lizhimins opened a new pull request, #10470: URL: https://github.com/apache/rocketmq/pull/10470
## What is the purpose of the change Part of #10462 Add memory backpressure mechanism to the tiered storage dispatcher. When available heap memory falls below the configured threshold, dispatch is skipped to prevent OOM. ## Brief changelog - Add `tieredStoreDispatchMinFreeMemoryRatio` (default 0.1) and `tieredStoreDispatchMinFreeMemoryMaxBytes` (default 1GB) config - Add `isMemoryEnough()` check before dispatch - Remove Dispatcher semaphore, rely on thread pool natural throttling - Rename `dispatchWithSemaphore` to `dispatch` ## Verifying this change - [x] `mvn compile` succeeds - [x] `mvn test -pl tieredstore` passes (112 tests, 0 failures) 🤖 Generated with [Claude Code](https://claude.com/claude-code) -- 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]
