KIP-98 says
> transaction.app.id: A unique and persistent way to identify a
producer. This is used to ensure idempotency and to enable transaction
recovery or rollback across producer sessions. This is optional: you
will lose cross-session guarantees if this is blank.
which might suggest th
Thanks Apurva - replies inline.
On 2017年01月27日 15:19, Apurva Mehta wrote:
Eugen, moving your email to the main thread so that it doesn't get split.
The `transaction.app.id` is a prerequisite for using transactional APIs.
And only messages wrapped inside transactions will enjoy idempotent
guaran
> The PID and sequence numbers are totally transparent to applications.
Now that you say it, the cwiki makes that point already pretty clear by
the way the Producer API is (not) being changed. Sorry for taking your
time on this.
In other words, at the point where messages enter the Kafka syst
