NDLI: Minimal System Conditions to Implement Unreliable Failure Detectors

Content Provider	IEEE Xplore Digital Library
Author	Fernandez, A. Jimenez, E. Arevalo, S.
Copyright Year	2006
Description	Author affiliation: LADyR, Univ. Rey Juan Carlos, Mostoles (Fernandez, A.)
Abstract	In this paper we explore the minimal system requirements to implement unreliable failure detectors. We first consider systems formed by lossy asynchronous and eventually timely links. On these systems we define two properties, the weak property and the strong property, depending on whether all correct processes can be reached with links that are not lossy asynchronous from one or from all correct processes, respectively. We present necessary conditions based on these properties. We show that there is no algorithm that implements diamS, Omega, nor S (resp. diamP nor P) if we allow one single failure in a system that, when all processes are correct, does not satisfy the weak (resp. strong) property. Then, we propose an algorithm that implements diamP if the strong property is satisfied, and diamS (and Omega with an additional assumption) if only the weak property is satisfied. For systems formed by synchronous and lossy asynchronous links only, we propose another algorithm that implements detector class $P_{4}$ if the strong property is satisfied, and implements a new detector class $S^{1}$ (and Omega with an additional assumption) if only the weak property is satisfied
Sponsorship	IEEE Comput. Soc. TC on Fault-Tolerant Comput. Univ. of California, Riverside
Starting Page	63
Ending Page	72
File Size	206906
Page Count	10
File Format	PDF
ISBN	0769527248
DOI	10.1109/PRDC.2006.44
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-12-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Detectors Computer crashes Distributed computing IEEE news Upper bound
Content Type	Text
Resource Type	Article

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