A SURVEY OF QUALITY OF SERVICE IN MULTI-TIER WEB APPLICATIONS

• Mohamed Ghetas,
• Chan Huah Yong,
• Putra Sumari,

Vol. 10, No. 1, January 30, 2016
10.3837/tiis.2016.01.014, Download Paper (Free):

• Quality of Service
• Cloud computing
• resource management
• Multi-tier Application

Abstract

Modern web services have been broadly deployed on the Internet. Most of these services use multi-tier architecture for flexible scaling and software reusability. However, managing the performance of multi-tier web services under dynamic and unpredictable workload, and different resource demands in each tier is a critical problem for a service provider. When offering quality of service assurance with least resource usage costs, web service providers should adopt self-adaptive resource provisioning in each tier. Recently, a number of rule- and model-based approaches have been designed for dynamic resource management in virtualized data centers. This survey investigates the challenges of resource provisioning and provides a competing assessment on the existing approaches. After the evaluation of their benefits and drawbacks, the new research direction to improve the efficiency of resource management and recommendations are introduced.

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