Journal of Information Technology Services (한국IT서비스학회지)

Korea Society of IT Services (한국IT서비스학회)
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Service Deployment and Priority Optimization for Multiple Service-Oriented Applications in the Cloud

클라우드에서 서비스 지향 응용을 위한 최적 서비스 배치와 우선순위 결정 기법

  • 김길환 (상명대학교 경영공학과) ;
  • 금창섭 (한국전자통신연구원 통신인터넷연구소) ;
  • 배현주 (한국전자통신연구원 통신인터넷연구소)
  • Received : 2014.01.24
  • Accepted : 2014.09.12
  • Published : 2014.09.30
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Abstract

This paper considers service deployment and priority optimization for multiple service-oriented applications sharing reusable services, which are deployed as multiple instances in the cloud. In order to handle variations in the workloads of the multiple applications, service instances of the individual reusable services are dynamically provisioned in the cloud. Also service priorities for each application in a particular reusable service are dynamically adjusted. In this paper, we propose an analytic performance model, based on a queueing network model, to predict the expected sojourn times of multiple service-oriented applications, given the number of service instances and priority disciplines in individual reusable services. We also propose a simple heuristic algorithm to search an optimal number of service instances in the cloud and service priority disciplines for each application in individual reusable services. A numerical example is also presented to demonstrate the applicability of the proposed performance model and algorithm to the proposed optimal decision problem.

Keywords

References

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