CentOS Mysql安装

yum list | grep mysql
yum install mysql-server

Mysql 配置

目的:把data文件和log文件移动到另外一张磁盘上.如下:
注意:最好先不要执行 service mysqld start命令
1. 移动 /var/lib/mysql 目录到指定目录 , 这里为 /data/mysql目录
mv /var/lib/mysql /data/
2. 修改 /data/mysql目录权限
chown -R mysql:mysql /data/mysql
3. 修改 /etc/my.cnf文件内容

[mysqld]datadir=/data/mysqlsocket=/data/mysql/mysql.sockuser=mysql# Disabling symbolic- s is recommended to prevent assorted security riskssymbolic- s=0# charsetdefault-character-set=utf8default-collation=utf8_general_cicharacter-set-server=utf8collation-server=utf8_general_ciinit-connect='SET NAMES utf8'[mysqld_safe]log-error=/data/mysql/log/mysqld.logpid-file=/var/run/mysqld/mysqld.pid[client]default-character-set=utf8socket=/data/mysql/mysql.sock

注意:mysqld 中socket的配置必须和 client 中socket的配置一致.
4. 创建用户并赋予权限
create user ‘username’ identified by ‘password’;
grant all on *.* to username;
5. 启动
service mysqld start