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USITS '03 Abstract

Model-Based Resource Provisioning in a Web Service Utility

Ronald P. Doyle, IBM; Jeffrey S. Chase, Omer M. Asad, Wei Jin, and Amin M. Vahdat, Duke University


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.
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Last changed: 10 Nov. 2003 jel
Technical Program
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