58 Tech

Mar 8, 2021 · Fundamentals

Real‑Time Inverted Index Update Techniques in the 58 Search Engine

This article explains how the 58 search engine achieves millisecond‑level real‑time inverted‑index updates by redesigning the underlying data structures, combining static and dynamic indexing, using a chain‑array hybrid, segment merging strategies, and lock‑free read‑write concurrency while maintaining search performance.