Configurações do NGINX atualizadas.

gistfile1.txt

upstream easy_gunicorn {
    server 127.0.0.1:9000;
}

server {
    listen 80;
    server_name localhost 127.0.0.1;
    client_max_body_size 10m;
    access_log  /var/log/nginx/easyproject.access.log;

    location / {

        default_type text/html;

        if ($request_method = POST) {
            proxy_pass http://easy_gunicorn;
            break;
        }

        # monta a chave de consulta ao memcached.
        set $memcached_key "easyproject:$uri";

        memcached_pass localhost:11211;
        proxy_intercept_errors on;

        # se nao existir no cache a requisicao e repassada para o django.
        error_page 404 502 501 = /django$uri;
    }

    location /django {
        proxy_set_header x-forwarded-for $proxy_add_x_forwarded_for;
        proxy_set_header host $http_host;
        proxy_redirect off;
        proxy_pass http://easy_gunicorn;
    }

}