Jaskey Lam created ROCKETMQ-105:

             Summary: Implementation of consumerOffset and maxOffset are 
                 Key: ROCKETMQ-105
                 URL: https://issues.apache.org/jira/browse/ROCKETMQ-105
             Project: Apache RocketMQ
          Issue Type: Wish
          Components: rocketmq-broker, rocketmq-client, rocketmq-store
    Affects Versions: 4.0.0-incubating
            Reporter: Jaskey Lam
            Assignee: yukon
            Priority: Minor

This issue does not affect all functionality, but it indeed is a problem for 
user to understand the principle  of RocketMQ.

- ConsumerOffset:

User might consider consumer offset is the offset where I have consumed. for 
example if CG1 have a consumer offset 100 of topicA-q1, I may propabaly 
consider message with offset 100 has been cosumed. But actully, it is not. The 
message with offset 100 is the next target when I pull from.

- Max Offset

User might consider this is the offset of the latest message in a queue. But it 
is not, it is indicating that next offset when new message arrived.

If possible , any of the below two things should be taken into consideration

1. the implementaion should be changed to be closer to the presentative 
judgment of human

2. rename the concept to clarify how it really implemented.

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