CentOS7使用Yum安装MySQL5.7

简介

• CentOS 7+ 参考文档 https://typecodes.com/linux/yuminstallmysql5710.html
• CentOS 6 参考文档 http://www.voidcn.com/blog/u011630575/article/p-6644797.html (But Maybe it doesn't work!)

安装

Step 0 - 查看系统版本

# CentOS 6
$cat /etc/redhat-release
CentOS release 6.7 (Final)

# CentOS 7
$cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)

Step 1 - 下载MySQL官方的Yum Repository

• 根据Linux发行版本（CentOS、Fedora都属于红帽系），从mysql官方（http://dev.mysql.com/downloads/repo/yum/）获取Yum Repository。

# CentOS 6
$wget http://dev.mysql.com/get/mysql57-community-release-el6-11.noarch.rpm

# CentOS 7
$wget http://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm

Step 2 - 安装MySQL的Yum Repository

# CentOS 6
$yum -y install mysql57-community-release-el6-11.noarch.rpm

# CentOS 7
$yum -y install mysql57-community-release-el7-11.noarch.rpm

Step 3 - 安装MySQL数据库的服务器版本

$yum -y install mysql-community-server

Step 4 - 启动数据库

# CentOS 7
# 启动MySQL数据库
$systemctl start  mysqld.service
# 查看Mysql数据库状态
$systemctl status mysqld.service
# 重启MySQL数据库
$systemctl restart mysqld.service

Step 5 - 获取初始密码并修改

# CentOS 7
$grep "password" /var/log/mysqld.log
2016-02-03T10:42:17.272166Z 1 [Note] A temporary password is generated for root@localhost: ra%yk7urCBIh

$ mysql -uroot -p
Enter password:             #输入密码
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.10

Copyright (c) 2000, 2015, 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> ALTER USER 'root'@'localhost' IDENTIFIED BY 'new password'; -- 注意密码强度
Query OK, 0 rows affected (0.00 sec)

mysql> exit
Bye

Step 6 - 安装完毕

$mysql -uroot -ppassword

Tips

1. 查看Mysql实时连接 show processlist;
2. MySQL服务重启方法 systemctl restart mysqld.service
3. MySQL配置文件默认路径 /etc/my.cnf
4. 更改配置文件设置默认UTF-8编码方式：

[client]
default-character-set=utf8

[mysqld]
character_set_server=utf8
init_connect='SET NAMES utf8'