Frequent authentication issue: RemoteDisconnected

[appukuttan-shailesh]

The following error comes up very frequently (I think it is every time a new token is freshly issued):
(this issue has existed for some months now....)

e.g.

mc = ModelCatalog(HBP_USERNAME)
model_data = mc.get_model(.......) <- ERROR

The error disappears on re-running the same cell without any changes.

Error:

RemoteDisconnected Traceback (most recent call last)
~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/connectionpool.py in urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw)
676 headers=headers,
--> 677 chunked=chunked,
678 )

~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/connectionpool.py in _make_request(self, conn, method, url, timeout, chunked, **httplib_request_kw)
425 # Otherwise it looks like a bug in the code.
--> 426 six.raise_from(e, None)
427 except (SocketTimeout, BaseSSLError, SocketError) as e:

~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/packages/six.py in raise_from(value, from_value)

~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/connectionpool.py in _make_request(self, conn, method, url, timeout, chunked, **httplib_request_kw)
420 try:
--> 421 httplib_response = conn.getresponse()
422 except BaseException as e:

/usr/lib/python3.6/http/client.py in getresponse(self)
1372 try:
-> 1373 response.begin()
1374 except ConnectionError:

/usr/lib/python3.6/http/client.py in begin(self)
310 while True:
--> 311 version, status, reason = self._read_status()
312 if status != CONTINUE:

/usr/lib/python3.6/http/client.py in _read_status(self)
279 # sending a valid response.
--> 280 raise RemoteDisconnected("Remote end closed connection without"
281 " response")

RemoteDisconnected: Remote end closed connection without response

During handling of the above exception, another exception occurred:

ProtocolError Traceback (most recent call last)
~/.virtualenvs/py3env/lib/python3.6/site-packages/requests/adapters.py in send(self, request, stream, timeout, verify, cert, proxies)
448 retries=self.max_retries,
--> 449 timeout=timeout
450 )

~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/connectionpool.py in urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw)
724 retries = retries.increment(
--> 725 method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
726 )

~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/util/retry.py in increment(self, method, url, response, error, _pool, _stacktrace)
402 if read is False or not self._is_method_retryable(method):
--> 403 raise six.reraise(type(error), error, _stacktrace)
404 elif read is not None:

~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/packages/six.py in reraise(tp, value, tb)
733 if value.traceback is not tb:
--> 734 raise value.with_traceback(tb)
735 raise value

~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/connectionpool.py in urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw)
676 headers=headers,
--> 677 chunked=chunked,
678 )

~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/connectionpool.py in _make_request(self, conn, method, url, timeout, chunked, **httplib_request_kw)
425 # Otherwise it looks like a bug in the code.
--> 426 six.raise_from(e, None)
427 except (SocketTimeout, BaseSSLError, SocketError) as e:

~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/packages/six.py in raise_from(value, from_value)

~/.virtualenvs/py3env/lib/python3.6/site-packages/urllib3/connectionpool.py in _make_request(self, conn, method, url, timeout, chunked, **httplib_request_kw)
420 try:
--> 421 httplib_response = conn.getresponse()
422 except BaseException as e:

/usr/lib/python3.6/http/client.py in getresponse(self)
1372 try:
-> 1373 response.begin()
1374 except ConnectionError:

/usr/lib/python3.6/http/client.py in begin(self)
310 while True:
--> 311 version, status, reason = self._read_status()
312 if status != CONTINUE:

/usr/lib/python3.6/http/client.py in _read_status(self)
279 # sending a valid response.
--> 280 raise RemoteDisconnected("Remote end closed connection without"
281 " response")

ProtocolError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))

During handling of the above exception, another exception occurred:

ConnectionError Traceback (most recent call last)
in
----> 1 model_data = mc.get_model(alias=model_alias)

~/.virtualenvs/py3env/lib/python3.6/site-packages/hbp_validation_framework/init.py in get_model(self, model_id, alias, instances, images)
1580 url = self.url + "/models/" + quote(alias)
1581
-> 1582 model_json = requests.get(url, auth=self.auth, verify=self.verify)
1583 if model_json.status_code != 200:
1584 handle_response_error("Error in retrieving model", model_json)

~/.virtualenvs/py3env/lib/python3.6/site-packages/requests/api.py in get(url, params, **kwargs)
74
75 kwargs.setdefault('allow_redirects', True)
---> 76 return request('get', url, params=params, **kwargs)
77
78

~/.virtualenvs/py3env/lib/python3.6/site-packages/requests/api.py in request(method, url, **kwargs)
59 # cases, and look like a memory leak in others.
60 with sessions.Session() as session:
---> 61 return session.request(method=method, url=url, **kwargs)
62
63

~/.virtualenvs/py3env/lib/python3.6/site-packages/requests/sessions.py in request(self, method, url, params, data, headers, cookies, files, auth, timeout, allow_redirects, proxies, hooks, stream, verify, cert, json)
528 }
529 send_kwargs.update(settings)
--> 530 resp = self.send(prep, **send_kwargs)
531
532 return resp

~/.virtualenvs/py3env/lib/python3.6/site-packages/requests/sessions.py in send(self, request, **kwargs)
641
642 # Send the request
--> 643 r = adapter.send(request, **kwargs)
644
645 # Total elapsed time of the request (approximately)

~/.virtualenvs/py3env/lib/python3.6/site-packages/requests/adapters.py in send(self, request, stream, timeout, verify, cert, proxies)
496
497 except (ProtocolError, socket.error) as err:
--> 498 raise ConnectionError(err, request=request)
499
500 except MaxRetryError as e:

ConnectionError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))

[appukuttan-shailesh]

@apdavison : this issue still persists, and is particularly problematic when trying to run scripts on HPCs (owing to lack of scope for manual intervention).