BUG negative submission counter

[maikia]

Sometimes the counter of the submissions on the ramp.studio is negative:

So far we have only seen this behavior for the events running on the AWS spot instances

[agramfort]

RAMP challenging the laws of physics :)

…

[lucyleeow]

So far we have only seen this behavior for the events running on the AWS spot instances

Have we seen this for AWS worker, not spot instances (only on-demand) as well? Might be a problem with AWS worker?

[maikia]

We have only seen it for the locomotion and meg challenge so far: both set on spot instances.

on_demand is temporarily not working on the server so it is hard to check now but as for now we didn't see it for the on_demand before

[kegl]

Hm, normally there is a special "unsubmitted" submission containing the sandbox of the user, created when the user signs up. So I think we subtract the number of registered users from the number of submissions.

A more general advice: you can open a Jupyter server through a password-protected port and have notebooks in which you can access the DB with query commands. This served me countless times for debugging but also for visualization.