Sep 9, 2026 · Interview Experience

Spring Cloud LoadBalancer: 8 Classic Interview Questions with Deep-Dive Answers

This article presents eight detailed interview questions covering Spring Cloud LoadBalancer internals, including Ribbon migration reasons, client vs server load balancing, OpenFeign call chain, LoadBalancerClientFactory child contexts, ServiceInstanceListSupplier decorator chain, smooth weighted round-robin algorithm, consistent hashing with virtual nodes, and troubleshooting Connection refused errors after instance shutdown.

NacosOpenFeignRibbon

0 likes · 24 min read

Spring Cloud LoadBalancer: 8 Classic Interview Questions with Deep-Dive Answers

IT Services Circle

Aug 29, 2025 · Backend Development

Why Smooth Weighted Round Robin Works: The Math Behind Balanced Load Distribution

This article explains the smooth weighted round robin algorithm, contrasts it with the non‑smooth version, walks through step‑by‑step examples for a 5:1:1 server weight scenario, and provides mathematical proofs of both weight correctness and smoothness, including references to the original source.

algorithmdistributed systemsload balancing

0 likes · 15 min read

Why Smooth Weighted Round Robin Works: The Math Behind Balanced Load Distribution