MrBrown blob » munin http://charles.lescampeurs.org random bits. Sat, 10 Apr 2010 09:02:57 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Enhance your munin load graph http://charles.lescampeurs.org/2009/12/03/enhance-your-munin-load-graph http://charles.lescampeurs.org/2009/12/03/enhance-your-munin-load-graph#comments Thu, 03 Dec 2009 10:21:48 +0000 CharlyBr http://charles.lescampeurs.org/?p=204

load-day-old

This is the default output of the munin load plugin.

I’ve patched it to add a permanent blue line indicating the number of cpu of the server. The resulted graph looks like this :

load-day

You can download the patched plugin here. It is tested with Linux and FreeBSD.

]]> http://charles.lescampeurs.org/2009/12/03/enhance-your-munin-load-graph/feed 0 Munin and Use of uninitializer value in eval http://charles.lescampeurs.org/2009/03/11/munin-and-use-of-uninitializer-value-in-eval http://charles.lescampeurs.org/2009/03/11/munin-and-use-of-uninitializer-value-in-eval#comments Wed, 11 Mar 2009 06:51:26 +0000 CharlyBr http://charles.lescampeurs.org/?p=166

On some of freshly installed servers (Debian Etch), I encountered these error messages in /var/log/munin/munin-node.log:

Use of uninitialized value in eval {block} exit at /usr/sbin/munin-node line 456, <CHILD> line 8.

What a great error message :)

After digging into Google results, I found it was just a problem with host_name variable in the configuration. Default value is hostname.localdomain. I’ve replaced it with a valid hostname and it works!

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