Model-based resource provisioning in a web service utility

  • Authors:
  • Ronald P. Doyle;Jeffrey S. Chase;Omer M. Asad;Wei Jin;Amin M. Vahdat

  • Affiliations:
  • IBM and Duke Computer Science;Department of Computer Science, Duke University;Sun Microsystems and Department of Computer Science, Duke University;Department of Computer Science, Duke University;Department of Computer Science, Duke University

  • Venue:
  • USITS'03 Proceedings of the 4th conference on USENIX Symposium on Internet Technologies and Systems - Volume 4
  • Year:
  • 2003

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Abstract

Internet service utilities host multiple server applications on a shared server cluster. A key challenge for these systems is to provision shared resources on demand to meet service quality targets at least cost. This paper presents a new approach to utility resource management focusing on coordinated provisioning of memory and storage resources. Our approach is model-based: it incorporates internal models of service behavior to predict the value of candidate resource allotments under changing load. The model-based approach enables the system to achieve important resource management goals, including differentiated service quality, performance isolation, storage-aware caching, and proactive allocation of surplus resources to meet performance goals. Experimental results with a prototype demonstrate model-based dynamic provisioning under Web workloads with static content.