A statistical theory of Chord under churn
2005 (English)In: Lecture Notes in Computer Science, ISSN 0302-9743, E-ISSN 1611-3349, Vol. 3640, 93-103 p.Article in journal (Refereed) Published
Most earlier studies of DHTs under churn have either depended on simulations as the primary investigation tool, or on establishing bounds for DHTs to function. In this paper, we present a complete analytical study of churn using a master-equation- based approach, used traditionally in non-equilibrium statistical mechanics to describe steady-state or transient phenomena. Simulations are used to verify all theoretical predictions. We demonstrate the application of our methodology to the Chord system. For any rate of churn and stabilization rates, and any system size, we accurately predict the fraction of failed or incorrect successor and finger pointers and show how we can use these quantities to predict the performance and consistency of lookups under churn. We also discuss briefly how churn may actually be of different 'types' and the implications this will have for the functioning of DHTs in general.
Place, publisher, year, edition, pages
2005. Vol. 3640, 93-103 p.
Computer science, Computer simulation, Performance, Statistical mechanics, Chord system, Investigation tools, Master-equation-based approach
IdentifiersURN: urn:nbn:se:kth:diva-25147DOI: 10.1007/11558989_9ISI: 000234463200008ScopusID: 2-s2.0-33646024301OAI: oai:DiVA.org:kth-25147DiVA: diva2:356110
QC 20101011. Ingår i 4th International Workshop on Peer-to-Peer Systems, IPTPS 20052010-10-112010-10-112010-10-11Bibliographically approved