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up2university / kuboxed

EOS, CERNBox, and SWAN boxed in Kubernetes
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Some SWAN urls leading to CERN instances #34

Closed michzimny closed 5 years ago

michzimny commented 5 years ago

At swan.test.up2university.eu, after the new version of SWAN had been deployed, 1-2 weeks ago, I experienced SWAN being unable to start a session. I cannot reproduce it, so it's not an issue right now. But I saw then the following error message:

SWAN could not start a session for your user, please try again. If the problem persists, please check: Do you have a CERNBox account? If not, click here. Is there a problem with the service? Find information here. If none of the options apply, please open a Support Ticket.

The "here" links led to CERN instances, e.g. https://cernbox.cern.ch/

They should rather point at the paired CERNBox instance at PSNC (cernbox.test.up2u...).

michzimny commented 5 years ago

The same happens for the current version of SWAN, for instance when it fails to spawn a kernel.

diocas commented 5 years ago

What do you mean by "when it fails to spawn a kernel"? When I tried to start a session, I was unable and then got blocked. Manual actions are necessary (restart jupyterhub, inside the jupyterhub container). But hopefully this is fixed in the update I want to push this week.

michzimny commented 5 years ago

What do you mean by "when it fails to spawn a kernel"?

I mean when it fails to spawn the jupyter-user* container. Regarding the spawn fail, I will report it separately soon.

diocas commented 5 years ago

This issue should be fixed with the update I sent you today.

michzimny commented 5 years ago

Other situation, when I see these errors, also in the latest version, is when one tries to launch jupyter to quickly after deployment of a new version. Then, the swanuser image is not yet fully downloaded, so it fails to start before the timeout of 30 secs.

diocas commented 5 years ago

That is true, but giving some waiting time before opening the gates to the public should be enough to solve it. I'm closing this issue but re-open it if you think these problems are not solved.