Monitoring Server applications
This pages lists some links to products that may be useful for monitoring servers.
Tomcat
Lambdaprobe -
http://www.lambdaprobe.org/d/index.htm
JMeter add-on sampler for rstatd -
http://swirstatdsample.sourceforge.net/
visualization for results of swiRstatdSampler -
http://swirstatdgraph.sourceforge.net/