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From: Jeyhun Karimov <je.karimov@gmail.com>
Date: Wed, 06 Jul 2016 20:33:09 +0000
Message-ID: <CAPqqMpSQv=JfQgg6pbbLPs7+WMc9Kt4Y1uJB=KQy=Mjunz4dxw@mail.gmail.com>
Subject: Re: Parallelisation factor in kafka streams
To: dev@kafka.apache.org
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archived-at: Wed, 06 Jul 2016 20:33:25 -0000

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Thank you for your answer Matthias.
Is it possible to change the parallelism in runtime? Or do we have to
restart the cluster?


On Wed, 6 Jul 2016 at 19:08, Matthias J. Sax <matthias@confluent.io> wrote:

> Hi Jeyhun,
>
> the number of partitions determine the number of tasks within a Kafka
> Streams application and thus, the maximum number of parallelism for your
> application.
>
> For more details see
> http://docs.confluent.io/3.0.0/streams/architecture.html#parallelism-model
>
> You can set the number of threads for a single application instance, via
> parameter "num.stream.threads" (default value is 1).
>
> See
>
> http://docs.confluent.io/3.0.0/streams/developer-guide.html#optional-configuration-parameters
>
>
> -Matthias
>
> On 07/06/2016 06:11 PM, Jeyhun Karimov wrote:
> > Hi community,
> >
> > How can I set parallelisation factor in kafka streams? Is it related with
> > the number of partitions within topics?
> >
> >
> > Cheers
> > Jeyhun
> >
>
> --
-Cheers

Jeyhun

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