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Jason Gustafson updated KAFKA-1088: ----------------------------------- Fix Version/s: (was: 0.10.1.0) 0.10.2.0 > Ability to create a shadow consumer group > ----------------------------------------- > > Key: KAFKA-1088 > URL: https://issues.apache.org/jira/browse/KAFKA-1088 > Project: Kafka > Issue Type: New Feature > Components: consumer > Reporter: Andrew Olson > Assignee: Neha Narkhede > Fix For: 0.10.2.0 > > > I have a consumer group API request that hopefully can be included in the > client rewrite [1] project: the ability to create a new consumer group that > is initialized to the latest topic/partition offsets of another existing > group. Our use case is being able to inspect an active group's unprocessed > messages in a non-invasive manner from an admin or troubleshooting > perspective. This shadow group would be short-lived and given a randomly > generated name. It's nice to see that we'll be able to designate it as > ephemeral as well so that it is automatically cleaned up. > To obtain this message browsing functionality today with 0.8, we > programmatically copy the group ZK paths prior to activating the "spy" group > so that it only sees the unprocessed messages of the target. Obviously not > ideal, but it worked well as a quick hack since we understand how Kafka > writes and reads the offset data in ZK. > [1] https://cwiki.apache.org/confluence/display/KAFKA/Client+Rewrite -- This message was sent by Atlassian JIRA (v6.3.4#6332)