500 : Internal Server Error

and I can’t figure out what is causing it. This is what I get in the logs:

[I 2015-06-08 06:37:31.845 JupyterHub log:100] 302 GET /user/nicolas (@192.168.0.114) 1.10ms
[E 2015-06-08 06:37:31.859 JupyterHub web:1496] Uncaught exception GET /hub/user/nicolas (192.168.0.114)
    HTTPServerRequest(protocol='http', host='qucitserver:8000', method='GET', uri='/hub/user/nicolas', version='HTTP/1.1', remote_ip='192.168.0.114', headers={'Host': 'qucitserver:8000', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8', 'X-Forwarded-Port': '8000', 'Cookie': 'jupyter-hub-token="2|1:0|10:1433513499|17:jupyter-hub-token|44:MzI3YmNjODNmYTM3NDFmODk3N2Y5ZjJlMmQ5YjkwNGU=|bfaa7de51740b5d383ed9cb7e40f3dcf3204c62b35a3361d37e6664c23baf68a"', 'Connection': 'close', 'X-Forwarded-Proto': 'http', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/41.0.2272.76 Chrome/41.0.2272.76 Safari/537.36', 'X-Forwarded-For': '192.168.0.114', 'Accept-Encoding': 'gzip, deflate, sdch', 'Accept-Language': 'en-US,en;q=0.8,fr;q=0.6,it;q=0.4'})
    Traceback (most recent call last):
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/tornado/web.py", line 1415, in _execute
        result = yield result
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/jupyterhub/handlers/base.py", line 416, in get
        status = yield current_user.spawner.poll()
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/dockerspawner/dockerspawner.py", line 219, in poll
        container = yield self.get_container()
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/dockerspawner/dockerspawner.py", line 245, in get_container
        'inspect_container', self.container_name
      File "/usr/lib/python3.4/concurrent/futures/_base.py", line 395, in result
        return self.__get_result()
      File "/usr/lib/python3.4/concurrent/futures/_base.py", line 354, in __get_result
        raise self._exception
      File "/usr/lib/python3.4/concurrent/futures/thread.py", line 54, in run
        result = self.fn(*self.args, **self.kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/dockerspawner/dockerspawner.py", line 207, in _docker
        return m(*args, **kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/docker/utils/decorators.py", line 15, in wrapped
        return f(self, resource_id, *args, **kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/docker/client.py", line 745, in inspect_container
        self._get(self._url("/containers/{0}/json".format(container))),
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/docker/client.py", line 106, in _get
        return self.get(url, **self._set_request_timeout(kwargs))
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/requests/sessions.py", line 477, in get
        return self.request('GET', url, **kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/requests/sessions.py", line 465, in request
        resp = self.send(prep, **send_kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/requests/sessions.py", line 573, in send
        r = adapter.send(request, **kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/requests/adapters.py", line 415, in send
        raise ConnectionError(err, request=request)
    requests.exceptions.ConnectionError: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

Beside, after that I needed to delete my ~/.ipython/profile_default, otherwise I would get

[E 2015-06-08 06:32:09.094 JupyterHub orm:376] Unhandled error starting nicolas's server: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))
[E 2015-06-08 06:32:09.096 JupyterHub orm:384] Failed to cleanup nicolas's server that failed to start
    Traceback (most recent call last):
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/jupyterhub/orm.py", line 380, in spawn
        yield self.stop()
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/jupyterhub/orm.py", line 434, in stop
        status = yield self.spawner.poll()
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/dockerspawner/dockerspawner.py", line 219, in poll
        container = yield self.get_container()
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/dockerspawner/dockerspawner.py", line 245, in get_container
        'inspect_container', self.container_name
      File "/usr/lib/python3.4/concurrent/futures/_base.py", line 395, in result
        return self.__get_result()
      File "/usr/lib/python3.4/concurrent/futures/_base.py", line 354, in __get_result
        raise self._exception
      File "/usr/lib/python3.4/concurrent/futures/thread.py", line 54, in run
        result = self.fn(*self.args, **self.kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/dockerspawner/dockerspawner.py", line 207, in _docker
        return m(*args, **kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/docker/utils/decorators.py", line 15, in wrapped
        return f(self, resource_id, *args, **kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/docker/client.py", line 745, in inspect_container
        self._get(self._url("/containers/{0}/json".format(container))),
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/docker/client.py", line 106, in _get
        return self.get(url, **self._set_request_timeout(kwargs))
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/requests/sessions.py", line 477, in get
        return self.request('GET', url, **kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/requests/sessions.py", line 465, in request
        resp = self.send(prep, **send_kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/requests/sessions.py", line 573, in send
        r = adapter.send(request, **kwargs)
      File "/opt/jupyterhub/env3/lib/python3.4/site-packages/requests/adapters.py", line 415, in send
        raise ConnectionError(err, request=request)
    requests.exceptions.ConnectionError: ('Connection aborted.', FileNotFoundError(2, 'No such file or directory'))

