DataFunTalk

Jun 21, 2026 · Big Data

How Zhihu Optimized Spark Jobs with Gluten: A Practical Deep‑Dive

This article details Zhihu's end‑to‑end experience of migrating Spark SQL workloads to the open‑source Gluten framework, covering background performance benchmarks, the architecture of Gluten and Velox, consistency and performance challenges encountered during migration, the concrete fixes applied, and the resulting resource savings and future plans.