Velox

Deep Dive into Spark SQL Metrics (Part 5): Gluten Metrics 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.

Deep Dive into Spark SQL Metrics (Part 4): How Gluten Extends the Metrics System

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.