We are using Kafka .9 and are playing around with the consumer group feature.  We have a lot of junk and stale consumer group information in the consumer groups and want to get rid of it.  What’s the best way to do that?


Using Kafka Tool, I see that all the consumer groups are stored in ‘Kafka’ and not ‘Zookeeper’.  When I go to zookeeper the consumers node is empty.


I tried using the ConsumerGroupCommand to delete it but since zookeeper shows no consumers this does nothing.  If the consumer groups show only being stored in Kafka, are they considered in memory and completely restarting all Kafka nodes remove them?  If so – why aren’t they being replicated to zookeeper for persistence?




Nick Cuneo  /  Software Engineer, Cloud  /  Enterprise Software

Tel: +1 949 517 4802  /  Mobile: +1 949 243 4952
3 Ada  /  Irvine, CA 92618  /  USA

ncuneo@tycoint.com  www.tyco.com

This email (including any attachments) may contain information that is private or business confidential. If you received this email in error, please delete it from your system without copying it and notify sender by reply email so that our records can be corrected


This e-mail contains privileged and confidential information intended for the use of the addressees named above. If you are not the intended recipient of this e-mail, you are hereby notified that you must not disseminate, copy or take any action in respect of any information contained in it. If you have received this e-mail in error, please notify the sender immediately by e-mail and immediately destroy this e-mail and its attachments.