Silently failing when running out of memory

[alexwalkerepi]

When trying to join two large pandas dataframes, my notebook kept taking forever to run the cell containing the join. It would do some processing, then CPU usage would drop off, but the cell would look as though it was still working: [*]

It worked fine with the same code joining smaller dataframes, and I resolved it by increasing the memory resource allocated to docker. I think it was due to running out of memory, but there was no indication of this within JupyterLab.

It might be useful to be able to show memory usage within JupyterLab. This extension might be a possibility?
https://github.com/jtpio/jupyterlab-system-monitor