MariaDB
https://blog.programs74.ru/how-to-install-mariadb-10-5-on-debian-10/
apt-get install -y mariadb-server libmariadbclient-dev libmariadbclient-dev-compat systemctl status mariadb
sudo mysql_secure_installation
-- It does not ask me for any password sudo mysql
-- Then in MariaDB/MySQL console: UPDATE mysql.user SET plugin = 'mysql_native_password' WHERE USER='root'; FLUSH PRIVILEGES; exit;
https://galeracluster.com/library/documentation/galera-manager-monitoring-clusters.html https://galeracluster.com/library/documentation/galera-manager.html https://bogachev.biz/2017/03/28/neskolko-sposobov-vosstanovleniya-mariadb-galera-cluster/ https://galeracluster.com/library/documentation/arbitrator.html
fix [Warning] [MY-013360] [Server] Plugin sha256_password reported