SLA-Driven Adaptive Resource Management for Web Applications on a Heterogeneous Compute Cloud

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Provided by: Springer Healthcare
Topic: Cloud
Format: PDF
Current Service-Level Agreements (SLAs) offered by cloud providers make guarantees about quality attributes such as availability. However, although one of the most important quality attributes from the perspective of the users of a cloud-based Web application is its response time, current SLAs do not guarantee response time. Satisfying a maximum average response time guarantee for Web applications is difficult due to unpredictable traffic patterns, but in this paper the authors show how it can be accomplished through dynamic resource allocation in a virtual Web farm.
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