Yes I know so ... what's the value of the Offset field in the MessageSet when producer sends messages ?
________________________________ From: Hans Jespersen <h...@confluent.io> Sent: Wednesday, January 18, 2017 11:38:16 PM To: users@kafka.apache.org Subject: Re: Kafka Protocol : about "Offset" in the MessageSet 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/>
