IEEE Internet Computing
Measurement, modeling, and analysis of a peer-to-peer file-sharing workload
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Free Riding on Gnutella Revisited: The Bell Tolls?
IEEE Distributed Systems Online
ATEC '06 Proceedings of the annual conference on USENIX '06 Annual Technical Conference
On Gnutella topology dynamics by studying leaf and ultra connection jointly in phase space
Computer Networks: The International Journal of Computer and Telecommunications Networking
An empirical analysis of serendipitous media sharing among campus-wide wireless users
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
An analysis of longitudinal TCP passive measurements
TMA'11 Proceedings of the Third international conference on Traffic monitoring and analysis
Super-peer-based coordinated service provision
Journal of Network and Computer Applications
| Hi-index | 0.00 |
Peer-to-Peer (P2P) applications, such as Gnutella, are evolving to address some of the observed performance issues. In this paper, we analyze Gnutella behavior in 2003, 2005, and 2006. During this time, the protocol evolved from v0.4 to v0.6 to address problems with overhead of overlay maintenance and query traffic bandwidth. The goal of this paper is to understand whether the newer protocols address the prior concerns. We observe that the new architecture alleviated the bandwidth consumption for low capacity peers while increasing the bandwidth consumption at high capacity peers. We measured a decrease in incoming query rate. However, highly connected ultra-peers must maintain many connections to which they forward all queries thereby increasing the outgoing query traffic. We also show that these changes have not significantly improved search performance. The effective success rate experienced at a forwarding peer has only increased from 3.5% to 6.9%. Over 90% of queries forwarded by a peer do not result in any query hits. With an average query size of over 100 bytes and 30 neighbors for an ultra-peer, this results in almost 1 GB of wasted bandwidth in a 24 hour session. We outline solution approaches to solve this problem and make P2P systems viable for a diverse range of applications.