yuz10 opened a new issue, #7261: URL: https://github.com/apache/rocketmq/issues/7261
### 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 5.1.0 ### JDK Version 1.8.0 ### Describe the Bug 1、set enableScheduleAsyncDeliver=true 2、send some scheduled messages of each delay level. 3、pause master node for a while, the master will switch to slave. One way to pause is using remote debug. 4、after the master switch to slave, resume the slave, then CPU is high. the stack is in: [ScheduleMessageService.java: 561](https://github.com/apache/rocketmq/blob/develop/broker/src/main/java/org/apache/rocketmq/broker/schedule/ScheduleMessageService.java#L561C1-L562C1) when master swith to slave, deliverExecutorService shuts down, this.future.thenAccept is not excuted, so the task is always RUNNING, causing endless loop in line 561 and line 569 ### Steps to Reproduce 1、set enableScheduleAsyncDeliver=true 2、send some scheduled messages of each delay level. 3、pause master node for a while, the master will switch to slave. One way to pause is using remote debug. 4、after the master switch to slave, resume the slave, then CPU is high. ### What Did You Expect to See? CPU is normal ### What Did You See Instead? CPU usage is high ### 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]
