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IWQOS
2004
Springer

Yaksha: a self-tuning controller for managing the performance of 3-tiered Web sites

13 years 9 months ago
Yaksha: a self-tuning controller for managing the performance of 3-tiered Web sites
— Managing the performance of multiple-tiered Web sites under high client loads is a critical problem with the advent of dynamic content and database-driven servers on the Internet. This paper presents a control-theoretic approach for admission control in multi-tiered Web sites that both prevents overload and enforces absolute client response times, while still maintaining high throughput under load. We use classical control theoretic techniques to design a Proportional Integral (PI) controller for admission control of client HTTP requests. In addition, we present a processor-sharing model that is used to make the controller self-tuning, so that no parameter setting is required beyond a target response time. Our controller is implemented as a proxy, called Yaksha, which operates by taking simple external measurements of the client response times. Our design is non-invasive and requires minimal operator intervention. We evaluate our techniques experimentally using a 3-tiered dynamic c...
Abhinav Kamra, Vishal Misra, Erich M. Nahum
Added 02 Jul 2010
Updated 02 Jul 2010
Type Conference
Year 2004
Where IWQOS
Authors Abhinav Kamra, Vishal Misra, Erich M. Nahum
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