### 配置主数据库 my.cnf
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server- id =1
log-bin=master-bin
log-bin-index=master-bin.index
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### 在主数据库上创建同步账号
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create user backup;
GRANT REPLICATION SLAVE ON *.* TO 'backup' @ '192.168.%.%' IDENTIFIED BY 'mysql' ;
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### 配置从数据库 my.cnf
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server- id =2
relay-log-index=slave-relay-bin.index
relay- log=slave-relay-bin
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### 重启mysql服务
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service mysqld restart
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### 连接Master服务
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change master to master_host= '192.168.91.128' ,
master_port=3306,master_user= 'backup' ,master_password= 'mysql' ,
master_log_file= 'master-bin.000001' ,master_log_pos=0;
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### 启动slave服务
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start slave;
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### 查看Master服务状态
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SHOW MASTER STATUS;
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### 查看Slave服务状态
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SHOW slave STATUS \G;
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### 检查server_id是否一样,需要不一样
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show variables like 'server_id' ;
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常见错误
错误: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to work.
解决方式: 检查data目录中的auto.cnf中的server-uuid=******************** 是否一样的,要改为不一样
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原文链接:https://my.oschina.net/Kxvz/blog/715113