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Re: Multiple masters to single slave
Posted by: Rick James
Date: December 19, 2008 12:30AM

A slave can have only one master.

You can have multiple slaves on one box -- but you need to keep the data and my.cnf (my.ini) and port different. This won't solve the problem because you still cannot have a single mysql instance reading from all the tables in the various "slaves" on the box.

If your replication traffic is low, you could programatically SLAVE STOP; CHANGE MASTER ...; wait awhile, then move on to another master. There is no problem with the slave "picking up where it left off". But you had better have different databases and/or tables on the masters; else the slave would be quite confused.

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