Graphite on uwsgi/nginx

graphite

#This is the "site config" for nginx

upstream django {
    # Distribute requests to servers based on client IP. This keeps load
    # balancing fair but consistent per-client. In this instance we're
    # only using one uWGSI worker anyway.
    ip_hash;
    server unix:/tmp/uwsgi.sock;
}
server {
        listen      8080;
        server_name graphite;
        charset     utf-8;
        # Django admin media.
        location /media/admin/ {
        alias /usr/lib/python2.7/site-packages/django/contrib/admin/media/;
        }

        # Your project's static media.
        location /content/ {
        alias /usr/share/graphite/webapp/content/;
        }

        # Finally, send all non-media requests to the Django server.
        location / {
        uwsgi_pass  django;
        include     uwsgi_params;
        }
}

graphite.ini

#This is the uwsgi configfile

[uwsgi]

vacuum = true
master = true
processes = 8
pidfile = /tmp/uwsgi.pid
socket = /tmp/uwsgi.sock
chmod-socket = 666
gid = www-data
uid = www-data
pythonpath = /usr/share/graphite/webapp
home = /home/drawks/graphite-sb
pymodule-alias = graphite.local_settings=/etc/graphite/local_settings.py
module = wsgi
buffer-size = 65536

wsgi.py

#This is the wsgi target that lives under the webapp subdirectory

import os, sys
os.environ['DJANGO_SETTINGS_MODULE'] = 'graphite.settings'

import django.core.handlers.wsgi

application = django.core.handlers.wsgi.WSGIHandler()

What is the point of https://gist.github.com/drawks/1830579#file-graphite-L7 when you are using 1 server? To be honest what is the point to have upstream at all?