An internal key-value storage engine at Airbnb designed to bridge offline and online workloads. The system was rearchitected from an initial version (v1) to a NewSQL-based backend (v2) to support real-time streaming, bulk ingestion, dynamic range sharding, and Kubernetes-native deployment.
- Website
- https://medium.com/airbnb-engineering/building-a-next-generation-key-value-store-at-airbnb-0de8465ba354[01]
- Developer
- Country of Origin
- US
- Start Year
- 2022
- Project Type
- Internal / Non-Public
- License
- Proprietary
An internal key-value storage engine at Airbnb designed to bridge offline and online workloads. The system was rearchitected from an initial version (v1) to a NewSQL-based backend (v2) to support real-time streaming, bulk ingestion, dynamic range sharding, and Kubernetes-native deployment.
History
First publicly discussed in a 2022 blog post as Mussel v1. The system was later completely rearchitected into Mussel v2, replacing the original storage backend with a NewSQL architecture to address operational complexity, capacity hotspots, and consistency requirements. V2 has been running in production since approximately 2024.