This repository has been archived by the owner on Jul 9, 2019. It is now read-only.
jupyterlab-hub include page_config.json check and provide help finding JupyterHub #91
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Hi @NumesSanguis, the [1] https://github.com/jupyterlab/jupyterlab/blob/master/jupyterlab/labhubapp.py#L25 cf jupyterlab/jupyterlab#6428, where we're absorbing this extension into JupyterLab itself. |
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Describe the bug
After installing jupyterlab-hub, trying to set
page_config.json, removing it, JupyterHub returns a404 : Not Found. Terminal output states ajson.decoder.JSONDecodeError: Expecting ',' delimiter: line 2 column 38 (char 39)--> Realize JSON is wrongly formatted, because comments not allowed just before posting issue
--> Still don't know correct path to JupyterHub
To Reproduce
Steps to reproduce the behavior:
Note:
/opt/miniconda3(system user account) with:conda install -c conda-forge jupyterhubconda install jupyterlab/etc/jupyterhub/jupyter labextension install @jupyterlab/hub-extensionpage_config.jsonfile at:/opt/miniconda3/share/jupyter/lab/settings/page_config.jsoncd /etc/jupyterhub jupyterhub -f /etc/jupyterhub/jupyterhub_config.py --JupyterHub.spawner_class=sudospawner.SudoSpawnerrm /opt/miniconda3/share/jupyter/lab/settings/page_config.json/opt/miniconda3/share/jupyter/lab/settings/page_config.jsonagain, but with{ "hub_prefix": "/etc" # path to JupyterHub }json.decoder.JSONDecodeError: Expecting ',' delimiter: line 2 column 38 (char 39)page_config.jsonand it works again.# commentsare not allowed./etc/etc/jupyterhub/opt/miniconda3/bin/jupyterExpected behavior
page_config.jsonis broken. Instead it breaks the whole JupyterHub.hub_prefixis incorrectly set and jupyterlab-hub won't work.Suggestions
README.mdto give clearer instructions. E.g. how to find your JupyterHub sub-directory.page_config.jsoncreation with the correct path set / support for how to set it, when clicked onHub --> Controlpanelwhen JupyterHub cannot be foundScreenshots
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Troubleshoot Output
Command Line Output
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[I 190531 10:46:50 mediator:89] Spawning /opt/miniconda3/bin/jupyterhub-singleuser --port=45747 --NotebookApp.default_url=/lab
[I 2019-05-31 10:46:51.014 JupyterHub log:174] 302 GET /hub/spawn -> /hub/spawn-pending/user (user@127.0.0.1) 1007.01ms
[I 2019-05-31 10:46:51.051 JupyterHub pages:303] user is pending spawn
[I 2019-05-31 10:46:51.071 JupyterHub log:174] 200 GET /hub/spawn-pending/user (user@127.0.0.1) 26.98ms
[W 2019-05-31 10:46:51.317 SingleUserNotebookApp notebookapp:1580] Error loading server extension jupyterlab
Traceback (most recent call last):
File "/opt/miniconda3/lib/python3.7/site-packages/notebook/notebookapp.py", line 1575, in init_server_extensions
func(self)
File "/opt/miniconda3/lib/python3.7/site-packages/jupyterlab/extension.py", line 115, in load_jupyter_server_extension
config = load_config(nbapp)
File "/opt/miniconda3/lib/python3.7/site-packages/jupyterlab/extension.py", line 41, in load_config
info = get_app_info(app_dir)
File "/opt/miniconda3/lib/python3.7/site-packages/jupyterlab/commands.py", line 280, in get_app_info
handler = _AppHandler(app_dir, logger)
File "/opt/miniconda3/lib/python3.7/site-packages/jupyterlab/commands.py", line 386, in init
self.info = self._get_app_info()
File "/opt/miniconda3/lib/python3.7/site-packages/jupyterlab/commands.py", line 810, in _get_app_info
page_config = self._read_page_config()
File "/opt/miniconda3/lib/python3.7/site-packages/jupyterlab/commands.py", line 1215, in _read_page_config
return json.load(fid)
File "/opt/miniconda3/lib/python3.7/json/init.py", line 296, in load
parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
File "/opt/miniconda3/lib/python3.7/json/init.py", line 348, in loads
return _default_decoder.decode(s)
File "/opt/miniconda3/lib/python3.7/json/decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/opt/miniconda3/lib/python3.7/json/decoder.py", line 353, in raw_decode
obj, end = self.scan_once(s, idx)
json.decoder.JSONDecodeError: Expecting ',' delimiter: line 2 column 38 (char 39)
[I 2019-05-31 10:46:51.318 SingleUserNotebookApp singleuser:561] Starting jupyterhub-singleuser server version 1.0.0
[I 2019-05-31 10:46:51.321 JupyterHub log:174] 200 GET /hub/api (@127.0.0.1) 0.64ms
[I 2019-05-31 10:46:51.321 SingleUserNotebookApp notebookapp:1774] Serving notebooks from local directory: /home/user
[I 2019-05-31 10:46:51.321 SingleUserNotebookApp notebookapp:1774] The Jupyter Notebook is running at:
[I 2019-05-31 10:46:51.321 SingleUserNotebookApp notebookapp:1774] http://127.0.0.1:45747/user/*user*/
[I 2019-05-31 10:46:51.321 SingleUserNotebookApp notebookapp:1775] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[I 2019-05-31 10:46:51.324 SingleUserNotebookApp singleuser:542] Updating Hub with activity every 300 seconds
[I 2019-05-31 10:46:51.339 JupyterHub log:174] 200 POST /hub/api/users/user/activity (user@127.0.0.1) 13.84ms
[I 2019-05-31 10:46:51.347 JupyterHub base:810] User user took 1.334 seconds to start
[I 2019-05-31 10:46:51.347 JupyterHub proxy:261] Adding user user to proxy /user/user/ => http://127.0.0.1:45747
[I 2019-05-31 10:46:51.347 SingleUserNotebookApp log:174] 302 GET /user/user/ -> /user/user/lab? (@127.0.0.1) 0.57ms
[I 2019-05-31 10:46:51.349 JupyterHub users:606] Server user is ready
[I 2019-05-31 10:46:51.349 JupyterHub log:174] 200 GET /hub/api/users/user/server/progress (user@127.0.0.1) 123.51ms
[I 2019-05-31 10:46:51.392 JupyterHub log:174] 302 GET /hub/spawn-pending/user -> /user/user/ (user@127.0.0.1) 5.82ms
[I 2019-05-31 10:46:51.434 SingleUserNotebookApp log:174] 302 GET /user/user/ -> /user/user/lab? (@127.0.0.1) 0.50ms
[W 2019-05-31 10:46:51.489 SingleUserNotebookApp log:174] 404 GET /user/user/lab? (@127.0.0.1) 23.03ms
Browser Output
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