Hi, which version of Flink are you using? There has been a recent fix for the issue: https://issues.apache.org/jira/browse/FLINK-3762
Regards, Robert On Tue, Jun 21, 2016 at 5:22 PM, Debaditya Roy <[email protected]> wrote: > Hello users, > > I am getting an error from the flat map function while running my program. > My program is sending an object of type Mat(OpenCV) from the custom source > function and passing it to the flat map function for processing. However > while executing I am getting this error: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > *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:717) > at > org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply(JobManager.scala:663) > at > org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply(JobManager.scala:663) > at > scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) > at > scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) > at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:41) at > akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:401) > at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) > at > scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.pollAndExecAll(ForkJoinPool.java:1253) > at > scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1346) > at > scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) > at > scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)Caused > by: java.lang.StackOverflowError at > com.esotericsoftware.kryo.util.DefaultClassResolver.writeClass(DefaultClassResolver.java:79) > at com.esotericsoftware.kryo.Kryo.writeClass(Kryo.java:488) at > com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:57) > at > com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495) > at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523) at > com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61) > at > com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495) > at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523) at > com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61) > at > com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495) > at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523) at > com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61) > at > com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495) > at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523) at > com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61) > at > com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495) > at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523) at > com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61) > at > com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495) > at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523) at > com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61) > at > com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495) > at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523) at > com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61) > at > com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495) > at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523) * > Any help would be highly appreciated. Thanks in advance. > > Warm Regards, > Debaditya >
