ReRoute: A Consistent Serverless Map Application Running Near Users for Lower Latencies

Abstract

Map applications, which require low-latency responses for a seamless user global experience are well-suited for cloud deployment. However, their stateful nature and the need for strong consistency present significant challenges in fully leveraging the low-latency advantages of running computations at edge locations, or data centers near users. To overcome these limitations, we introduce ReRoute, a serverless, cloud-based map application that integrates Radical, a system designed to preserve consistency guarantees from primary data centers while enabling reduced latencies at edge locations. Our evaluation demonstrates that integrating with Radical substantially lowers median end-to-end latency, particularly for clients near edge locations, highlighting its potential to enhance the performance of map applications.