Re: MirrorMode/N-Way Multi-Master Replication Clarification

[Howard Chu <hyc@symas.com>]

Alan Evans wrote:
> There is another thread "MirrorMode and chaining - are slaves needed?"
> which has caused me some confusion about MirrorMode and N-Way
> Multi-Master Replication.
>
> Is the difference between MirrorMode and N-Way Multi-Master the number
> of nodes?  2 nodes = Mirror Mode, 3+ nodes = Multi-Master?  But both use
> the exact same configuration?
>
> If this is the case the documentation does not make this clear at all
> and using the MirrorMode directive in N-Way Multi-Master is very
> confusing.  Why not "MirrorMode On" OR "MultiMaster On" ??
>
> Is there a way to use two nodes in N-Way Multi-Master replication?

The key element of MirrorMode is that there is an external frontend that 
ensures that all writes are directed to a single server. Otherwise, there is 
no difference.

--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/