Technical GlossaryData Engineering and AI Infrastructure
State Store
A persistent or semi-persistent data structure that stores historical context and intermediate computation state during stream processing.
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.
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