我在源码编译安装mysql后，虽然mysql服务可以正常启动，但是当我直接执行mysql后，出现了错误。

错误提示如下：

[root@server98 ~]# mysql

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

出现错误原因：

由于mysql 默认的mysql.sock 是在/var/lib/mysql/mysql.sock，但linux系统总是去/tmp/mysql.sock查找，所以会报错。

[root@server98 ~]# find / -name mysql.sock

/usr/local/mysql/data/mysql.sock

解决方法如下：

1.直接指定mysql通道

[root@server98 ~]# mysql --socket=/usr/local/mysql/data/mysql.sock

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 4

Server version: 5.6.10 Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

2.创建符号链接（软链接）

为mysql.sock增加软链接（相当与Windows下的快捷方式）

[root@server98 tmp]#ln -s /usr/local/mysql/data/mysql.sock /tmp/mysql.sock

[root@server98 ~]# mysql

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 5

Server version: 5.6.10 Source distribution

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>