[Python] django errno 104 Connection reset by peer

I am trying to run my django server on an Ubuntu instance on AWS EC2. I am using gunicorn to run the server like this :

gunicorn --workers 4 --bind 127.0.0.1:8000 woc.wsgi:application --name woc-server --log-level=info --worker-class=tornado --timeout=90 --graceful-timeout=10

When I make a request I am getting 502, Bad Gateway on the browser. Here is the server log http://pastebin.com/Ej5KWrWs

Some sections of the settings.py file where behaviour is changed based on hostname are

iUbuntu is the hostname of my laptop

if socket.gethostname() == 'iUbuntu':
'''
Development mode
"iUbuntu" is the hostname of Ishan's PC
'''
DEBUG = TEMPLATE_DEBUG = True
else:
'''
Production mode
Anywhere else than Ishan's PC is considered as production
'''
DEBUG = TEMPLATE_DEBUG = False

if socket.gethostname() == 'iUbuntu':
'''Development'''
ALLOWED_HOSTS = ['*', ]
else:
'''Production Won't let anyone pretend as us'''
ALLOWED_HOSTS = ['domain.com', 'www.domain.com',
'api.domain.com', 'analytics.domain.com',
'ops.domain.com', 'localhost', '127.0.0.1']


(I don't get what's the purpose of this section of the code. Since I inherited the code from someone and the server was working I didn't bothered removing it without understanding what it does)

if socket.gethostname() == 'iUbuntu':
MAIN_SERVER = 'http://localhost'
else:
MAIN_SERVER = 'http://domain.com'


I can't figure out what's the problem here. The same code runs fine with gunicorn on my laptop.

I have also made a small hello world node.js to serve on the port 8000 to test nginx configuration and it is running fine. So no nginx errors.

UPDATE:

I set DEBUG to True and copied the Traceback http://pastebin.com/ggFuCmYW

UPDATE:

Thanks to the reply by @ARJMP. This indeed is the problem with celery consumer not getting connected to broker.

I am configuring celery like this : app.config_from_object('woc.celeryconfig') and the contents of celeryconfig.py are:

BROKER_URL = 'amqp://celeryuser:celerypassword@localhost:5672/MyVHost' CELERY_RESULT_BACKEND = 'rpc://'

I am running the worker like this :celery worker -A woc.async -l info --autoreload --include=woc.async -n woc_celery.%h

And the error that I am getting is:

consumer: Cannot connect to amqp://celeryuser:**@127.0.0.1:5672/MyVHost: [Errno 104] Connection reset by peer.

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