Hey guys,
i searched more than a week for solution but didn’t find one. So my problem is that my tljh works fine but the only thing that doesn’t work is if i want to shutdown the hub via admin panel this message pops up: “API request failed (500): Internal Server Error”.
But everything else works fine.
Did anybody find a solution for this problem?
Do you see anything in the Hub logs? There should be a traceback there pointing to the real issue.
Sorry for my late answer.
Where is the file with logs located?
Hi,
I’ve copied the log part now and I’ve replaced the specific url with ‘myurl’ for easier readability.
[E 2019-06-11 13:23:26.521 JupyterHub web:1788] Uncaught exception POST /hub/api/shutdown (myip)
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: HTTPServerRequest(protocol='http', host='myurl:1600', metho
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: Traceback (most recent call last):
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: File "/opt/tljh/hub/lib/python3.6/site-packages/tornado/web.py", line 1697, in _execute
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: result = method(*self.path_args, **self.path_kwargs)
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: File "/opt/tljh/hub/lib/python3.6/site-packages/jupyterhub/utils.py", line 212, in decorated
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: return method(self, *args, **kwargs)
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: File "/opt/tljh/hub/lib/python3.6/site-packages/jupyterhub/apihandlers/hub.py", line 29, in post
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: app = JupyterHub.instance()
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: File "/opt/tljh/hub/lib/python3.6/site-packages/traitlets/config/configurable.py", line 423, in instance
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: '%s are being created.' % cls.__name__
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: traitlets.config.configurable.MultipleInstanceError: Multiple incompatible subclass instances of JupyterHu
Jun 11 13:23:26 ip-172-31-24-199 python3[804]:
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: [E 2019-06-11 13:23:26.524 JupyterHub log:150] {
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "Host": "myurl:1600",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/7
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "Content-Length": "29",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "Accept": "application/json, text/javascript, */*; q=0.01",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "Accept-Encoding": "gzip, deflate",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "Accept-Language": "de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "Content-Type": "application/json",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "Cookie": "...",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "Origin": "myurl:1600",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "Referer": "myurl:1600/hub/admin",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "X-Forwarded-For": "myip",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "X-Forwarded-Host": myurl:1600",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "X-Forwarded-Port": "1600",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "X-Forwarded-Proto": "http",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "X-Forwarded-Server": "myip",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "X-Real-Ip": "myip",
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: "X-Requested-With": "XMLHttpRequest"
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: }
Jun 11 13:23:26 ip-172-31-24-199 python3[804]: [E 2019-06-11 13:23:26.525 JupyterHub log:158] 500 POST /hub/api/shutdown (ubuntu@myip) 17.80ms
Hello, could I ask if you ended up finding a solution to this problem? My Hub (using Z2JH) is encountering a similar error where if a user tries to stop a server or generate an API token themselves, it leads to an API request 404 error. However, stopping servers through the admin panel does seem to work.