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Optimal Resource Placement in Structured Peer-to-Peer Networks

机译:结构化对等网络中的最佳资源配置

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摘要

Utilizing the skewed popularity distribution in P2P systems, common in Gnutella and KazaA like P2P applications, we propose an optimal resource (replica or link) placement strategy, which can optimally trade off the performance gain and paid cost. The proposed resource placement strategy, with better results than existing works, can be generally applied in randomized P2P systems (Symphony) and deterministic P2P systems (e.g., Chord, Pastry, Tapestry, etc.). We apply the proposed resource placement strategy, respectively, to two novel applications: PCache (a P2P-based caching scheme) and PRing (a P2P ring structure). The simulation results as well as a real deployment on Planetlab demonstrate the effectiveness of the proposed resource placement strategy in reducing the average search cost of the whole system.
机译:利用在P2P应用程序中常见的Gnutella和KazaA中常见的P2P系统中偏斜的流行度分布,我们提出了一种最佳资源(副本或链接)放置策略,该策略可以最佳地权衡性能收益和已付成本。所提出的资源放置策略比现有工作效果更好,通常可以应用于随机P2P系统(Symphony)和确定性P2P系统(例如Chord,Pastry,Tapestry等)。我们将提议的资源放置策略分别应用于两个新颖的应用程序:PCache(基于P2P的缓存方案)和PRing(P2P环形结构)。仿真结果以及在Planetlab上的实际部署证明了所建议的资源放置策略在降低整个系统的平均搜索成本方面的有效性。

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