Valkey on Jaehyeon Kimhttps://jaehyeon.me/tags/valkey/Recent content in Valkey on Jaehyeon KimHugo -- gohugo.ioenCopyright © 2023-2026 Jaehyeon Kim. All Rights Reserved.Mon, 23 Feb 2026 00:00:00 +0000Productionizing an Online Product Recommender using Event Driven Architecturehttps://jaehyeon.me/blog/2026-02-23-productionize-recommender-with-eda/Mon, 23 Feb 2026 00:00:00 +0000https://jaehyeon.me/blog/2026-02-23-productionize-recommender-with-eda/In Part 1, we built a contextual bandit prototype using Python and Mab2Rec. While effective for testing algorithms locally, a monolithic script cannot handle production scale. Real-world recommendation systems require low-latency inference for users and high-throughput training for model updates.

This post demonstrates how to decouple these concerns using an event-driven architecture with Apache Flink, Kafka, and Valkey.

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