Hi Rainer,

Thanks for reporting this issue.  Do you have any log data you can share?

In the meantime, I'll look into the issue.

Thanks,
Bill

On Thu, Nov 9, 2017 at 1:23 PM, Rainer Guessner <raguess...@gmx.com> wrote:

> I have a custom processor that implements AbstractProcessor and a custom
> store that implements StateStore.
>
> Before Kafka 1.0.0 the processors "init" method gets called after the
> state store is restored from changelog and that is good.
> With Kafka 1.0.0 the processors "init" method is called BEFORE the state
> store is restored from changelog and that is bad.
>
> My processor can only initialize when it has access to the state. However
> at the time KStreams calls "init" on the processor the state store may not
> have any data. It is not an option for me to initialize the processor
> lazily when a record arrives, or to re-initialize it when "onRestoreEnd" is
> called (its only called on restore; The state store "init" gets called
> before processor "init" regardless of restore or not.)
>
> I think I need to have either of these:
> a) know whether or not a state restore will take place and when not
> b) or get a call to the state store regardless of whether state restore
> took place or not
> c) or I need a "ready" method on the processor that gets called when the
> state store has completed restoring and is actually usable
>
> Please help, thank you in advance.
> Rainer
>

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