When you try MySQL master-master replication with two (or more) servers you may often find that in the process of configuring the original master to also act as a slave server (start slave), it fails with the following error: ��� ������ ������ ������� - ����� ������� �� ����� (�� ����) ����� ������ ������ �� ��� �� ���� �� ������� �� ����� ����� ������ ���� ��� ������� �� ������� ��� ������ ��� ���� ���� (����� ������) � ���� �� �� ����� ������� :

mysql> start slave; ������> ��� ������ �
ERROR 1200 (HY000): The server is not configured as slave; fix in config file or with CHANGE MASTER TO ��� 1200) hy000) : ������ �� ��� ������� ��� ����� ������ � ���� �� ��� ������� �� ������� �� ������� ���


To rectify it locate and delete the master.info file and restart the mysql server. ���� ���� ������ ���� master.info ����� ������ ����� ������ ������. Now try to start slave and it should work. ����� ���� �� ���� ������ ������ ��� �� ����. In short on my machine I did: �������� ��� ��� ���� ����� :
rm /var/lib/mysql/master.info ������ ������ / ��� / ��� / ������ / master.info