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Adaptive Server Partition for Service Level Agreements in Cluster-based Web Server

机译:基于群集的Web服务器中用于服务级别协议的Adaptive Server分区

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摘要

As the Web sites provide more complex and critical services, which are business-oriented services, it is necessary to support not only quantity of service but also quality of service (QoS) in the Web server. Also, the need of differentiated classes of users and services is growing larger than ever. To enable differentiated services in the Web server, the mechanism for delivering end-to-end QoS is needed. We focus on solutions for providing QoS support in cluster platforms with multiple server nodes that host a single Web site. In the paper, we present a new server partition mechanism (AdaptivePart) for differentiated service in Web server cluster. Our method enables the Web server to guarantee Service Level Agreements (SLAs) for different classes of users and Web services. Through the simulations using realistic workload models, we demonstrate that the proposed scheme is able to guarantee an SLA of users with higher priority class, especially when the system is heavily loaded.
机译:由于网站提供了更为复杂和关键的服务(即面向业务的服务),因此有必要在Web服务器中不仅支持服务数量,而且还支持服务质量(QoS)。而且,区分类别的用户和服务的需求比以往任何时候都越来越大。为了在Web服务器中启用差异化服务,需要用于提供端到端QoS的机制。我们专注于在具有承载单个网站的多个服务器节点的群集平台中提供QoS支持的解决方案。在本文中,我们提出了一种新的服务器分区机制(AdaptivePart),用于Web服务器群集中的差异服务。我们的方法使Web服务器能够为不同类别的用户和Web服务保证服务水平协议(SLA)。通过使用实际工作量模型进行的仿真,我们证明了该方案能够保证具有较高优先级的用户的SLA,尤其是在系统负载较重的情况下。

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