Hi, I'd like to start a discussion for KIP-201. The basic point is that new AdminClient APIs for modifying topics should have a configurable policy to allow the administrator to veto the modifications. Just adding a ModifyTopicPolicy would make for awkwardness by having separate policies for creation and modification, so the KIP proposes unifying both of these under a single new policy.
https://cwiki.apache.org/confluence/display/KAFKA/KIP-201%3A+Rationalising+Policy+interfaces Cheers, Tom
