Unfortunately I've recompiled and installed kafka from scratch today,
deleting all data. I'm still doing these tests, will send you
stacktrace if I would be able to repro it.

Thanks for help!

On Fri, Nov 1, 2013 at 6:13 PM, Neha Narkhede <neha.narkh...@gmail.com> wrote:
> Yes, could you send around the log4j file of the consumer around the time
> of the error in question.
>
> Thanks,
> Neha
>
>
> On Fri, Nov 1, 2013 at 11:35 AM, Kane Kane <kane.ist...@gmail.com> wrote:
>
>> Hello Neha, rest of the log goes to my consumer code, are you interested
>> in? It's a little bit modified version of ConsoleConsumer.
>>
>> Thanks.
>>
>>
>> On Fri, Nov 1, 2013 at 9:24 AM, Neha Narkhede <neha.narkh...@gmail.com
>> >wrote:
>>
>> > Could you send the entire consumer log?
>> >
>> >
>> > On Fri, Nov 1, 2013 at 7:45 AM, Kane Kane <kane.ist...@gmail.com> wrote:
>> >
>> > > Hello Neha, I think i might be hitting this. I didn't shutdown the
>> > consumer
>> > > (at least intentionally). Basically it was just an attempt to pipe ~1T
>> > > through kafka, i would wild guess it's related to log expansion.
>> Because
>> > > around the time it happened i saw messages about expanding log, is it
>> > > possible to be related?
>> > >
>> > > Thanks.
>> > >
>> > >
>> > > On Fri, Nov 1, 2013 at 3:50 AM, Neha Narkhede <neha.narkh...@gmail.com
>> > > >wrote:
>> > >
>> > > > I think you are hitting
>> > https://issues.apache.org/jira/browse/KAFKA-824.
>> > > > Was the consumer being shutdown at that time?
>> > > >
>> > > >
>> > > > On Fri, Nov 1, 2013 at 1:28 AM, Kane Kane <kane.ist...@gmail.com>
>> > wrote:
>> > > >
>> > > > > I've got the following exception running produce/consume loop for
>> > > several
>> > > > > hours,
>> > > > > that was just single exception, but during that time both producers
>> > and
>> > > > > consumers slowed down a lot. After that looks like everything works
>> > > fine,
>> > > > > though i have
>> > > > > suspicion some messages were lost.
>> > > > > Can anyone explain what it might be?
>> > > > >
>> > > > > WARN  consumer.ZookeeperConsumerConnector -
>> > > > > [group2_kafka-001.sendgrid.net-1383289
>> > > > > 653031-b02bae92], exception during commitOffsets
>> > > > > java.lang.NullPointerException
>> > > > >         at
>> > > > >
>> > > >
>> > >
>> >
>> org.I0Itec.zkclient.ZkConnection.writeDataReturnStat(ZkConnection.java:115)
>> > > > >         at org.I0Itec.zkclient.ZkClient$10.call(ZkClient.java:817)
>> > > > >         at
>> > > > > org.I0Itec.zkclient.ZkClient.retryUntilConnected(ZkClient.java:675)
>> > > > >         at
>> > > > > org.I0Itec.zkclient.ZkClient.writeDataReturnStat(ZkClient.java:813)
>> > > > >         at
>> org.I0Itec.zkclient.ZkClient.writeData(ZkClient.java:808)
>> > > > >         at
>> org.I0Itec.zkclient.ZkClient.writeData(ZkClient.java:777)
>> > > > >         at kafka.utils.ZkUtils$.updatePersistentPath(Unknown
>> Source)
>> > > > >         at
>> > > > >
>> > > > >
>> > > >
>> > >
>> >
>> kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$3$$anonfun$apply$5.apply(Unknown
>> > > > > Source)
>> > > > >         at
>> > > > >
>> > > > >
>> > > >
>> > >
>> >
>> kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$3$$anonfun$apply$5.apply(Unknown
>> > > > > Source)
>> > > > >         at
>> > scala.collection.Iterator$class.foreach(Iterator.scala:727)
>> > > > >         at
>> > > scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
>> > > > >         at
>> > > > > scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
>> > > > >         at
>> > scala.collection.AbstractIterable.foreach(Iterable.scala:54)
>> > > > >         at
>> > > > >
>> > > > >
>> > > >
>> > >
>> >
>> kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$3.apply(Unknown
>> > > > > Source)
>> > > > >         at
>> > > > >
>> > > > >
>> > > >
>> > >
>> >
>> kafka.consumer.ZookeeperConsumerConnector$$anonfun$commitOffsets$3.apply(Unknown
>> > > > > Source)
>> > > > >         at
>> > > > >
>> > > > >
>> > > >
>> > >
>> >
>> scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:772)
>> > > > >         at
>> > scala.collection.Iterator$class.foreach(Iterator.scala:727)
>> > > > >         at kafka.utils.Pool$$anon$1.foreach(Unknown Source)
>> > > > >         at
>> > > > > scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
>> > > > >         at kafka.utils.Pool.foreach(Unknown Source)
>> > > > >         at
>> > > > >
>> > > > >
>> > > >
>> > >
>> >
>> scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:771)
>> > > > >         at
>> > > > kafka.consumer.ZookeeperConsumerConnector.commitOffsets(Unknown
>> > > > > Source)
>> > > > >
>> > > >
>> > >
>> >
>>

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