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From Ziggy <>
Subject Tomcat monitoring using JMX
Date Thu, 06 Jan 2011 12:44:56 GMT

I am using JMX to connect to a Tomcat instance and looking at attributes for
a jdbc datasource as shown below.

MBeanServerConnection conn = jmxc.getMBeanServerConnection();
ObjectName on = new
mbsc.getAttribute(on, "numIdle")

Is there an Mbean provided by Tomcat that can provide me the following

- Whether Tomcat is running
- Whether a specific web app running under a specific context is runnin
- The health of the environment in general (tomcat, OS etc)
- Whether a JNDI datasource is available and if possible how many active
database connections there are and how many free.

I have been google'ing around but the majority of the examples talk about
writing your own Mbean and including it as part of the application. I am
trying to write an external client utility that will monitor the application
away from Tomcat.


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