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内容分发网络中资源感知的服务节点选择问题

DOI: 10.13190/jbupt.201203.103.huiw, PP. 103-107

Keywords: 内容分发网络,资源定位,分层聚类,网络坐标

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Abstract:

提出了一种在内容分发网络中选取最优服务节点的方法.该方法权衡了服务性能和服务开销,根据实时测量的网络状况和服务节点工作状态,利用网络坐标方法预测服务开销,同时在网络坐标空间中,利用分层聚类思想组织各服务节点,使用户请求能在保证服务性能的前提下,自适应地定位到开销最小的服务节点.实验结果表明,该方法可有效提高资源定位准确度,减少服务开销且具有较好的时间特性.

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