ui: Jobs list doesn’t show a new job (on a locally-built binary?)

[backspace]

Nomad version

Nomad v1.1.0-dev (b890a1f7eb298d25fcb39fd2adbc9fe3d8ee14c2+CHANGES)

Operating system and Environment details

macOS 10.14.6

Issue

When viewing the Nomad UI at localhost:4646 on a locally-built binary, the jobs list doesn’t show a job newly submitted elsewhere. It’s not happening with a released binary 🤔

Reproduction steps

Build a Nomad binary that includes the UI with make dev-ui, run it, open the jobs list at localhost:4646/ui/jobs, submit a job via CLI.

Expected Result

The job should appear in the jobs list.

Actual Result

The job only appears upon refresh, or by leaving and returning to the jobs list.

[herter4171]

@backspace, I was going to make my own issue until I saw this. I am on Amazon Linux 2 with the Nomad version below, and we recently started using two head nodes instead of one. What I have found is that I need to refresh the page for new jobs to show up, which wasn't necessary for a single head node. I hope this gets resolved soon.

Nomad v1.1.2 (60638a086ef9630e2a9ba1e237e8426192a44244)

[fideloper]

Adding to this - I updated Nomad from 0.12.* to 1.2.6 and saw this behavior.

With 3 servers, and an auto-scaled number of clients (Ubuntu 18.04 AMD64), the Jobs UI does not refresh automatically any longer. I have to refresh the browser.

I'm not sure if this is Chrome-specific, perhaps when you leave the page it stops long-lived HTTP requests:

I can see here that job requests seem to get cancelled. I usually keep the tab open forever-ish and check back occasionally.

[josegonzalez]

I'm also seeing this locally, where it definitely wasn't an issue before. It makes debugging issues quite a bit more annoying as I typically have 5-6 tabs open as I trigger various actions in Nomad.

[philrenaud]

Fixed as part of #20452