
If secondary masters are defined, MASTER_USE_GTID=Slave_pos must be specified for the default master. If MASTER_USE_GTID is specified, only Slave_pos is allowed as value.
If secondary masters are defined, MASTER_USE_GTID=Slave_pos must be specified for the default master. If MASTER_USE_GTID is specified, only Slave_pos is allowed as value.