71)
	at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:165)
	at akka.actor.Actor$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)
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.flink.shaded.akka.org.jboss.netty.util.internal.ByteBufferUtil (file:/Users/cru/proj/flink/flink-1.4.0/lib/flink-dist_2.11-1.4.0.jar) to method java.nio.DirectByteBuffer.cleaner()
WARNING: Please consider reporting this to the maintainers of org.apache.flink.shaded.akka.org.jboss.netty.util.internal.ByteBufferUtil
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
{noformat}

Strangely, the logs seemed to suggest that the JobManager was running fine before submitting the job, so figured this was just a problem with the client. The long timeout also made it seem like a low level network issue.

Changing to Java 8 (without bouncing the local cluster) similarly times out as well, but gives a slightly different error. Including it here just for posterity in case someone doesn't bounce the server like I did (To be clear: in this case JobManager and TaskManager processes are still running under java 9.):

{noformat}
$ java -version
java version "1.8.0_151"
Java(TM) SE Runtime Environment (build 1.8.0_151-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.151-b12, mixed mode)

cru@lappy:flink-1.4.0 $ bin/flink run examples/streaming/WordCount.jar
Cluster configuration: Standalone cluster with JobManager at localhost/127.0.0.1:6123
Using address localhost:6123 to connect to JobManager.
JobManager web interface address http://localhost:8081
Starting execution of program
Executing WordCount example with default input data set.
Use --input to specify file input.
Printing result to stdout. Use --output to specify output path.
Submitting job with JobID: 6bd8fb1a904098473634a7290fbde812. Waiting for job completion.
Connected to JobManager at Actor[akka.tcp://flink@localhost:6123/user/jobmanager#1031166856] with leader session id 00000000-0000-0000-0000-000000000000.

------------------------------------------------------------
 The program finished with the following exception:

org.apache.flink.client.program.ProgramInvocationException: The program execution failed: Could not retrieve BlobServer address.
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:492)
	at org.apache.flink.client.program.StandaloneClusterClient.submitJob(StandaloneClusterClient.java:105)
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:456)
	at org.apache.flink.streaming.api.environment.StreamContextEnvironment.execute(StreamContextEnvironment.java:66)
	at org.apache.flink.streaming.examples.wordcount.WordCount.main(WordCount.java:89)
	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.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:525)
	at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:417)
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:396)
	at org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:802)
	at org.apache.flink.client.CliFrontend.run(CliFrontend.java:282)
	at org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1054)
	at org.apache.flink.client.CliFrontend$1.call(CliFrontend.java:1101)
	at org.apache.flink.client.CliFrontend$1.call(CliFrontend.java:1098)
	at org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)
	at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1098)
Caused by: org.apache.flink.runtime.client.JobSubmissionException: Could not retrieve BlobServer address.
	at org.apache.flink.runtime.client.JobSubmissionClientActor$1.call(JobSubmissionClientActor.java:166)
	at akka.dispatch.Futures$$anonfun$future$1.apply(Future.scala:97)
	at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
	at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
	at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:39)
	at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:415)
	at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
	at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
	at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
	at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.util.concurrent.TimeoutException
	at java.util.concurrent.CompletableFuture.timedGet(CompletableFuture.java:1771)
	at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1915)
	at org.apache.flink.runtime.client.JobSubmissionClientActor$1.call(JobSubmissionClientActor.java:160)
	... 9 more
{noformat}

While I get that supporting Java 9 completely is probably a larger task, at the very least we should update documentation / prereqs to say that Flink is not yet compatible.


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