Jupyter Hub connection failure

[thiagoacarvalho]

Type: Bug

After the upgrade to version v2024.5.1002432242, people from my institution could no longer connect to the remote JupterHub via url with token generated in the Hub

Extension version: 2023.10.1003012305
VS Code version: Code 1.92.2 (fee1edb8d6d72a0ddff41e5f71a671c23ed924b9, 2024-08-14T17:29:30.058Z)
OS version: Windows_NT x64 10.0.19045
Modes:

System Info

Item	Value
CPUs	11th Gen Intel(R) Core(TM) i5-1145G7 @ 2.60GHz (8 x 1498)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	15.40GB (1.07GB free)
Process Argv	--crash-reporter-id d3d9fd43-6fe2-4be3-bfdf-6b426ab2fde4
Screen Reader	no
VM	0%

A/B Experiments

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nativerepl1:31104043
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pythonrstrctxt:31112756
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wkspc-onlycs-c:31111717
wkspc-ranged-t:31125599
fje88620:31121564
aajjf12562cf:31125794

[DonJayamanne]

I'm sorry you are running into this issue, and thank you for filing this issue.
Please can you confirm that reverting the extension to the older version works?
You've mentioned two versions hence the question.

Also is the token part of the Url,
Or do you first enter the Jupyter Hub Url, then the user name and then the token?
& What quick pick are you using to connect to Jupyter Hub
Please can you share some screenshots of each step (feel free to scrub off the Url),
* but I'd like to quick pick options you use, and the indvidual items selected and entered, e.g. entering Url and token separately or not, etc

Aslo edited your message to remove the duplicate, I guess you didn't mean to duplicate it, then again perhaps you were frustrated with the issue, again I do apologize for that.

[vojtavozda]

Hi, I can confirm I have difficulties when connecting to JupyterHub Server after update. Token is not part of the url (url: https://max-jhub.desy.de/user/, then username, then token). I tried generating new tokens, reinstalling everything and then I found out that installing the previous version (v2023.10.1003012305) solves the issue. Jupyter: Show Output gave me the following lines, then it stops saying Connecting to Python 3 (ipykernel)... in the interactive window.

18:32:37.211 [info] Starting Kernel () for '/Interactive-1.interactive' (disableUI=false)
18:32:37.303 [error] Exception while handling messages: TypeError: First argument to DataView constructor must be an ArrayBuffer
18:32:37.378 [error] Exception while handling messages: TypeError: First argument to DataView constructor must be an ArrayBuffer
18:32:37.378 [error] Exception while handling messages: TypeError: First argument to DataView constructor must be an ArrayBuffer
18:32:37.676 [info] Started session for kernel connectToLiveRemoteKernel:<some uuid>
18:32:37.682 [info] Kernel successfully started
18:32:37.721 [error] Exception while handling messages: TypeError: First argument to DataView constructor must be an ArrayBuffer (repeated 30x)

[torbensky]

Moved my original comment here to #67 as that issue was more specific. Most likely this issue is a duplicate of that one.

[zeckem19]

similar issue i see this output. i am using http://my-jupyterhub-domain.com but it seems to be fetching kernels from localhost?

12:53:59.933 [info] http://my-jupyterhub-domain.com/user/user/: Kernel started: 5e422845-47ec-4163-82b1-0579e638d4e9
12:54:00.324 [info] Started session for kernel startUsingRemoteKernelSpec:bb0b41e85d54c0b73ade4045261c0c9eeb168a535000d4b1c37ae3cdcadf8899..python3./python./.-m#ipykernel_launcher
12:54:00.944 [info] Kernel successfully started
12:54:00.952 [error] Error fetching kernels from http://localhost:8080/user/user/ (JupyterHub): FetchError: request to http://localhost:8080/user/user/api/kernels?1725771240946 failed, reason: 
    at ClientRequest.<anonymous> (/Users/~/.vscode/extensions/ms-toolsai.jupyter-hub-2024.5.1002432242/dist/extension.node.js:64208:18)
    at ClientRequest.emit (node:events:519:28)
    at Socket.socketErrorListener (node:_http_client:500:9)
    at Socket.emit (node:events:519:28)
    at emitErrorNT (node:internal/streams/destroy:169:8)
    at emitErrorCloseNT (node:internal/streams/destroy:128:3)
    at processTicksAndRejections (node:internal/process/task_queues:82:21)

