codex/bound-transcode-segments
5
Commits
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075e217477 |
feat(playback): plan v3 routes from pooled node capabilities (#408)
* feat(playback): plan v3 routes from pooled node capabilities Protocol v3 planning previously gated every server transformation on the API host's local ffmpeg probe, so deployments whose toolchain lives on transcode nodes (libx264/aac/dovi_rpu on nodes, minimal binary locally) received conversion terminals before transport preparation ever consulted the selected node's capabilities. Planning now draws on two registries split by executor pool: - Registry stays the local probe and keeps gating progressive remux routes, which execute in this process and can never offload. - HLSRegistry widens availability for HLS deliveries with the pooled transcode nodes' advertised transformations (name and recipe version pinned to the local specs), fetched concurrently under a short planning deadline through the existing TTL cache. Failures are now negatively cached so an unreachable node costs one timeout per window rather than one per start. The remux family picks the executor per branch: a recipe needing transformations only nodes carry skips the progressive remux and ships the same recipe on the HLS remux delivery instead. The local-fallback path in prepareTransportV3 now validates plans against the local registry's advertised set — mirroring the per-node validation — and returns the existing retryable transcode_node_capability_unavailable terminal when no executor can run the recipe, instead of spawning an ffmpeg that would fail at runtime. Deferred from PR #398 review (comment 3579105380). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(playback): harden union capability planning from review Addresses all four review findings on the capability-union feature: - Select capability-matching nodes: plans carrying server transformations now restrict node selection to nodes whose advertised capabilities validate against the plan (nodepool.PlanSessionWith with a set-lookup predicate), so heterogeneous pools cannot load-balance a recipe onto a node that would reject it while a capable sibling exists. Transformation-free plans keep pure load-based selection. - Split the capability cache by consumer: planning honors negatively cached fetch failures (one timeout per window), while the transport path fetches through them — a memoized 3s planning deadline must not reject an already-selected node that the 10s transport budget could still validate. - Gate node-widened availability on the HLS engine: a progressive-only client that needs audio conversion keeps its specific retryable audio_conversion_unsupported terminal instead of falling through to a non-retryable adaptation_unavailable for routes it can never run; the DV strip union flag is gated identically. - Make HLSRegistry a lazy, memoized producer: the planner only builds the widened registry when a route decision depends on node capabilities, so direct-play and other source-preserving starts never wait on node capability fetches (or their dead-node deadlines). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com> |
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854d07cf8f |
feat(playback): add protocol v3 planning and recovery (#398)
* docs(playback): plan protocol v3 server implementation * docs(playback): incorporate protocol v3 review * feat(playback): implement protocol v3 server * fix(playback): persist empty route diagnostics * feat(playback): harden protocol v3 HDR routing * feat(playback): complete protocol v3 client contract * fix(playback): harden protocol v3 recovery * fix(playback): restore dovi_rpu strip filter for DV remuxes The v3 work renamed the Dolby Vision strip recipe to a dovi_split=mode=bl bitstream filter that does not exist in stock FFmpeg or jellyfin-ffmpeg; the probe failed closed on every deployment, disabling the new validated DV7-to-HDR10 route and regressing the previously working dovi_rpu=strip=1 remux path from main. Restore dovi_rpu across the probe, remux and HLS copy arguments, and the recipe-card constant. Also from review: validate the remux DV mode for every profile (garbage modes on non-P7 sources silently no-opped), reject preserve mode for P7 outright (a base-layer-only remux cannot preserve dual-layer DV), tag dvhe sample entries only for the explicit v3 preserve recipe so legacy web/jellycompat remuxes keep their pre-v3 hev1 labeling, and honor the token-frozen DV mode in the proxy remux path instead of legacy-auto. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(playback): correct v3 planner policy and contract validation Review fixes to the v3 planner and wire contracts: - Bar Profile 7 sources from the non-strip progressive remux route: a base-layer-only remux can never deliver native dual-layer DV, so the planner no longer emits plans claiming validated Dolby Vision while the executed remux drops the enhancement layer. - Accept the device-quirks feature flag from either capability location, matching every other dual-location feature check. - Treat legacy hdr_unknown rows as HDR10 for HDR10-capable clients with a degradation warning instead of leaving them unplayable under v3. - Honor bandwidth_cap_kbps as a hard ceiling in every quality mode and wire the previously dead Metered signal into conservative auto rungs. - Degrade to the validated source-quality route instead of a terminal when only an implicit quality reduction demanded an unsupported transcode; explicit user-selected rungs keep terminal behavior. - Bound inner capability lists and strings; compare attempt keys exactly instead of case-folded; make ParseTrackIDV3 strict about canonical numerics; accept dvdsub/pgssub/dvbsub aliases and stop promising burn-in for unknown subtitle codecs; probe every h264 encoder rather than requiring libx264; normalize the file-level bitrate fallback. - Evaluate subtitle renderability against the engine each candidate route executes on, not always media3_direct. - Pin the with-quirks attempt-key preimage arity in the cross-language fixture so the Kotlin client stays in lockstep. