redlsz opened a new issue, #7963: URL: https://github.com/apache/rocketmq/issues/7963
### Before Creating the Enhancement Request - [X] I have confirmed that this should be classified as an enhancement rather than a bug/feature. ### Summary Check the existence of consumer group in command updateConsumerOffset. Return SUBSCRIPTION_GROUP_NOT_EXIST if the group has been deleted. ### Motivation In scenarios where consumer group need to be deleted, if deleteSubscriptionGroup admin is called before shutting down the online consumer clients, the consumer offset records, which is dirty, might be kept in broker. This could raise some problems, such as getting incorrect data when calling queryTopicConsumeByWho. <img width="1725" alt="image" src="https://github.com/apache/rocketmq/assets/103550934/d8f6a4ca-56c1-47af-b1c5-e9642d5cb2fb";> This is not the good way to use rmq, but it would occur, and be uncontrollable to broker. ### Describe the Solution You'd Like Check the existence of consumer group in command updateConsumerOffset. Return SUBSCRIPTION_GROUP_NOT_EXIST if the group has been deleted. ### Describe Alternatives You've Considered / ### Additional Context _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
