Hello Nick,

You would need to upgrade your Kafka Server first if you have not done so.
After that you can first follow this as you mentioned:


to move the committing offsets from ZK to Kafka (note there is a phase
where you will do double committing to read offsets from ZK while writing
to Kafka). Then you can upgrade to the new consumer.


On Tue, Sep 20, 2016 at 5:08 PM, Nick <nick.kleinschm...@gmail.com> wrote:

> I’m running the old 0.8 consumer storing offsets in Zookeeper, want to
> migrate to the new consumer introduced in 0.9 . I don’t see anything in the
> docs about how to do that while preserving offsets. Do I need to follow the
> steps from the FAQ to migrate to committing offsets to Kafka, then I can
> swap in the new consumer?

-- Guozhang

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