Memorias de investigación
Artículos en revistas:
Keeping Up with Storage: Decentralized, Write-Enabled Dynamic Geo-Replication
Año:2017
Áreas de investigación
  • Ciencias de la computación y tecnología informática
Datos
Descripción
Large-scale applications are ever-increasingly geo-distributed. Maintaining the highest possible data locality is crucial to ensure high performance of such applications. Dynamic replication addresses this problem by dynamically creating replicas of frequently accessed data close to the clients. This data is often stored in decentralized storage systems such as Dynamo or Voldemort, which offer support for mutable data. However, existing approaches to dynamic replication for such mutable data remain centralized, thus incompatible with these systems. In this paper we introduce a write-enabled dynamic replication scheme that leverages the decentralized architecture of such storage systems. We propose an algorithm enabling clients to locate tentatively the closest data replica without prior request to any metadata node. Large-scale experiments on various workloads show a read latency decrease of up to 42% compared to other state-of-the-art, caching-based solutions.
Internacional
Si
JCR del ISI
Si
Título de la revista
Future Generation Computer Systems-the International Journal of Escience
ISSN
0167-739X
Factor de impacto JCR
3,997
Información de impacto
Datos JCR del año 2016
Volumen
DOI
Número de revista
Desde la página
1
Hasta la página
14
Mes
SIN MES
Ranking
10
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ontology Engineering Group
  • Departamento: Arquitectura y Tecnología de Sistemas Informáticos