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nasa-fornax / fornax-images

Customised Jupyterhub images for the Fornax Platform deployments
BSD 3-Clause "New" or "Revised" License
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Suggest check robustness that running fornax session will reopen in browser upon change in WIFI, restart of computer, closing laptop lid, or laptop logout. #7

Open mstalbot opened 6 months ago

mstalbot commented 6 months ago

This issue is not yet well resolved upon enough tries, but recent closures of https://daskhub.fornaxdev.mysmce.com/USER/ suggest that changing WIFI, or events related to typically changing WIFI (example, you are closing the laptop lid when traveling from home to work), may lead to the session closing and forcing the user to start a new session. Its possible this may be related to inactivity of several hours, but doubtful such explains all cases. This is only a concern when python-based tasks are running on the session.

Note: Sometimes I am able to refresh the webpage, or select one of the other startup options, to get the original session back (exactly how has been too intermittent to reproduce the steps).

bsipocz commented 6 months ago

Enabling a checkpoint-restore system would address most of these concerns I think. E.g. https://github.com/dirac-institute/elsa, or its successor might be a solution?