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Dec 8, 2025 · Backend Development

How Netflix Ribbon Implements Client‑Side Load Balancing in Java

This article explains Netflix's open‑source Ribbon client‑side load balancer, detailing how it intercepts @LoadBalanced RestTemplate calls, resolves service names to IPs using various algorithms, and forwards requests via HttpClient, while highlighting its key features such as in‑process balancing, multiple strategies, fault‑tolerance, and protocol support.