Jupyter Notebook hangs up dead with no feedback in SSH Remote Development

[htkg]

Applies To

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

What happened?

When using Jupyter Notebook in an SSH Remote Development setup, the following issues occur after approximately 5 minutes of use:

Prerequisites

1. Remote connection established via Tailscale VPN to a VPS.
2. New .ipynb file created and opened.
3. Several code cells added to the notebook.

Observed Issues:

1. Notebook Unresponsiveness: Attempting to execute a cell causes the entire notebook to freeze. The only resolution is to "Reload Window."
2. Pylance Failure: Pylance extension ceases to function.
3. JSON Parsing Error: All cells display the following error message:
   "Expected a Jupyter Notebook, which must be internally stored as JSON, but this file isn't valid JSON: expected value at line 1 column 1"

These issues consistently arise after approximately 5 minutes of active use, rendering the Jupyter Notebook environment unusable and requiring a full window reload.

VS Code Version

1.91.0

Jupyter Extension Version

v2024.6.0

Jupyter logs

13:56:14.215 [debug] Handle Execution of Cells 0 for ~/projects/~-dev/oai_service.ipynb
13:56:14.225 [debug] Kernel acknowledged execution of cell 0 @ 1720522574224
13:56:42.365 [info] Disposing request as the cell (2) was deleted ~/projects/~-dev/oai_service.ipynb
13:56:42.365 [debug] Disposing kernel associated with ~/projects/~-dev/oai_service.ipynb, isClosed=true
13:56:42.365 [info] Dispose Kernel '~/projects/~-dev/oai_service.ipynb' associated with '~/projects/~-dev/oai_service.ipynb'
13:56:42.365 [debug] Cancel pending cells
13:56:42.366 [debug] Shutdown session 7a7d86b4-9b19-4fa8-a292-4d1b2e5a4dc4, .jvsc74a57bd0bdb88f3e940ffb7b55604193ab3c6c8690e5a93877cab7d2141508066a70521d./home/~/projects/~-dev/.venv/python./home/~/projects/~-dev/.venv/python.-m#ipykernel_launcher - start called from Error: 
	at E_.shutdown (/home/~/.vscode-server/extensions/ms-toolsai.jupyter-2024.6.0-linux-x64/dist/extension.node.js:304:1140)
	at E_.dispose (/home/~/.vscode-server/extensions/ms-toolsai.jupyter-2024.6.0-linux-x64/dist/extension.node.js:304:623)
	at Ss (/home/~/.vscode-server/extensions/ms-toolsai.jupyter-2024.6.0-linux-x64/dist/extension.node.js:115:867)
	at e (/home/~/.vscode-server/extensions/ms-toolsai.jupyter-2024.6.0-linux-x64/dist/extension.node.js:285:31789)
	at YD.dispose (/home/~/.vscode-server/extensions/ms-toolsai.jupyter-2024.6.0-linux-x64/dist/extension.node.js:285:32034)
	at my.disposeOldKernel (/home/~/.vscode-server/extensions/ms-toolsai.jupyter-2024.6.0-linux-x64/dist/extension.node.js:285:23341)
	at my.<anonymous> (/home/~/.vscode-server/extensions/ms-toolsai.jupyter-2024.6.0-linux-x64/dist/extension.node.js:285:21548)
	at n.value (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:166:20994)
	at r.B (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:83:737)
	at r.C (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:83:807)
	at r.fire (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:83:1023)
	at p.$acceptDocumentAndEditorsDelta (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:161:9554)
	at S (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:153:5986)
	at S.Q (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:153:5752)
	at S.M (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:153:4778)
	at S.L (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:153:3830)
	at n.value (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:153:2297)
	at r.B (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:83:737)
	at r.fire (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:83:954)
	at o.fire (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:108:14502)
	at n.value (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:179:8639)
	at r.B (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:83:737)
	at r.fire (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:83:954)
	at o.fire (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:108:14502)
	at f.z (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:108:17638)
	at n.value (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:108:16019)
	at r.B (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:83:737)
	at r.fire (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:83:954)
	at m.acceptChunk (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:108:12248)
	at /home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:108:11518
	at Socket.v (/home/~/.vscode-server/cli/servers/Stable-ea1445cc7016315d0f5728f8e8b12a45dc0a7286/server/out/vs/workbench/api/node/extensionHostProcess.js:176:14266)
	at Socket.emit (node:events:518:28)
	at addChunk (node:internal/streams/readable:559:12)
	at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)
	at Readable.push (node:internal/streams/readable:390:5)
	at Pipe.onStreamRead (node:internal/stream_base_commons:190:23)
13:56:42.367 [debug] Dispose Kernel process 170469.
13:56:42.371 [debug] Kernel got disposed, hence there is no longer a kernel associated with ~/projects/~-dev/oai_service.ipynb
13:56:42.372 [debug] Notebook document ~/projects/~-dev/oai_service.ipynb got closed
13:56:42.373 [debug] Cancel executions after closing notebook ~/projects/~-dev/oai_service.ipynb
13:56:42.373 [debug] Cancel pending cells
13:56:42.373 [debug] Cancel executions after closing notebook ~/projects/~-dev/oai_service.ipynb
13:56:42.373 [debug] Cancel pending cells
13:56:42.375 [warn] Cancel all remaining cells due to dead kernel
13:56:42.375 [debug] Cancel pending cells
13:56:42.393 [debug] KernelProcess Exited 170469, Exit Code - undefined 
13:56:42.424 [debug] Disposed Kernel process 170469.
13:56:42.426 [debug] Shutdown session 7a7d86b4-9b19-4fa8-a292-4d1b2e5a4dc4, .jvsc74a57bd0bdb88f3e940ffb7b55604193ab3c6c8690e5a93877cab7d2141508066a70521d./home/~/projects/~-dev/.venv/python./home/~/projects/~-dev/.venv/python.-m#ipykernel_launcher - shutdown complete
13:57:21.057 [debug] No interpreter for Pylance for Notebook URI "~/projects/~-dev/oai_service.ipynb"

Coding Language and Runtime Version

Python 3.11.9

Language Extension Version (if applicable)

Python: v2024.10.0; PyLance: v2024.7.1

Anaconda Version (if applicable)

No response

Running Jupyter locally or remotely?

N/A or Not sure