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(playback): harden v3 control-plane reliability Review fixes to the v3 session, store, and handler layer: - Bound concurrent replans with a slot semaphore: each replan pins a pooled connection for its advisory lock while issuing further store queries from the same pool, so an unbounded recovery storm could turn every connection into a lock holder and deadlock the server. - Make CompleteReplan a real compare-and-swap (base-revision predicate, ErrReplanSupersededV3) and map BeginReplan insert races to a replay instead of a raw unique violation. - Fingerprint start requests (request_digest column): an attempt ID reused with different input is now a 409-style conflict rather than a silent replay, and both replay paths check session liveness so dead sessions surface as retryable terminals. - Pre-delete expired attempt rows on SaveAttempt so a retry during the cleanup window cannot wedge on an unreachable conflict. - Align the in-memory store's semantics with Postgres and add DB-backed planstore tests (SILO_TEST_DATABASE_URL), including a regression test inserting every route-event name against the real CHECK constraint. - Session manager: v3 route-set updates own RemuxDVMode outright so a replan onto an SDR source clears a stale strip mode; replacement reservations survive unrelated legacy stream updates; replacement admission excludes the replaced session explicitly instead of decrementing totals it may no longer be part of; the admission CAS loop is bounded and decider errors are logged. - Map transient store failures to 500s instead of terminal 404/403s; authorize route events via identity-only projections after the rate limiter; keep sanitized diagnostics deterministic. - Merge the server-computed durable plan key into replan exclusions so unreproducible client history cannot re-select the failed route. - Remap tracks only when the effective edition changes (a same-file replan no longer switches audio to a lookalike track) and remap ID-only subtitle selections on edition fallback. - Cache the v3/shadow feature flags for five seconds instead of one settings SELECT per playback request; stop remote transports best-effort when the start call times out; carry dvm/tid claims and the transport-scoped job identity through the legacy audio-change re-mint; index playback_route_events(received_at) for the retention delete; run store maintenance for DB-less deployments too. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(transcode): reap idle node jobs and gate WebVTT conversion - Add an idle reaper to the transcode node: a job untouched by manifest or segment requests for ten minutes is closed and unregistered. After a v3 replan retires a transport ID, a stale in-flight stream token could resurrect the old job via reconstruct and encode to end-of-file for nobody; jobs waiting on readiness count registration as access and are never reaped mid-wait, and reaping keeps the recipe so a still-valid token reconstructs on the next hit. - Reject bitmap subtitle tracks (PGS) on the .vtt conversion path with 415 before headers are written instead of spawning an ffmpeg command that always fails mid-response, and make the extract-format override fall back to source-driven mapping for bitmap codecs. - Drain error bodies on non-202 node responses so the HTTP transport can reuse connections. - Pin the transcode-dir cleanup separator-boundary semantics with a regression test (a session ID sharing another's prefix must not retain foreign directories). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(playback): close v3 planner policy gaps from review - Clamp the final transcode bitrate to bandwidth_cap_kbps: the ladder has no rung below 480p/1500kbps, so lower caps were silently exceeded even though the cap is documented as a hard delivery ceiling. - Treat video-only media as audio-compatible instead of forcing an AAC conversion (or an audio_conversion_unsupported terminal) onto a file with no audio stream. Tracks whose codec failed to probe keep the gate. - Only promise a bitmap subtitle sidecar for embedded PGS with an engine that renders embedded bitmap: external/downloaded bitmap and embedded DVD/DVB published artifact URLs that always failed at fetch. They now fall through to burn-in or its terminal. - Accept client_video_transformations_v1 from either client_features or the nested context when validating client-executor transformations, matching the planner's dual-source reads. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(playback): probe and execute DV remuxes with one ffmpeg binary The v3 transformation registry probed the configured playback.ffmpeg_path while progressive remux execution resolved the process-global discovery path, so a deployment where only one binary carries dovi_rpu could plan a server_dv7_to_hdr10 route and then fail it at stream time. Resolution now goes through a shared ResolveFFmpegPath (configured path first, discovery fallback — the same rule the transcode pipeline already used), the dovi_rpu probe is cached per binary path, and the stream handler and proxy worker pass their configured path into ServeRemuxWithDVMode. