vscode-jupyter: Unable to start kernel - Waiting for Jupiter Session to be Idle (Kernel fails to start as completions request crahes without sending a response back)

Applies To

  • Notebooks (.ipynb files)
  • Interactive Window and/or Cell Scripts (.py files with #%% markers)

What happened?

First of all - thank you so much for making this extension!

Expected: I run docker container tensorflow/tensorflow:2.6.0-gpu-jupyter on my server that has a GPU, since I am connecting from a M1 Mac. I have used this for weeks without issue. I would connect to the server with IP + token and the system would just work.

Actually:

  • I restarted my docker container yesterday on the server and opened VSCode. I think the plug-in as able to connect to my server, but when I try to run any cells, it just says Connecting to kernel: Python 3: Waiting for Jupiter Session to be idle. This message stays up for hours even.
  • In the top right, where I would select the kernel also, I always thought it would say (Remote) next to the kernel name, so I’m not sure if now my system and the server’s kernels are getting confused?
  • I logged into the jupyter URL via browser and was able to see Notebook running so it’s like commands are being sent but not received. I wonder if the ZeroMQ error is related as mentioned at the top of the Jupyter Logs output.

Anyways, I pasted the Jupyter extension logs below. To help explain the logs better and put a few character returns in for easier reading.

  • Everything up to and including 09:50:32: This is me just starting up VSCode
  • 09:51:08 - This is me connecting to the server by specifying the URI + token
  • 09:51:52 - This is mean trying to execute a cell.

VS Code Version

Version: 1.64.2 (Universal) Commit: f80445acd5a3dadef24aa209168452a3d97cc326 Date: 2022-02-09T22:00:58.347Z Electron: 13.5.2 Chromium: 91.0.4472.164 Node.js: 14.16.0 V8: 9.1.269.39-electron.0 OS: Darwin arm64 20.6.0

Jupyter Extension Version

v2022.1.1201831736

Jupyter logs

Visual Studio Code (1.64.2, undefined, desktop)
Jupyter Extension Version: 2022.1.1201831736.
Python Extension Version: 2022.0.1814523869.
User belongs to experiment group 'jupyterTest'
User belongs to experiment group 'jupyterEnhancedDataViewer'
Error 09:50:32: Exception while attempting zmq : [Error: No native build was found for platform=darwin arch=arm64 runtime=electron abi=89 uv=1 armv=8 libc=glibc node=14.16.0 electron=13.5.2
    loaded from: /Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/node_modules/zeromq

