reinstall mariadb/mysql on mac

reinstall-mariadb-mysql.txt

Remove contents of /usr/local/var/mysql
brew uninstall mysql
brew uninstall mariadb
brew install mariadb
mysql_install_db
mysql.server start
sudo mysql
  - this opens a session. Just exit mysql for now
mysql_secure_installation
  -  Answer yes to everything
sudo mysql
create a new user:
CREATE USER 'jdoe'@'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'jdoe'@'localhost';
FLUSH PRIVILEGES;
exit;