NOTE: MariaDB is installed without root password, it is recommended to set the
root password with the following command as soon as possible:

 #  mysql_secure_installation
 press enter at each question except the new root password.

The initscript used to start mysql has been reverted to use the one shipped
by MariaDB. This means the following changes:

 * The generation of the initial system mysql database is now done when mysql
   is started from the initscript and only if the /var/lib/mysql/mysql
   directory is empty (mysql_install_db). Previousely this was quite hidden and
   silently done at (rpm) install time. As a consequence to this change you may
   have to perform some manual tasks to upgrade the mysql system database and
   such. So, doing something like this might help you:

   systemctl stop mysqld.service
   TMPDIR=/var/tmp mysql_install_db
   mysql_upgrade --skip-write-binlog

The cluster functionalities (ndb) has been deactivated and will be removed in
future mysql versions. Oracle has a new product named mysql-cluster that
replaces the cluster functionalities.

The mysql-common-core package ships with a default /etc/my.cnf file that is
based on the my-medium.cnf file that comes with the source code.