Hello!

On Thu, Jun 02, 2016 at 12:05:17AM -0400, davidjb wrote:

> Anyone have any thoughts? Even if it's just to say "this isn't possible".

When working with multiple servers within a single upstream{}
block, nginx creates a request only once. If a server fails,
nginx will re-try the same request to a different server. So it's
not possible to supply different parameters for different servers -
because the request is already created.

If you want to send different requests, you have to use other
mechanisms available in nginx, such as error_page fallback. Then
it will be possible to create another request with different
headers / FastCGI parameters.

--
Maxim Dounin
http://nginx.org/

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