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https://issues.apache.org/jira/browse/FLINK-1531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14318440#comment-14318440
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ASF GitHub Bot commented on FLINK-1531:
---------------------------------------
Github user rmetzger commented on the pull request:
https://github.com/apache/flink/pull/391#issuecomment-74097085
Looks good
+1
> Custom Kryo Serializer fails in itertation scenario
> ---------------------------------------------------
>
> Key: FLINK-1531
> URL: https://issues.apache.org/jira/browse/FLINK-1531
> Project: Flink
> Issue Type: Bug
> Components: Iterations
> Affects Versions: 0.9
> Reporter: Johannes
> Priority: Minor
> Attachments: TestKryoIterationSerializer.java
>
>
> When using iterations with a custom serializer for a domain object, the
> iteration will fail.
> {code:java}
> org.apache.flink.runtime.client.JobExecutionException:
> com.esotericsoftware.kryo.KryoException: Buffer underflow
> at
> org.apache.flink.api.java.typeutils.runtime.NoFetchingInput.require(NoFetchingInput.java:76)
> at com.esotericsoftware.kryo.io.Input.readVarInt(Input.java:355)
> at
> com.esotericsoftware.kryo.util.DefaultClassResolver.readClass(DefaultClassResolver.java:109)
> at com.esotericsoftware.kryo.Kryo.readClass(Kryo.java:641)
> at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:752)
> at
> org.apache.flink.api.java.typeutils.runtime.KryoSerializer.deserialize(KryoSerializer.java:198)
> at
> org.apache.flink.api.java.typeutils.runtime.KryoSerializer.deserialize(KryoSerializer.java:203)
> at
> org.apache.flink.runtime.io.disk.InputViewIterator.next(InputViewIterator.java:43)
> at
> org.apache.flink.runtime.iterative.task.IterationHeadPactTask.streamOutFinalOutputBulk(IterationHeadPactTask.java:404)
> at
> org.apache.flink.runtime.iterative.task.IterationHeadPactTask.run(IterationHeadPactTask.java:377)
> at
> org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:360)
> at
> org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:204)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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