state optimization

Baidu Tech Salon

Mar 6, 2025 · Big Data

Real-Time Anti-Fraud Streaming System Based on Flink: Architecture, Challenges, and Optimizations

The article describes a Flink‑based real‑time anti‑fraud streaming system that combines a risk‑control platform, configurable YAML‑driven pipelines, and optimized state handling—using early event‑time triggers, micro‑batch caching, and coarse‑grained key reduction—to compute multi‑dimensional features, support rapid strategy updates, simulation filtering, and seamless output to ClickHouse, Hive, and Redis for both instant monitoring and offline analysis.