NDLI: Improving Search Using a Fault-Tolerant Overlay in Unstructured P2P Systems

Content Provider	IEEE Xplore Digital Library
Author	Acosta, W. Chandra, S.
Copyright Year	2007
Description	Author affiliation: Notre Dame Univ., South Bend, IN (Acosta, W.; Chandra, S.)
Abstract	Gnutella overlays have evolved to use a two-tier topology. However, we observed that the new topology had only achieved modest improvements in search success rates. Also, the new two-tier topology had not reduced the message routing overhead and bandwidth consumption. In this work, we used local information at each node to construct an overlay, Makalu, that improved search performance and reduced bandwidth consumption. The overlay maximized the expansion from each node's neighborhood while minimizing the latency to its neighbors. We show that for a 100,000 node system, wild card searches using flooding successfully resolved most queries within four hops for object replications ratios as lows as 0.05% (50 randomly distributed copies) with less than 3% duplicate messages. Using attenuated bloom filters to route messages for exact identifier searches, we show that Makalu resolved most queries with less than ten messages for networks as large as 100,000 nodes. The performance of this search is comparable to that of structured P2P systems. Finally, using data from traffic traces of Gnutella in 2003 and 2006, we demonstrated search success rates that were up to five times more successful and required 75% less bandwidth on a Makalu overlay than on a modern Gnutella overlay.
Sponsorship	Int. Assoc. Comput. Commun.
Starting Page	5
Ending Page	5
File Size	304774
Page Count	1
File Format	PDF
ISSN	01903918
DOI	10.1109/ICPP.2007.48
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-10
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fault tolerant systems Peer to peer computing Bandwidth Protocols Routing Topology Floods Delay Filters Telecommunication traffic P2P and Ubiquitous Computing
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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