zhangxiping1 opened a new pull request, #8489: URL: https://github.com/apache/hadoop/pull/8489
### Description of PR In our scenario, the labels of a batch of nodes are updated periodically. After the active RM had been running for a long time, an active-standby switchover was triggered, and the switchover took an unusually long time. By analyzing the logs and jstack information related to the standby RM's transition to active, we found that a core thread, "SchedulerEventDispatcher:Event Processor", had been continuously processing updateNodeLabelsAndQueueResource. The service logs also showed a large number of "REPLACE labels on nodes" messages. -- 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]
