each at isc.org
Tue May 6 18:39:38 UTC 2014
On Tue, May 06, 2014 at 06:20:11PM +0000, Baird, Josh wrote:
> For those of you who operate at multiple sites or datacenters, are you
> doing any HA for your BIND masters? Ideally, we would have a master in
> each datacenter; maybe not an active one, but one that is standing by in
> case your primary master becomes unavailable.
> Do you have multiple "active" masters and list them as master in each of
> your slave's zone definitions? This seems like it could get rather
> messy. One thought is to use a technology like VMWare SRM which will
> spin up a master/virtual machine automatically in a second datacenter if
> your primary master goes down. This coupled with Layer2 connectivity
> between your sites could make things fairly simple. The
> standby/secondary master would retain the same IP address as your
> primary, so everything should just *work*.
> What are others doing? Any thoughts, ideas or advice is much
Thank you for bringing this up. As it happens, high-availability/
multi-master support in BIND is something we've been seriously considering
for a future release. There's been a lot of internal discussion of use
cases, requirements, and possible design approaches.
I don't want to influence the conversation here by saying too much about
the ideas we've had so far, but I wanted to say: if anyone has specific
thoughts on how to make this sort of thing easier in BIND -- even just at
the level of "boy, it irritates me that I can't make BIND do <X>" --
such comments will fall on welcoming ears.
Evan Hunt -- each at isc.org
Internet Systems Consortium, Inc.
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