aglinxinyuan opened a new issue, #8686: URL: https://github.com/apache/texera/issues/8686
### Task Summary `BackpressurePause` is a `PauseType` that no production code passes to `PauseManager`. **Introduced by** #1636 (2022-08-20, "Introduce types of pause in Amber"). Backpressure paused the worker through `PauseManager` under its own pause type. **Usage removed by** #2237 (2023-12-02, "Use ActorMessage for flow control"). That PR deleted the `pauseManager.pause(BackpressurePause)` / `resume(BackpressurePause)` calls. Backpressure now arrives as an `ActorCommand` and flips `DPThread.backpressureStatus`, so it never goes through `PauseManager`. It has been dead for nearly three years. Only `PauseTypeSpec` and `WorkerManagersSpec` still reference it. #4533 removed its sibling `SchedulerTimeSlotExpiredPause` for the same reason. This is a pure deletion with no behaviour change: +11/−19 lines. ### Task Type - [x] Refactor / Cleanup -- 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]
