Shulou(Shulou.com)06/02 Report--

The default source of the centos7 system is mariadb, and there is no mysql. If you want to install mysql, you have to do it manually.

1, first of all, install the official source of mysql, the official address

Https://dev.mysql.com/downloads/repo/yum/

We choose the centos7 version to download

Or download directly using wget

Wget-o mysql_repo.rpm https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm

2, and then use yum to install the source

Yum install mysql_repo.rpm

If you look at / etc/yum.repos.d, you will find that the mysql-community.repo file has been generated

The default is 8.0 source. If you want to install version 5.7, you need to modify this file.

Vi mysql-community.repo

Find [mysql80-community] and change the enabled=1 below to 0

Find [mysql57-community] and change the enabled=0 below to 1

Save, exit

3, and then you can install mysql5.7 on yum:

Yum install mysql-community-server

4. After the installation is complete, set Boot self and start the mysql service:

Systemctl enable mysqld & & systemctl start mysqld

5, view the random password and modify it

View the initial password:

Grep 'password' / var/log/mysqld.log

Log in to mysql with the initial password and change the password to a custom password mima123:

Set global validate_password_policy=0

Alter user root@localhost identified by 'mima123'

At this point, the mysql5.7 installation is complete.

If the official source is too slow during installation, you can solve it by modifying the source

After testing, the source speed of Beijing Institute of Technology is still relatively fast.

Http://mirrors.bit.edu.cn/mysql/yum/mysql57-community-el7/

Vi mysql-community.repo

Find [mysql57-community] and modify baseurl

Baseurl= http://mirrors.bit.edu.cn/mysql/yum/mysql57-community-el7

Save and exit, and then install, the speed should be fast.

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