问题一：Last_IO_Error：Fator error: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for relication to work;

原因：由于是复制UUIDs冲突了

解决办法：删除UUID

1、stop slave;

2、cd /mysql/data/3306/data/

3、cat auto.cnf

4、rm atuo.cnf