# Statelessness or Shared State Strategy

> A decision to make instances stateless or externalize state to a shared store, so any instance can serve any request.

Record: `lexicon:statelessness-or-shared-state-strategy`
Kind: approach
Layer: [Performance Core](https://banes-lab.com/records/layer/performance-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-statelessness-or-shared-state-strategy

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Space Complexity Awareness](https://banes-lab.com/records/lexicon/space-complexity-awareness.md) and before [Abuse/Overload Protection](https://banes-lab.com/records/lexicon/abuse-overload-protection.md).

## Category

- [Scalability / Performance / Optimization](https://banes-lab.com/records/lexicon-category/scalability-performance-optimization.md)

## Required by

- [Horizontal Scaling](https://banes-lab.com/records/architecture/horizontal-scaling.md)

## Linked from

- [Scalability / Performance / Optimization](https://banes-lab.com/ontology/principles/architecture-category-scalability-performance-optimization.md)