We face problems in R notebooks . It might be related to Dataiku version upgrade or modifying active Jupyter extensions because this was our recent activity.
Now notebook usually crashes after some heavier (in terms of execution time) cell is being executed. For example, after reading a heavy dataset notebook has a black dot always present in the top right corner even though the cell is finished. It cannot execute any other cell afterward even if that cell is simple as`1+1`.
An example can be seen in the screenshot attached.
As jupyter notebook doesn't log all the messages during the code execution (only warnings and errors), you may want to run the code in the recipe. This may shed some light on what's going on under the hood.
You will need to create a "dummy" output dataset as all code recipes require output datasets.