Re: Reading all messages from a Kafka topic for a state

[Tomer Cohen <il...@gmail.com>]

Hi Matthias,

Thanks for the info.

I tried what you suggested. However I couldn't restore the state by reading
the entire topic from beginning to end (assuming it's not stored on a local
disk) without changing the application.id property to another value which
will force it to re-read the topic.

Is there a way to do it without having to change the application.id to
another value?

Thanks,

Tomer

On Mon, Nov 30, 2020 at 4:36 PM Matthias J. Sax <mj...@apache.org> wrote:

> Well, your KTable (by default) will be stored on local disk and thus a
> reply is not necessary.
>
> In case you loose your local state, Kafka Streams will first restore the
> state before resuming processing.
>
>
> -Matthias
>
> On 11/30/20 6:20 AM, Tomer Cohen wrote:
> > Thanks Matthias for the detailed and helpful explanation
> >
> > Is there a way that I can ensure that the KTable will be read from the
> > beginning of the topic on every restart of the application without having
> > to generate a new "application.id"?
> >
> > Thanks,
> >
> > Tomer
> >
>