# State Store

> Source: https://sukruyusufkaya.com/en/glossary/state-store
> Updated: 2026-05-13T20:02:13.702Z
> Type: glossary
> Category: veri-muhendisligi-ve-ai-altyapisi
**TLDR:** A persistent or semi-persistent data structure that stores historical context and intermediate computation state during stream processing.

<p>A state store is one of the core components of stateful stream processing. Recent events, user session context, window aggregations, or intermediate results may be held there. Without a properly designed state store, complex stream logic cannot run reliably. This layer must be configured carefully for both performance and recovery behavior.</p>