Distributed Computing: 23rd International Symposium, DISC by Lorenzo Alvisi Chair, Rachid Guerraoui, Prasad Jayanti, Idit PDF

By Lorenzo Alvisi Chair, Rachid Guerraoui, Prasad Jayanti, Idit Keidar, Shay Kutten (auth.), Idit Keidar (eds.)

ISBN-10: 3642043550

ISBN-13: 9783642043550

This booklet constitutes the refereed lawsuits of the 23nd foreign Symposium on allotted Computing, DISC 2009, held in Elche, Spain, in September 2009.

The 33 revised complete papers, chosen from 121 submissions, are offered including 15 short bulletins of ongoing works; them all have been conscientiously reviewed and chosen for inclusion within the ebook. The papers tackle all elements of allotted computing, and have been geared up in topical sections on Michel Raynal and Shmuel Zaks sixtieth birthday symposium, award nominees, transactional reminiscence, shared reminiscence, allotted and native graph algorithms, modeling matters, online game conception, failure detectors, from conception to perform, graph algorithms and routing, consensus and byzantine contract and radio networks.

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Additional info for Distributed Computing: 23rd International Symposium, DISC 2009, Elche, Spain, September 23-25, 2009. Proceedings

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Uk } or vice versa which requires the exchange of a message along the path link (uj−1 , uj ). It follows that our monotonic labeling algorithm performs O(nf (n)) labeling operations in total, thus establishing Theorem 1. 3 An (M, W )-Controller In this section we consider a dynamic rooted tree T of initial size N0 and construct an (M, M/2)-controller for T with message complexity O(N0 log2 M ) assuming that M < N0 . This is done in two stages. 1. 2. 1 A Reduction from Trees to Paths In this section we design a transformation from the (M, M/2)-controller problem on a tree T to the (M, M/2)-controller problem on a path P .

Every distributed computing problem has a weakest failure detector [8]. It has been recently shown [9,10] that, for all 0 < k < n, the weakest failure detector for solving k-set agreement is ¬Ωk , regardless of the assumptions on when and where failures might occur. ¬Ωk outputs, when queried, a set of n − k processes so that some correct process is output only finitely many times. , tolerating k faulty processes. Weak termination means here that to solve a task we only require one process to output.

More generally, for all n ≥ k + 1, there is no algorithm that solves n-process k-set agreement (or simply (n, k)-set agreement) tolerating k faulty processes [4,5]. In other words, the lack of synchrony and the presence of failures make k-resilient (n, k)-set agreement impossible. To circumvent the impossibility, assuming that we still want to tolerate failures, we need to introduce some synchrony into the system. But how much synchrony is enough? I. ): DISC 2009, LNCS 5805, pp. 35–47, 2009. c Springer-Verlag Berlin Heidelberg 2009 36 E.

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Distributed Computing: 23rd International Symposium, DISC 2009, Elche, Spain, September 23-25, 2009. Proceedings by Lorenzo Alvisi Chair, Rachid Guerraoui, Prasad Jayanti, Idit Keidar, Shay Kutten (auth.), Idit Keidar (eds.)


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