文档介绍：浙江大学博士学位论文摘要共享文件系统的转型,实现了动态网络环境下分布式文件系统的负载均衡与调度优化。QDFS自动对P2P结点的可用性与存储效率进行评估,实现了基于结点服务质量的数据分发策略。存确保较高的文件可用率的前提下,QDFS实现了下载速度与存储效率的有效平衡,继而实现了对网络带宽与闲散存储资源的高效利用。关键词:P2P,分布式网络,信息隐藏,信誉系统,激励,infrastructure,puters,thePeer-to-Peer(,existingP2Ptechnologiesfaceafewunsolvedproblems,work,theutilizationofheterogeneousresources,—orientedP2Pframework,whichtacklesseveralkeyissuesbroughtaboutbythecheap,dynamic,,work,work,invokingremoteDDsourcesautomaticallybyauniforminterface,managingreputationratingsforheterogeneousresources,,putingsystems,mercesystems,theproposedframeworkisprovedtobeexcellentthantraditionalP2Psystems,intermsofthesearcheffectiveness,security,robustness,scalability,.(1)Todealwiththeproblemofuniformlyandexpressivelymodelingheterogeneousresourcesinapplications,suchasdistributedfilesharing,putation,moditytrading,andSOon,essframework,includingasetofXML-essprotocols,isproposed,whichallowsforretrievingandremoteinvokingofheterogeneousresources.(2)Atwo—workforresourcepublishingandsearchinghasbeenimplemented,·.(3)mercesystems,anovelincentiverepumtionsystembasedoninformation-'theproblemofbiasedvotingcausedbythecriteriadifferencesofusersisstudied,,whichhelpsconstructahighlyreliableautonomoussy’stem.(4)QDFS,aquality—awaredistributedfilesystem,hasbeenimplementedbyintroducingareputationmechanismintotheHDFSdistributedfilesystem.Ⅵmilethe