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  1. Flink
  2. FLINK-5484

Kryo serialization changed between 1.1 and 1.2

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      Description

      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:

      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
      

      Running the same program with 1.2 and triggering and resuming a savepoint works.

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              • Assignee:
                Unassigned
                Reporter:
                uce Ufuk Celebi
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                • Created:
                  Updated:
                  Resolved: