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Processes remain after quitting JuputerLab Desktop app on Mac

See original GitHub issue


On MacOS 11.6.3 (Big Sur), when I use JupyterLab Destkop and exit the application, I see there are still some processes running:

One is of the type: python -m jupyterlab --no-browser --LabServerApp.schemas_dir=/Applications/ --JupyterApp.config_file_name= --ServerApp.port=50583 --ServerApp.password= --ServerApp.allow_origin=* --ContentsManager.allow_hidden=True

and each of these has multiple processes of the form /Users/ivan/Library/jupyterlab-desktop/jlab_server/bin/python -m ipykernel_launcher -f /Users/ivan/Library/Jupyter/runtime/kernel-<SOMEUUID>.json

Screen Shot 2022-06-29 at 1 28 18 AM Screen Shot 2022-06-29 at 1 26 15 AM


Will try to reproduce from clean slate next time (laptop has been running for a few days so not sure what exactly could be the cause).

One thing I have been running is Django runserve from inside a notebook using !./ runserver which kind of “blocks” that notebook until I press STOP button, but maybe I quit the app without stopping?

Expected behavior

No more processes after quitting app.


  • Operating System and version: Mac 11.6.3
  • JupyterLab-Desktop version: Version 3.3.4-2
  • Installer: .dmg

Issue Analytics

  • State:closed
  • Created a year ago
  • Comments:6 (1 by maintainers)

github_iconTop GitHub Comments

tuanpham96commented, Dec 10, 2022

Just updated and briefly tested (nothing showed up when doing ps aux | grep -i '[j]upyter' after closing), also worked on Ubuntu 20.04. Thanks for fixing this!

ivanistheonecommented, Dec 10, 2022

I can confirm latest JupyterLab Desktop exists cleanly. (installed via the .dmg installed from

I only did limited testing: I opened, closed, then ran pstree and don’t see any jupyter processes running.

If @tuanpham96 can confirm on linux too, I guess we could close this after.

Thanks to all involved in fixing this!

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