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

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配置文件设置不正确，也可能导致mysql.sock文件无法创建，消除错误日志中的错误！！！

今天在linux里安装mysql，运行时遇到这样的错误

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

上网查了下：