RPC Chains: Efficient Client-Server Communication in Geodistributed Systems

We propose the RPC chain, a simple but powerful communication primitive that allows an application to reduce the performance effects of wide-area links on enterprise and data center applications that span multiple sites. This primitive chains together multiple RPC invocations so that the computation can flow from one server to the next without involving the client every time. We demonstrate that RPC chains can significantly reduce end-to-end latency and network bandwidth in a storage application and a web application.