UnifiedStore

UnifiedStore is a client library layered on top of cloud storage services and presents a single storage view for hierarchical cloud storage. With simple configuration changes, UnifiedStore can switch to different underlying cloud storage services. With its novel client-side consistent caching protocol, it can also add a caching layer using another storage service that is fast but too expensive for storing all data. Distributed transactions spanning multiple underlying storage services are also supported through its novel 1-RTT client-side transaction protocol. This mix-and-match ability of UnifiedStore enables applications to have best performance at minimum cost.