Hello, I have been using jupyterhub for some time now and recently i faced an error saying File Load Error for notebook.ipynb Unreadable Notebook: /path/notebook.ipynb NotJSONError('Notebook does not appear to be JSON: \'{\\n "cells": [\\n {\\n "cell_type": "m...') I fixed this once by updating …

Are notebook saves not Atomic in jupyterhub?

gutow February 20, 2026, 1:43am 2

One low likelihood possibility is aging storage, as I found with one of my jupyter hub installations. See this thread Intermittent problems rendering saved widget states

Topic		Replies	Views
Unexpected error while saving file: Untitled17.ipynb [Errno 2] No such file or directory: '/home/jovyan/work/.~Untitled17.ipynb' -> '/home/jovyan/work/Untitled17.ipynb' JupyterHub jupyterhub , help-wanted	1	1231	December 2, 2022
On saving changes in one notebook reflecting same changes in the Other notebook(another directory) JupyterHub	0	290	December 2, 2020
Error Unexpected error while saving file: python_script/EQW/Untitled2.ipynb unable to open database file JupyterHub community , how-to , help-wanted , notebook	1	254	January 27, 2025
Identifying cause of issues saving JupyterLab	0	695	November 2, 2022
Cannot save notebook ("Permission denied") JupyterHub	2	11956	April 18, 2024