I would like to know if it is possible to know web dyno usage in heroku?
For example, I would like to know if my dyno is using 100% of its resources, or it is just idling, so I could add or remove more dynos in order to have optimal resource utilization.
Heroku command line client gives only information about number of dynos and uptime, without further details. Something like dyno equivalent of cpu usage, requests per sec per dyno or average response time of actual requests would be helpful.
I know there are some addons that work with Ruby, but I'm interested in ways to monitor Java / Clojure application.
Probably the best way to get this kind of information on Heroku is with the New Relic add-on. It does work with Java but I'm not sure there is any specific Java on Heroku + New Relic documentation yet.