mysql服务多实例运行

1、官网下载mysql安装包

https://downloads.mysql.com/archives/community/

2、解压安装包

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tar  -zxvf  mysql-8.1.0-linux-glibc2.28-aarch64.tar.xz  -C  /usr/local

mv  /usr/local/mysql-8.1.0-linux-glibc2.28-aarch64   /usr/local/mysql

3、创建mysql用户组

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  groupadd mysql

  ueradd -r -g mysql mysql

  chmod  ug+rwx /data/mysql/*
  
  chown mysql:mysql -R /data/mysql/*

4、创建数据存储目录

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mkdir  -p  /data/mysql/3310

mkdir  -p  /data/mysql/3311

5、初始化数据库

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/usr/local/mysql/bin/mysqld --initialize-insecure --datadir=/data/mysql/3310/data --user=mysql

/usr/local/mysql/bin/mysqld --initialize-insecure --datadir=/data/mysql/3311/data --user=mysql

6、实例启动配置文件

3310的配置

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cat >>   /data/mysql/3311/my.cnf  <<   EOF

[mysqld]
bind-address=0.0.0.0
port=3310
basedir=/usr/local/mysql
datadir=/data/mysql/3310/data
socket=/data/mysql/3310/mysql.sock
log-bin=/data/mysql/3310//data/mysql-bin
server-id=3310

[mysqld_safe]
log-error=/data/mysql/3310/mysqld_error.log
pid-file=/data/mysql/3310/mysqld.pid

EOF

3311的配置

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cat  >>  /data/mysql/3311/my.cnf  << 

[mysqld]
bind-address=0.0.0.0
port=3311
basedir=/usr/local/mysql
datadir=/data/mysql/3311/data
socket=/data/mysql/3311/mysql.sock
log-bin=/data/mysql/3311//data/mysql-bin
server-id=3311

[mysqld_safe]
log-error=/data/mysql/3311/mysqld_error.log
pid-file=/data/mysql/3311/mysqld.pid

EOF

7、启动数据库实例

启动3310

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/usr/local/mysql/bin/mysqld_safe  --defaults-file=/data/mysql/3310/my.cnf   2>&1 > /var/log/mysql3310.log  &

启动3311

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/usr/local/mysql/bin/mysqld_safe  --defaults-file=/data/mysql/3311/my.cnf   2>&1 > /var/log/mysql3311.log  &

检测启动状态

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ps -ef  | grep  msyqld

8、客户端连接测试

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 /usr/local/mysql/bin/mysql  -h  127.0.0.1  -P 3310  -u root

 /usr/local/mysql/bin/mysql  -h  127.0.0.1  -P 3311  -u root

设置root密码

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 update user set   authentication_string="root!2018LC"  where user="root"