Jupyter process still running after close the notebook file

[PolarisRisingWar]

I can directly use ipynb file to run jupyter code. But after I closed the file, the processes about jupyter are still running in the background (by using command line ps -aux | grep jupyter I can find a lot of them.
Is that a normal situation? Or I missed some bugs?

[DonJayamanne]

Is that a normal situation? Or I missed some bugs?

unfortunately this is a bug.
please could you

• Send a list of the process that are left running.
• shut down so the processes, opens s notebook and run a cell
• close the notebook and check if any processes are still running and provide that list again

[PolarisRisingWar]

1. I closed all the notebook files in VSCode editor.
2. By running ps -aux | grep jupyter, I listed all my processes (coz this remote server has more than one user) about notebook, and killed one of them, and it showed this message:

3. I reopened a notebook file, and I can normally run codes.
4. I killed all of them, and at once it showed similar messages again.
5. I closed all the notebook files, and reopened a notebook file, and I can't directly run codes. And I restarted the kernel, and I can run the code. Then I saved and closed the file. And again, I found the process is still here, and then I manully kill this process, again, it showed me this message:

[DonJayamanne]

thanks, im after a screenshot of the running processes.
please let ps -aux | grep jupyter

please note, Jupyter will be shut down only when you close vscode.

[PolarisRisingWar]

How about remote server? I'm using remote server and I could see those jupyter processes with the time before I've closed remote connections in the past. Even after I closed remote connections, the jupyter server seems still running in the background.

[DonJayamanne]

we never shut down remote kernels nor the server.
just like jupter itself, if you open a notebook and start a kernel you'll need to shut it down manually. we try to preserve that behavior with remote kernels

[PolarisRisingWar]

It seems like just closing the file, the server is still running?