Hi Mickael, I don't think adding CREATED_UNDER_REPLICATED as an error code makes sense. It is not an error condition, as described here.
> Updates to the Decommissioning brokers section in the documentation > will mention that if a broker id is never to be reused then its corresponding > node in zookeeper > /brokers/observed_ids will need to be removed manually I don't think it's acceptable to ask admins to manually modify ZooKeeper here. In general the ZK changes seem kind of like a hack -- perhaps we should drop it from the proposal for now. Perhaps we could even somehow do all of this in a custom CreateTopicPolicy? That would avoid the need for RPC changes, new configuration knobs, etc. best, Colin On Tue, Dec 18, 2018, at 08:43, Mickael Maison wrote: > Hi, > > We have submitted a KIP to handle topics and partitions creation when > a cluster is not fully available: > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-409%3A+Allow+creating+under-replicated+topics+and+partitions > > As always, we welcome feedback and suggestions. > > Thanks > Mickael and Edoardo >