Following on from testing yesterday, I can’t see a way to do this:
Traffic —> backend1
Traffic —> backend2 (hot standby)
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?