rays 9fc1e7e248 Prometheus metrics for the daemon's state between requests (#194) ...

Logs and traces show requests, scans and downloads; nothing showed what
the daemon holds meanwhile. /metrics, behind sign-in, gives database
connections in use and idle against the pool's maximum, commands waiting
for the worker, live-update listeners, free torrent slots, episodes
playing through DeadAir, the library's counts, the tokio runtime's
workers, tasks and queue, and the process's memory and open files, in
Prometheus's text format, written by hand rather than with a client
library. Not logged or traced: Prometheus asks every 15 s. The iPX
dashboard gains a Daemon row of them.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-11 14:56:54 +00:00

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