問題描述

下面是my.cnf的全部內容：

## The MySQL database server configuration file.## You can copy this to one of:# - '/etc/mysql/my.cnf' to set global options,# - '~/.my.cnf' to set user-specific options.# # One can use all long options that the program supports.# Run program with --help to get a list of available options and with# --print-defaults to see which it would actually understand and use.## For explanations see# http://dev.mysql.com/doc/mysql/en/server-system-variables.html## * IMPORTANT: Additional settings that can override those from this file!# The files must end with ’.cnf’, otherwise they’ll be ignored.#!includedir /etc/mysql/conf.d/!includedir /etc/mysql/mysql.conf.d/

然后加入修改字符的兩句話：

[mysql]default-character-set=utf8[mysqld]character-set-server=utf8

然后就不能運行了

ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ’/var/run/mysqld/mysqld.sock’ (2)

問題解答

把新加入的兩句話用#注釋掉試一下，能不能啟動（排除新引入配置出錯）

運行mysqld status查看Mysql當前啟動狀態（排除因未關閉導致無法啟動）

運行用戶權限是否發生變化，如之前用root，現在用user（排除權限問題）

如果第一步就可以啟動，則說明新配置有問題，根據響應Mysql版本查一下啟動參數是不是寫錯，以上。