Hi Kafka Devs, Currently, the new consumer provides no way to view a group's status except by inspecting coordinator and consumer logs. This includes listing the members of the group and their partition assignments. For the old consumer, tools could read this information directly from Zookeeper, but with persistence up in the air for the new consumer, that may not be possible. Even if it were, we might prefer to use a request API (in line with KIP-4) since that keeps tooling decoupled from the storage system and makes access control easier. Along those lines, I've created KIP-40 to solve this problem by extending the GroupMetadata request (formerly known as the ConsumerMetadata request). Have a look and let me know what you think!
KIP-40: https://cwiki.apache.org/confluence/display/KAFKA/KIP-40%3A+GroupMetadata+request+enhancement Thanks, Jason
