Varnish multiple backend configuration?

[Dag-Erling Smørgrav]

Nathan McSween <nwmcsween at gmail.com> writes:
> Would this work as a simple load balancer configuration?

Yes, except

> backend apache {
>     set backend.host = ""; set backend.port = "80";
> }
>
> backend nginx {
>     set backend.host = ""; set backend.port = "80";
> }

I assume you removed the host names intentionally before posting

> sub vcl_miss {
>     if (req.url ~ "/.(php|py)$") {
>         set req.backend = apache;
>         fetch;
>     } else (req.url ~ "/.(*)$") {
>         set req.backend = nginx;
>         fetch;
>     }
> }

"else" does not take a condition, did you mean "else if"?  In any case,
the second condition is not necessary, and neither are the two "fetch"
statements.  The following should do:

sub vcl_miss {
    if (req.url ~ "/.(php|py)$") {
        set req.backend = apache;
    } else {
        set req.backend = nginx;
    }
}


DES
-- 
Dag-Erling Smørgrav
Senior Software Developer
Linpro AS - www.linpro.no