luoyuan3471 commented on PR #4726: URL: https://github.com/apache/hadoop/pull/4726#issuecomment-1212840341
> @luoyuan3471 1.The key to deadlock is that refresh thread can‘t acquire csqueue read lock. The read lock request is blocked by a write lock (as: https://bugs.openjdk.org/browse/JDK-6893626).so i use tryLock to break the condition.The PremmptionManager lock will be released soon after refresh thread gets csqueue read lock. 2.just preemption, but global scheduler increases the chance For 2, Why does Global Scheduler increase the chance of this dead lock case? -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
