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A brief survey on replica consistency in cloud environments

Authors
  • Campêlo, Robson A.1
  • Casanova, Marco A.2
  • Guedes, Dorgival O.1
  • Laender, Alberto H. F.1
  • 1 Department of Computer Science, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil , Belo Horizonte (Brazil)
  • 2 Department of Informatics, Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, 22451-900, Brazil , Rio de Janeiro (Brazil)
Type
Published Article
Journal
Journal of Internet Services and Applications
Publisher
Springer London
Publication Date
Feb 21, 2020
Volume
11
Issue
1
Identifiers
DOI: 10.1186/s13174-020-0122-y
Source
Springer Nature
Keywords
License
Green

Abstract

Cloud computing is a general term that involves delivering hosted services over the Internet. With the accelerated growth of the volume of data used by applications, many organizations have moved their data into cloud servers to provide scalable, reliable and highly available services. A particularly challenging issue that arises in the context of cloud storage systems with geographically-distributed data replication is how to reach a consistent state for all replicas. This survey reviews major aspects related to consistency issues in cloud data storage systems, categorizing recently proposed methods into three categories: (1) fixed consistency methods, (2) configurable consistency methods and (3) consistency monitoring methods.

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