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.

I/O ArchitectureMPP databaseMorsel

0 likes · 21 min read

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

Architect

Apr 19, 2017 · Fundamentals

Analysis of Ceph Bluestore Storage Engine Architecture

This article examines Ceph's Bluestore storage engine, describing its raw‑device management, metadata structures, write and read I/O processing, allocation strategies, and clone handling, highlighting how it reduces write amplification and optimizes for SSDs compared to the older Filestore.

BlueStoreCephI/O Architecture

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Analysis of Ceph Bluestore Storage Engine Architecture