StarRocks

Apr 1, 2026 · Databases

Inside StarRocks I/O: How Tablets, Fragments, Pipelines, and Morsels Power Parallel Scanning

This article explains the core I/O components of StarRocks—Tablet, Fragment, Pipeline, Morsel, ScanOperator, ChunkSource, ScanTask, and ChunkBuffer—showing how they work together to achieve high‑performance, low‑latency query execution in a compute‑storage separated architecture.