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Towards Dynamic Reconfiguration for QoS Consistent Services Based Applications

  • Yuyu Yin
  • Ying Li
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7636)

Abstract

Original overall QoS(quality of service) constraints of services based applications may be violated due to failed services or QoS degradation of component services. Although some methods have been proposed to repair failed services and achieve original overall QoS, few works focuses on recovery of services based applications from QoS degradation of component services. In order to provide QoS consistent service based applications, the paper presents a QoS driven dynamic reconfiguration method. The key to the method lies in replacing only some component services rather than recomposing the entire service based applications. In addition, degradation factor is introduced to find the component services which are replaced to most likely achieve original overall QoS constraint. In this way, reconfiguration overheads are lowered and service disruptions may be reduced. The test shows the effectiveness of our approach.

Keywords

Services based application Quality of service dynamic reconfiguration 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Yuyu Yin
    • 1
  • Ying Li
    • 2
  1. 1.College of ComputerHangzhou Dianzi UniversityHangzhouChina
  2. 2.College of Computer Science and TechnologyZhejiang UniversityHangzhouChina

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