A couple months ago, I told you about how simple it was to get Munin up and running. Today, I want to show you some of the successes I’ve had in getting our operations under control and how Munin was key in doing so.
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 tell me how many MySQL “slow queries” were executed on your database yesterday? Have customers and co-workers praised you for your website’s performance?