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Author Gouda, Mohamed G.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Special computer methods
Abstract An access controller for a distributed database is a (central or distributed) structure which routes access requests to the different components of the database. Such a controller is also supposed to resolve the conflicts between concurrent requests, if any, such that deadlock situations never arise.In this paper, some architectures for distributed access controllers of distributed databases are investigated. In particular, three controllers with hierarchical architectures are considered. The controllers are evaluated based on three criteria: (i) freedom of deadlocks, (ii) robustness, and (iii) parallelism. The third criterion implies that the added redundancy to increase the controller robustness against failure conditions should also contribute to the amount of achieved parallelism during the no-failure periods. We then define a controller architecture which satisfies all the three criteria.
Description Affiliation: Information Science, Honeywell Systems and Research Center, Minneapolis, MN (Gouda, Mohamed G.)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1978-08-01
Publisher Place New York
Journal ACM SIGIR Forum (SIGF)
Volume Number 13
Issue Number 2
Page Count 6
Starting Page 65
Ending Page 70


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Source: ACM Digital Library