[ovirt-devel] Engine's jvm stats via jmx and metrics

Hi, During my work I found myself in situation when I realized that I have no clue what engine or engine's jvm is doing. I wanted to use visualvm [1] to monitor engine's jvm. There are two ways to monitor jvm. One of them is by using jstatd which is limited and the second one is jmx. I found a blog [2] which helped me to understand how to connect to the engine. In order to connect you need to run visualvm using attached script. Please modify JBOSS_HOME. Once visualvm is up and running you can click "Add jmx connection...". In connection text box please enter (assuming that your iptables allows 8706): service:jmx:remoting-jmx://<engine_ip>:8706 and click OK. Now you can understand what is going on with engine's jvm. I am able see jvm level information but I still have no clue how well high level engine commands are running. I have been looking for a while how to integrate Metrics [3] with the engine to understand how engine behaves over time. I wonder if there is anyone except me interested in understanding how well engine is running. Thanks, Piotr [1] http://visualvm.java.net/ [2] http://blog.akquinet.de/2012/11/01/connecting-visualvm-with-a-remote-jbos... [3] https://github.com/dropwizard/metrics