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Metrics for the worker's job, the queues and the work in flight (#195)

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The healthcheck answers while the worker is stuck on one job, and nothing
showed which job or for how long. STATS, one static of atomics, is kept as
the work happens: the worker's job and since when (a guard, so a failed or
stopped job is counted too), jobs and their seconds by kind, when a scan
last finished, web requests, feed fetches and downloads in progress, bytes
downloaded, live updates dropped for a listener that fell behind, DeadAir's
backlog and how long it has been on its file, and the artwork kept. With
the event queue, the DNS retries and the healthcheck's last counts, /metrics
still reads memory only. The dashboard's Daemon row and the prod-check
skill take them up.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Ray Slakinski
2026-10-11 15:14:54 +00:00
parent a985cfafef
commit 29f1cbce29
9 changed files with 254 additions and 6 deletions
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CHANGELOG.md
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@@ -9,7 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
### Added
- With `[web] metrics_bind` set, `/metrics` gives Prometheus, on a thread and port of its own, what the daemon holds between requests: database connections in use against the pool's size, commands waiting for the worker, live-update listeners, the runtime's tasks, memory and open files. The iPX dashboard graphs them in a Daemon row (#194).
- With `[web] metrics_bind` set, `/metrics` gives Prometheus, on a thread and port of its own, what the daemon holds between requests: database connections in use against the pool's size, commands waiting for the worker, live-update listeners, the runtime's tasks, memory and open files. So are the worker's job and how long it has run, jobs done and their time by kind, when a scan last finished, web requests, feed fetches and downloads in progress, download speed, live updates queued and missed, DeadAir's backlog and the file it is on, feeds waiting to retry, the artwork kept and the library's counts. The iPX dashboard graphs them in a Daemon row (#194, #195).
- The page reports its errors, the player's, how long play takes to start and how long it stalls to the server's log, and the requests one tap sets off share a trace, the playlist, audio and saved place of what it played included (#190, #192).
- Saving an episode from a show with DeadAir on saves it without its dead air, at your breathing room (#186).
- Choose the pause DeadAir leaves where it cuts a silence, from 0.2 to 0.5 seconds, for each show in its settings, as its breathing room, on a slider from brisk to relaxed. It is 0.3 seconds unless you change it, up from 0.2, which made speech sound rushed (#182, #183).