This is the blog of Ronald Bartels that wanders on and off the subject of problem management (that is how it started), but it is best described by Ray who says this is Daddy's thoughts! Like the best music is from the Eighties and a wee dram helps in solving most inconveniences.
Munin - Networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems.
Munin the monitoring tool surveys all your computers and remembers what
it saw. It presents all the information in graphs through a web
interface. Its emphasis is on plug and play capabilities. After
completing a installation a high number of monitoring plugins will be
playing with no more effort. Using Munin you can easily monitor the performance of your computers,
networks, SANs, applications, weather measurements and whatever comes to
mind. It makes it easy to determine "what's different today" when a
performance problem crops up. It makes it easy to see how you're doing
capacity-wise on any resources. Munin uses the excellent RRDTool
(written by Tobi Oetiker) and the framework is written in Perl, while
plugins may be written in any language. Munin has a master/node
architecture in which the master connects to all the nodes at regular
intervals and asks them for data. It then stores the data in RRD files,
and (if needed) updates the graphs. One of the main goals has been ease
of creating new plugins (graphs).
Find out more about Munin here or checkout a more comprehensive list of tools over at LinkedIn here.