imzs opened a new issue, #10450: URL: https://github.com/apache/rocketmq/issues/10450
### Before Creating the Enhancement Request - [x] I have confirmed that this should be classified as an enhancement rather than a bug/feature. ### Summary CombineConsumeQueueStore was originally designed as a transitional state in which every topic is double-written to both the file-based ConsumeQueue and the RocksDB ConsumeQueue. As it has gradually become a long-running state in practice, we observed that not all topics actually need double-write. In particular, LITE topics need it more than ordinary topics, because LMQ is required to run on top of the RocksDB ConsumeQueue. This is the original motivation for introducing selective double-write. To avoid an incompatible breaking change, we introduce a new opt-in switch `rocksdbCQSelectiveDoubleWriteEnable` as an additional control rather than altering the existing default behavior. Existing deployments are therefore unaffected unless they explicitly opt in. ### Motivation . ### Describe the Solution You'd Like . ### Describe Alternatives You've Considered . ### Additional Context . -- 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]
