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[mysqld]
log-bin = /var/log/mysql/mysql-bin.log
server-id = 1

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server-id = 2
relay-log = /var/log/mysql/mysql-relay-bin.log
log_slave_updates = 1
read_only = 1

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upstream db_servers {
    server Ö÷Êý¾Ý¿âIPµØµã;
    server ´ÓÊý¾Ý¿âIPµØµã backup;
}

server {
    listen 3306;
   
    location / {
        proxy_pass http://db_servers;
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    }
}

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[1] MySQL Documentation. Replication. [Á´½Ó]

[2] Nginx Documentation. Proxying TCP and UDP Load Balancing. [Á´½Ó]

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