# Session Affinity

> Routing all of a client's requests to the same server instance so its session state stays local.

Record: `lexicon:session-affinity`
Kind: technique
Layer: [Performance Core](https://banes-lab.com/records/layer/performance-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-session-affinity

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Rebalancing Complexity](https://banes-lab.com/records/lexicon/rebalancing-complexity.md) and before [State Access Latency](https://banes-lab.com/records/lexicon/state-access-latency.md).

## Category

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

## In tension with

- [Load Balancing](https://banes-lab.com/records/architecture/load-balancing.md)
- [Load Balancing / Session Affinity](https://banes-lab.com/records/tension/load-balancing-session-affinity.md)

## Linked from

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