NDLI: Lucky Read/Write Access to Robust Atomic Storage

Content Provider	IEEE Xplore Digital Library
Author	Guerraoui, R. Levy, R.R. Vukolic, M.
Copyright Year	2006
Description	Author affiliation: Sch. of Comput. & Commun. Sci., Ecole Polytech. Fed. de Lausanne (Guerraoui, R.; Levy, R.R.; Vukolic, M.)
Abstract	This paper establishes tight bounds on the best-case time-complexity of distributed atomic read/write storage implementations that tolerate worst-case conditions. We study asynchronous robust implementations where a writer and a set of reader processes (clients) access an atomic storage implemented over a set of 2t+b+1 server processes of which t can fail: b of these can be malicious and the rest can crash. We define a lucky operation (read or write) as one that runs synchronously and without contention. It is often argued in practice that lucky operations are the most frequent. We determine the exact conditions under which a lucky operation can be fast, namely expedited in one-communication round-trip with no data authentication. We show that every lucky write (resp., read) can be fast despite $f_{w}$ (resp., $f_{r})$ actual failures, if and only if $f_{w}+f$ $_{r}lest-b$
Starting Page	125
Ending Page	136
File Size	380060
Page Count	12
File Format	PDF
ISBN	0769526071
DOI	10.1109/DSN.2006.50
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Computer crashes Distributed computing Distributed algorithms Resilience Authentication Time measurement Artificial intelligence Laboratories Communication channels
Content Type	Text
Resource Type	Article

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