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Erschienen in:
2006 | OriginalPaper | Buchkapitel
An Adaptive Probabilistic Replication Method for Unstructured P2P Networks
verfasst von : Dimitrios Tsoumakos, Nick Roussopoulos
Erschienen in: On the Move to Meaningful Internet Systems 2006: CoopIS, DOA, GADA, and ODBASE
Verlag: Springer Berlin Heidelberg
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We present
APRE
, a replication method for unstructured Peer-to-Peer overlays. The goal of our method is to achieve real-time replication of even the most sparsely located content relative to demand.
APRE
adaptively
expands
or
contracts
the replica set of an object in order to improve the sharing process and achieve a low load distribution among the providers. To achieve that, it utilizes search knowledge to identify possible replication targets inside query-intensive areas of the overlay. We present detailed simulation results where
APRE
exhibits both efficiency and robustness over the number of requesters and the respective request rates. The scheme proves particularly useful in the event of flash crowds, managing to quickly adapt to sudden surges in load.