ZanderXu opened a new pull request, #4496: URL: https://github.com/apache/hadoop/pull/4496
### Description of PR In our prod environment, Observer NameNode also have high QueueTime, but ProcessingTime is low. After tracing and found the root cause is Rpc ReQueue. So I thinks we should add a metric to quantify the number of reQueueRpc. And It will be helpfully for us to locate this abnormal 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]
