The metrics were exported and the only way to look at them was to stand up
Prometheus beside the binary. For a project whose whole shape is one static
binary with no dependencies, that is the wrong default: the common case is
somebody wanting to know how full their cluster is, and that should not cost
a monitoring stack.
/admin now shows capacity per GPU class with a usage bar, free whole nodes
per fabric — the number that decides whether a replica spanning nodes can
land, since free cards on the wrong fabric are not capacity for a model that
needs this one — and which replicas are holding hardware nobody is asking
for. Nodes gain their memory and how many model files they can see.
Taken from the same Summary that ctl status uses rather than derived in the
page, because two implementations of the same arithmetic drift apart and the
one on the screen is the one people would believe.
A faulty card counts as neither used nor free, matching the scheduler.
Counting it free is how a cluster looks like it has room it does not, and a
page that disagreed with placement about that would be worse than no page.
Prometheus stays supported and is now the answer to a narrower question:
history, alerting, several clusters at once. The dashboard shows what is
true now and keeps nothing, which is the honest division between them.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
