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E-commerce systems are typically QoS-sensitive, so QoS-oriented tunings of e-commerce servers are very important for such systems. However, existing e-commerce benchmarks are insufficient for supporting QoS-oriented tunings, because some critical QoS features of e-commerce systems cannot be precisely evaluated by them. One example of these features is the integrality of service, which is usually expressed...
Runtime monitoring of Web service compositions with WS-BPEL has been widely acknowledged as a significant approach to understand and guarantee the quality of services. However, most existing monitoring technologies only track patterns related to the execution of an individual process. As a result, the possible inconsistency failure caused by implicit interactions among concurrent process instances...
High dynamic computing environment makes quality of service (QoS) guarantee more important to distributed system. It should possess self-tuning capability reacting to external environment variation such as fluctuating workload. This paper proposed an adaptive self- configuration framework for EJB platform, which can automatically tune configuration parameters to preserve QoS when workload changed...
Overload management is of vital importance in wide-area publish/subscribe systems, yet current solutions are best-effort. In this paper, we present an admission control scheme for overload management in large-scale and scalable content-based publish/subscribe systems. We analyze the stumbling block for implementing admission control in publish/subscribe systems, and point out how it differs from admission...
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