Hi Peyton,

What version of Kafka are you using?
Starting from version 1.1.0 there is a DELETE_GROUP API: 
https://cwiki.apache.org/confluence/display/KAFKA/KIP-229%3A+DeleteGroups+API
You can also use the consumer group command with `--delete` to delete a 
group.

For prior versions, the safest option would be to wait for 
`offset.retention.minutes` until all group offsets are expired.

--Vahid




From:   "ÅíÅô(Peyton)" <p...@webull.com>
To:     users@kafka.apache.org
Cc:     "彭鹏" <p...@webull.com>
Date:   08/13/2018 08:12 AM
Subject:        Question how to drop a unused group id?



Hi kafka team,

I have an issue about drop the unused group id which is created with the 
new consumer api, but I found no way to process it, can you please give mi 
a hint how to do it?

Thank you very much.

Regards,
Peyton

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