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首页> 外文期刊>Wuhan University Journal of Natural Sciences >A New Self-Adapting Admission Control Algorithm for Differential Service in Web Clusters
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A New Self-Adapting Admission Control Algorithm for Differential Service in Web Clusters

机译：Web集群中差分服务的自适应接纳控制新算法

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摘要

A new admission control algorithm considering the network self-similar access characteristics is proposed. Taking advantage of the mathematical model of the network traffic admission control which can effectively overcome the self-similar characteristics of the network requests, through the scheduling of the differential service queue based on priority while at the same time taking into account various factors including access characteristics of requests, load information, etc, smoothness of the admission control is ensured by the algorithm proposed in this paper. We design a non-linear self-adapting control algorithm by introducing an exponential admission function, thus overcomes the negative aspects introduced by static threshold parameters. Simulation results show that the scheme proposed in this paper can effectively improve the resource utilization of the clusters, while at the same time protecting the service with high priority. Our simulation results also show that this algorithm can improve system stability and reliability too.
机译：提出了一种考虑网络自相似访问特性的接纳控制算法。利用基于网络流量准入控制的数学模型，可以通过基于优先级的差分服务队列调度，同时考虑包括访问特征在内的各种因素，从而有效地克服网络请求的自相似特征对于请求，负载信息等，本文提出的算法确保了准入控制的平滑性。通过引入指数接纳函数设计非线性自适应控制算法，克服了静态阈值参数引入的负面影响。仿真结果表明，本文提出的方案可以有效提高集群的资源利用率，同时可以保护高优先级的服务。仿真结果还表明，该算法也可以提高系统的稳定性和可靠性。

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