Master/slave configuration

[Romgo]

Hello,

I know that I can use VIP with any software (corosync, Linux HA...) But
this will not explain the origin of the issue I am facing :)


Even if I use a VIP I can reproduce the issue :
If the first VIP (so the nameserver 1) is down, I'll have the same
drawbacks. As the resolver will timeout before falling back to the second
nameserver.

Right ?



On 9 March 2012 10:13, Phil Mayers <p.mayers at imperial.ac.uk> wrote:

> On 03/08/2012 06:26 PM, michoski wrote:
>
>  Meant to add one thing...  In our configuration, we actually have two
>> recursive VIPs per site, and even considered three (internal IPs are
>> cheap).
>>
>
> We do this.
>
> We also make the two different VIPs use different underlying tech - one is
> an anycast route advertised with eBGP, the other is via load-balancing. The
> diversity of tech gives us a bit more resilience and flexibility - taking
> out the load-balancer no longer destroys DNS, for example.
>
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