GlobalFlow: A Cross-Region Orchestration Service for Serverless Computing Services

With the development of serverless computing, orchestration of multiple serverless computing services is highly desired by many cloud-based applications. In this paper, we present GlobalFlow, an orchestration service that can coordinate various geographically distributed but logically dependent serverless computing services through copy-based or connector-based strategy. Through preliminary evaluation, the proposed service has demonstrated its effectiveness in orchestrating various AWS Lambda functions in different regions without significant overhead.