I think "CLIENT" is just an example. The default for listener.security.protocol.map doesn't have it. If you look at the KIP link in my email there's a more complete example:
listener.security.protocol.map=CLIENT:SASL_PLAINTEXT,REPLICATION:PLAINTEXT,INTERNAL_PLAINTEXT:PLAINTEXT,INTERNAL_SASL:SASL_PLAINTEXT advertised.listeners=CLIENT://cluster1.foo.com:9092 ,REPLICATION://broker1.replication.local:9093,INTERNAL_PLAINTEXT://broker1.local:9094,INTERNAL_SASL://broker1.local:9095 listeners=CLIENT://192.1.1.8:9092,REPLICATION://10.1.1.5:9093 ,INTERNAL_PLAINTEXT://10.1.1.5:9094,INTERNAL_SASL://10.1.1.5:9095 On Fri, Nov 10, 2017 at 7:10 PM, Thomas Stringer <trstrin...@gmail.com> wrote: > Yep I'm familiar with that. Just curious where it's documented that, for > instance, the CLIENT listener is for client connections. > > On Fri, Nov 10, 2017, 12:08 PM Kaufman Ng <kauf...@confluent.io> wrote: > > > This is related to another config "listener.security.protocol.map" > (since > > version 0.10.2.0). The CLIENT, PLAINTEXT, etc are defined as a > > name-protocol mapping. So what you have in the listeners property (e.g. > > CLIENT) must have an entry in the protocol map which determines which > > protocol to use (e.g. CLIENT:SASL_PLAINTEXT). > > > > The idea is that the same protocol can be used in multiple listeners. For > > example you might have SASL/SSL in two listeners (different network > > interface or port). > > > > This is part of KIP-103, you can see more details there: > > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP- > 103%3A+Separation+of+Internal+and+External+traffic > > > > On Fri, Nov 10, 2017 at 10:10 AM, Thomas Stringer <trstrin...@gmail.com> > > wrote: > > > > > I've been working with Kafka broker listeners and I'm curious is there > > > any documentation that explains what all of them apply to? Such as > > > CLIENT, PLAINTEXT, SASL/SSL, etc. I see the encryption part of the > > > documentation, but is it just inferred what these listeners apply to? > > > > > > Thank you in advance! > > > > > > > > > > > -- > > Kaufman Ng > > +1 646 961 8063 > > Solutions Architect | Confluent | www.confluent.io > > > -- Kaufman Ng +1 646 961 8063 Solutions Architect | Confluent | www.confluent.io
