GitHub user bugCats added a comment to the discussion: 订阅关系一致与蓝绿部署

具体要怎么操作?

我想想,新实例使用新的consumerGroup,和旧实例不属于同一个消费者组。
那么同一个消息会被旧实例、和新实例都可以消费。如果保证幂等,好像也行?

但是新增消费者组,需要手动新增 `%RETRY%xxx`topic,多建几个,然后滚动使用,问题也不大?

好像可行?

GitHub link: 
https://github.com/apache/rocketmq/discussions/6837#discussioncomment-6055162

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