vivo Internet Technology

Nov 12, 2025 · Big Data

How Vivo Solved Real‑Time Feature Concatenation with RocksDB and Flink

This article explains the evolution of Vivo's real‑time recommendation feature‑concatenation architecture, compares hour‑level, Redis‑streaming and RocksDB state‑backend solutions, and details the memory, performance, startup and HDFS RPC problems encountered along with the concrete fixes applied.