Proxy without buffering

[double]

Hello,

Large POST-request are buffered to disk, before passed to the backend.
The backend has troubles to parse the POST-data, if the requests are huge
(some GB).

We use "haproxy" in front of "nginx", to workaround this issue.
But this causes extra load on the server.
Is there a chance to disable the request buffering?

Thanks a lot
Markus

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,236568,236568#msg-236568