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3 Commits

Author SHA1 Message Date
Siavash Sameni
464e95a4bd feat: P3-T4 relay presence registry — gossip fingerprints across relay mesh 
PresenceRegistry tracks who is connected where:
- register_local/unregister_local for directly connected users
- update_peer for fingerprints reported by peer relays
- lookup returns Local or Remote(addr)
- expire_stale removes entries older than timeout

Gossip via probe connections:
- New SignalMessage::PresenceUpdate { fingerprints, relay_addr }
- Probes send local fingerprints every 10s alongside Ping/Pong
- Receiving relay updates its remote presence table

HTTP API on metrics port:
- GET /presence — all known fingerprints + locations
- GET /presence/:fingerprint — single lookup
- GET /peers — peer relays + their connected users

Wired into relay main:
- Registry created at startup
- register_local after auth+handshake
- unregister_local on disconnect
- Passed to probe mesh and metrics server

Also marks FC-10 as DONE in integration tracker.

48 relay tests + 42 proto tests passing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-29 17:36:55 +04:00
Siavash Sameni
a64b79d953 feat: probe mesh mode + Grafana dashboard (T5-S6/S7) — completes T5 
WZP-P2-T5-S6: Probe mesh mode
- ProbeMesh coordinator: wraps multiple ProbeRunners, spawns all concurrently
- mesh_summary(): scans registry, formats human-readable health table
- /mesh HTTP endpoint on metrics port alongside /metrics
- --probe-mesh flag, --mesh-status for CLI diagnostics
- Replaces individual probe spawn loop with ProbeMesh::run_all()
- 4 tests: mesh creation, empty/populated summary, zero targets

WZP-P2-T5-S7: Grafana dashboard
- docs/grafana-dashboard.json — importable directly into Grafana
- Row 1: Relay Health (sessions, rooms, packets/s, bytes/s, auth, handshake)
- Row 2: Call Quality (buffer depth, loss%, RTT, underruns per session)
- Row 3: Inter-Relay Mesh (RTT heatmap, loss, jitter, probe up/down)
- Row 4: Web Bridge (connections, frames bridged, auth failures, latency)
- Datasource variable ${DS_PROMETHEUS}, auto-refresh 10s
- Color thresholds: loss 2%/5%, RTT 100ms/300ms, probe up=green/down=red

T5 Telemetry & Observability is now COMPLETE (all 7 subtasks).
235 tests passing across all crates.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-28 13:18:50 +04:00
Siavash Sameni
216ebf4a25 feat: per-session metrics + inter-relay health probe (T5-S2/S5) 
WZP-P2-T5-S2: Per-session Prometheus metrics
- 5 new per-session gauges/counters: buffer_depth, loss_pct, rtt_ms,
  underruns, overruns — all labeled by session_id
- update_session_quality() reads QualityReport from packet headers
- update_session_buffer() tracks jitter buffer state per session
- remove_session_metrics() cleans up labels on disconnect
- Delta-aware counter increments avoid double-counting
- 2 tests: session_quality_update, session_metrics_cleanup

WZP-P2-T5-S5: Inter-relay health probe
- New probe.rs: ProbeConfig, ProbeMetrics, SlidingWindow, ProbeRunner
- --probe <addr> flag (repeatable) spawns background probe per target
- Sends Ping/s over QUIC, receives Pong, computes RTT/loss/jitter
- SlidingWindow(60): tracks last 60 pings, loss = missed pongs,
  jitter = std deviation of RTT
- Prometheus gauges: wzp_probe_rtt_ms, loss_pct, jitter_ms, up
  with target label
- Probe connections use SNI "_probe" — relay responds with Pong loop,
  skipping auth/handshake
- Auto-reconnect with 5s backoff on disconnect
- 6 tests: metrics_register, rtt/loss/jitter calculation,
  window eviction, empty edge cases

231 tests passing across all crates.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-28 13:09:52 +04:00