Juq-952-rm-javhd.today02-24-01 Min May 2026

| Category | Requirement | |----------|-------------| | Security | All traffic TLS‑encrypted. JWT expiration ≤ 15 min. | | Observability | Metrics exported to Prometheus (javhd_daily_min_requests_total, javhd_daily_min_latency_seconds). | | Reliability | 99.9 % uptime SLA for the dashboard service. | | Internationalization | UI strings externalized; English default, ready for i18n. | | Accessibility | WCAG 2.1 AA – color contrast, keyboard navigation, ARIA labels. |

By mid‑2022 we started seeing a pattern: JUQ-952-rm-javhd.today02-24-01 Min

A series of internal performance reviews (see PR‑JAVHD‑07 and PR‑JAVHD‑12) concluded that we should deprecate the Java‑only renderer in favor of a native‑first pipeline built on the new RenderX C++ library we were already using for other products. By mid‑2022 we started seeing a pattern:

That decision birthed the “rm‑javhd” ticket. ARIA labels. |

| Metric | Target | Strategy | |--------|--------|----------| | Query latency (full 24 h) | ≤ 200 ms | TimescaleDB hypertable + materialized view. | | WebSocket throughput | 1 440 updates/min per client | Push only changed minutes (diff). | | CPU overhead | ≤ 1 % of DB node | Pre‑aggregate on ingest, avoid heavy SELECTs. | | Cache | 5 min TTL on static assets | CDN + Service‑Worker offline fallback for UI. |