CentOS8搭建Web服务器笔记3 Mysql8+Redis6数据库

本文详细记录了在CentOS8系统上安装和配置MySQL8及Redis6的过程,包括安装Yum Repository、设置root密码、允许远程访问、配置字符集、编译安装Redis、设置后台运行、配置多实例以及安装PHP Redis扩展等步骤,是搭建Web服务器的重要参考资料。

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1. Mysql

1.1 安装

1.1.1 查询下载版本

https://dev.mysql.com/downloads/repo/yum/
在这里插入图片描述

1.1.2 下载安装Yum Repository

wget -i -c https://dev.mysql.com/get/mysql80-community-release-el8-1.noarch.rpm

[root@VM-0-16-centos ~]# cd /usr/local/downloads
[root@VM-0-16-centos downloads]# wget -i -c https://dev.mysql.com/get/mysql80-community-release-el8-1.noarch.rpm
--2021-02-25 20:56:48--  https://dev.mysql.com/get/mysql80-community-release-el8-1.noarch.rpm
Resolving dev.mysql.com (dev.mysql.com)... 137.254.60.11
Connecting to dev.mysql.com (dev.mysql.com)|137.254.60.11|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://repo.mysql.com//mysql80-community-release-el8-1.noarch.rpm [following]
--2021-02-25 20:56:50--  https://repo.mysql.com//mysql80-community-release-el8-1.noarch.rpm
Resolving repo.mysql.com (repo.mysql.com)... 184.50.117.5
Connecting to repo.mysql.com (repo.mysql.com)|184.50.117.5|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 30388 (30K) [application/x-redhat-package-manager]
Saving to: ‘mysql80-community-release-el8-1.noarch.rpm’

mysql80-community-release-e 100%[===========================================>]  29.68K  38.7KB/s    in 0.8s    

2021-02-25 20:56:55 (38.7 KB/s) - ‘mysql80-community-release-el8-1.noarch.rpm’ saved [30388/30388]

-c: No such file or directory
No URLs found in -c.
FINISHED --2021-02-25 20:56:55--
Total wall clock time: 6.8s
Downloaded: 1 files, 30K in 0.8s (38.7 KB/s)

yum -y install mysql80-community-release-el8-1.noarch.rpm

[root@VM-0-16-centos downloads]# yum -y install mysql80-community-release-el8-1.noarch.rpm 
Repository AppStream is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository PowerTools is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Last metadata expiration check: 0:05:12 ago on Thu 25 Feb 2021 08:53:29 PM CST.
Dependencies resolved.
================================================================================================================
 Package                                Architecture        Version             Repository                 Size
================================================================================================================
Installing:
 mysql80-community-release              noarch              el8-1               @commandline               30 k

Transaction Summary
================================================================================================================
Install  1 Package

Total size: 30 k
Installed size: 29 k
Downloading Packages:
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                        1/1 
  Installing       : mysql80-community-release-el8-1.noarch                                                 1/1 
  Verifying        : mysql80-community-release-el8-1.noarch                                                 1/1 

Installed:
  mysql80-community-release-el8-1.noarch                                                                        

Complete!

1.1.3 yum安装 Server

yum -y install mysql-server
[root@VM-0-16-centos downloads]# yum -y install mysql-server          
Repository AppStream is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository PowerTools is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Last metadata expiration check: 0:17:27 ago on Thu 25 Feb 2021 09:00:38 PM CST.
Dependencies resolved.
================================================================================================================
 Package                         Arch        Version                                       Repository      Size
================================================================================================================
Installing:
 mysql-server                    x86_64      8.0.21-1.module_el8.2.0+493+63b41e36          AppStream       22 M
Installing dependencies:
 mariadb-connector-c-config      noarch      3.1.11-2.el8_3                                AppStream       15 k
 mecab                           x86_64      0.996-1.module_el8.2.0+493+63b41e36.9         AppStream      393 k
 mysql                           x86_64      8.0.21-1.module_el8.2.0+493+63b41e36          AppStream       12 M
 mysql-common                    x86_64      8.0.21-1.module_el8.2.0+493+63b41e36          AppStream      148 k
 mysql-errmsg                    x86_64      8.0.21-1.module_el8.2.0+493+63b41e36          AppStream      581 k
 protobuf-lite                   x86_64      3.5.0-13.el8                                  AppStream      149 k
Enabling module streams:
 mysql                                       8.0                                                               

Transaction Summary
================================================================================================================
Install  7 Packages

Total download size: 35 M
Installed size: 182 M
Downloading Packages:
(1/7): mariadb-connector-c-config-3.1.11-2.el8_3.noarch.rpm                     447 kB/s |  15 kB     00:00    
(2/7): mysql-common-8.0.21-1.module_el8.2.0+493+63b41e36.x86_64.rpm             4.5 MB/s | 148 kB     00:00    
(3/7): mecab-0.996-1.module_el8.2.0+493+63b41e36.9.x86_64.rpm                   5.0 MB/s | 393 kB     00:00    
(4/7): mysql-errmsg-8.0.21-1.module_el8.2.0+493+63b41e36.x86_64.rpm             5.6 MB/s | 581 kB     00:00    
(5/7): protobuf-lite-3.5.0-13.el8.x86_64.rpm                                    3.6 MB/s | 149 kB     00:00    
(6/7): mysql-8.0.21-1.module_el8.2.0+493+63b41e36.x86_64.rpm                     37 MB/s |  12 MB     00:00    
(7/7): mysql-server-8.0.21-1.module_el8.2.0+493+63b41e36.x86_64.rpm              50 MB/s |  22 MB     00:00    
----------------------------------------------------------------------------------------------------------------
Total                                                                            68 MB/s |  35 MB     00:00     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                        1/1 
  Installing       : mariadb-connector-c-config-3.1.11-2.el8_3.noarch                                       1/7 
  Installing       : mysql-common-8.0.21-1.module_el8.2.0+493+63b41e36.x86_64                               2/7 
  Installing       :
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