目录

1、下载安装包并解压

2、创建数据目录与日志目录

3、设置环境变量

4、刷新环境变量

5、执行初始化

6、创建配置文件目录

7、新建配置文件

8、为安装目录赋予可执行权限

9、创建服务启动脚本

10、启动服务并将启动脚本加入开机自启动

11、查看服务状态

12、创建mysql.sock软连接

13、设置root账号密码

14、打开防火墙

15、使用工具远程连接测试是否正常

1、下载安装包并解压

cd /energy/apps-local/lib

wget -O mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz https://downloads.mysql.com/archives/get/p/23/file/mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz

tar -zxvf mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz

mv mysql-5.7.44-linux-glibc2.12-x86_64 mysql

2、创建数据目录与日志目录

mkdir -p /energy/apps-local/data/mysql 

mkdir -p /energy/apps-local/logs/mysql

3、设置环境变量

# 将以下代码加入/etc/profile末尾 
# MySQL 
export PATH=/energy/apps-local/lib/mysql/bin:$PATH

4、刷新环境变量

source /etc/profile

5、执行初始化

# 初始化，通过指定--initialize-insecure参数不创建初始密码 
mysqld --initialize-insecure --user=root --basedir=/energy/apps-local/lib/mysql --datadir=/energy/apps-local/data/mysql

6、创建配置文件目录

mkdir -p /energy/apps-local/lib/mysql/my.cnf.d

7、新建配置文件

新建/energy/apps-local/lib/mysql/my.cnf.d/mysql-client.cnf，清空并重新录入以下内容

[mysqld]
datadir=/energy/apps-local/data/mysql
basedir=/energy/apps-local/lib/mysql
user=root
bind-address=0.0.0.0
port=3306
character-set-server=utf8
explicit_defaults_for_timestamp=1
socket=/energy/apps-local/data/mysql/mysql.sock
max_connections=2000
max_user_connections=600
log-bin=/energy/apps-local/data/mysql/mysql-bin
server-id=1

pid-file=/energy/apps-local/data/mysql/mysqld.pid
log-error=/energy/apps-local/logs/mysql/mysqld.log

slow_query_log=1
slow_query_log_file=/energy/apps-local/logs/mysql/slow-query.log 
long_query_time=5

[client]
socket=/energy/apps-local/data/mysql/mysql.sock

8、为安装目录赋予可执行权限

chown -R root:root /energy/apps-local/lib/mysql 

chmod -R 700 /energy/apps-local/lib/mysql

9、创建服务启动脚本

创建systemctl启动脚本/usr/lib/systemd/system/mysqld.service，并录入以下内容

[Unit]
Description=mysqld
After=syslog.target network.target

[Service]
User=root
PrivateTmp=true
Restart=always
ExecStart=/energy/apps-local/lib/mysql/bin/mysqld --defaults-file=/energy/apps-local/lib/mysql/my.cnf.d/mysql-client.cnf

[Install]
WantedBy=multi-user.target

10、启动服务并将启动脚本加入开机自启动

systemctl enable --now mysqld

11、查看服务状态

systemctl status mysqld

12、创建mysql.sock软连接

ln -s /energy/apps-local/data/mysql/mysql.sock /tmp/mysql.sock

13、设置root账号密码

本地登录并为root账户，创建“root@%”账户并赋予权限

# 以root身份登录
$ mysql -u root

# 修改root密码
mysql> use mysql;

# 创建“root@%”账户并赋权
mysql> create user root identified by 'root123456';
mysql> grant all privileges on *.* to 'root '@'%' identified by 'root123456' with grant option; 

14、打开防火墙

firewall-cmd --zone=drop --add-port=3306/tcp --permanent 

firewall-cmd --reload

15、使用工具远程连接测试是否正常