Predictive Models for Consistency Index of a Data Object in a Replicated Distributed Database System

Provided by: WSEAS
Topic: Data Management
Format: PDF
Consistency is a qualitative measure of database performance. Consistency Index (CI) is a quantification of consistency of a data unit in terms of percentage of correct reads to the total reads observed on the data unit in given time. The consistency guarantee of a replicated database logically depends on the number of reads, updates, number of replicas and workload distribution over time. This paper is to establish this dependency and finding their level of interactions with consistency guarantees to develop a predictor model for CI.

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