The only other connections to brokers would be to the bootstrap brokers in order to collect cluster metadata.
-Ewen On Wed, Jan 18, 2017 at 3:48 AM, Paolo Patierno <ppatie...@live.com> wrote: > Hello, > > > I'd like to know the number of connections that Kafka clients establish. I > mean ... > > > The producer establishes a TCP connection for each "leader" broker which > has the partition where the producer itself wants to send messages. > > Is there any other connection to consider ? > > > The consumer establishes a TCP connection for each "leader" broker which > has the assigned partition (or requested by client itself) for reading. > > Other than that I understood that consumer has a TCP connection even with > the coordinator for polling information about group changes and partitions > will be re-balanced. > > Is there any other connection to consider ? > > > 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/> >