It’s a cool project, by the way! 😃

[martijnthe]

I had the same issue.

I guess you’re running the jupyterhub in a docker container itself, correct? I solved this by adding -v /var/run/docker.sock:/var/run/docker.sock to the docker run invocation of the jupyterhub container. This links the socket file of the docker server into the docker container itself, so it can talk to the server through it.

I doubt whether their setup is running jupyterhub in a docker container…

[anumvarghese]

@willingc Can you please look this I am creating conda virtual env on openshft and running jupyterhub and getting following error on docker spwaner. Request to check and help to resolve

[E 2020-04-23 16:53:07.919 JupyterHub user:626] Unhandled error starting anu server: Error while fetching server API version: (‘Connection aborted.’, FileNotFoundError(2, ‘No such file or directory’))

| [D 2020-04-23 16:53:07.920 JupyterHub user:724] Stopping anu   | [D 2020-04-23 16:53:07.920 JupyterHub dockerspawner:777] Getting container ‘jupyter-anu’   | [E 2020-04-23 16:53:07.932 JupyterHub user:638] Failed to cleanup anu’s server that failed to start   | Traceback (most recent call last):   | File “/opt/app-root/conda-base/lib/python3.6/site-packages/jupyterhub/user.py”, line 632, in spawn   | await self.stop(spawner.name)   | File “/opt/app-root/conda-base/lib/python3.6/site-packages/jupyterhub/user.py”, line 728, in stop   | status = await spawner.poll()   | File “/opt/app-root/conda-base/lib/python3.6/site-packages/dockerspawner/dockerspawner.py”, line 755, in poll   | container = yield self.get_object()   | File “/opt/app-root/conda-base/lib/python3.6/site-packages/dockerspawner/dockerspawner.py”, line 779, in get_object   | obj = yield self.docker(“inspect_%s” % self.object_type, self.object_name)   | File “/opt/app-root/conda-base/lib/python3.6/concurrent/futures/_base.py”, line 425, in result   | return self.__get_result()   | File “/opt/app-root/conda-base/lib/python3.6/concurrent/futures/_base.py”, line 384, in __get_result   | raise self._exception   | File “/opt/app-root/conda-base/lib/python3.6/concurrent/futures/thread.py”, line 56, in run   | result = self.fn(*self.args, **self.kwargs)   | File “/opt/app-root/conda-base/lib/python3.6/site-packages/dockerspawner/dockerspawner.py”, line 742, in _docker   | m = getattr(self.client, method)   | File “/opt/app-root/conda-base/lib/python3.6/site-packages/dockerspawner/dockerspawner.py”, line 79, in client   | client = docker.APIClient(**kwargs)   | File “/opt/app-root/conda-base/lib/python3.6/site-packages/docker/api/client.py”, line 190, in init   | self._version = self._retrieve_server_version()   | File “/opt/app-root/conda-base/lib/python3.6/site-packages/docker/api/client.py”, line 215, in _retrieve_server_version   | ‘Error while fetching server API version: {0}’.format(e)   | docker.errors.DockerException: Error while fetching server API version: (‘Connection aborted.’, FileNotFoundError(2, ‘No such file or directory’))