Strategies for splitting load across varnish instances? Andavoiding single-point-of-failure?

[Poul-Henning Kamp]

In message <53C652A09719C54DA24741D0157CB26904C5F464 at TFPRDEXS1.tf1.groupetf1.fr

>> It's probably simplest to paraphrase the code:
>> 
>> 	Calculate hash over full complement of backends.
>>	Is the selected backend sick
>>		Calculate hash over subset of healthy backends
>
>Let's get back to consistent hashing and it's use...
>
>Correct me if I am wrong, but doesn't this mean that adding a new 
>varnish instance implies a full rehash ? 

Yes, that is pretty much guaranteed to be the cost with any
stateless hashing.

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