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Author Aguilera, Marcos K. ♦ Keidar, Idit ♦ Malkhi, Dahlia ♦ Shraer, Alexander
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Copyright Year ©2011
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Shared-memory emulations ♦ Atomic storage ♦ Dynamic systems
Abstract This article deals with the emulation of atomic read/write (R/W) storage in $\textit{dynamic}$ asynchronous message passing systems. In static settings, it is well known that atomic R/W storage can be implemented in a fault-tolerant manner even if the system is completely asynchronous, whereas consensus is not solvable. In contrast, all existing emulations of atomic storage in dynamic systems rely on consensus or stronger primitives, leading to a popular belief that dynamic R/W storage is unattainable without consensus. In this article, we specify the problem of dynamic atomic read/write storage in terms of the interface available to the users of such storage. We discover that, perhaps surprisingly, dynamic R/W storage is solvable in a completely asynchronous system: we present DynaStore, an algorithm that solves this problem. Our result implies that atomic R/W storage is in fact easier than consensus, even in dynamic systems.
ISSN 00045411
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2011-04-11
Publisher Place New York
e-ISSN 1557735X
Journal Journal of the ACM (JACM)
Volume Number 58
Issue Number 2
Page Count 32
Starting Page 1
Ending Page 32

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Source: ACM Digital Library