CentOS Question posted in
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Other users on server not able to open JupyterHub – CentOS

I have spent a lot of time trying out the few solutions I found online to solve this. Nothing worked. 

Install Location:
  anaconda : /opt/anaconda

Run JupyterHub
  $ cd /opt/anaconda/  <--  I have my jupyter_config.py here
  $ jupyterhub --Spawner.cmd="/opt/anaconda/bin/jupyterhub_singleuser"

First I got this –

[W JupyterHub auth:956] Failed to open PAM session for user1: [PAM Error 14] Cannot make/remove an entry for the specified session
[W JupyterHub auth:957] Disabling PAM sessions from now on.
[I JupyterHub spawner:1417] Spawning /opt/anaconda/bin/jupyterhub_singleuser --port=27699
Failed to set groups [Errno 1] Operation not permitted
[E JupyterHub user:640] Unhandled error starting user1's server: Exception occurred in preexec_fn.

So, I updated my config with this –

c.PAMAuthenticator.open_sessions = False

The first error disappeared but I still get this –

Spawning /opt/anaconda/bin/jupyterhub_singleuser --port=62001
Failed to set groups [Errno 1] Operation not permitted
[E JupyterHub user:640] Unhandled error starting user1's server: Exception occurred in preexec_fn.
[W JupyterHub web:1782] 500 GET /hub/spawn (::ffff:10.2.139.158): Error in Authenticator.pre_spawn_start: SubprocessError Exception occurred in preexec_fn.

Any help will be appreciated.

Tags:

2

Answers


  1. 0

    Try this:

    Create a group:

    $ sudo groupadd <groupname>

    Add a user to a group:

    $ sudo adduser <username> <groupname>

    Check group members:

    $ sudo apt install members -y
$ members <groupname>

    [jupyterhub_config.py]

    c.LocalAuthenticator.group_whitelist = ['<groupname>']

    I leave you my github with a tutorial:
    Gitub/Jupyter

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  2. 0

    I believe you are running the JupyterHub process as a normal user while for multiple user setups you need it to run as superuser.

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