Distributed Caching Strategies in Peer-to-Peer Systems
出版社：
- 会议名称：The 13th IEEE International Conference on High Performance Computing and Communications (HPCC 2011)
- 举办地点：Banff,Canada
- 举办日期：September 2-4, 2011
- 页数：1-8
摘要内容：
Today, P2P system is one of the largest Internet bandwidth consumers. In order to relieve the burden on Internetbackbone and improve the user access experience, ef?cientcaching strategies should be applied. However, due to its autonomous nature, a fully distributed caching scheme is verydif?cult to design and implement. Most current P2P cachingapproaches are using Client/Server architecture by deployingdedicated proxy servers on the edge of networks. Such archi-tecture is expensive. It also incurs single point of failure and hotspot problems. Furthermore, it violates P2P principle and failedto utilize vast available resources on individual peers.In this paper, we investigate the techniques for ef?cientdistributed P2P caching. We propose novel placement and re-placement algorithms to make caching decisions. For each object,an adequate number of copies are generated and disseminatedon topologically distant locations. Combined with the underlyinghierarchical query infrastructure, our strategies relieve the over-caching problems for popular objects, and provide more cachespace for other objects.
