%0 Journal Article
%T A Distributed Algorithm for Content-Aware Web Server Clusters<br>基于内容的分布式Web服务器调度算法
%A DU Zeng-Kai
%A ZHENG Ming-Yang
%A JU Jiu-Bin
%A <br>杜增凯
%A 郑名扬
%A 鞠九滨
%J 软件学报
%D 2003
%I 
%X While content-aware distribution policies are getting more popular in cluster-based web systems, they make the dispatching node a bottleneck. To address the scalability and fault-tolerance problem, issues about designing distributed dispatching policies are discussed. For the policies aiming at improving the cache hit rate, a distributed dispatching policy named DWARD (distributed workload-aware request distribution) that takes into account both the load balance and the locality enhancement is presented. Finally, a testbed is implemented on the basis of a Linux kernel to benchmark various dispatching algorithms. The performance results show that DWARD can achieve a favorable throughput compared with the state-of-the-art dispatching policies.
%K distributed Web server (DWS)
%K content-based
%K scalability
%K fault tolerance<br>分布式Web服务器
%K 基于内容
%K 可扩展性
%K 容错
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=C415EEC546A1F0FA&yid=D43C4A19B2EE3C0A&vid=F3583C8E78166B9E&iid=59906B3B2830C2C5&sid=1A12D34D3633DCF5&eid=CFC6DB3515228A5D&journal_id=1000-9825&journal_name=软件学报&referenced_num=3&reference_num=17