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TOIS
2002

Peer-to-peer data trading to preserve information

13 years 11 months ago
Peer-to-peer data trading to preserve information
Data archiving systems rely on replication to preserve information. This paper discusses how a network of autonomousarchiving sites can trade data to achievethe most reliable replication. A seriesof binary trades among sites produces a peer-to-peer archiving network. Two trading algorithms are examined, one based on trading collections (even if they are different sizes) and another based on trading equal sized blocks of space (which can then store collections.) The concept of deeds is introduced; deeds track the blocks of space owned by one site at another. Policies for tuning these algorithms to provide the highest reliability, for example by changing the order in which sites are contacted and offered trades, are discussed. Finally, simulation results are presented that reveal which policies are best. The experiments indicate that a digital archive can achieve the best reliability by trading blocks of space (deeds), and that following certain policies will allow that site to maximize...
Brian F. Cooper, Hector Garcia-Molina
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 2002
Where TOIS
Authors Brian F. Cooper, Hector Garcia-Molina
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