Thanks Dana, But this error is for a *single* process using the kafka-connect library. It does not seem to make any sense that the kafka-connect library would connect to the broker with two different protocols in the same process. Am I misunderstanding something?
On Fri, Jun 10, 2016 at 6:55 PM, Dana Powers <dana.pow...@gmail.com> wrote: > Barry - i believe the error refers to the consumer group "protocol" that is > used to decide which partitions get assigned to which consumers. The way it > works is that each consumer says it wants to join X group and it can > support protocols (1, 2, 3...). The broker looks at all consumers in group > X and picks a protocol that all can support. If there is no common protocol > you would see this error. Example protocols are 'roundrobin' and 'range' . > > You should check the configuration of the group protocol for each consumer > and also check that you don't have extra consumers in the group, perhaps > because the group id is reused / common. > > Hope this helps, > > -Dana > On Jun 10, 2016 4:24 AM, "Barry Kaplan" <bkap...@memelet.com> wrote: > > I delete the group using kafka-consumer-groups.sh --delete and still I get > the error. >
