Fix for Munin installed by cPanel/WHM
- Determine where is mysqladmin program located with the one of the following command:which mysqladmin
locate mysqladminIf should return a path to mysqladmin which looks similar or the same to /usr/bin/mysqladmin.
- Edit the /etc/munin/plugin-conf.d/cpanel.conf Munin configuration file, and modify the [mysql*] to look like below:
Ensure the env.mysqladmin value is path returned by step above. Also ensure that /root/.my.cnf contains correct root password to the MySQL databases.
- Then restart Munin service:/etc/init.d/munin-node restart
- Wait a while for MySQL statistics to be gathered, and check the graphs again.
Fix for Host or Server without cPanel Control Panel
Simply add the “env.mysqladmin /usr/bin/mysqladmin” (ensure that the path is correct according to your system) to the /etc/munin/plugin-conf.d/munin-node file will do the trick, according to Munin FAQ.