Gentoo: How to use Munin to monitor Mailman

Update 31/12/2012: Now this is a bit simpler, since bug 448414 has been fixed.

Before we start with the step-by-step procedure to get the mailman plug-in working, lets recall how to test a munin plug-in:

$ sudo munin-run mailman
posts.value 24
members.value 21892

The output above is what you should get once the mailman plug-in is correctly set-up.

Now, lets start with the step-by-step guide. First, unmask munin, since we need version 2.0.9-r1 at least:

/etc/portage/package.keywords
net-analyzer/munin

Install the plug-in:

$ cd /etc/munin/plugins
$ ln -s /usr/libexec/munin/plugins/mailman

Configure the plugin:

/etc/munin/plugin-conf.d/mailman
[mailman]
user mailman
group mailman

Restart the daemon:

# /etc/init.d/munin-node restart

Enjoy.

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