    at Function.load.path (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/node_modules/node-gyp-build/index.js:59:9)
    at load (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/node_modules/node-gyp-build/index.js:21:30)
    at Object.<anonymous> (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/node_modules/zeromq/lib/native.js:6:43)
    at Module.u._compile (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/loader.js:4:1313)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1155:10)
    at Module.load (internal/modules/cjs/loader.js:982:32)
    at Module._load (internal/modules/cjs/loader.js:823:14)
    at Function.f._load (electron/js2c/asar_bundle.js:5:12913)
    at Function.i._load (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/services/extensions/node/extensionHostProcess.js:112:32271)
    at Function.p._load (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/services/extensions/node/extensionHostProcess.js:112:28855)
    at Function.v._load (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/services/extensions/node/extensionHostProcess.js:107:60382)
    at Module.require (internal/modules/cjs/loader.js:1006:19)
    at h (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/loader.js:4:699)
    at Object.<anonymous> (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/node_modules/zeromq/lib/index.js:3:16)
    at Module.u._compile (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/loader.js:4:1313)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1155:10)
    at Module.load (internal/modules/cjs/loader.js:982:32)
    at Module._load (internal/modules/cjs/loader.js:823:14)
    at Function.f._load (electron/js2c/asar_bundle.js:5:12913)
    at Function.i._load (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/services/extensions/node/extensionHostProcess.js:112:32271)
    at Function.p._load (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/services/extensions/node/extensionHostProcess.js:112:28855)
    at Function.v._load (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/workbench/services/extensions/node/extensionHostProcess.js:107:60382)
    at Module.require (internal/modules/cjs/loader.js:1006:19)
    at h (/Applications/Visual Studio Code.app/Contents/Resources/app/out/vs/loader.js:4:699)
    at Object.<anonymous> (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/extension.js:51:195125)
    at n (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/extension.js:1:186)
    at d.zmqSupported (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/extension.js:113:223967)
    at d.isSupportedForLocalLaunch (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/extension.js:113:223758)
    at d.get isSupported [as isSupported] (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/extension.js:113:223668)
    at t.registerTypes (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/extension.js:66:1057793)
    at /Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/extension.js:66:275217
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at async /Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/extension.js:51:785307
    at async t.activate (/Users/topcat/.vscode/extensions/ms-toolsai.jupyter-2022.1.1201831736/out/client/extension.js:51:784986)
    at async Promise.all (index 0)]
Info 09:50:32: Checking for server existence.
Info 09:50:32: Checking for server usability.
Info 09:50:32: Starting notebook server.
Info 09:50:32: Connecting to server
Info 09:50:32: Connecting to process server
Info 09:50:32: Connecting server kernel http://192.168.1.180:8888/
Connecting to Jupyter server at http://192.168.1.180:8888/
Info 09:50:32: Creating server with settings : {"baseUrl":"http://192.168.1.180:8888/","appUrl":"","wsUrl":"ws://192.168.1.180:8888/","token":"finenow","appendToken":true,"init":{"cache":"no-store","credentials":"same-origin"}}
Info 09:50:32: Connection complete server
Info 09:50:32: Server started.
Info 09:50:32: Creating server with settings : {"baseUrl":"http://192.168.1.180:8888/","appUrl":"","wsUrl":"ws://192.168.1.180:8888/","token":"finenow","appendToken":true,"init":{"cache":"no-store","credentials":"same-origin"}}
Info 09:50:32: Experiment status for python is {"enabled":true,"optInto":[],"optOutFrom":[]}
Info 09:50:33: Disposing session manager
Info 09:50:33: SessionManager - dispose contents manager
Info 09:50:33: ShutdownSessionAndConnection - dispose session manager
Info 09:50:33: Finished disposing jupyter session manager
Info 09:50:33: Creating server with settings : {"baseUrl":"http://192.168.1.180:8888/","appUrl":"","wsUrl":"ws://192.168.1.180:8888/","token":"finenow","appendToken":true,"init":{"cache":"no-store","credentials":"same-origin"}}
Info 09:50:33: Creating server with settings : {"baseUrl":"http://192.168.1.180:8888/","appUrl":"","wsUrl":"ws://192.168.1.180:8888/","token":"finenow","appendToken":true,"init":{"cache":"no-store","credentials":"same-origin"}}
Info 09:50:33: Disposing session manager
Info 09:50:33: SessionManager - dispose contents manager
Info 09:50:33: ShutdownSessionAndConnection - dispose session manager
Info 09:50:33: Finished disposing jupyter session manager
Info 09:50:33: Creating server with settings : {"baseUrl":"http://192.168.1.180:8888/","appUrl":"","wsUrl":"ws://192.168.1.180:8888/","token":"finenow","appendToken":true,"init":{"cache":"no-store","credentials":"same-origin"}}
Info 09:50:33: Disposing session manager
Info 09:50:33: SessionManager - dispose contents manager
Info 09:50:33: ShutdownSessionAndConnection - dispose session manager
Info 09:50:33: Finished disposing jupyter session manager
Info 09:50:33: Creating server with settings : {"baseUrl":"http://192.168.1.180:8888/","appUrl":"","wsUrl":"ws://192.168.1.180:8888/","token":"finenow","appendToken":true,"init":{"cache":"no-store","credentials":"same-origin"}}
Info 09:50:33: Disposing session manager
Info 09:50:33: SessionManager - dispose contents manager
Info 09:50:33: ShutdownSessionAndConnection - dispose session manager
Info 09:50:33: Finished disposing jupyter session manager
Info 09:50:33: Find preferred kernel for ~/Documents/Code/processor/Classification copy.ipynb with metadata {"kernelspec":{"display_name":"Python 3","language":"python","name":"python3"}} & preferred interpreter 
Info 09:50:33: Preferred Remote kernel for ~/Documents/Code/processor/Classification copy.ipynb is 29edf0b4-7eb9-4b0f-bb4b-9154a6a8cda0
Info 09:50:33: PreferredConnection: 29edf0b4-7eb9-4b0f-bb4b-9154a6a8cda0 found for NotebookDocument: ~/Documents/Code/processor/Classification copy.ipynb
Info 09:50:33: TargetController found ID: 29edf0b4-7eb9-4b0f-bb4b-9154a6a8cda0 for document ~/Documents/Code/processor/Classification copy.ipynb
Info 09:50:33: Setting controller affinity for ~/Documents/Code/processor/Classification copy.ipynb 29edf0b4-7eb9-4b0f-bb4b-9154a6a8cda0
Info 09:50:33: Disposing session manager
Info 09:50:33: SessionManager - dispose contents manager
Info 09:50:33: ShutdownSessionAndConnection - dispose session manager
Info 09:50:33: Finished disposing jupyter session manager
Info 09:50:33: Find preferred kernel for ~/Documents/Code/processor/Classification.ipynb with metadata {"kernelspec":{"display_name":"Python 3","language":"python","name":"python3"}} & preferred interpreter 
Info 09:50:33: Preferred Remote kernel for ~/Documents/Code/processor/Classification.ipynb is 46b01be8-6f93-4cca-a637-5454eab31f94
Info 09:50:33: PreferredConnection: http://192.168.1.180:8888/..python3./usr/bin/python3..-m#ipykernel_launcher found for NotebookDocument: ~/Documents/Code/processor/Classification.ipynb
Info 09:50:33: TargetController found ID: http://192.168.1.180:8888/..python3./usr/bin/python3..-m#ipykernel_launcher for document ~/Documents/Code/processor/Classification.ipynb
Info 09:50:33: Setting controller affinity for ~/Documents/Code/processor/Classification.ipynb http://192.168.1.180:8888/..python3./usr/bin/python3..-m#ipykernel_launcher
Info 09:50:33: Interrupt requested & no kernel.
Info 09:50:33: Setting setActiveController for ~/Documents/Code/processor/Classification copy.ipynb
Info 09:50:33: Setting setActiveController for ~/Documents/Code/processor/Classification.ipynb
Info 09:50:33: KernelProvider switched kernel to id = http://192.168.1.180:8888/..python3./usr/bin/python3..-m#ipykernel_launcher
Info 09:50:33: KernelProvider switched kernel to id = http://192.168.1.180:8888/..python3./usr/bin/python3..-m#ipykernel_launcher
Info 09:50:33: Creating controller for jupyter-notebook with interpreter /opt/homebrew/bin/python3
Info 09:50:33: Getting activation commands for /opt/homebrew/bin/python3 are not cached. May take a while.
Info 09:50:33: Creating controller for jupyter-notebook with interpreter /opt/homebrew/bin/python3
Info 09:50:33: Process Execution: > /opt/homebrew/bin/python3 -c "import jupyter"
> /opt/homebrew/bin/python3 -c "import jupyter"
Info 09:50:33: Process Execution: > /opt/homebrew/bin/python3 -c "import notebook"
> /opt/homebrew/bin/python3 -c "import notebook"
Info 09:50:33: Process Execution: > /opt/homebrew/bin/python3 -m pip list
> /opt/homebrew/bin/python3 -m pip list
Info 09:50:33: Registering dummy command feature



