This happens sometimes with a visualization that has just been launched:
2017-09-27 08:55:32 ERROR django.request:231 handle_uncaught_exception() - Internal Server Error: /
Traceback (most recent call last):
File "/home/ubuntu/.virtualenvs/refinery-platform/lib/python2.7/site-packages/django/core/handlers/base.py", line 111, in get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/ubuntu/.virtualenvs/refinery-platform/lib/python2.7/site-packages/django_docker_engine/proxy.py", line 68, in _proxy_view
return view(request, url=url)
File "/home/ubuntu/.virtualenvs/refinery-platform/lib/python2.7/site-packages/django/views/generic/base.py", line 69, in view
return self.dispatch(request, *args, **kwargs)
File "/home/ubuntu/.virtualenvs/refinery-platform/lib/python2.7/site-packages/httpproxy/views.py", line 82, in dispatch
response = super(HttpProxy, self).dispatch(request, *args, **kwargs)
File "/home/ubuntu/.virtualenvs/refinery-platform/lib/python2.7/site-packages/django/views/generic/base.py", line 87, in dispatch
return handler(request, *args, **kwargs)
File "/home/ubuntu/.virtualenvs/refinery-platform/lib/python2.7/site-packages/httpproxy/views.py", line 141, in get
return self.get_response()
File "/home/ubuntu/.virtualenvs/refinery-platform/lib/python2.7/site-packages/httpproxy/views.py", line 166, in get_response
response = urllib.request.urlopen(request)
File "/usr/lib/python2.7/urllib2.py", line 127, in urlopen
return _opener.open(url, data, timeout)
File "/usr/lib/python2.7/urllib2.py", line 404, in open
response = self._open(req, data)
File "/usr/lib/python2.7/urllib2.py", line 422, in _open
'_open', req)
File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain
result = func(*args)
File "/usr/lib/python2.7/urllib2.py", line 1214, in http_open
return self.do_open(httplib.HTTPConnection, req)
File "/usr/lib/python2.7/urllib2.py", line 1187, in do_open
r = h.getresponse(buffering=True)
File "/usr/lib/python2.7/httplib.py", line 1089, in getresponse
response.begin()
File "/usr/lib/python2.7/httplib.py", line 444, in begin
version, status, reason = self._read_status()
File "/usr/lib/python2.7/httplib.py", line 400, in _read_status
line = self.fp.readline(_MAXLINE + 1)
File "/usr/lib/python2.7/socket.py", line 476, in readline
data = self._sock.recv(self._rbufsize)
This happens sometimes with a visualization that has just been launched: