Tomcat thread pool metric should show busy threads #22
Description
Catalina_ThreadPool_currentThreadCount shows both busy and idle threads, would be better to display Catalina_ThreadPool_currentThreadsBusy.
This applies to Bamboo, Crowd, and Jira.
Some admins may set min = max in the Tomcat thread pool so monitoring the min thread count doesn't bring value. We should look at the busy thread instead.