Tag Archives: munin

munin: File is not a perl storable

The problem

I recently got me a bunch of mails from cron, informing me about a failure

File is not a perl storable at /usr/lib/perl/5.18/Storable.pm line 398, at /usr/share/perl5/Munin/Master/Utils.pm line 279.

Most of the graphs (but not all graphs) for a host was not displaying correctly. Instead of the graph I saw the actual data.

Not really finding any relevant answers to my querys on Google, I found this page. Not exactly the same error, but I did find some valuable information about how to further investigate the problem.

The solution

Run munin-cron as user munin to see if displays anymore information about the problem:

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Reinstalling my workstation

Disclaimer

THIS IS NOT A BEST PRACTICE ON HOW TO INSTALL A LINUX BOX!
This document serves as a reminder to myself, on what needs to be done when reinstalling my workstation, and I have put it here to have it conveniently at hand. Because of this, the document may not be of any help to anybody but me. The last month I’ve had 3 failing harddrives, one new and 2 used ones, so this makes me want to document the process, at least in an overall fashion…

Installing dependencies

  • I have a script listing all my script dependencies and all software I always want installed, so this part is easy:
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System monitoring with Munin

This is a brief guide to installing and configuring Munin.

This is how the Munin project describes their software on their site:

Munin is a networked resource monitoring tool that can help analyze resource trends and “what just happened to kill our performance?” problems. It is designed to be very plug and play. A default installation provides a lot of graphs with almost no work.

Installing the server

Installing a Munin server in Kubuntu is easy. This will install the server as well as the client on the server itself:

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