Linux 下 MySQL初级知识
一个很初级的例子Linux MySQL更改MySQL数据库目录位置MySQL默认的数据文件存储目录为/var/lib/mysql。假如要把目录移到/home/dat
一个很初级的例子
Linux MySQL更改MySQL数据库目录位置
MySQL默认的数据文件存储目录为/var/lib/mysql。假如要把目录移到/home/data下需要进行下面几步:
1、home目录下建立data目录
cd /homemkdir data
2、把MySQL服务进程停掉:
mysqladmin -u root -p shutdown
3、把/var/lib/mysql整个目录移到/home/data
mv /var/lib/mysql /home/data/
这样就把MySQL的数据文件移动到了/home/data/mysql下
4、找到my.cnf配置文件
如果/etc/目录下没有my.cnf配置文件,()请到/usr/share/mysql/下找到*.cnf文件,拷贝其中一个到/etc/并改名为my.cnf)中。命令如下:
[root@test1 mysql]# cp /usr/share/mysql/my-medium.cnf /etc/my.cnf
5、编辑MySQL的配置文件/etc/my.cnf
为保证MySQL能够正常工作,需要指明mysql.sock文件的产生位置。修改socket=/var/lib/mysql/mysql.sock一行中等号右边的值为:/home/mysql/mysql.sock 。操作如下:
vi my.cnf (用vi工具编辑my.cnf文件,找到下列数据修改之)# The MySQL server[mysqld] port = 3306#socket = /var/lib/mysql/mysql.sock(原内容,为了更稳妥用“#”注释此行)socket = /home/data/mysql/mysql.sock ( 上此行)
6、修改MySQL启动脚本/etc/init.d/mysql
最后,需要修改MySQL启动脚本/etc/init.d/mysql,把其中datadir=/var/lib/mysql一行中,等号右边的路径改成你现在的实际存放路径:home/data/mysql。
[root@test1 etc]# vi /etc/init.d/mysql#datadir=/var/lib/mysql(注释此行)datadir=/home/data/mysql ( 上此行)
7、重新启动MySQL服务
/etc/init.d/mysql start
或用reboot命令重启Linux
如果工作正常移动就成功了,,否则对照前面的7步再检查一下。还要注意目录的属主和权限。

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