caigy opened a new issue, #4815:
URL: https://github.com/apache/rocketmq/issues/4815

   **BUG REPORT**
   
   1. Please describe the issue you observed:
   
   - What did you do (The steps to reproduce)?
   In POP mode, return `ConsumeConcurrentlyStatus.RECONSUME_LATER` for 
consuming the message again, then wait for the message consuming again.
   
   - What is expected to see?
   The message should be consumed again for seconds, if no new messages are 
produced.
   
   - What did you see instead?
   It took at least 2 minutes to consume the message for the next time.
   
   2. Other information (e.g. detailed explanation, logs, related issues, 
suggestions on how to fix, etc):
   
   The delay (or invisible) time for retry messages is calculated as follows: 
   
https://github.com/apache/rocketmq/blob/e5a71bb95f6b8c1dcb4e44d5948469629da3833b/client/src/main/java/org/apache/rocketmq/client/impl/consumer/ConsumeMessagePopConcurrentlyService.java#L287-L293
   
   When `delayLevel` is 0, the delay (or invisible) time is 120s, which is too 
long.
   
   
https://github.com/apache/rocketmq/blob/e5a71bb95f6b8c1dcb4e44d5948469629da3833b/client/src/main/java/org/apache/rocketmq/client/impl/consumer/DefaultMQPushConsumerImpl.java#L132-L133
   


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