Crazylychee opened a new issue, #9616: URL: https://github.com/apache/rocketmq/issues/9616
### Before Creating the Enhancement Request - [x] I have confirmed that this should be classified as an enhancement rather than a bug/feature. ### Summary Currently, metadata synchronization between the master and slave nodes uses scheduled RPCs. In controller mode, a RocketMQ master and slave node experience a metadata loss window of approximately 12 seconds, while in standard master-slave synchronization, this window increases to approximately 60 seconds. This can lead to many unpredictable issues. Our goal is to use system topics to implement incremental metadata synchronization, thereby reducing the window of data inconsistency. I have written the proposal and you can see it by the link below: Chinese version: https://m0sgzrp00oj.feishu.cn/docx/CvbedEJXto7A2BxfYVXcLXATnbd?from=from_copylink We will implement this proposal in multiple phases: Phase 1 - [x] Complete metadata change notifications Phase 2 - [x] Complete scheduled storage and deletion of master node snapshots - [x] Complete slave node burst snapshot synchronization and incremental synchronization - [ ] Complete adaptation of this functionality to the JSON and RocksDB storage formats Phase 3 - [ ] Complete relevant unit tests, integration tests, and chaos tests - [ ] Complete test reports ### Motivation null ### Describe the Solution You'd Like null ### Describe Alternatives You've Considered null ### 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]
