I thought a bit about this error..in my job I was generating multiple
vertices with the same id.
Could this cause such errors? Maybe there could be a check about such
situations in Gelly..

On Tue, Jul 14, 2015 at 10:00 PM, Andra Lungu <lungu.an...@gmail.com> wrote:

> Hello,
>
> Sorry for the delay. The bug is not in Gelly, but is, as hinted in the
> exception and as can be seen in the logs, in Flink's Runtime. Mihail may
> actually be on to something. The bug is actually very similar to the one
> described in FLINK-1916.
>
> However, as can be seen in the discussion thread there, it's a bit
> difficult to fix it without some steps to reproduce. I unfortunately
> managed to reproduce it and have opened a Jira... FLINK-2360
> <https://issues.apache.org/jira/browse/FLINK-2360>. It's a similar delta
> iteration setting. Hope we can get some help with this.
>
> Thanks!
> Andra
>
> On Tue, Jul 14, 2015 at 2:12 PM, Mihail Vieru <
> vi...@informatik.hu-berlin.de> wrote:
>
>>  Hi,
>>
>> looks very similar to this bug:
>> https://issues.apache.org/jira/browse/FLINK-1916
>>
>> Best,
>> Mihail
>>
>>
>> On 14.07.2015 14:09, Andra Lungu wrote:
>>
>> Hi Flavio,
>>
>> Could you also show us a code snippet?
>>
>> On Tue, Jul 14, 2015 at 2:06 PM, Flavio Pompermaier <pomperma...@okkam.it
>> > wrote:
>>
>>> Hi to all,
>>> in my vertex centric iteration I get the following exception, am I doing
>>> something wrong or is it a bug of Gelly?
>>>
>>>  starting iteration [1]:  CoGroup (Messaging) (6/8)
>>> IterationHead(WorksetIteration (Vertex-centric iteration
>>> (test.gelly.functions.VUpdateFunction@1814786f
>>> | test.gelly.functions.VMessagingFunction@67eecbc2))) (4/8) switched to
>>> FAILED with exception.
>>> java.io.EOFException
>>>  at
>>> org.apache.flink.runtime.operators.hash.InMemoryPartition$WriteView.nextSegment(InMemoryPartition.java:333)
>>>  at
>>> org.apache.flink.runtime.memorymanager.AbstractPagedOutputView.advance(AbstractPagedOutputView.java:140)
>>>  at
>>> org.apache.flink.runtime.memorymanager.AbstractPagedOutputView.write(AbstractPagedOutputView.java:201)
>>>  at
>>> org.apache.flink.api.java.typeutils.runtime.DataOutputViewStream.write(DataOutputViewStream.java:39)
>>>  at com.esotericsoftware.kryo.io.Output.flush(Output.java:163)
>>>  at
>>> org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.serialize(KryoSerializer.java:187)
>>>  at
>>> org.apache.flink.api.java.typeutils.runtime.PojoSerializer.serialize(PojoSerializer.java:372)
>>>  at
>>> org.apache.flink.api.java.typeutils.runtime.TupleSerializer.serialize(TupleSerializer.java:116)
>>>  at
>>> org.apache.flink.api.java.typeutils.runtime.TupleSerializer.serialize(TupleSerializer.java:30)
>>>  at
>>> org.apache.flink.runtime.operators.hash.InMemoryPartition.appendRecord(InMemoryPartition.java:219)
>>>  at
>>> org.apache.flink.runtime.operators.hash.CompactingHashTable.insertOrReplaceRecord(CompactingHashTable.java:536)
>>>  at
>>> org.apache.flink.runtime.operators.hash.CompactingHashTable.buildTableWithUniqueKey(CompactingHashTable.java:347)
>>>  at
>>> org.apache.flink.runtime.iterative.task.IterationHeadPactTask.readInitialSolutionSet(IterationHeadPactTask.java:209)
>>>  at
>>> org.apache.flink.runtime.iterative.task.IterationHeadPactTask.run(IterationHeadPactTask.java:270)
>>>  at
>>> org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:362)
>>>  at org.apache.flink.runtime.taskmanager.Task.run(Task.java:559)
>>>  at java.lang.Thread.run(Thread.java:745)
>>>
>>>
>>>  Best,
>>> Flavio
>>>
>>
>>
>>
>

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