Ok first, thank you bro, i appriciate it a lot.
second i think i find solution how to turn this plugin off:
cPanel has updated and now created some:
cpanel.conf file inside the plugin-conf folder.
Its look like you have kind of 2 munin's or 2 set of configuration files.
Thos how i succeed to turn off the warning:
nano /etc/plugin-conf.d/cpanel.conf
then add this:
[mysql_innodb]
env.warning 0
env.critical 0
under the regular [mysql*]
but its not help by himself, i must do this as well:
i create file with nano:
nano /etc/munin/plugin-conf.d/mysql_innodb
with the contents:
[mysql_innodb]
env.warning 0
env.critical 0
Only then, warning disappear from Munin.
EVEN!
After Munin got fix, you can remove the line, but upgrade munin or reinstall it throw the interface, bring the error
back.
I suspect on DUPLICATED symlinks OR couple of configs cPanel created.
One belong to munin and one belong to cPanel and Munin TOGHTER. (costume config via cPanel)
i think have 2 systems, this why i must work with 2 config files
one is cpanel, conf
and the other is
mysql_innodb regular file in nano.
Now its work fine.
i sucssed to turn it off and the error not appear now.