Technical Case Study of JDV Visual Dashboard Platform for the 618 Promotion

JDV (JingDong Visual) is an internal data visualization platform that provides over 10 templates, 40+ chart components, and drag‑and‑drop screen building, supporting real‑time data switching, linkage refresh, and drill‑down for executive, sales, and R&D scenarios.

During the 618 promotion, JDV powered command‑center, celebration, and PR screens, handling over 80 dashboards, requiring second‑level data updates, cross‑midnight count stops, rapid data adjustments, high stability, and backup screen switching.

Key technical challenges included template caching, view‑tree generation, expression and event parsing, and rendering; solutions involved MCube template management, request isolation, rate limiting, and extensive performance testing.

Innovations comprised request‑state control to pause polling when screens are inactive, a socket‑based heartbeat mechanism for real‑time instance monitoring, and a proxy data‑source that merges identical requests into a single backend query.

Additional tooling such as JDV‑Relay browser plugin, batch component modification, DIFF configuration comparison, and automated screen recording for cross‑midnight verification improved development efficiency and quality assurance.

The project’s lessons emphasized early technical planning, scenario‑specific pre‑plans, monitoring enhancements, and the need to reduce communication overhead and standardize processes for future large‑scale events.