> Ewen's reply sums up my thoughts on the error handling points. It doesn't > seem ideal to justify the wire protocol behaviour based on the Java > implementation. If we need map-like semantics in the protocol, then maybe > we need a `Map` type to complement `Array`? Otherwise, I still think we > should consider throwing the appropriate errors instead of silently picking > a behaviour. It would be good to know what others think.
Agree. I would prefer to get an error code back from the broker if I accidentally submitted duplicate topics, or if I set both partitions + replicas. I think putting the burden on the client/driver developer to get this right at the wire protocol level is much easier if there's immediate error feedback. -Dana
