Round-Robin Director Backends

[Enno van Amerongen]

Not automatically, but you can put the following in your vcl_fetch.
However, if its a genuine 404, 10 backends will be bothered with it.

sub vcl_fetch {

    if (beresp.status == 404) {
        if (req.restarts < 10) {
            return (restart);
        }
    }

    return (deliver);
}



Corey Hammerton wrote:
>
> Hello,
>
>  
>
> I have an environment with multiple backend servers that require most
> images (static content) be replicated out to all servers, this is
> causing unnecessary load on our backend servers. To mitigate this
> problem we plan to put in a Varnish system to grab the assets from the
> backend servers and send them to the client VIA a round-robin director.
>
>  
>
> If Varnish cannot find the asset on the current backend server does it
> automatically go to the next backend in the list? If not what VCL code
> do we need to insert to accomplish this?
>
>  
>
>  
>
> Regards,
>
>  
>
> Corey
>
>  
>
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>
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