Re: Mirror mode difference from N-Way Multi-Master

[John Madden <jmadden@ivytech.edu>]

> As far as I can see there is no difference in configuration. The only
> distinction I can see is the "use case", as N-Way supposed to accept
> writes on all Masters, but Mirror only on one at a time.

There are configuration differences (see the Admin Guide for the needed 
snippets; N-Way requires MirrorMode and then some) but yes, MirrorMode 
requires writes to go to only one node at a time.

> This is not clearly stated anywhere, so do they really differ only in
> proxy/balancer in front of Mirrors?

Well I'd say that's a pretty big difference, wouldn't you? :)

> If so, why can't I do 3 Mirrors with proxy/balancer in front?

You can have multiple replicas, you just have to ensure writes only go 
to the current master.






--
John Madden / Systems Engineer III
Office of Technology / Ivy Tech Community College of Indiana

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