Stabilizing consensus with the power of two choices
Stabilizing consensus with the power of two choices
复制标题
以两种选择的力量稳定共识
DOI:
10.1145/1989493.1989516
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Doerr B
中科院分区:
文献类型:
--
作者:
Doerr B
In the standard consensus problem there arenprocesses with possibly different input values and the goal is to eventually reach a point at which all processes commit to exactly one of these values. We are studying a slight variant of the consensus problem called thestabilizing consensus problem[2]. In this problem, we do not require that each process commits to a final value at some point, but that eventually they arrive at a common, stable value without necessarily being aware of that. This should work irrespective of the states in which the processes are starting. Our main result is a simple randomized algorithm calledmedian rulethat, with high probability, just needsO(logmlog logn+ logn) time and work per process to arrive at an almost stable consensus for any set ofmlegal values as long as an adversary can corrupt the states of at most √nprocesses at any time. Without adversarial involvement, justO(logn) time and work is needed for a stable consensus, with high probability. As a by-product, we obtain a simple distributed algorithm for approximating the median ofnnumbers in timeO(logmlog logn+ logn) under adversarial presence.
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DOI:
--
发表时间:
1999
期刊:
40th Annual Symposium on Foundations of Computer Science (Cat. No.99CB37039)
影响因子:
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作者:
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通讯作者:
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DOI:
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1994
期刊:
SIAM journal on computing (Print)
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发表时间:
2007
期刊:
ACM Symposium on Parallelism in Algorithms and Architectures
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2009
期刊:
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作者:
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通讯作者:
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DOI:
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发表时间:
1998
期刊:
International Workshop Randomization and Approximation Techniques in Computer Science
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作者:
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通讯作者:
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