trace_db_call no longer takes an OpenTelemetry Context: it opens a
db.<query_type>.<operation> span (same name via otel.name, same
db.query_type / db.operation attrs) on the caller's ambient tracing span
and runs the DAO body inside it. The cx / ctx / context parameter is gone
from every DAO trait method, impl and call site, and from the helpers and
background drains that only threaded it.
The remaining request-handler spans (files, tags, faces, image, video,
favorites, duplicates, memories) move to #[instrument]; the
Context::current_with_span / with_remote_span_context plumbing is gone, as
is extract_context_from_request (the tracing-actix-web root span covers
it). otel::set_span_attributes replaces BoxedSpan::set_attributes.
Background-job raw spans (thumbnails, video actors) are left for #142.
tests/otel_db_spans.rs pins name, attributes, status and nesting (across
an instrumented spawn); otel_traceparent now uses an #[instrument]
handler. CLAUDE.md documents the tracing conventions.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Pure mechanical pass on the files this branch added/modified:
rustfmt reflow of a few long lines / chains, and the one
non-pre-existing clippy warning — replacing
`&[rel_path.clone()]` with `std::slice::from_ref(&rel_path)` in
`handlers::video::generate_video` to avoid the alloc + clone for a
single-element slice.
All 707 tests still pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The hash-keyed pipeline transcodes lazily, so a freshly mounted (or
freshly upgraded) library is "mostly pending" for the first hour
while the watcher works through the backlog. The operator wants a
live read on remaining work so they can tune `HLS_CONCURRENCY` and
know when to stop waiting.
Adds:
- `src/hls_stats.rs` — pure compute path (`stats_from_rows`) and an
Arc<Mutex<dyn ExifDao>> wrapper (`compute_and_publish`). Per
library: `total`, `with_playlist`, `pending`, `unsupported`,
`hashless_videos`. Dedup is by content_hash so duplicate-bytes-at-
N-paths counts once (same domain rule as `faces::stats`).
`hashless_videos` is a separate counter so the operator can see
the "hash backfill, then transcode" pipeline depth instead of
having NULL-hash rows just hide.
- Prometheus gauges labeled by library name:
`imageserver_hls_videos_total`, `..._with_playlist`, `..._pending`,
`..._unsupported`. Updated by the watcher at the end of every full-
scan tick *and* on every `/hls/stats` hit, so whichever surface the
operator is watching stays fresh. Registered in `main` alongside
the existing image/video gauges.
- `GET /hls/stats` — Claims-protected JSON snapshot of the same data
plus a top-level cross-library aggregate. Runs on a blocking pool
so it doesn't pin the actix worker; per-call cost is one
`list_paths_and_hashes_for_library` SQL query per library plus a
`stat()` per distinct video hash. Bounded — never invoked from
middleware, only from the explicit endpoint and the full-scan
tick. The watcher's end-of-tick `info!` summary line mirrors the
endpoint output for operators tailing the log.
- New `ExifDao::list_paths_and_hashes_for_library` method:
`SELECT rel_path, content_hash FROM image_exif WHERE library_id =
?`. Single round-trip; callers filter to video extensions
client-side because the schema doesn't carry media-type. Mock
impl in `files.rs` returns an empty vec.
Tests in `hls_stats::tests` exercise stats_from_rows directly (videos-
only filter, hash dedup, playlist vs sentinel decision, NULL-hash
hashless counting) plus a publish_gauges round-trip that reads the
gauge value back. Full suite (347 lib + 360 bin = 707) passes.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Cameron CordesandClaude Opus 5.5