Sat, 23 Aug 2008
Nagios Service and Hosts stats - Graphed in Munin
We've been hitting some load issues on one of our monitoring
machines recently and while it looks like the munin graph generation
is the culprit we also decided to keep an eye on how many services and
hosts Nagios was checking.
One of the downsides of having a very automated server deployment system is how easy it is to suddenly find yourself with an extra dozen hosts you no longer really need. While each check is quite small and quick, add up the frequent runs and multiply it by a reasonable number of servers and you can soon hit problems.
So as a first step towards keeping an eye on those numbers we now have a munin Nagios hosts plugin and a munin Nagios services plugin that show the total number of hosts and services monitored and the states those resources are in.
Like this post? - Digg Me! | Add to del.icio.us! | reddit this!
Posted: 2008/08/23 14:20 | /tools/commandline | Permanent link to this entry | This entry and same date
Nagios Checks - Validate HTML and Validate Feed
As part of my ongoing attempt to stop myself from silently making
mistakes (I don't so much mind the ones I notice) I've added another
couple of Nagios
Plugins. This time validate_feed
and validate_html.
As both of these checks call out to an external, third party resource, if you use them be sure to tweak your Nagios polling interval down to a respectful level.
Like this post? - Digg Me! | Add to del.icio.us! | reddit this!
Posted: 2008/08/23 14:11 | /tools/commandline | Permanent link to this entry | This entry and same date
Copyright © 2000-2010 Dean Wilson
