MySQL抱错解决问题

mysql 出现问题

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
解决方方法：
ln  -s /var/lib/mysql/mysql.sock /tmp/mysql.sockln

还有就是去配置文件
mysqld]
#skip-grant-tables
datadir=/usr/local/mysql/data/
#datadir = /opt/mysql/data
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
[client]
#password       = your_password
port            = 3306
socket          = /var/lib/mysql/mysql.sock

mysql_secure_installation

报错  Starting MySQL. ERROR! The server quit without updating PID file (/opt/mysql/data/server.qtf.com.pid)

配置文件路径跟初始化路径不一样

mysql -S /var/lib/mysql/mysql.sock