修改MariaDB 路径

1、把mariadb服务停掉：
　　service mariadb stop

2、把/var/lib/mysql整个目录复制到/work,
　sudo　mkdir /work/data
sudo cp -arp /var/lib/mysql/ /work/data

sudo mv /var/lib/mysql /var/lib/mysql.bak

　　这样就把MySQL的数据文档复制到了/work/data下了

4、编辑mariadb的配置文档

sudo vi /etc/my.cnf.d/client.cnf
[client]
socket=/work/data/mysql/mysql.sock

#:wq 保存退出

sudo vi /etc/my.cnf.d/server.cnf
[mysqld]
character-set-server = utf8
collation-server = utf8_general_ci
socket=/work/data/mysql/mysql.sock
datadir=/work/data/mysql

#:wq 保存退出

5、重新启动mariadb服务

sudo service mariadb start