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Date: Mon, 16 Oct 2017 10:39:00 +0000 (UTC)
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Subject: [jira] [Commented] (FLINK-7484) CaseClassSerializer.duplicate()
 does not perform proper deep copy
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archived-at: Mon, 16 Oct 2017 10:39:06 -0000


    [ https://issues.apache.org/jira/browse/FLINK-7484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16205691#comment-16205691 ] 

ASF GitHub Bot commented on FLINK-7484:
---------------------------------------

Github user zentol commented on the issue:

    https://github.com/apache/flink/pull/4822
  
    @aljoscha This PR can be closed since it was merged for 1.3 and master.


> CaseClassSerializer.duplicate() does not perform proper deep copy
> -----------------------------------------------------------------
>
>                 Key: FLINK-7484
>                 URL: https://issues.apache.org/jira/browse/FLINK-7484
>             Project: Flink
>          Issue Type: Sub-task
>          Components: CEP, DataStream API, Scala API
>    Affects Versions: 1.3.2
>         Environment: Flink 1.3.2 , Yarn Cluster, FsStateBackend
>            Reporter: Shashank Agarwal
>            Assignee: Aljoscha Krettek
>            Priority: Blocker
>             Fix For: 1.4.0, 1.3.3
>
>
> I am using many CEP's and Global Window. I am getting following error sometimes and application  crashes. I have checked logically there's no flow in the program. Here ItemPojo is a Pojo class and we are using java.utill.List[ItemPojo]. We are using Scala DataStream API please find attached logs.
> {code}
> 2017-08-17 10:04:12,814 INFO  org.apache.flink.runtime.taskmanager.Task                     - TriggerWindow(GlobalWindows(), ListStateDescriptor{serializer=org.apache.flink.api.common.typeutils.base.ListSerializer@6d36aa3c}, co.thirdwatch.trigger.TransactionTrigger@5707c1cb, WindowedStream.apply(WindowedStream.scala:582)) -> Flat Map -> Map -> Sink: Saving CSV Features Sink (1/2) (06c0d4d231bc620ba9e7924b9b0da8d1) switched from RUNNING to FAILED.
> com.esotericsoftware.kryo.KryoException: java.lang.IndexOutOfBoundsException: Index: 7, Size: 5
> Serialization trace:
> category (co.thirdwatch.pojo.ItemPojo)
> underlying (scala.collection.convert.Wrappers$SeqWrapper)
> 	at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
> 	at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:528)
> 	at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:761)
> 	at com.twitter.chill.TraversableSerializer.read(Traversable.scala:43)
> 	at com.twitter.chill.TraversableSerializer.read(Traversable.scala:21)
> 	at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:679)
> 	at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106)
> 	at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:528)
> 	at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:657)
> 	at org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.copy(KryoSerializer.java:190)
> 	at org.apache.flink.api.scala.typeutils.CaseClassSerializer.copy(CaseClassSerializer.scala:101)
> 	at org.apache.flink.api.scala.typeutils.CaseClassSerializer.copy(CaseClassSerializer.scala:32)
> 	at org.apache.flink.runtime.state.ArrayListSerializer.copy(ArrayListSerializer.java:74)
> 	at org.apache.flink.runtime.state.ArrayListSerializer.copy(ArrayListSerializer.java:34)
> 	at org.apache.flink.runtime.state.heap.CopyOnWriteStateTable.get(CopyOnWriteStateTable.java:279)
> 	at org.apache.flink.runtime.state.heap.CopyOnWriteStateTable.get(CopyOnWriteStateTable.java:296)
> 	at org.apache.flink.runtime.state.heap.HeapListState.add(HeapListState.java:77)
> 	at org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.processElement(WindowOperator.java:442)
> 	at org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:206)
> 	at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:69)
> 	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:263)
> 	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:702)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.IndexOutOfBoundsException: Index: 7, Size: 5
> 	at java.util.ArrayList.rangeCheck(ArrayList.java:653)
> 	at java.util.ArrayList.get(ArrayList.java:429)
> 	at com.esotericsoftware.kryo.util.MapReferenceResolver.getReadObject(MapReferenceResolver.java:42)
> 	at com.esotericsoftware.kryo.Kryo.readReferenceOrNull(Kryo.java:805)
> 	at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:728)
> 	at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:113)
> 	... 22 more
> 2017-08-17 10:04:12,816 INFO  org.apache.flink.runtime.taskmanager.Task                     - Freeing task resources for TriggerWindow(GlobalWindows(), ListStateDescriptor{serializer=org.apache.flink.api.common.typeutils.base.ListSerializer@6d36aa3c}, co.thirdwatch.trigger.TransactionTrigger@5707c1cb, WindowedStream.apply(WindowedStream.scala:582)) -> Flat Map -> Map -> Sink: Saving CSV Features Sink (1/2) (06c0d4d231bc620ba9e7924b9b0da8d1).
> 2017-08-17 10:04:12,816 INFO  org.apache.flink.runtime.taskmanager.Task                     - Ensuring all FileSystem streams are closed for task TriggerWindow(GlobalWindows(), ListStateDescriptor{serializer=org.apache.flink.api.common.typeutils.base.ListSerializer@6d36aa3c}, co.thirdwatch.trigger.TransactionTrigger@5707c1cb, WindowedStream.apply(WindowedStream.scala:582)) -> Flat Map -> Map -> Sink: Saving CSV Features Sink (1/2) (06c0d4d231bc620ba9e7924b9b0da8d1) [FAILED]
> {code}


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