# Resilience

> The degree to which a system contains failures, stays stable under stress and recovers.

Record: `architecture:resilience`
Kind: quality-attribute
Layer: [Correctness Core](https://banes-lab.com/records/layer/correctness-core.md)
Severity: contextual
Scope: service, system, infrastructure
Canonical: https://banes-lab.com/ontology#architecture-resilience

Listed in [Architecture principles](https://banes-lab.com/api/records/architecture.md), after [Fault Tolerance](https://banes-lab.com/records/architecture/fault-tolerance.md) and before [Robustness Principle](https://banes-lab.com/records/architecture/robustness-principle.md).

## Repair

- Refactored by: Add Circuit Breaker, Bulkhead, [Retry](https://banes-lab.com/records/lexicon/retry.md), [Timeout](https://banes-lab.com/records/lexicon/timeout.md)
- Detected by: [failure propagation](https://banes-lab.com/records/lexicon/failure-propagation.md), lack of isolation
- Violated by: cascading failures
- Measured by: MTTR, error budget, [availability](https://banes-lab.com/records/lexicon/availability.md)
- Enforced by: [chaos testing](https://banes-lab.com/records/reasoning/technique-chaos-testing.md), SLO gates

## Requires

- [Fault Tolerance](https://banes-lab.com/records/architecture/fault-tolerance.md)
- [Observability](https://banes-lab.com/records/architecture/observability.md)

## Reinforces

- [Self-Healing Architecture](https://banes-lab.com/records/architecture/self-healing-architecture.md)
- [Recovery](https://banes-lab.com/records/lexicon/recovery.md)

## Enables

- [Stability Under Stress](https://banes-lab.com/records/lexicon/stability-under-stress.md)

## Conflicts with

- [Brittle Architecture](https://banes-lab.com/records/lexicon/brittle-architecture.md)

## In tension with

- [Complexity](https://banes-lab.com/records/lexicon/complexity.md)

## Tensions

- [Resilience / Complexity](https://banes-lab.com/records/tension/complexity-resilience.md)

## Severity

- [contextual](https://banes-lab.com/records/vocabulary/severity-contextual.md)

## Category

- [Error Handling / Resilience](https://banes-lab.com/records/architecture-category/error-handling-resilience.md)

## Reinforced by

- [Service Discovery](https://banes-lab.com/records/architecture/service-discovery.md)
- [Decentralization](https://banes-lab.com/records/architecture/decentralization.md)
- [Autonomy](https://banes-lab.com/records/architecture/autonomy.md)
- [Message Queue](https://banes-lab.com/records/architecture/message-queue.md)
- [Asynchronous Communication](https://banes-lab.com/records/architecture/asynchronous-communication.md)
- [Compensating Transaction](https://banes-lab.com/records/architecture/compensating-transaction.md)
- [Fail Safe](https://banes-lab.com/records/architecture/fail-safe.md)
- [Error Handling](https://banes-lab.com/records/architecture/error-handling.md)
- [Error Boundaries](https://banes-lab.com/records/architecture/error-boundaries.md)
- [Backpressure](https://banes-lab.com/records/architecture/backpressure.md)
- [Statelessness](https://banes-lab.com/records/architecture/statelessness.md)
- [Rollback](https://banes-lab.com/records/architecture/rollback.md)

## Linked from

- [The canon is grouped twice](https://banes-lab.com/software-architecture/principles/the-canon-is-grouped-twice.md)
- [Runtime Discovery / Dynamic Binding](https://banes-lab.com/ontology/principles/architecture-category-runtime-discovery-dynamic-binding.md)
- [Control / Coordination / Centralization](https://banes-lab.com/ontology/principles/architecture-category-control-coordination-centralization.md)
- [Correctness / Determinism / Verification](https://banes-lab.com/ontology/principles/architecture-category-correctness-determinism-verification.md)
- [Core Modular Design](https://banes-lab.com/ontology/principles/architecture-category-core-modular-design.md)
- [Event / Messaging / Asynchronous Architecture](https://banes-lab.com/ontology/principles/architecture-category-event-messaging-asynchronous-architecture.md)
- [Error Handling / Resilience](https://banes-lab.com/ontology/principles/architecture-category-error-handling-resilience.md)
- [Observability / Auditability / Traceability](https://banes-lab.com/ontology/principles/architecture-category-observability-auditability-traceability.md)
- [Scalability / Performance / Optimization](https://banes-lab.com/ontology/principles/architecture-category-scalability-performance-optimization.md)
- [Self-Healing / Recovery / Deployment Safety](https://banes-lab.com/ontology/principles/architecture-category-self-healing-recovery-deployment-safety.md)
- [Core Vocabulary](https://banes-lab.com/ontology/lexicon/lexicon-category-core-vocabulary.md)
- [Error Handling / Resilience](https://banes-lab.com/ontology/lexicon/lexicon-category-error-handling-resilience.md)
- [Quality Attributes](https://banes-lab.com/ontology/lexicon/lexicon-category-quality-attributes.md)
- [Severity levels](https://banes-lab.com/ontology/schema/the-vocabulary-severity.md)
- [The resolutions](https://banes-lab.com/ontology/schema/the-resolutions.md)