backend availability

[Dridi Boukelmoune]

I'd go for varnish 4, it can nest your round-robin directors inside a
fallback director.

You can maybe do that with varnish 3 by checking the health of your
activepool director.

Dridi

On Sun, Jun 29, 2014 at 1:04 PM, Ashish Nepal <aashisn at hotmail.com> wrote:
> Hi all,
>
> Is there any work around so that i could say -> minimum set of backendserver
> has to be x if not available add from reserve pool.
>
> e.g. -> i have 5 web servers -> web1,2,3,4,5
>             i have reserve pool of 5 web servers -> web6,7,8,9,10
>
>
> director activepool round-robin {
>     { .backend = web1; }
>     { .backend = web2; }
>     { .backend = web3; }
>     { .backend = web4; }
>     { .backend = web5; }
> }
>
> director reservepool round-robin {
>     { .backend = web6; }
>     { .backend = web7; }
>     { .backend = web8; }
>     { .backend = web9; }
>     { .backend = web10; }
> }
>
> and if web1 is down or web1/2 is down depends upon setting of what is
> minimum set of boxes required. i would like director to pull one of the box
> from reservepool.
>
> or, should this be worth having such feature on backendpolling?
>
>
>
> Regards
> Ashish
>
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