Youzan Coder
Apr 1, 2020 · Big Data
Presto Implementation and Practice at YouZan: A Big Data Query Engine Journey
The article outlines Presto’s high‑performance, coordinator‑worker architecture and query flow, describes YouZan’s migration from mixed Hadoop deployment to dedicated low‑latency clusters, details challenges such as small‑file handling and regex backtracking with their fixes, and previews future enhancements like Alluxio integration, session property managers, and Ranger‑based multi‑tenant isolation.
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