The metrics API will not stay up after its 09:18 restart, and the dashboards that query it show no data.
A configuration change for the metrics API went out at 09:15, and the service has not stayed up.
Operators' dashboards that query it are blank in the middle of a busy morning.
The storefront on the same host is healthy and taking customer traffic.
One suggestion in the channel is to restart everything on the box and see what comes back.
The fix is yours to find: hints, the recovery checks and the debrief unlock inside the incident.
The alert fires and the clock starts. Read the page and the briefing.
Work in a simulated shell with realistic output: logs, configs, services.
Change the system the way you would in production. Hints are there if you get stuck.
Automated checks verify the recovery, then the debrief explains what happened.
Free, instant, and it works on your phone. No signup: start as a guest and save your progress later.