# Global Shared State

> A single mutable state shared across all workers, forcing coordination and preventing independent scaling.

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

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Full Materialization](https://banes-lab.com/records/lexicon/full-materialization.md) and before [Guess-Based Capacity](https://banes-lab.com/records/lexicon/guess-based-capacity.md).

## Category

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

## Negated by

- [Partitioning](https://banes-lab.com/records/architecture/partitioning.md)

## Linked from

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