It doesn't look like there is a way to get all consumer groups via the wire protocol/api. I can go to zookeeper and list all the children at '/consumers' but would like to use zookeeper as minimally as possible. Would this be a good feature to add the the ConsumerMetadataRequest? Am I missing/misusing something here?
My initial thought was modeling it to parody the TopicMetadataRequest. Where it takes a list of consumer groups, and if you leave it empty it will return metadata for all. I would find this functionality useful for monitoring/reporting tools and to be sure I am creating a new consumer group instead of joining an existing one. Note: I just made Jira KAFKA-2216 <https://issues.apache.org/jira/browse/KAFKA-2216>, which is somewhat related to this discussion. Thank you, Grant -- Grant Henke Solutions Consultant | Cloudera ghe...@cloudera.com | twitter.com/ghenke <http://twitter.com/gchenke> | linkedin.com/in/granthenke