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(playback): harden v3 replan identity and control-plane limits - Seed failure-replan track selections from the durable current plan before overlaying the request: after an alternate-version fallback the normalized request still carries requested-edition track IDs, so a replan omitting unchanged tracks was rejected as a track/file mismatch. - Remap ID-only audio selections across edition changes (parse the ID to an index like the subtitle remap already does) instead of leaving a stale file-bound ID to fail validation. - Release the node planner reservation when a prepared remote transport rolls back after the node accepted the job; repeated failed starts could otherwise pin max-job/bandwidth budgets for the full reservation age. - Size the replan semaphore below the PostgreSQL pool via a store capacity advisor: with max_connections at or below the fixed bound, advisory-lock holders could starve the inner store queries they need to finish. - Contain shadow-planner panics with a recover boundary; it runs on a bare goroutine where an escaped panic kills the process for what is telemetry-only work. Document why the memory store's session lock is deliberately a no-op. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(transcode): serialize node job teardown against reconstructs - Look up and touch manifest/segment sessions in one critical section so the idle reaper cannot unregister a job between the lookup and its liveness refresh. - Re-validate each reap candidate under the per-session lifecycle lock before closing it: Close removes the output directory, and without the lock it could race a token reconstruct and wipe the segments the fresh ffmpeg is writing. - Take the lifecycle lock in handleStop so a stop racing a RequireReady start's readiness wait blocks until registration and tears the job down, instead of 404ing and orphaning the ffmpeg until the reaper. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com> |
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203a18ae83 |
feat(observability): OpenTelemetry logs+traces with secret redaction and slog standardization (#290)
* feat(observability): OpenTelemetry logs+traces with secret redaction Part of #265. Adds opt-in OpenTelemetry (logs + traces) alongside the existing stderr + opslog pipeline, plus secret redaction on all sinks. Default-off: with no OTEL_* / SILO_OTEL_ENABLED config, behavior is unchanged. Bootstrap (internal/telemetry): - Setup() builds one shared resource, a TracerProvider (parent-based trace-id ratio sampler), a LoggerProvider, and the W3C TraceContext+Baggage propagator from env. It installs NO MeterProvider — metrics stay on Prometheus, and the built-in no-op global MeterProvider keeps the trace instrumentation libs from double-emitting. Shutdown is deferred with a flush timeout. - Logs are bridged via otelslog fan-out (slog.MultiHandler), level-gated by the shared LevelVar and best-effort so a failing collector can't break the console or DB branches. stderr + opslog stay untouched. Secret redaction (internal/logredact): - A slog.Handler masks secret-keyed attributes (password, token, api_key, authorization, cookie, ...) — including .With-bound attrs, nested groups, secret-keyed group subtrees, and values behind a LogValuer — on the console and OTLP sinks, with a no-op fast path when a record has no secret keys. opslog.shouldRedact delegates to logredact.SecretKey so all sinks share one marker list. Rotation is infra-managed (no custom file sink): container runtime for stderr, collector/backend for OTLP, opslog partition-pruning for the DB. Documented in docs/architecture/observability.md. Verification: go build ./..., go vet, gofmt -l — clean; go test ./internal/telemetry/ ./internal/logredact/ -race pass. AI-use disclosure: implemented with AI assistance (Claude Code), including adversarial reviews that hardened the bootstrap and fixed two redaction leak paths; reviewed by the author. * refactor(observability): slog context+component sweep, sloglint gate (phase 3) Part of #265. Builds on the OTel bootstrap + redaction commit. Standardizes every log call site onto the context-carrying slog variants so records correlate with the active OpenTelemetry trace, and locks the standard in with a machine gate so future code (human- or AI-authored) can't drift back. - Call-site sweep: converted the remaining slog.<Level>(...) calls to the slog.<Level>Context(ctx, ...) form wherever a context.Context is in scope (background/init calls with no ctx are left as-is), across 183 files. Applied via a type-aware AST codemod. Log levels and message strings are preserved verbatim; a component attr (canonical per-package name) is added to direct package-level slog calls. Bound-logger calls keep their existing .With bindings. The main.go and telemetry package conversions rode with their file in the previous commit to keep each file within a single commit. - Enforcement (.golangci.yml): enable sloglint with context=scope, static-msg, key-naming-case=snake, no-mixed-args. After the sweep all four report zero violations repo-wide (tests included), so make lint / CI now blocks any regression to the non-context form. The gate ships with the sweep because it cannot be green until the legacy sites are converted. Metrics remain on Prometheus; no behavior change to /metrics or Grafana. Verification: go build ./..., go vet ./..., gofmt -l — clean; sloglint (all 4 rules) 0 violations repo-wide; log levels verified unchanged. AI-use disclosure: implemented with AI assistance (Claude Code), including