Understanding Availability

Understanding Availability (2003)

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by Ranjita Bhagwan , Stefan Savage , Geoffrey M. Voelker

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Datum	Value	Source
TITLE	Understanding Availability	user correction - Legacy Corrections
AUTHOR NAME	Ranjita Bhagwan	user correction - Legacy Corrections
AUTHOR AFFIL	Department of Computer Science and Engineering; University of California, San Diego	user correction - Legacy Corrections
AUTHOR NAME	Stefan Savage	user correction - Legacy Corrections
AUTHOR AFFIL	Department of Computer Science and Engineering; University of California, San Diego	user correction - Legacy Corrections
AUTHOR NAME	Geoffrey M. Voelker	user correction - Legacy Corrections
AUTHOR AFFIL	Department of Computer Science and Engineering; University of California, San Diego	user correction - Legacy Corrections
ABSTRACT	This paper addresses a simple, yet fundamental question in the design of peer-to-peer systems: What does it mean when we say "availability" and how does this understanding impact the engineering of practical systems? We argue that existing measurements and models do not capture the complex time-varying nature of availability in today's peer-to-peer environments. Further, we show that unforeseen methodological shortcomings have dramatically biased previous analyses of this phenomenon. As the basis of our study, we empirically characterize the availability of a large peer-to-peer system over a period of 7 days, analyze the dependence of the underlying availability distributions, measure host turnover in the system, and discuss how these results may affect the design of high-availability peer-to-peer services.	user correction - Legacy Corrections
YEAR	2003	user correction - Legacy Corrections
CITATIONS	15 found	ParsCit 1.0