Jupyter Notebook Kernel busy all the time

python jupyter-notebook

15,538

I was also getting the same issue, I tried a lot of different stuff but nothing seemed to help me out. Ultimately, a Kernel Restart instead of Kernel Interrupt helped me out! The kernel restarted and I was able to run the kernels as usual.

I think this is just a workaround if someone finds the real solution please do let us know!

15,538

Dnyanesh Khedekar

Updated on June 04, 2022

Comments

Dnyanesh Khedekar almost 2 years
I have instaled anaconda and python works fine in Sypder , IPython etc . However I am not able to run python notebook.

Kernel gets created , it also connects but it shows the dark circle busy symbol throughout . There is no problem with the firewall or antivirus . I have tried by disabling both .

I am also not able to open python terminal from notebook there is some powershell error.

Can anyone suggest something ?

Edit 1 : Added the snapshot and the log

Log Anaconda Prompt :
```
(base) C:\Users\Project>jupyter notebook
[I 13:11:26.561 NotebookApp] JupyterLab extension loaded from C:\Users\Project\A
naconda3\lib\site-packages\jupyterlab
[I 13:11:26.561 NotebookApp] JupyterLab application directory is C:\Users\Projec
t\Anaconda3\share\jupyter\lab
[I 13:11:26.569 NotebookApp] Serving notebooks from local directory: C:\Users\Pr
oject
[I 13:11:26.570 NotebookApp] The Jupyter Notebook is running at:
[I 13:11:26.570 NotebookApp] http://localhost:8888/?token=28e7406ee648d631648f9b
8c53e1f3027f5eb30516ccf15f
[I 13:11:26.571 NotebookApp] Use Control-C to stop this server and shut down all
 kernels (twice to skip confirmation).
[C 13:11:26.768 NotebookApp]

    To access the notebook, open this file in a browser:
        file:///C:/Users/Project/AppData/Roaming/jupyter/runtime/nbserver-3064-o
pen.html
    Or copy and paste one of these URLs:
        http://localhost:8888/?token=28e7406ee648d631648f9b8c53e1f3027f5eb30516c
cf15f
[I 13:11:56.237 NotebookApp] Creating new notebook in
[I 13:12:02.401 NotebookApp] Kernel started: 55d8fb5e-2fe7-4d4b-a1d3-a11b0b7e7e7
d
[I 13:12:05.242 NotebookApp] Adapting to protocol v5.1 for kernel 55d8fb5e-2fe7-
4d4b-a1d3-a11b0b7e7e7d
```
And the image where kernel is always busy

kernel busy
- Nihal Sangeeth about 5 years
  
  What is your version of ipykernel?
- ohlr about 5 years
  
  did you try executing jupyter in a seperate conda environment?
- ohlr about 5 years
  
  Could you resolve the error?
- Dnyanesh Khedekar about 5 years
  
  @NihalSangeeth its 5.1.0 , I have actually installed anaconda . I also tried 4. versions as welll no help
- Dnyanesh Khedekar about 5 years
  
  @ohlr yes I tried seperate environment also with python version 2.7 as well .
- Dnyanesh Khedekar about 5 years
  
  There is no change the kernel always remains busy irrespective of the browser as well. I have been trying to fix this since three days , almost spend 20 hrs in finding solutions
- Nihal Sangeeth about 5 years
  
  pip install 'ipykernel<5.0.0' . Try this as a temporary workaround.
- Dnyanesh Khedekar about 5 years
  
  As I already told you i tried on older versions , it does not work . However if I follow your exact syntax even then it does not work .
- ohlr about 5 years
  
  Can you provide a log of your terminal output?
- Nihal Sangeeth about 5 years
  
  Is this problem specific to conda? Have you tried a different virtualenv ?
- Dnyanesh Khedekar about 5 years
  
  I tried creating new environment as well ,suceess at all . I dont think the problem is specific to conda as I also tried installing python 3.7 seperate and then installing jupyter notebook , it always keeps kernel busy , however kernel gets connected .
- Dnyanesh Khedekar about 5 years
  
  @ohlr do you mean the the logs in the prompt ?
- Dnyanesh Khedekar about 5 years
  
  interesting thing all other tools are working fine like spyder etc. the problem is specific to jupyter notebook
- ohlr about 5 years
  
  just any logs you have, terminal output etc. - you say something about powershell error - hand us some traces - otherwise it's hard to see what's going on
- Dnyanesh Khedekar about 5 years
  
  @ohlr I have edited the question with the image and the logs nothing seems going wrong to me .. yet the kernel shows busy
- ohlr about 5 years
  
  Do you have anaconda in your bashrc? I.e can you call it without running 'source anaconda/bin/activate'? If so please remove it
- Dnyanesh Khedekar about 5 years
  
  Well I am using windows 7 . Does that still apply ?
- ohlr about 5 years
  
  yes, maybe the commands are different but the idea is the same.. have a look at point 8
- ohlr about 5 years
  
  also you could try to pip install, jupyter within your conda environment.. hoping that it makes a difference
- ohlr about 5 years
  
  and like I said earlyer, don't do stuff in the (base) environment.. instead make a new env for each project.
- anand_v.singh about 5 years
  
  Does it happen when you create a new notebook/ When you open an already existing notebook or both the times? Also is there a ipynb_checkpoints folder created when you open the notebook in a new directory?
- Dnyanesh Khedekar about 5 years
  
  I have tried creating new conda enviroments . no difference. Spyder Ipython shell and other things work perfectly fine . Only problem with jupyter notebook . I am running it in chrome as my IE version is still 8 does that affect by any chance ?