the codemod; reviewed by the author. * fix(observability): honor per-signal OTLP protocol and secret WithGroup names Two Codex review findings on PR #290: - telemetry: OTEL_EXPORTER_OTLP_{TRACES,LOGS}_PROTOCOL now override the generic OTEL_EXPORTER_OTLP_PROTOCOL per signal, so mixed collector setups (e.g. HTTP logs + gRPC traces) build the right exporter. - logredact: entering a group whose name is secret-bearing (e.g. WithGroup("authorization")) now masks every leaf in that subtree, matching how slog.Group("authorization", ...) is masked as a whole. * fix(observability): address review feedback on telemetry bootstrap - Telemetry setup failure no longer kills boot: Setup returns usable no-op providers alongside the error and main logs and continues with telemetry disabled, honoring the best-effort contract. - Honor OTEL_TRACES_SAMPLER (always_on/off, traceidratio, parentbased_* variants); unsupported values fall back to parentbased_traceidratio. - Attach node identity as semconv service.instance.id instead of the non-semconv node.name. - Rename opslog retention-scope log attrs to target_component/target_level so they no longer collide with the canonical component routing key, and tag those lines with component=opslog. - Fix stale levelGated comment casing; use WarnContext in the telemetry shutdown defer; document the LogValuer double-resolve on the redaction slow path. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Quick <31828688+Quick104@users.noreply.github.com> Co-authored-by: Claude Fable 5 <noreply@anthropic.com> |
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7958f0bbf0 |
feat(nodepool): node groups, per-node caps, and local transcode fallback control (#126)
* feat(nodepool): node groups, per-node caps, and local transcode fallback control Group co-located transcode and proxy nodes so transcoded streams are served by a proxy on the same host/LAN instead of bouncing across the internal network (fixes #93): - New nodepool.Planner is the single selection entry point: it picks the transcode node and its group's proxy together (round-robin within the group), replacing the independent ProxyPool.Pick/TranscodePool.Acquire calls scattered across the native and jellycompat handlers, and absorbs the duplicated soft-affinity pick logic. - A group is only eligible while all of its enabled members are healthy; ungrouped nodes keep the historical behavior. - New per-node max_jobs cap (transcodes for transcode nodes, streams for proxies; NULL = unlimited), enforced via health-reported job counts plus short-lived reservations that expire once fresher health data arrives. Proxy health now reports real stream counts, including HLS sessions via idle-expiry tracking. - New playback.local_transcode_fallback setting (default on) lets admins refuse API-server transcoding when no eligible node exists. - Health checks now publish updated node copies under the pool lock instead of mutating shared structs in place, fixing a data race. - Admin UI: group + cap fields on the node form, group/cap columns, and the new fallback toggle in playback settings. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * feat(nodepool): proxy bandwidth measurement and egress caps Proxy nodes now measure their stream egress (rolling 60s average over everything under /stream) and report it via the health endpoint. A new per-proxy max_bandwidth_kbps cap lets the planner route new streams away from saturated proxies: - Admission combines the measured egress with the estimated bitrate of the new stream (transcode target bitrate, or source bitrate for direct play/remux) so a stream is only admitted where it fits. - Recently admitted streams are bridged as bandwidth reservations for the meter window, since the rolling average only converges on a new stream's rate gradually. - A group whose proxies lack bandwidth headroom is treated as full: its transcode nodes are skipped, same as the job cap. - Admin UI: per-proxy "Max Egress Bandwidth (Mbps)" field and a live egress column; manual health checks return the measured rate. Active streams are never interrupted - the cap only gates new admissions. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * perf(playback): trim node-mode time-to-stream-start Distributed playback paid several avoidable costs before the first frame that integrated mode doesn't have. This trims the safe ones: - Web player preconnects to the stream origin (the proxy node) as soon as /playback/start returns, overlapping DNS/TCP/TLS handshakes with the transcode dispatch instead of paying them at the first manifest fetch. - The transcode node no longer blocks its 202 on monitoring work: the Redis session-track write moves off the request path, and a replaced session's segment directory is renamed aside and deleted in the background instead of synchronously (RemoveAll of a long session can take seconds on slow disks during quality switches). - The proxy's node-facing HTTP client gets a tuned transport: a larger idle-connection pool (Go's default of 2 per host causes connection churn and TLS re-handshakes when many viewers stream through one proxy->node pair) and a response-header timeout so a hung transcode node can no longer hang client requests indefinitely. - jellycompat's remote transcode dispatch gains the same 10s timeout the native path has had; an unreachable node previously hung the compat manifest request until the OS gave up. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com> |
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Silo Server Migration
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c085b12fd1 | Initial Silo migration |