Survey of Multi-cloud Workflow Scheduling

Abstract

Traditional cloud providers provide services solely for users,which has problems of insufficient local cloud resources and high expansion costs.While the emerging multi-cloud combines services of cloud providers with different geographical locations providing users with more choices and has gradually become a research hotspot.At the same time,workflow scheduling is one of the key problems in multi-cloud research.Therefore,this paper firstly makes a thorough investigation and analysis on workflow scheduling technology in multi-cloud environment,then compares and classifies the workflow scheduling method inclu-ded.This paper focuses on single objective workflow scheduling optimization problem for cost and completion time,multi-objective optimization workflow scheduling problem for cost and completion time,for response time and cost,for reliability,cost and completion time,and for other multi-objective optimization.Finally,the future research directions of workflow scheduling in the multi-cloud environment are discussed,including uncertain workflow scheduling,joint scheduling optimization of energy consumption and other objectives,scheduling optimization with edge servers,and hybrid scheduling of virtual machine and Serverless platform.

Keywords

• multi-cloud|workflow|scheduling of resources