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From "Stephan Ewen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-5484) Kryo serialization changed between 1.1 and 1.2
Date Mon, 16 Jan 2017 14:43:26 GMT

    [ https://issues.apache.org/jira/browse/FLINK-5484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15824086#comment-15824086
] 

Stephan Ewen commented on FLINK-5484:
-------------------------------------

Good catch. My first thought is that this may be due to a bump in the Chill dependency, which
registers more classes (or in a different order) by default.


> Kryo serialization changed between 1.1 and 1.2
> ----------------------------------------------
>
>                 Key: FLINK-5484
>                 URL: https://issues.apache.org/jira/browse/FLINK-5484
>             Project: Flink
>          Issue Type: Bug
>          Components: Type Serialization System
>            Reporter: Ufuk Celebi
>
> I think the way that Kryo serializes data changed between 1.1 and 1.2.
> I have a generic Object that is serialized as part of a 1.1 savepoint that I cannot resume
from with 1.2:
> {code}
> org.apache.flink.client.program.ProgramInvocationException: The program execution failed:
Job execution failed.
> 	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:427)
> 	at org.apache.flink.client.program.StandaloneClusterClient.submitJob(StandaloneClusterClient.java:101)
> 	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:400)
> 	at org.apache.flink.streaming.api.environment.StreamContextEnvironment.execute(StreamContextEnvironment.java:68)
> 	at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1486)
> 	at com.dataartisans.DidKryoChange.main(DidKryoChange.java:74)
> 	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:528)
> 	at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:419)
> 	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:339)
> 	at org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:831)
> 	at org.apache.flink.client.CliFrontend.run(CliFrontend.java:256)
> 	at org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1073)
> 	at org.apache.flink.client.CliFrontend$2.call(CliFrontend.java:1120)
> 	at org.apache.flink.client.CliFrontend$2.call(CliFrontend.java:1117)
> 	at org.apache.flink.runtime.security.HadoopSecurityContext$1.run(HadoopSecurityContext.java:43)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:422)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
> 	at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:40)
> 	at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1117)
> Caused by: org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
> 	at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply$mcV$sp(JobManager.scala:900)
> 	at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply(JobManager.scala:843)
> 	at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply(JobManager.scala:843)
> 	at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
> 	at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
> 	at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40)
> 	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)
> Caused by: java.lang.IllegalStateException: Could not initialize keyed state backend.
> 	at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initKeyedState(AbstractStreamOperator.java:286)
> 	at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:199)
> 	at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeOperators(StreamTask.java:649)
> 	at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeState(StreamTask.java:636)
> 	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:254)
> 	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:654)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.RuntimeException: com.esotericsoftware.kryo.KryoException: Unable
to find class: f
> 	at com.twitter.chill.java.UnmodifiableJavaCollectionSerializer.read(UnmodifiableJavaCollectionSerializer.java:62)
> 	at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:761)
> 	at org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.deserialize(KryoSerializer.java:232)
> 	at org.apache.flink.migration.runtime.state.memory.AbstractMemStateSnapshot.deserialize(AbstractMemStateSnapshot.java:88)
> 	at org.apache.flink.runtime.state.heap.HeapKeyedStateBackend.restoreHeapState(HeapKeyedStateBackend.java:448)
> 	at org.apache.flink.runtime.state.heap.HeapKeyedStateBackend.restoreOldSavepointKeyedState(HeapKeyedStateBackend.java:406)
> 	at org.apache.flink.runtime.state.heap.HeapKeyedStateBackend.restore(HeapKeyedStateBackend.java:240)
> 	at org.apache.flink.streaming.runtime.tasks.StreamTask.createKeyedStateBackend(StreamTask.java:784)
> 	at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initKeyedState(AbstractStreamOperator.java:277)
> 	... 6 more
> Caused by: com.esotericsoftware.kryo.KryoException: Unable to find class: f
> 	at com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:138)
> 	at com.esotericsoftware.kryo.util.DefaultClassResolver.readClass(DefaultClassResolver.java:115)
> 	at com.esotericsoftware.kryo.Kryo.readClass(Kryo.java:641)
> 	at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:752)
> 	at com.twitter.chill.java.UnmodifiableJavaCollectionSerializer.read(UnmodifiableJavaCollectionSerializer.java:59)
> 	... 14 more
> Caused by: java.lang.ClassNotFoundException: f
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> 	at java.lang.Class.forName0(Native Method)
> 	at java.lang.Class.forName(Class.java:348)
> 	at com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:136)
> 	... 18 more
> {code}
> Running the same program with 1.2 and triggering and resuming a savepoint works.



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