MySQL master-slave configuration UUID Same error resolution

When configuring MySQL master and slave, because it is a copy of the MySQL directory, resulting in the same master-slave MySQL uuid, slave_io can not start, error message as follows:

The slave I/O thread stops because master and slave have equal MySQL server UUIDs; These uuids must is different for replication to work.

Workaround: Modify the value of the UUID in the auto.cnf file in MySQL data directory, make the two MySQL different, modify and restart the MySQL service.

MySQL master-slave configuration UUID Same error resolution