OpenAnolis8二进制部署MySQL5.7

OpenAnolis8二进制部署MySQL5.7🌘

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准备工作：

系统如有mariadb先卸载。

[root@localhost ~]# rpm -qa | grep mariadbrpm -qa | grep mariadb
[root@localhost ~]# yum remove mariadb

1.下载二进制安装包

[root@iZ2ze66iglnmnfsqn6kxtiZ ~]# wget https://downloads.mysql.com/archives/get/p/23/file/mysql-5.7.39-linux-glibc2.12-x86_64.tar.gz

如果没有libaio，需先安装libaio

[root@localhost ~]# rpm -qa | grep libaio
libaio-0.3.112-1.0.1.an8.x86_64
[root@localhost ~]# yum -y install libaio    （如没有libaio，安装命令）

2.解压安装

[root@localhost ~]# tar -xvf mysql-5.7.39-linux-glibc2.12-x86_64.tar.gz -C /usr/local/
[root@localhost ~]# cd /usr/local
[root@localhost local]# mv mysql-5.7.39-linux-glibc2.12-x86_64/  mysql

3.创建mysql用户及组

[root@localhost ~]# groupadd mysql
[root@localhost ~]# useradd -r -g mysql -s /sbin/nologin mysql

4.创建mysql数据目录

[root@localhost ~]# mkdir /var/lib/mysql
[root@localhost ~]# chown -R mysql:mysql /var/lib/mysql
[root@localhost ~]# mkdir /var/log/mysql
[root@localhost ~]# chown -R mysql:mysql /var/log/mysql

5.创建mysql配置文件

[root@localhost ~]# vim /etc/my.cnf
[client]
# 默认连接 MySQL 时使用的字符集
default-character-set = utf8mb4
socket=/var/lib/mysql/mysql.sock[mysqld]
user=mysql
socket=/var/lib/mysql/mysql.sock
port=3306
pid-file=/var/lib/mysql/mysql.pid
basedir=/usr/local/mysql
datadir=/var/lib/mysqllower_case_table_names = 1
explicit_defaults_for_timestamp = 1

#日志配置
log-error = /var/log/mysql/error.log
slow-query-log = 1
slow-query-log-file = /var/log/mysql/mysql-slow.log
long_query_time = 2# 字符集设置及排序规则
character-set-server = utf8mb4
collation-server = utf8mb4_general_ci

6.配置环境变量

[root@localhost ~]# vim /etc/profile
export PATH=$PATH:/usr/local/mysql/bin
[root@localhost ~]# source /etc/profile

7.初始化MySQL

[root@localhost ~]# /usr/local/mysql/bin/mysqld  --defaults-file=/etc/my.cnf --initialize-insecure --user=mysql

==使用--initialize参数，则会生成临时密码==2022-12-06T07:28:42.142154Z 1 [Note] A temporary password is generated for root@localhost: %NwqJp,7Tu2g==使用--initialize-insecure参数，可以直接登录mysql，无需密码。==

8.启动MySQL

[root@localhost ~]# /usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/my.cnf &

使用system管理MySQL（推荐）：

[root@localhost ~]# vim /usr/lib/systemd/system/mysql.service
[Unit]
Description=mysql
After=network.target remote-fs.target nss-lookup.target
[Service]
Type=forking
ExecStart=/usr/local/mysql/support-files/mysql.server start
ExecReload=/usr/local/mysql/support-files/mysql.server restart
ExecStop=/usr/local/mysql/support-files/mysql.server stop
PrivateTmp=false
[Install]
WantedBy=multi-user.target

开机自启

[root@localhost ~]# systemctl daemon-reload
[root@localhost ~]# systemctl enable --now mysql

9.登录MySQL并修改密码

使用--initialize-insecure参数初始化时，可以直接登录mysql

[root@localhost ~]# mysql -uroot 
mysql> alter user 'root'@'localhost' identified by '123456';
mysql> flush privileges;