jsancio commented on code in PR #20356: URL: https://github.com/apache/kafka/pull/20356#discussion_r2279395975
########## core/src/main/scala/kafka/server/KafkaRequestHandler.scala: ########## @@ -93,7 +93,8 @@ class KafkaRequestHandler( val requestChannel: RequestChannel, apis: ApiRequestHandler, time: Time, - nodeName: String = "broker" + nodeName: String = "broker", + val isCombinedMode: Boolean = false, Review Comment: This is a very ad-hoc solution which assumes one or two request handler pool(s). To solve this problem, I see two options: 1. Keep track of the number of threads in a pool and the number of threads across all of the request handler pools. The metrics would use the global count when computing the average thread idle ratio. 2. Have two different metrics for the broker's request handler versus the controller's request handler. This would of course require a KIP. I am leaning toward options 1 for now. In the future we can always do option 2. which would at a high-level define 3 metrics: 1. RequestHandlerAvgIdlePercent which reports the thread idle ratio for all of the request pools 2. BrokerRequestHandlerAvgIdlePercent which reports the thread idle ratio for the broker request pool 3. ControllerRequestHandlerAvgIdlePercent which reports the thread idle ration for the controller request pool. -- 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: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org