KIP-40 — ListGroups and DescribeGroup

Accepted ConsumerProtocolAdmin

Adds `ListGroups` and `DescribeGroup` broker APIs (key=16 and key=15) to expose consumer group membership and partition assignment information for new-consumer groups whose metadata is stored in Kafka rather than ZooKeeper. Without these APIs, tooling and operators have no way to inspect the state of new-consumer groups through the broker protocol, blocking monitoring and administration.

Protocol Impact

Metadata · ListGroups

Details