Hi Misha,

If it works locally, then I would still suspect that it is due to a
transient timing issue: note that the create-topic script is non-blocking,
i.e. even when it returns it does not necessarily guarantee that the leader
metadata information has been completed propagating to brokers.



Guozhang


On Thu, Jul 28, 2016 at 1:48 AM, mishadoff <mishad...@gmail.com> wrote:

> Thanks Guozhang,
>
> Yes, I rely on auto-create, and it works locally. Maybe I need to tweak
> some timeout conf for that?
> Also I identified, that even I manually create a topic, it lists but I can
> not produce messages to this topic with the same exception.
> Producing to other topics works well, so it seems like server problem?
>
> — Misha
>
> > On Jul 28, 2016, at 01:44, Guozhang Wang <wangg...@gmail.com> wrote:
> >
> > Misha,
> >
> > Did you pre-create the sink topic before starting your application or you
> > are relying on the broker-side auto-create for that topic?
> >
> > If you are relying on auto-create, then there is a transient period where
> > the topic is created but the metadata has not been propagated to the
> > brokers so they do not know they are the leader of the created topic
> > partitions yet. And I'd recommend not relying on it since it is really
> > meant for debugging environment only.
> >
> > Guozhang
> >
> >
> > On Wed, Jul 27, 2016 at 5:45 AM, mishadoff <mishad...@gmail.com> wrote:
> >
> >> Hello,
> >>
> >> I’ve a simplest ever kafka streams application which just reads from one
> >> kafka topic A and write to another topic B.
> >>
> >> When I run it on my local environment (local zk, local kafka broker,
> local
> >> kafka streams app) everything works fine, topic B created and filled
> with
> >> messages from A
> >> If I run it on existing kafka cluster (remote zk, remote kafka, LOCAL
> >> kafka streams) my app is not working anymore.
> >>
> >> It succesfully read the remote topic A, succesfully process the message
> >> and generate a producer record, creates a B topic in remote kafka, bud
> >> during send I get an error
> >>
> >> ```
> >> 15:36:47.242 [kafka-producer-network-thread |
> >> example-message-counter3-1-StreamThread-1-producer] ERROR
> >> o.a.k.s.p.internals.RecordCollector - Error sending record: null
> >> org.apache.kafka.common.errors.NotLeaderForPartitionException: This
> server
> >> is not the leader for that topic-partition
> >> ```
> >>
> >> Could you point me to direction where to start debug or what problems
> >> might cause this behaviour?
> >>
> >> Thanks,
> >> — Misha
> >
> >
> >
> >
> > --
> > -- Guozhang
>
>


-- 
-- Guozhang

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