Fast and proximity-aware multi-source overlay multicast under heterogeneous environment
Computer Communications
A proactive low-overhead file replication scheme for structured P2P content delivery networks
Journal of Parallel and Distributed Computing
PAIS: A Proximity-Aware Interest-Clustered P2P File Sharing System
CCGRID '09 Proceedings of the 2009 9th IEEE/ACM International Symposium on Cluster Computing and the Grid
A balanced consistency maintenance protocol for structured P2P systems
INFOCOM'10 Proceedings of the 29th conference on Information communications
Review: A survey on content-centric technologies for the current Internet: CDN and P2P solutions
Computer Communications
| Hi-index | 0.00 |
Consistency maintenance mechanism is necessary for the emerging Peer-to-Peer applications due to their frequent data updates. Centralized approaches suffer single point of failure, while previous decentralized approaches incur too many duplicate update messages because of locality-ignorant structures. To address this issue, we propose a scalable and efficient consistency maintenance scheme for heterogeneous P2P systems. Our scheme takes the heterogeneity nature into account and forms the replica nodes of a key into a locality-aware hierarchical structure, in which the upper layer is DHT-based and consists of powerful and stable replica nodes, while a replica node at the lower layer attaches to a physically close upper layer node. A d-ary update message propagation tree (UMPT) is dynamically built upon the upper layer for propagating the updated contents. As a result, the tree structure does not need to be maintained all the time, sav-ing a lot of cost. Through theoretical analyses and comprehensive simulations, we examine the efficiency and scalability of this design. The results show that, compared with previous designs, especially locality-ignorant ones, our approach is able to reduce the cost by about 25-67 percent.