Comparing maintenance strategies for overlays

QC 20120104
Also published as SICS technical report 2007:01.
In this paper, we present an analytical tool for understanding the performance of structured overlay networks under chum based on the master-equation approach of physics. We motivate and derive an equation for the average number of hops taken by lookups during churn, for the Chord network. We analyse this equation in detail to understand the behaviour with and without churn. We then use this understanding to predict how lookups will scale for varying peer population as well as varying the sizes of the routing tables. We also consider a change in the maintenance algorithm of the overlay, from periodic stabilisation to a reactive one which corrects fingers only when a change is detected. We generalise our earlier analysis to understand how the reactive strategy compares with the periodic one.

El-Ansary, SamehRISE,Computer Systems Laboratory (author)
Aurell, ErikKTH,Beräkningsbiologi, CB,ACCESS Linnaeus Centre(Swepub:kth)u1uc9cqo (author)
Haridi, SeifRISE,Computer Systems Laboratory(Swepub:ri)SeifHa@ri.se (author)
RISESICS (creator_code:org_t)

In:Proceedings of the 16th Euromicro Conference on Parallel, Distributed and Network-Based Processing, PDP 2008: IEEE Computer Society, s. 473-4829780769530895

By the author/editor: Krishnamurthy, S ...; El-Ansary, Sameh; Aurell, Erik; Haridi, Seif

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