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

[root@XXX ~]# mysql -h localhost -uroot -p
Enter password:
ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/tmp/mysql/mysql.sock‘ (2)


[root@XXX ~]# mysql -uroot -p
Enter password:
ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/tmp/mysql/mysql.sock‘ (2)

[root@XXX ~]# mysql -h 127.0.0.1 -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 7812
Server version: 5.7.18-log Source distribution

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