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SAGE: Sagacious File Replication Mechanism for Structured P2P Systems

机译：SAGE：结构化P2P系统的睿智文件复制机制

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摘要

Most traditional file replication methods fail to take into account non-uniform and time-varying file popularity, update rate, and node available capacity, which are vital factors for high efficiency of file replication mechanisms. This paper presents a sagacious file replication mechanism, namely SAGE, that considers these factors to achieve high efficiency in file replication. SAGE makes file replicas in nodes according to node available capacities, and it generates less replicas for frequently-updated or infrequently-visited files to reduce consistency maintenance overhead. Simulation results demonstrate the effectiveness of SAGE in comparison with other schemes. It dramatically reduces the overhead of file replication, improves the efficiency of file replication, and yields significant improvement in reduction of overloaded nodes.
机译：大多数传统的文件复制方法无法考虑非统一和时变的文件流行度，更新速率和节点可用容量，这是用于更高效率的文件复制机制的重要因素。本文呈现了一个睿智的文件复制机制，即Sage，考虑了这些因素，以实现文件复制的高效率。 Sage根据节点可用容量在节点中使文件副本，并且它会为常用或不经常访问的文件生成更少的副本，以减少一致性维护开销。仿真结果证明了与其他方案相比的贤者的有效性。它大大减少了文件复制的开销，提高了文件复制的效率，并在减少过载节点时产生显着的改进。

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