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This article explains how Huawei Cloud leverages Apache Hudi and HetuEngine (Presto) to improve point‑query performance on Lakehouse architectures through data layout optimization, file‑skipping techniques, metadata tables, and extensive benchmark results demonstrating multi‑fold speedups.
Bilibili’s new lake‑house platform, built on Trino and Iceberg, replaces Hive‑based pipelines by ingesting logs and DB data into Iceberg tables, applying advanced sorting, Z‑order/Hilbert clustering, bitmap and bloom indexes, virtual join columns and pre‑aggregation, enabling 70 000 daily queries on 2 PB with average scans of 2 GB and sub‑2‑second response times.
This article details Bilibili's evolution of its offline computing platform from Hadoop‑based Hive to Spark, describing the migration process, automated SQL conversion, result verification, stability and performance enhancements, meta‑store optimizations, and future work on remote shuffle and vectorized execution.
This article explains how Apache Iceberg’s DataSkipping technique can lose efficiency when many filter columns are used, and presents a data‑organization optimization using space‑filling curves and Z‑Order to improve query I/O, details the OPTIMIZE implementation, and shares performance benchmark results and future plans.
This talk explains how Apache Iceberg’s DataSkipping can lose efficiency with many filter columns, and presents a data‑organization redesign using space‑filling curves and Z‑Order to improve query I/O, detailing the OPTIMIZE syntax, implementation steps, performance benchmarks, and future roadmap.
This article explores how data clustering techniques such as linear order, Z‑order, and Hilbert‑curve ordering can be applied in Apache Spark and Apache Iceberg to achieve efficient data skipping on terabyte‑scale tables, dramatically reducing file scans and enabling sub‑second interactive analytics for multi‑dimensional queries.