Producer will not know the offset of the message(s) at the time they send to the broker but they can receive that information back as confirmation of successful publish.
-hans > On Jan 18, 2017, at 1:25 AM, Paolo Patierno <ppatie...@live.com> wrote: > > Hi, > > > reading about the Kafka protocol specification here > (https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol) > I see that the producer and fetch requests share a MessageSet (for messages > sent and received). > > As it is defined, the MessageSet is [Offset MessageSize Message]. > > > I'm ok on having the offset when client receives a message (knowing its > offset) but what about producer ? Does the producer send the "offset" as > destination of the message ? Or the "Offset" is empty in case of producer ? > > > Thanks, > > Paolo > > > > Paolo Patierno > Senior Software Engineer (IoT) @ Red Hat > Microsoft MVP on Windows Embedded & IoT > Microsoft Azure Advisor > > Twitter : @ppatierno<http://twitter.com/ppatierno> > Linkedin : paolopatierno<http://it.linkedin.com/in/paolopatierno> > Blog : DevExperience<http://paolopatierno.wordpress.com/>
