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CentOS 7.4 64位安装配置MySQL8.0的详细步骤_Mysql_

2023-05-27 481人已围观

简介 CentOS 7.4 64位安装配置MySQL8.0的详细步骤_Mysql_

第一步：获取mysql YUM源

进入mysql官网获取RPM包下载地址

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

点击下载

获取到下载链接：

https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm

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第二步：下载和安装mysql源

•进入mysql文件夹，没有的自行创建

 [root@VM_0_10_centos /]# cd /usr/local/mysql/ [root@VM_0_10_centos mysql]#

•下载源安装包

 [root@VM_0_10_centos mysql]# wget https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm --2018-08-04 10:29:39-- https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm Resolving repo.mysql.com (repo.mysql.com)... 23.219.33.198 Connecting to repo.mysql.com (repo.mysql.com)|23.219.33.198|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 25820 (25K) [application/x-redhat-package-manager] Saving to: ‘mysql80-community-release-el7-1.noarch.rpm' 100%[==========================================================================>] 25,820 112KB/s in 0.2s 2018-08-04 10:29:40 (112 KB/s) - ‘mysql80-community-release-el7-1.noarch.rpm' saved [25820/25820] [root@VM_0_10_centos mysql]# ll total 28 -rw-r--r-- 1 root root 25820 Apr 18 13:24 mysql80-community-release-el7-1.noarch.rpm [root@VM_0_10_centos mysql]#

•安装mysql源

 [root@VM_0_10_centos mysql]# yum -y localinstall mysql80-community-release-el7-1.noarch.rpm

第三步：在线安装MySQL

 [root@VM_0_10_centos mysql]# yum -y install mysql-community-server

下载东西比较多，等几分钟。

第四步：启动Mysql服务

 [root@VM_0_10_centos mysql]# systemctl start mysqld

第五步：设置开机启动

 [root@VM_0_10_centos mysql]# systemctl enable mysqld [root@VM_0_10_centos mysql]# systemctl daemon-reload

第六步：修改root本地登录密码

mysql安装完成之后，在/var/log/mysqld.log文件中给root生成了一个临时的默认密码。用grep命令搜一下

 [root@VM_0_10_centos mysql]# grep "A temporary password is generated for root@localhost" /var/log/mysqld.log 2018-08-02T02:19:55.829527Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: !J:KUwU9y0ZR 2018-08-02T04:49:34.979689Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: pw

这里有三条搜索结果，因为我重复装了3次MySQL，如果第一次安装是只会有一条的。

直接拿到临时默认密码 : nNyK,Y)Wd0-G

•登录MySQL

 [root@VM_0_10_centos mysql]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 8 Server version: 8.0.12 Copyright (c) 2000, 2018, 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>

•更改root账户临时密码

 mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'Pwd123@easyoh.net'; Query OK, 0 rows affected (0.03 sec) mysql>

Pwd123@easyoh.net 请替换成你自己的密码。

(备注 mysql8.0默认密码策略要求密码必须是大小写字母数字特殊字母的组合，至少8位)

第七步：创建新用户、授权、远程登录（不要直接使用root账户登录）

•创建easyoh-mp用户并且授权远程登录

 mysql> CREATE USER 'easyoh-mp'@'%' IDENTIFIED BY 'Pwd123@easyoh.net'; Query OK, 0 rows affected (0.04 sec) mysql> GRANT ALL ON *.* TO 'easyoh-mp'@'%'; Query OK, 0 rows affected (0.03 sec) mysql>

•在sqlyog客户端用easyoh-mp账户登录（其他客户端也可以，随意）

发现会报plugin caching_sha2_password错误。这是因为MySQL8.0密码策略默认为caching_sha2_password。与5.7有所不同。

•进入MySQL数据库查询user表信息

 mysql> use mysql; Database changed mysql> select user,host,plugin from user; +------------------+-----------+-----------------------+ | user | host | plugin | +------------------+-----------+-----------------------+ | easyoh-mp | % | caching_sha2_password | | mysql.infoschema | localhost | caching_sha2_password | | mysql.session | localhost | caching_sha2_password | | mysql.sys | localhost | caching_sha2_password | | root | localhost | caching_sha2_password | +------------------+-----------+-----------------------+ 5 rows in set (0.00 sec) mysql>

发现确实是caching_sha2_password

•依次执行下面语句

 mysql> ALTER USER 'easyoh-mp'@'%' IDENTIFIED BY 'Pwd123@easyoh.net' PASSWORD EXPIRE NEVER; Query OK, 0 rows affected (0.04 sec) mysql> ALTER USER 'easyoh-mp'@'%' IDENTIFIED WITH mysql_native_password BY 'Pwd123@easyoh.net'; Query OK, 0 rows affected (0.05 sec) mysql> FLUSH PRIVILEGES; Query OK, 0 rows affected (0.01 sec) mysql>

再次登录就可以登录成功了。

第8步：编码

 mysql> show variables like '%character%'; +--------------------------+--------------------------------+ | Variable_name | Value | +--------------------------+--------------------------------+ | character_set_client | utf8mb4 | | character_set_connection | utf8mb4 | | character_set_database | utf8mb4 | | character_set_filesystem | binary | | character_set_results | utf8mb4 | | character_set_server | utf8mb4 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql-8.0/charsets/ | +--------------------------+--------------------------------+ 8 rows in set (0.01 sec) mysql>

MySQL8.0默认就是utf8mb4编码，无需更改。

OK 至此 Mysql安装配置完毕；

全流程操作记录

 [root@VM_0_10_centos ~]# [root@VM_0_10_centos /]# cd /usr/local/mysql/ [root@VM_0_10_centos mysql]# wget https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm --2018-08-04 10:29:39-- https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm Resolving repo.mysql.com (repo.mysql.com)... 23.219.33.198 Connecting to repo.mysql.com (repo.mysql.com)|23.219.33.198|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 25820 (25K) [application/x-redhat-package-manager] Saving to: ‘mysql80-community-release-el7-1.noarch.rpm' 100%[==========================================================================>] 25,820 112KB/s in 0.2s 2018-08-04 10:29:40 (112 KB/s) - ‘mysql80-community-release-el7-1.noarch.rpm' saved [25820/25820] [root@VM_0_10_centos mysql]# ll total 28 -rw-r--r-- 1 root root 25820 Apr 18 13:24 mysql80-community-release-el7-1.noarch.rpm [root@VM_0_10_centos mysql]# yum -y localinstall mysql80-community-release-el7-1.noarch.rpm Loaded plugins: fastestmirror, langpacks Examining mysql80-community-release-el7-1.noarch.rpm: mysql80-community-release-el7-1.noarch Marking mysql80-community-release-el7-1.noarch.rpm to be installed Resolving Dependencies --> Running transaction check ---> Package mysql80-community-release.noarch 0:el7-1 will be installed --> Finished Dependency Resolution Dependencies Resolved ==========================================================================================================================================
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