Glossary term
What is SSTable (Sorted String Table)?
SSTable stands for Sorted String Table.
An immutable, sorted file in LSM storage. Example: Written when the in-memory table fills up.
Learn it properly · System DesignLesson 22: Database Indexing: B-Trees and LSM-TreesWhy an index turns 812 ms into 0.09 ms, and why it slows every write. How B-trees keep sorted pages updated in place, how LSM-trees append and compact for huge write rates, and how to design indexes from real queries.