centos 7.3 mysql5.7 安装

港控/mmm° 2022-05-24 14:11 162阅读 0赞

1，到官网下载安装包：  
[https://www.mysql.com/][https_www.mysql.com]  
![这里写图片描述][70]  
![这里写图片描述][70 1]  
2, 安装：

[root@master /opt/bigdata/service]# rpm -ivh mysql-community-common-5.7.22-1.el7.x86_64.rpm 
    Preparing...                          ################################# [100%] Updating / installing... 1:mysql-community-common-5.7.22-1.e################################# [100%]
    
    [root@master /opt/bigdata/service]# rpm -ivh mysql-community-libs-5.7.22-1.el7.x86_64.rpm 
    Preparing...                          ################################# [100%] Updating / installing... 1:mysql-community-libs-5.7.22-1.el7################################# [100%]
    [root@master /opt/bigdata/service]# rpm -ivh mysql-community-client-5.7.22-1.el7.x86_64.rpm 
    Preparing...                          ################################# [100%] Updating / installing... 1:mysql-community-client-5.7.22-1.e################################# [100%]
    [root@master /opt/bigdata/service]# rpm -ivh mysql-community-server-
    mysql-community-server-5.7.22-1.el7.x86_64.rpm          mysql-community-server-minimal-5.7.22-1.el7.x86_64.rpm  
    [root@master /opt/bigdata/service]# rpm -ivh mysql-community-server-5.7.22-1.el7.x86_64.rpm 
    Preparing...                          ################################# [100%] Updating / installing... 1:mysql-community-server-5.7.22-1.e################################# [100%]

3, 初始化密码：

[root@master /opt/bigdata/service]# mysqld --initialize --user=mysql
    [root@master /opt/bigdata/service]# cat cat /var/log/mysqld.log | grep password
    cat: cat: No such file or directory
    2018-05-28T13:03:28.527740Z 1 [Note] A temporary password is generated for root@localhost: 0wEeI2ylfm?.

4, 启动mysql修改密码：

systemctl start mysqld.service
    
    [root@master /opt/ClusterBuildScripts]# mysql -u root -p
    Enter password: （输入3中得到的初始化密码：）
    Welcome to the MySQL monitor.  Commands end with ; or \g.
    Your MySQL connection id is 2
    Server version: 5.7.22
    
    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> set password = password('12345678');
    Query OK, 0 rows affected, 1 warning (0.00 sec)
    
    mysql> grant all privileges on *.* to 'root' @'%' identified by  'yourpassword';
    Query OK, 0 rows affected, 1 warning (0.00 sec)
    
    mysql> flush privileges;
    Query OK, 0 rows affected (0.00 sec)
    
    mysql> exit
    Bye

5, mysql 启动和停止相关命令

centos  默认启动方式：
    systemctl start mysqld.service
    
    启动：
    
    使用 service 启动：service mysqld start
    使用 mysqld 脚本启动：/etc/inint.d/mysqld start
    使用 safe_mysqld 启动：safe_mysqld&
    停止：
    
    使用 service 启动：service mysqld stop
    使用 mysqld 脚本启动：/etc/inint.d/mysqld stop
    mysqladmin shutdown 
    重启：
    
    使用 service 启动：service mysqld restart
    使用 mysqld 脚本启动：/etc/inint.d/mysqld restart

6, mysql 自启动：

[root@master /]# systemctl list-unit-files | grep mysql 
    mysqld.service                                enabled 
    mysqld@.service                               disabled
    [root@master /]# 
    
    centos 默认自启动
    可以进行取消：
    systemctl disable mysqld
    
    然后在/etc/rc.local
    先执行systemctl start mysqld

[https_www.mysql.com]: https://www.mysql.com/
[70]: /images/20220524/4ddc7a70db56461f8fe217fd1e22552d.png
[70 1]: /images/20220524/575a93905e424964b84ed2dac4945ca4.png