2005 | OriginalPaper | Chapter
High Availability in DHTs: Erasure Coding vs. Replication
Authors : Rodrigo Rodrigues, Barbara Liskov
Published in: Peer-to-Peer Systems IV
Publisher: Springer Berlin Heidelberg
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High availability in peer-to-peer DHTs requires data redundancy. This paper compares two popular redundancy schemes: replication and erasure coding. Unlike previous comparisons, we take the characteristics of the nodes that comprise the overlay into account, and conclude that in some cases the benefits from coding are limited, and may not be worth its disadvantages.