jigold

I changed the control loop to use the old method of estimating ready cores for now. I'll change it to the new way in a second PR. This way we...

This is ready for a look. The tests are passing except one service backend test timed out.

@daniel-goldstein Let's see if the tests pass now, but should be really close!!!

I forgot to add the UI time_updated field... Will do so now.

I put the time_updated field in. I'll test it with dev deploy once everything else is ready to go.

Stacked on #12208

Note to self to check the logs for error messages before merging!

I changed that the `_update_token` is no longer cached. I thought it was the source of a bug, but it was something else that was an issue. However, I felt...

Can you add the links you found where they suggested using the headless services approach for upstream connections?

I just noticed that we didn't add a foreign key constraint on the jobs table for the batch update. I think unfortunately we should add it... thoughts?