在mac 下重启mysql的命令如下：
启动MySQL服务
sudo /usr/local/MySQL/support-files/mysql.server start
停止MySQL服务
sudo /usr/local/mysql/support-files/mysql.server stop
重启MySQL服务
sudo /usr/local/mysql/support-files/mysql.server restart
mac 下重启 MYSQL 命令
原文：http://www.cnblogs.com/bolddream/p/restart_mysql.html
