DNS Server Cluster

[Mark de Vries]

On Mon, 27 Nov 2006, Simon Pearce wrote:

>
> Hi,
>
>
> I am running a dns cluster with 6 Servers running Gentoo Linux two load
> balancers with an active active setup and 4 real servers running
> powerdns.
> Each server has a 3Ghz Pentium 4 and 1 Gig of Ram. At the moment i am
> migrating our windows bind9 cluster to the new linux cluster. I have a
> total of about 250 IP addresses to migrate and here's where the problems
> start. Everytime time the dns cluster exceedes a certain limit some of
> the ip addresses stop working properly. It effects the system in a way
> that for certain domains you get a timeout when querying the cluster.

What have you done to confirm the source of the problem is the LVS cluster 
and not in the the realservers?

> Some of the transfered IP's seem to stop working or slow down to an

When this 'seems' to happen, can you reproduce it yourself? e.g. You query 
the VIPS and get timeouts? And what if you query the realservers from the 
directors?

Regards,
Mark.