Sajeev Ramakrishnan created FLINK-4393: ------------------------------------------
Summary: Failed to serialize accumulators for task Key: FLINK-4393 URL: https://issues.apache.org/jira/browse/FLINK-4393 Project: Flink Issue Type: Bug Components: Table API & SQL Affects Versions: 1.1.0 Environment: Redhat 6 Reporter: Sajeev Ramakrishnan Dear Team, I am getting the below exception while trying to use the Table API by looping through the DataSet using collect() method. 2016-08-15 07:18:52,503 WARN org.apache.flink.runtime.accumulators.AccumulatorRegistry - Failed to serialize accumulators for task. java.lang.OutOfMemoryError at java.io.ByteArrayOutputStream.hugeCapacity(ByteArrayOutputStream.java:123) at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:117) at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93) at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:153) at java.io.ObjectOutputStream$BlockDataOutputStream.drain(ObjectOutputStream.java:1877) at java.io.ObjectOutputStream$BlockDataOutputStream.setBlockDataMode(ObjectOutputStream.java:1786) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1189) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) at org.apache.flink.util.InstantiationUtil.serializeObject(InstantiationUtil.java:301) at org.apache.flink.util.SerializedValue.<init>(SerializedValue.java:52) at org.apache.flink.runtime.accumulators.AccumulatorSnapshot.<init>(AccumulatorSnapshot.java:58) at org.apache.flink.runtime.accumulators.AccumulatorRegistry.getSnapshot(AccumulatorRegistry.java:75) at org.apache.flink.runtime.taskmanager.TaskManager.unregisterTaskAndNotifyFinalState(TaskManager.scala:1248) at org.apache.flink.runtime.taskmanager.TaskManager.org$apache$flink$runtime$taskmanager$TaskManager$$handleTaskMessage(TaskManager.scala:446) at org.apache.flink.runtime.taskmanager.TaskManager$$anonfun$handleMessage$1.applyOrElse(TaskManager.scala:292) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25) at org.apache.flink.runtime.LeaderSessionMessageFilter$$anonfun$receive$1.applyOrElse(LeaderSessionMessageFilter.scala:44) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25) at org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33) at org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28) at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118) at org.apache.flink.runtime.LogMessages$$anon$1.applyOrElse(LogMessages.scala:28) at akka.actor.Actor$class.aroundReceive(Actor.scala:465) at org.apache.flink.runtime.taskmanager.TaskManager.aroundReceive(TaskManager.scala:124) 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$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) Suppressed: java.lang.OutOfMemoryError at java.io.ByteArrayOutputStream.hugeCapacity(ByteArrayOutputStream.java:123) at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:117) at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93) at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:153) at java.io.ObjectOutputStream$BlockDataOutputStream.drain(ObjectOutputStream.java:1877) at java.io.ObjectOutputStream$BlockDataOutputStream.flush(ObjectOutputStream.java:1822) at java.io.ObjectOutputStream.flush(ObjectOutputStream.java:719) at java.io.ObjectOutputStream.close(ObjectOutputStream.java:740) at org.apache.flink.util.InstantiationUtil.serializeObject(InstantiationUtil.java:303) ... 28 more 2016-08-15 07:18:52,508 ERROR org.apache.flink.runtime.executiongraph.ExecutionGraph - Failed to deserialize final accumulator results. java.lang.NullPointerException at org.apache.flink.runtime.executiongraph.ExecutionGraph.updateState(ExecutionGraph.java:1176) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$5.apply$mcV$sp(JobManager.scala:615) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$5.apply(JobManager.scala:614) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$5.apply(JobManager.scala:614) at scala.concurrent.impl.Future$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) 2016-08-15 07:18:52,509 INFO org.apache.flink.runtime.executiongraph.ExecutionGraph - DataSink (collect()) (1/1) (71714abe057281428f5ca2bfe980b750) switched from RUNNING to FAILED 2016-08-15 07:18:52,510 INFO org.apache.flink.runtime.jobmanager.JobManager - Status of job 01e11bf3947869463e00a3f53196384d (Flink Java Job at Mon Aug 15 07:17:27 BST 2016) changed to FAILING. java.lang.NullPointerException at org.apache.flink.runtime.executiongraph.ExecutionGraph.updateState(ExecutionGraph.java:1176) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$5.apply$mcV$sp(JobManager.scala:615) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$5.apply(JobManager.scala:614) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$5.apply(JobManager.scala:614) at scala.concurrent.impl.Future$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) 2016-08-15 07:18:52,510 INFO org.apache.flink.runtime.taskmanager.TaskManager - Discarding the results produced by task execution a9646a1cab421fe1f3ce6fd544cfbd84 2016-08-15 07:18:52,512 INFO org.apache.flink.runtime.taskmanager.TaskManager - Discarding the results produced by task execution 71714abe057281428f5ca2bfe980b750 2016-08-15 07:18:52,514 INFO org.apache.flink.runtime.jobmanager.JobManager - Status of job 01e11bf3947869463e00a3f53196384d (Flink Java Job at Mon Aug 15 07:17:27 BST 2016) changed to FAILED. java.lang.NullPointerException at org.apache.flink.runtime.executiongraph.ExecutionGraph.updateState(ExecutionGraph.java:1176) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$5.apply$mcV$sp(JobManager.scala:615) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$5.apply(JobManager.scala:614) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$5.apply(JobManager.scala:614) at scala.concurrent.impl.Future$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) Could you please throw some light on this? Regards, Sajeev -- This message was sent by Atlassian JIRA (v6.3.4#6332)