ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock‘()

文章目录

1. 错误产生
2. 错误产生原因解析
3. 修复问题前准备
- 3.1 端口是否打开
- 3.2 mysqld服务是否正在运行
- 3.3 确定“socket”文件正确位置
4. 问题解决方法

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

1. 错误产生

[root@server13 ~]# mysql -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

2. 错误产生原因解析

根据配置文件“/etc/my.cnf”的路径，未找到相应的socket文件，就会引发此错误

3. 修复问题前准备

由于“socket”文件是由mysql服务运行时创建的，如果提示“ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘***’ (2)”，找不到“socket”文件，我们首先要确认的是mysql服务是否正在运行。

3.1 端口是否打开

[root@server13 ~]# netstat -antlp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp6       0      0 :::3306                 :::*                    LISTEN      23667/mysqld

3.2 mysqld服务是否正在运行

[root@server13 ~]# /etc/init.d/mysqld statusSUCCESS! MySQL running (23667)

3.3 确定“socket”文件正确位置

[root@server13 ~]# find / -name '*.sock'
/usr/local/mysql/data/mysql.sock

4. 问题解决方法

修改“/etc/my.cnf”配置文件，在配置文件中添加“[client]”选项和“[mysql]”选项，并使用这两个选项下的“socket”参数值，与“[mysqld]”选项下的“socket”参数值，指向的socket文件路径完全一致。如下：

[root@server13 ~]# vim /etc/my.cnf
[root@server13 ~]# cat /etc/my.cnf
[mysqld]
datadir=/usr/local/mysql/data
socket=/usr/local/mysql/data/mysql.sock
symbolic-links=0
server-id=3[client]
default-character-set=utf8
socket=/usr/local/mysql/data/mysql.sock[mysql]
default-character-set=utf8
socket=/usr/local/mysql/data/mysql.sock

##修改完后，重启mysqld服务，即可解决此问题
[root@server13 ~]# /etc/init.d/mysqld restart
Shutting down MySQL.. SUCCESS!
Starting MySQL. SUCCESS!
[root@server13 ~]# mysql -p
Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.31 Source distributionCopyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.MySQL [(none)]> exit
Bye

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