Centos 安装mysql8(YUM方式)

1、执行安装命令
[root@localhost ~]# wget https://dev.mysql.com/get/mysql80-community-release-el8-4.noarch.rpm

[root@localhost ~]# yum module disable mysql

[root@localhost ~]# yum install mysql-community-server

2、修改配置文件

[root@localhost ~]# vi /etc/my.cnf

[root@localhost ~]# 新增配置

wait_timeout=32000

slow_query_log = ON
slow_query_log_file = /var/log/mysql/slow.log
long_query_time = 2

character-set-client-handshake = FALSE
character-set-server = utf8mb4
collation-server = utf8mb4_general_ci
init_connect='SET NAMES utf8mb4'
max_connections=1000

3、设置开机启动

[root@localhost ~]# systemctl enable mysqld

[root@localhost ~]# systemctl daemon-reload

4、启动mysql

[root@localhost ~]# systemctl start mysqld

5、查找初始密码

grep 'temporary password' /var/log/mysqld.log

如果无效 修改 /etc/my.cnf 添加 skip-grant-tables 后重新启动

然后mysql -u root -p 进入mysql 修改密码为空

update user set authentication_string='' where user='root'; 

将skip-grant-tables删除后，重新启动

ALTER USER USER() IDENTIFIED BY 'Admin2023!';

6、创建数据库

mysql>  create database 'easydb';

mysql>   CREATE USER 'test'@'%' IDENTIFIED with mysql_native_password  BY 'Test_0316';

mysql>  GRANT ALL ON easydb.* TO 'test'@'%' WITH GRANT OPTION;