Thanks Matthias. Is there a way to allow users to read change logs from a
previous application ?

On Mon, May 23, 2016 at 3:57 PM Matthias J. Sax <matth...@confluent.io>
wrote:

> Hi Manu,
>
> Yes. If a StreamTask recovers, it will write to the same change log's
> topic partition. Log compaction is enable per default for those topics.
> You still might see some duplicates in your output. Currently, Kafka
> Streams guarantees at-least-once processing (exactly-once processing is
> on the roadmap though).
>
>
> -Matthias
>
> On 05/23/2016 06:10 AM, Manu Zhang wrote:
> > Hi All,
> >
> > I'm new to Kafka Streams and have a question on change log.
> > If a StreamTask fails and is restarted, will the change log be written to
> > the old change log's  topic partition ? Is it possible for some change
> log
> > topic partition to have duplicate records so that log compaction is
> > required ?
> >
> > Thanks,
> > Manu Zhang
> >
>
>

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