varnish incorrect back-end selection problem

[Andreas Plesner Jacobsen]

On Thu, Nov 10, 2011 at 09:35:05PM +0000, Guy Brodie wrote:
> 
> * http tcp session re-use - the browser is re-using a single TCP session when
> this happens,  but I thought varnish inspects every request regardless - i.e.
> it doesn't blindly pass an existing TCP session from the browser through to
> the backend server it had previously selected…

This can happen if you pipe.

https://www.varnish-cache.org/trac/wiki/VCLExamplePipe

-- 
Andreas