Centos 7中将MySQL数据库软件从默认的程序列表中移除,用mariadb代替。
也就是说不能再跟之前6一样,直接使用yum进行安装,需要使用官网提供的软件源进行安装,此次安装版本为5.7
1. 安装官网提供的yum源
# wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
# rpm -ivh mysql57-community-release-el7-11.noarch.rpm
2. 安装MySQL
# yum -y install mysql-server
3. 修改Mysql配置文件
[root@host-192-168-8-37 ~]# vim /etc/my.cnf
[mysqld]
character-set-server=utf8
4. 启动MySQL
q 启动MySQL
[root@master ~]# systemctl start mysqld
q 设置MySQL为开机启动
[root@master ~]# systemctl enable mysqld
5. 修改密码&进入MySQL数据库
Mysql5.7版本及之后不再使用空密码,在安装时会生成临时密码并保存在日志文件中
[root@host-192-168-8-37 ~]# grep 'password' /var/log/mysqld.log
2017-10-16T02:12:56.016829Z 1 [Note] A temporary password is generated for root@localhost: #zua)gQ?e5Gi
这里将用户的密码修改为:Mysql_password123
[root@host-192-168-8-37 yum.repos.d]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.7.19
Copyright (c) 2000, 2017, 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 'Mysql_password123';
Query OK, 0 rows affected (0.00 sec)
mysql>
6. 配置MySQL
q 创建数据库(数据库名称:cache_cloud;编码:UTF-8)
mysql> create database cache_cloud default charset utf8;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| cache_cloud |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.01 sec)
mysql>
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