Hot Standby Hot Standby
almir at kiberpipa.org
Fri Nov 21 13:31:43 MSK 2008
stupid question, why your idea is any better than having 3 loadbalanced
anyway, what you are asking can be done with recursive error_pages.
On Fri, Nov 21, 2008 at 10:03:56AM +0000, Stephen Nelson-Smith wrote:
> Following on from testing yesterday, I can't see a way to do this:
> * Traffic ---> backend1
> * backend1 fails
> * Traffic ---> backend2 (hot standby)
> * backend2 fails
> * Traffic ---> backend3 (2nd hot standby)
> ie we cannot have a hot-standby-hot-standby.
> The best I have come up with is weighting the two backup backends, so
> only a very small amount of traffic goes to one of the two live backup
> machines. This isn't ideal - the spec I need to meet is to have two
> tiers of failover, with the app only ever running on a single
> How can I achieve this? Is it possible?
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