Monitoring Tomcat with Munin on Debian GNU/Linux
To monitor Tomcat with Munin 2.0 on Debian GNU/Linux (tested on Debian Squeeze with Tomcat6 and Debian Backports), you need the following steps.
First, you need to install package tomcat6-admin which enables the Tomcat Manager app we will be using.
# apt-get install tomcat6-admin
Next, create a user with a manager role in Tomcat, editing /etc/tomcat6/tomcat-users.xml and adding the following two lines in the appropriate list.