==================

upstream rc {
    server 127.0.0.1:5000;
    # add more instances for load balancing
    #server 127.0.0.1:5001;
    #server 127.0.0.1:5002;

   location /images {
        try_files $uri @static;
   }
   location /css {
        try_files $uri @static;
   }
   location /js {
        try_files $uri @static;
   }

   location / {
        #try_files $uri @static;
        try_files $uri @rhode;
   }

   location @rhode {
        proxy_pass      http://rc;
        include         /etc/nginx/proxy.conf;
   }

   location @static {
        root          
/home/slafs/virtualenvs/rhodecode/lib/python2.6/site-packages/rhodecode/pub lic;
   }

and proxy.conf looks like this:

proxy_redirect              off;
proxy_set_header            Host $host;
proxy_set_header            X-Url-Scheme $scheme;
proxy_set_header            X-Host $http_host;
proxy_set_header            X-Real-IP $remote_addr;
proxy_set_header            X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header            Proxy-host $proxy_host;
client_max_body_size        400M;
client_body_buffer_size     128k;
proxy_buffering             off;
proxy_connect_timeout       7200;
proxy_send_timeout          7200;
proxy_read_timeout          7200;
proxy_buffers               8 32k;

===============

So I think that the setting client_max_body_size should be OK.

Regards