[Pdns-users] 4 nodes authoritative installation

[a b]

> Good afternoon, I'm planning to implement 4 node authoritative servers
> working in tandem, using mysql circular replication won't be nice
> because if one node fails the replication is broken.
> 
> Though about having a 5th "management server" with mysql running as
> master for the other 4, this can be a tiny virtual machine which will
> be protected by the virtualization farm.
> 
> Another idea would be to work with pairs, each pair in a multimaster
> mysql replication setup, running application level replication between
> pairs
> 
> Any comments?

If you want a highly  available  DNS  setup,  I  would  cordiallyrecommend  that  instead  of  MySQL,  you  configure  Oracle  RAC(preferrably, but not necessarily with ASM) and use the  "oracle"pdns back-end.
This will give you synchronous  multimaster  replication  betweenthe database nodes. 		 	   		  
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