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https://issues.apache.org/jira/browse/FLINK-2450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andra Lungu resolved FLINK-2450.
--------------------------------
Resolution: Not A Problem
> IndexOutOfBoundsException in KryoSerializer
> -------------------------------------------
>
> Key: FLINK-2450
> URL: https://issues.apache.org/jira/browse/FLINK-2450
> Project: Flink
> Issue Type: Bug
> Components: Type Serialization System
> Affects Versions: 0.9, master
> Reporter: Ufuk Celebi
> Fix For: 0.10, 0.9.1
>
>
> The following Exception has been reported by [~andralungu]:
> {code}
> Caused by: java.lang.Exception: The data preparation for task 'CoGroup
> (CoGroup at groupReduceOnNeighbors(Graph.java:1405))' , caused an error:
> Error obtaining the sorted input: Thread 'SortMerger spilling thread'
> terminated due to an exception: Index: 53, Size: 0
> at
> org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:476)
> at
> org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:366)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:576)
> at java.lang.Thread.run(Thread.java:722)
> Caused by: java.lang.RuntimeException: Error obtaining the sorted input:
> Thread 'SortMerger spilling thread' terminated due to an exception: Index:
> 53, Size: 0
> at
> org.apache.flink.runtime.operators.sort.UnilateralSortMerger.getIterator(UnilateralSortMerger.java:607)
> at
> org.apache.flink.runtime.operators.RegularPactTask.getInput(RegularPactTask.java:1096)
> at
> org.apache.flink.runtime.operators.CoGroupDriver.prepare(CoGroupDriver.java:98)
> at
> org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:471)
> ... 3 more
> Caused by: java.io.IOException: Thread 'SortMerger spilling thread'
> terminated due to an exception: Index: 53, Size: 0
> at
> org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ThreadBase.run(UnilateralSortMerger.java:784)
> Caused by: java.lang.IndexOutOfBoundsException: Index: 53, Size: 0
> at java.util.ArrayList.rangeCheck(ArrayList.java:604)
> at java.util.ArrayList.get(ArrayList.java:382)
> at
> com.esotericsoftware.kryo.util.MapReferenceResolver.getReadObject(MapReferenceResolver.java:42)
> at com.esotericsoftware.kryo.Kryo.readReferenceOrNull(Kryo.java:805)
> at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:759)
> at
> org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.deserialize(KryoSerializer.java:211)
> at
> org.apache.flink.api.java.typeutils.runtime.TupleSerializer.deserialize(TupleSerializer.java:127)
> at
> org.apache.flink.api.java.typeutils.runtime.TupleSerializer.deserialize(TupleSerializer.java:30)
> at
> org.apache.flink.api.java.typeutils.runtime.TupleSerializer.deserialize(TupleSerializer.java:127)
> at
> org.apache.flink.api.java.typeutils.runtime.TupleSerializer.deserialize(TupleSerializer.java:30)
> at
> org.apache.flink.runtime.operators.sort.NormalizedKeySorter.writeToOutput(NormalizedKeySorter.java:531)
> at
> org.apache.flink.runtime.operators.sort.UnilateralSortMerger$SpillingThread.go(UnilateralSortMerger.java:1328)
> at
> org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ThreadBase.run(UnilateralSortMerger.java:781)
> {code}
> See FLINK-2412 for example program and data.
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