# Split-Brain Coordination

> Two nodes both believing they are leader and acting independently, corrupting shared state.

Record: `lexicon:split-brain-coordination`
Kind: anti-pattern
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-split-brain-coordination

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Scattered Configuration](https://banes-lab.com/records/lexicon/scattered-configuration.md) and before [Agreed Single Value Across Nodes](https://banes-lab.com/records/lexicon/agreed-single-value-across-nodes.md).

## Category

- [Control / Coordination / Centralization](https://banes-lab.com/records/lexicon-category/control-coordination-centralization.md)

## Negated by

- [Leader Election](https://banes-lab.com/records/architecture/leader-election.md)

## Linked from

- [Control / Coordination / Centralization](https://banes-lab.com/ontology/principles/architecture-category-control-coordination-centralization.md)