Munin: Fix MySQL graphs not updating

If you have setup munin-node on a cPanel server it's possible that your MySQL graphs stop updating at sometime, or don't even generate from the beginning.


To fix, edit the following file:

/etc/munin/plugin-conf.d/cpanel.conf

And make sure that the mysql section contains the following:

[mysql*]
user root
group wheel
env.mysqladmin /usr/bin/mysqladmin
env.mysqlopts --defaults-extra-file=/root/.my.cnf

Finally, don't forget to restart munin-node

/etc/init.d/munin-node restart
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