Notebook kernel list: not showing kernels in kernelspec for new notebooks

[sadukie]

Issue Type: Bug

Problem

When creating a new notebook in Azure Data Studio, the kernels list seems hard-coded rather than pulling from the Jupyter kernelspec list.

Reproduction Steps

1. Have more than just the default kernels installed in the Jupyter kernelspec.

• I blogged about getting the R kernel installed here: Data Adventurer: Getting an R Jupyter Kernel in Azure Data Studio

2. Have Jupyter installed. (I already had this installed because I wasn't seeing anything in the Settings for Jupyter within Azure Data Studio.)
3. Check the Jupyter kernelspec to ensure other kernels are installed by running this in the terminal:
   jupyter kernelspec list
4. Open Azure Data Studio.
5. Create a new notebook via the File menu, New Notebook option.
6. Check the Kernel dropdown and notice it is the default list - SQL, PySpark, Spark | Scala, Spark | R, Python 3, and PowerShell.
   Not all kernels in the Jupyter kernelspec list appear.

System Information

Azure Data Studio version: azuredatastudio 1.32.0 (4a45ba7, 2021-08-16T18:08:28.086Z)
OS version: Windows_NT x64 10.0.19042

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-8665U CPU @ 1.90GHz (8 x 2112)
GPU Status	2d_canvas: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: enabled opengl: enabled_on rasterization: enabled skia_renderer: enabled_on video_decode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	15.75GB (7.47GB free)
Process Argv
Screen Reader	no
VM	0%

Extensions: none

Workaround

1. Change to a different kernel. Notice the "Changing kernel..." text.
2. Once the kernel is changed, check the Kernel dropdown. Notice that the kernels in the kernelspec list appear.

• I blogged about my workaround at Data Adventurer: Buggy Kernels List in Azure.

Possible Solution

Have the notebook pull its list of kernels from the kernelspec list from the beginning.

[sadukie]

To be clear, I do have the Show All Kernels setting checked:

[VasuBhog]

Hi @sadukie, we have been tracking this work internally and definitely will be working to fix this with the next release in part of the integration with the .Net Interactive Kernels extension.

[chlafreniere]

@VasuBhog @corivera has this been fixed?

[VasuBhog]

@chlafreniere I thought we discussed that this would've been a part of the .Net Interactive work, and as such was not prioritized for my work. I am not sure about @corivera update for this.

[corivera]

The .NET Interactive work isn't going to change anything about how we register kernels. We populate that dropdown based on the standardKernels that are registered in the extension manifest. Retrieving kernels only jupyter knows about is a separate issue.

[chlafreniere]

This won't make this upcoming release and requires some more design discussions. Moving this out.