MySQL报错ERROR1872(HY000):Slave failed to initialize

ERROR 1872 (HY000): Slave failed to initialize relay log info structure from the repository

MySQL 5.6修复从库复制时报错

mysql> start slave;

ERROR 1872 (HY000): Slave failed to initialize relay log info structure from the repository

报错原因：

从库已经存在之前的relay log

解决方法：

使用RESET SLAVE语句，清除master信息和relay日志的信息，删除所有的relay日志文件，并开始创建一个全新的中继日志

mysql> stop slave;

mysql> reset slave;