问题1：未设置my.cnf如果没设置my.cnf配置，将会出现账号密码登录失败系统偏好配置中MySql无法启动或者关闭解决配置my.cnf到/etc/my.cnf中问题2：查看端口号为0mysql> show global variables like ‘port’;±--------------±------+| Variable_name | Value |±--------------

问题：Failed to establish connection with the application instance in Chrome.This can happen if the websocket connection used by the web tooling is unable to correctly establish a connection, forexample