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Hierarchical peer-to-peer systems

Luis Garces-Erice, Ernst Biersack, Pascal Felber, Keith W Ross & Guillaume Urvoy-Keller

Résumé Structured peer-to-peer (P2P) lookup services organize peers into a flat overlay network and offer distributed hash table (DHT) functionality. Data is associated with keys and each peer is responsible for a subset of the keys. In hierarchical DHTs, peers are organized into groups, and each group has its autonomous intra-group overlay network and lookup service. Groups are organized in a top-level overlay network. To find a peer that is responsible for a key, the top-level overlay first determines the group responsible for the key; the responsible group then uses its intra-group overlay to determine the specific peer that is responsible for the key. We provide a general framework and a scalable hierarchical overlay management. We study a two-tier hierarchy using Chord for the top level. Our analysis shows that by using the most reliable peers in the top level, the hierarchical design significantly reduces the expected number of hops.
   
Citation L. Garces-Erice, et al., "Hierarchical peer-to-peer systems," in 9th International Euro-Par Conference on Parallel Processing, Klagenfurt, Austria, 2003, p. 1230-1239.
   
Type Actes de congrès (Anglais)
Editeur H Kosch, L Boszormenyi, H Hellwagner
Nom de la conférence 9th International Euro-Par Conference on Parallel Processing (Klagenfurt, Austria)
Date de la conférence 2003
Editeur commercial Springer-Verlag Berlin
Pages 1230-1239