Mycat启动正常但无法连接ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/var/lib/mysql

错误信息：

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

服务正常启动，日志没有报错，3306监听也启动了。但连接Mycat数据库报错

解决方法：
加上-h ip地址即可

mysql -uroot -p -h 192.168.31.8