Django and uwsgi shows 502 on production only for specific URLs

I recently upgraded Django to 1.8 and Celery to 4.1.1. After the upgrade, I am getting 502 error on server for only one url.

I am using uwsgi. Here is some of the code. The URL I am getting problem with is judging/

uwsgi

judging/

urlpatterns = patterns('lbb.views',
url(r'^judging/', include('judging.urls')),
)


urls.py in judging app

urlpatterns = patterns('judging.views',
url(r'^$', AppView.as_view(), name='judge_home')
)


the view is

class AppView(TemplateView):
template_name = 'judging/app.html'

def get(self, request, *args, **kwargs):
""" method get of class JudgeLoginView """
if not request.user.is_authenticated():
url="%s?next=%s" % (reverse("judge_login"), '/judging/#/judge_home')
return redirect(url)
return super(AppView, self).get(self, request, *args, **kwargs)


It use to run normally. But after the upgrade I getting this problem. The nginx file is

upstream application {
server lbb-app:8000;
}


server {
listen 80 default_server;

charset utf-8;

client_max_body_size 4G; # adjust to taste
server_tokens off;

add_header X-Content-Type-Options nosniff;

add_header X-XSS-Protection "1; mode=block";

add_header Cache-Control "no-store";

add_header Pragma "no-cache";

add_header Strict-Transport-Security "max-age=31536000; includeSubdomains;";


location /work {
include uwsgi_params;
uwsgi_pass application;
}


location / {
include uwsgi_params;
uwsgi_pass application;
}
}


The uwsgu.ini is

[uwsgi]
env=DJANGO_SETTINGS_MODULE=lbb.settings.common
chdir=/opt/webapp
module=lbb.wsgi:application
reload-mercy=10
master=1
no-orphans=1
workers=4
enable-threads=1
single-interpreter=1
socket=:8000
harakiri=20
max-requests=5000
vacuum=1
buffer-size = 65535


I made some changes in nginx config and deployed couple of times. But changed back to old one and redeployed. Every other URL works fine. Except the one I mentioned https://website/judging/. I tried commenting some unnecessary code. But it still doesn't work.

https://website/judging/

get()

url(r'^judging/$', include('judging.urls'))

/

1 Answer
1

I think there is the problem:

urlpatterns = patterns('judging.views',
url(r'^$', AppView.as_view(), name='judge_home')
)


You should delete $ or ^ sign from url pattern.

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