request_buffering gotchas?

[sdizazzo]

Hi!

I'm new to nginx, and working on trying to stream an upload using a
multipart-form through nginx to uwsgi and to my app.  My client posts the
request, and I expect nginx to begin forwarding it on to uwsgi as soon as
data begins coming in...but...no matter what I do, uwsgi is not called until
after the upload buffers in nginx.  The entire upload completes, and \then\
the uwsgi call is made.

I am sure the correct option is 

uwsgi_request_buffering off;

...but I'm wondering if there are any other requirements or options that
need to be set, or gotchas that might be thwarting my attempt to make this
work.  It ain't working and I'm at my wit's end.

Thanks in advance for any advice!

~Sean

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,274265,274265#msg-274265