常见的错误ERROR 2002
 
mysql 
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ERROR 2002 (HY000):Can't connect to local MySQL
关于CentOS输入mysql提示: 
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)
 
原因可能是mysql服务没有启动,输入命令:
# service mysqld start

显示: Starting mysqld:  [  OK  ] 证明启动成功了!