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Using Process Restarts to Improve Dynamic Provisioning

  • Raquel V. Lopes
  • Walfredo Cirne
  • Francisco V. Brasileiro
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3278)

Abstract

Load variations are unexpected perturbations that can degrade performance or even cause unavailability of a system. There are efforts that attempt to dynamically provide resources to accommodate load fluctuations during the execution of applications. However, these efforts do not consider the existence of software faults, whose effects can influence the application behavior and its quality of service, and may mislead a dynamic provisioning system. When trying to tackle both problems simultaneously the fundamental issue to be addressed is how to differentiate a saturated application from a faulty one. The contributions of this paper are threefold. Firstly, we introduce the idea of taking software faults into account when specifying a dynamic provisioning scheme. Secondly, we define a simple algorithm that can be used to distinguish saturated from faulty software. By implementing this algorithm one is able to realize dynamic provisioning with restarts into a full server infrastructure data center. Finally, we implement this algorithm and experimentally demonstrate its efficacy.

Keywords

dynamic provisioning software faults restart n-tier applications 

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Copyright information

© IFIP International Federation for Information Processing 2004

Authors and Affiliations

  • Raquel V. Lopes
    • 1
  • Walfredo Cirne
    • 1
  • Francisco V. Brasileiro
    • 1
  1. 1.Departamento de Sistemas e ComputaçãoUniversidade Federal de Campina Grande, Coordenação de Pós-graduação em Engenharia ElétricaCampina GrandeBrazil

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