Info 09:51:08: Checking for server existence.
Info 09:51:08: Checking for server usability.
Info 09:51:08: Starting notebook server.
Info 09:51:08: Server started.
Info 09:51:08: Creating server with settings : {"baseUrl":"http://192.168.1.180:8888/","appUrl":"","wsUrl":"ws://192.168.1.180:8888/","token":"finenow","appendToken":true,"init":{"cache":"no-store","credentials":"same-origin"}}
Info 09:51:08: Disposing session manager
Info 09:51:08: SessionManager - dispose contents manager
Info 09:51:08: ShutdownSessionAndConnection - dispose session manager
Info 09:51:08: Finished disposing jupyter session manager



Info 09:51:52: Execute Cells request 1
Info 09:51:52: Execute Cell 1 ~/Documents/Code/processor/Classification copy.ipynb
Info 09:51:52: Starting Notebook in kernel.ts id = http://192.168.1.180:8888/..python3./usr/bin/python3..-m#ipykernel_launcher
Info 09:51:52: Starting a new session for kernel id = http://192.168.1.180:8888/..python3./usr/bin/python3..-m#ipykernel_launcher, name = python3
http://192.168.1.180:8888/: Kernel started: f21a39fc-3615-4760-b661-1237b0a842d1
Info 09:51:52: Waiting for idle on (kernel): f21a39fc-3615-4760-b661-1237b0a842d1 -> unknown
Info 09:51:53: Finished waiting for idle on (kernel): f21a39fc-3615-4760-b661-1237b0a842d1 -> idle
Info 09:51:53: Started session for kernel http://192.168.1.180:8888/..python3./usr/bin/python3..-m#ipykernel_launcher
Info 09:51:53: Waiting for idle (session) kernel http://192.168.1.180:8888/..python3./usr/bin/python3..-m#ipykernel_launcher
Info 09:51:53: Waiting for idle on (kernel): f21a39fc-3615-4760-b661-1237b0a842d1 -> idle
Info 09:51:53: Finished waiting for idle on (kernel): f21a39fc-3615-4760-b661-1237b0a842d1 -> idle
Info 09:51:53: Finished connecting kernel http://192.168.1.180:8888/..python3./usr/bin/python3..-m#ipykernel_launcher
http://192.168.1.180:8888/: Creating new notebook 
Info 09:51:53: Updating preferred kernel for remote notebook f21a39fc-3615-4760-b661-1237b0a842d1
Info 09:51:53: Storing Preferred remote kernel for ~/Documents/Code/processor/Classification copy.ipynb is f21a39fc-3615-4760-b661-1237b0a842d1

Coding Language and Runtime Version

No response

Language Extension Version (if applicable)

No response

Anaconda Version (if applicable)

No response

Running Jupyter locally or remotely?

Remote

About this issue

  • Original URL
  • State: closed
  • Created 2 years ago
  • Comments: 18 (7 by maintainers)

Most upvoted comments

@JorisDeRidder please install the latest pre-release version of the jupyter extension and it should work. when you go into the extension panel ensure you install pre-release version.

+7
DonJayamanne on Feb 16, 2022

Problem solved! Wonderful, many thanks!

+1
JorisDeRidder on Feb 16, 2022
Read more comments on GitHub
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vscode-jupyter: Unable to start session for kernel Python 3.8.5 32-bit →