PPADHT中的复制策略

Replication Strategies in PPADHT

复制技术是提高分布式系统的性能和可靠性的关键技术之一。文章对比了已有的P2P系统的复制策略在PPADHT中表现，提出了的利用网络异构性的主动最多访问（AMFA）的复制技术。试验表明，和已有的复制技术相比，利用异构性的复制策略具有产生复制数目少、能有效提高系统性能、能够均衡路由负栽以及复制存储负载等优点。

Replication technology is a key to enhance the performance and reliability of distributed systems.In the paper,we first compare the performance on the PPADHT of the proposed replication technologies in the P2P systems.And then we propose the Active Most Frequent Access （AMFA） replication strategy,which could utilize the heterogeneity.The result of experiment shows that compared with those proposed replication strategies,the AMFA replication has the advantage of generating fewer replicas,obviously improvement of system performance,balance routing loads and replication storage loads.