Public bug reported: I just installed a fresh Ubuntu 20.04 with mysql and munin.
It previously worked quite well with Ubuntu 18.04, but now the default plugin-conf.d/munin-node file seems to not work anymore for mysql. Here is the output of it: # munin-run mysql_commands DBI connect('mysql;mysql_read_default_file=/etc/mysql/debian.cnf;mysql_connect_timeout=5','root',...) failed: Access denied for user 'root'@'localhost' (using password: YES) at /etc/munin/plugins/mysql_commands line 1071. Warning: the execution of 'munin-run' via 'systemd-run' returned an error. This may either be caused by a problem with the plugin to be executed or a failure of the 'systemd-run' wrapper. Details of the latter can be found via 'journalctl'. The mysql section in /etc/munin/plugin-conf.d/munin-node looks like: [mysql*] user root env.mysqlopts --defaults-file=/etc/mysql/debian.cnf env.mysqluser root env.mysqlconnection DBI:mysql:mysql;mysql_read_default_file=/etc/mysql/debian.cnf which will result in an error using e.g. mysql_commands or so. Changing this section to... [mysql*] user root env.mysqluser debian-sys-maint env.mysqlconnection DBI:mysql:mysql;mysql_read_default_file=/etc/mysql/debian.cnf ...did the trick for my installation. The main problem seems to be the mysqluser set to root even though the default file contains only a "debian-sys-maint" user. ** Affects: munin (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1880662 Title: munin node config for mysql not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/munin/+bug/1880662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs