monitoring

Tailoring Your Munin Installation

by Matthias Marschall on December 21, 2009 · 0 comments

picture by London Flash Cars

After following Dan’s tutorial on installing munin on your servers, you already get the benefits of munin’s default plugins. You have graphs showing your CPU, RAM, I/O, as well as MySQL, Exim, and quite some other stats. But most of the time you run some additional software which you also want to montior.

Monitoring OpenSolaris Zones with Nagios

by Matthias Marschall on July 3, 2009 · 2 comments

We’re running separate zones for web, app, and db servers. To be able to know the health of our application and our servers, we rely on pnp4nagios for graphing performance data like CPU utilization, memory usage, etc. Using OpenSolaris zones, there is only one OS kernel running. This is different in e.g. XEN, where every [...]

Testing Dash Metrics with Cucumber (Bradley Taylor) – A short article showing off a Cucumber feature for monitoring with Nagios. Kanban vs. Scrum (Henrik Kniberg) – A great, 26 page long PDF about the similarities and differences between Scrum and Kanban. Absolutely worth reading! Reconnoiter (Theo Schlossnagle) – Theo and his OmniTI Labs are working [...]

Test First in Operations at The Build Doctor

by Matthias Marschall on May 7, 2009 · 0 comments

Read about my ideas for Test First in Operations at The Build Doctor. Julian Simpson (@simpsonjulian) is “The Build Doctor”, or as he states it: Blogger, professional build manager, systems administrator, caffiene addict, dad. We already had the pleasure to publish his great post Partitions and Warfare. Check out Julians posts there. It’s worth it!

Monitoring tools essentials: Munin vs. Nagios

by Matthias Marschall on April 16, 2009 · 6 comments

When you’re running any business critical application, you need to know what’s going on with it. Is it up? Does it cause extended load on your servers? Does it have enough disk space left, how fast is the data on the disk growing, etc. To know all that, you need a tool which a) monitors [...]

Securely tunneling Munin traffic

by Matthias Marschall on March 10, 2009 · 0 comments

This is a guest post by Thomas Eisenbarth. Thomas studied computer science at the University of Augsburg, currently works at BINconsult GmbH, Berlin and co-founded makandra GmbH in Augsburg. He and his teams develop and operate web applications. As Dan discussed already in Getting a Grip on your Operations with Munin and 10 Seconds A [...]

Getting a Grip on your Operations with Munin

by Dan Ackerson on January 18, 2009 · 5 comments

Have you ever taken a midnight drive down a dirt road without any headlights on? While its certainly a thrilling (and stupid) thing to do, I certainly wouldn’t recommend doing the same thing with your data center. Do you have any idea if the load your servers experienced this morning was unusually high? Could you [...]