https://yaooqinn.github.io/tags/gluten/ Recent content in Gluten on Kent Yao Hugo -- 0.157.0 en-us Thu, 02 Apr 2026 00:00:00 +0000 https://yaooqinn.github.io/posts/spark/sql-metrics-part5-gluten-internals/ Thu, 02 Apr 2026 00:00:00 +0000 https://yaooqinn.github.io/posts/spark/sql-metrics-part5-gluten-internals/ Part 5 of the SQL Metrics deep dive. How Gluten maps Substrait plan nodes to Velox operators, aggregates metrics across pipelines, walks the MetricsUpdaterTree, and handles aggregation sub-phases and shuffle metrics. https://yaooqinn.github.io/posts/spark/sql-metrics-part6-in-action/ Thu, 02 Apr 2026 00:00:00 +0000 https://yaooqinn.github.io/posts/spark/sql-metrics-part6-in-action/ Part 6 of the SQL Metrics series. A real-world walkthrough of TPC-DS q99 at SF10000 with Gluten/Velox, reading every metric to understand what happened during execution. https://yaooqinn.github.io/posts/spark/sql-metrics-part4-gluten/ Wed, 01 Apr 2026 00:00:00 +0000 https://yaooqinn.github.io/posts/spark/sql-metrics-part4-gluten/ Part 4 of the SQL Metrics deep dive. How Apache Gluten bridges native Velox/ClickHouse metrics back to Spark’s SQL Metrics framework, adding 60+ metrics that vanilla Spark doesn’t have.