[inverts]

We are also encountering this issue.
I have tried both entering in the URL with the token in the query params, as well as using the username + token prompts, and creating new tokens for good measure - no luck with anything except reverting to the old version.
I did notice that in our JupyterHub server, the kernels do get created and I can see log messages in VSCode like this:

10:00:49.205 [info] Starting Kernel (my-kernel-name) for 'Untitled-1.ipynb' (disableUI=false)
10:00:50.229 [info] https://OUR.DOMAIN.URL/user/~/: Kernel started: c9ce5b90-7047-409c-b774-99f952aed3c7
10:00:58.251 [info] Started session for kernel startUsingRemoteKernelSpec:3ad1433f2b9495db89607e6b2adb8bca76cadd9432a5805eedb4d7b6b7366367..my-kernel-name./path/to/python./.-m#ipykernel_launcher
10:00:58.419 [info] Kernel successfully started

From the errors it seems like the maybe the user name isn't getting inserted correctly? It seems like I might expect the url in the error below to instead be something like https://OUR.DOMAIN.URL/user/USER.NAME/

09:59:17.094 [warn] Password for https://OUR.DOMAIN.URL/user/~/ was invalid.
09:59:17.523 [error] Error fetching kernels from https://OUR.DOMAIN.URL/user/~ (OUR.DOMAIN.URL): r [Error]: Forbidden
    at Function.create (/Users/~/.vscode/extensions/ms-toolsai.jupyter-2024.8.0-darwin-x64/dist/node_modules/@jupyterlab/services.js:11:1006)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at Object.Rl [as listRunning] (/Users/~/.vscode/extensions/ms-toolsai.jupyter-2024.8.0-darwin-x64/dist/node_modules/@jupyterlab/services.js:11:4507)
    at n.getRunningKernels (/Users/~/.vscode/extensions/ms-toolsai.jupyter-2024.8.0-darwin-x64/dist/extension.node.js:181:18228)
    at async Promise.all (index 0)
    at LD.listKernelsFromConnection (/Users/~/.vscode/extensions/ms-toolsai.jupyter-2024.8.0-darwin-x64/dist/extension.node.js:282:19672)
    at /Users/~/.vscode/extensions/ms-toolsai.jupyter-2024.8.0-darwin-x64/dist/extension.node.js:282:17925 {
  response: p [Response] {
    size: 0,
    timeout: 0,
    [Symbol(Body internals)]: { body: [PassThrough], disturbed: true, error: null },
    [Symbol(Response internals)]: {
      url: 'https://OUR.DOMAIN.URL/user/~/api/kernels?1725901157097',
      status: 403,
      statusText: 'Forbidden',
      headers: [p [Headers]],
      counter: 0
    }
  },
  traceback: ''
}

Other version info:

Visual Studio Code (1.93.0, undefined, desktop)
Jupyter Extension Version: 2024.8.0.
Python Extension Version: 2024.14.0.
Pylance Extension Version: 2024.8.2.
Platform: darwin (x64). 

I hope this helps, this is a very helpful extension!

[DonJayamanne]

@inverts @zeckem19
Please could you

• Download the attached file
• Extract this file
• Open VS Code and select the command Install from VSIX
• Select the above extracted VSIX
• When prompted to reload VS Code, please do so
• Next, please enable debug logging in Jupyter Hub (open user settings and change as bellow)
  
• Next, reload VS Code
• Try to replicate the issue once again
• Share the logs from the JupyterHub output panel.

ms-toolsai-jupyter-hub-insiders.vsix (1).zip

[DonJayamanne]

Closing this issue as it’s been almost a month since the info was requested
Please feel free to comment here and I’ll reopen this issue, or feel free to create a new one