eigen2017 opened a new issue, #9145: URL: https://github.com/apache/rocketmq/issues/9145
### Before Creating the Bug Report - [x] I found a bug, not just asking a question, which should be created in [GitHub Discussions](https://github.com/apache/rocketmq/discussions). - [x] I have searched the [GitHub Issues](https://github.com/apache/rocketmq/issues) and [GitHub Discussions](https://github.com/apache/rocketmq/discussions) of this repository and believe that this is not a duplicate. - [x] I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ. ### Runtime platform environment ubuntu ### RocketMQ version 5.3.1 ### JDK Version Java8 ### Describe the Bug 2个master分摊消息，无slave 采用python客户端：https://github.com/apache/rocketmq-clients topic：normal类型 1个消费者：循环调用simpleConsumer.receive来接收消息 1个生产者：调用producer.send来发送消息。 流量压力：无任何流量，仅手动测试。 问题：概率的生产之后，延迟半分钟到2分钟，消费者才消费到消息，且期间消费者调用了receive函数多次无果。 规避：采用1个master，无此问题。 或者采用1个master，1个slave，无此问题。 即仅在多个master分摊流量时，有此问题。 ### Steps to Reproduce 见bug描述 ### What Did You Expect to See? mq的含义是实时消费，不管在任何组网下，单发测试都不能有分钟级的延迟。 期待多个master分摊消息，消费者组中消费者的数量任意，在此情况下，依然保持消息能实时消费。 ### What Did You See Instead? 另希望介绍一下normal类型topic的普通消费机制 猜测本问题，是否是因为：消费者某一时刻仅能监听1个master？如果有多个master，该消费者会在master之间切换队列，导致延迟？ 如果是这样，请给出解决方案。 ### 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: commits-unsubscr...@rocketmq.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
