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External Monitoring Tools

Another way to watch a Tomcat application is to use an external monitoring tool.

MoSKito, an open-source solution by Anotheria, uses the JMXProxyServlet interaction for getting JMX beans. It is a multi-purpose, non-invasive, interval-based monitoring system kit that collects, stores and provides instant analysis of a Tomcat application’s performance and behavior data.

Other Plug-in-based monitoring software like MoSKito, Nagios or Icinga may need some help interacting with Tomcat's JMXProxyServlet. tools/check_jmxproxy.pl is a Perl script that can be used with these tools to monitor Tomcat via the JMXProxyServlet.

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