If you mean a slave that replicates more than one master, that is not possible --
ie, this is not possible: Master1 ---------- |--> Slave Master 2 --------- However, if you mean: Master 1 <-------> Master2 Then all you have to do is set up replication so Master2 is a slave of Master1, and then set up Master1 to be a slave of Master2, using the regular instructions: http://dev.mysql.com/doc/refman/5.0/en/replication-howto.html Note that this is potentially dangerous because of the possibility of duplicating unique keys. On 2/10/06, 罗新荣 <[EMAIL PROTECTED]> wrote: > hello ! > Has anybody used of Multiple-master replication? > > How to set up? > > How to modify the my.cnf file? > > Thank you very much!!! > > > > [EMAIL PROTECTED] > 2006-02-10 >