mysql多实例配置

垃圾宝宝2024-09-07 15:47

1、配置文件

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[root@elk101 system]#cat /data1/myconf/330{7,8,9}/my.cnf

[mysqld]
user=mysql
basedir=/ljbb/app/mysql
datadir=/data1/3307/data
socket=/tmp/mysql3307.sock
port=3307
[mysql]
socket=/tmp/mysql3307.sock

[mysqld]
user=mysql
basedir=/ljbb/app/mysql
datadir=/data1/3308/data
socket=/tmp/mysql3308.sock
port=3308
[mysql]
socket=/tmp/mysql3308.sock

[mysqld]
user=mysql
basedir=/ljbb/app/mysql
datadir=/data1/3309/data
socket=/tmp/mysql3309.sock
port=3309
[mysql]
socket=/tmp/mysql3309.sock
[root@elk101 system]#

2、systemd服务

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[root@elk101 system]#cat /etc/systemd/system/mysqld330{7,8,9}.service

[Service]
ExecStart=/ljbb/app/mysql/bin/mysqld --defaults-file=/data1/myconf/3307/my.cnf

[Service]
ExecStart=/ljbb/app/mysql/bin/mysqld --defaults-file=/data1/myconf/3308/my.cnf

[Service]
ExecStart=/ljbb/app/mysql/bin/mysqld --defaults-file=/data1/myconf/3309/my.cnf

3、初始化

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mysqld --initialize-insecure --user=mysql --basedir=/ljbb/app/mysql --datadir=/data1/330{7,8,9}/data

4、启动

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[root@elk101 system]#systemctl start mysqld330{7,8,9}.service

5、socket连接

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mysql -S /tmp/mysql3307.sock
mysql -S /tmp/mysql3308.sock
mysql -S /tmp/mysql3309.sock

6、监听端口

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[root@elk101 system]#ss -ntl
State      Recv-Q Send-Q                   Local Address:Port                                  Peer Address:Port                   
LISTEN     0      80                                  :::3307                                            :::*                  
LISTEN     0      80                                  :::3308                                            :::*                  
LISTEN     0      80                                  :::3309                                            :::*