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Valued Redundancy

Calton Pu; Avraham Leff; Shu-Wie Chen; Frederick Korz; Jae M. Wha

Title:
Valued Redundancy
Author(s):
Pu, Calton
Leff, Avraham
Chen, Shu-Wie
Korz, Frederick
Wha, Jae M.
Date:
Type:
Technical reports
Department:
Computer Science
Permanent URL:
Series:
Columbia University Computer Science Technical Reports
Part Number:
CUCS-453-89
Publisher:
Department of Computer Science, Columbia University
Publisher Location:
New York
Abstract:
Replicated objects increase distributed system performance and availability. An object is more valuable to the system if it contributes more to system performance (e.g. it is frequently accessed) and availability. Similarly, an object is less valuable if it is expensive to maintain (e.g. it is a large object). By replicating only the most valuable objects we use redundancy to maximize system performance and availability a t low cost. A simulation study of a distributed main-memory database shows substantial performance and availability gains with valued redundancy.
Subject(s):
Computer science
Item views:
85
Metadata:
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