ConnectionError in refresh_tests

[johnsca]

From error emails:

Task reviewqueue.tasks.refresh_review with id 4d270afa-e064-46c0-bfee-f7be15644b1f raised exception:
"ConnectionError(ProtocolError('Connection aborted.', error(104, 'Connection reset by peer')),)"

Task was called with args: (<reviewqueue.models.review.Review object at 0x7ff80d3bd7d0>,) kwargs: {}.

The contents of the full traceback was:

Traceback (most recent call last):
  File "/opt/reviewqueue/.venv/local/lib/python2.7/site-packages/celery/app/trace.py", line 240, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/opt/reviewqueue/.venv/local/lib/python2.7/site-packages/celery/app/trace.py", line 438, in __protected_call__
    return self.run(*args, **kwargs)
  File "/opt/reviewqueue/reviewqueue/tasks.py", line 31, in refresh_review
    review.refresh_tests(celery.settings)
  File "/opt/reviewqueue/reviewqueue/models/review.py", line 151, in refresh_tests
    r.refresh_tests(settings)
  File "/opt/reviewqueue/reviewqueue/models/other.py", line 224, in refresh_tests
    t.send_ci_request(settings)
  File "/opt/reviewqueue/reviewqueue/models/other.py", line 95, in send_ci_request
    r = requests.get(req_url, params=req_params)
  File "/opt/reviewqueue/.venv/local/lib/python2.7/site-packages/requests/api.py", line 68, in get
    return request('get', url, **kwargs)
  File "/opt/reviewqueue/.venv/local/lib/python2.7/site-packages/requests/api.py", line 50, in request
    response = session.request(method=method, url=url, **kwargs)
  File "/opt/reviewqueue/.venv/local/lib/python2.7/site-packages/requests/sessions.py", line 464, in request
    resp = self.send(prep, **send_kwargs)
  File "/opt/reviewqueue/.venv/local/lib/python2.7/site-packages/requests/sessions.py", line 576, in send
    r = adapter.send(request, **kwargs)
  File "/opt/reviewqueue/.venv/local/lib/python2.7/site-packages/requests/adapters.py", line 415, in send
    raise ConnectionError(err, request=request)
ConnectionError: ('Connection aborted.', error(104, 'Connection reset by peer'))