Cognitive Technology Team

Jan 21, 2024 · Databases

Understanding LSM-Tree (Log-Structured Merge Tree) and Its Storage Mechanisms

This article explains the Log-Structured Merge Tree (LSM-Tree) architecture, describing its immutable storage design, the roles of WAL, MemTable, ImmuTable, and SSTable, and detailing the write workflow, compaction process, and the associated read, space, and write amplification challenges.