RW-Through: A Data Replication Protocol Suitable for GeoDistributed and Read-Intensive Workloads

• Wagner Rezende Muniz Barretto Universidade Tecnológica Federal do Paraná
• Ana Cristina B. Kochem Vendramin UTFPR
• Mauro Fonseca UTFPR

DOI: https://doi.org/10.5753/wcga.2019.7592

Resumo

In large-scale modern applications, users consume much more datathan they create. To guarantee that data storage systems appropriately han-dle read-intensive workloads, application designers have been adopting datareplication and caching techniques. These techniques face many challenges re-garding data consistency, specially in faulty network conditions such as wide-area networks. In this work we use recent distributed consistency frameworksto identify the consistency models of the main solutions for read-intensive work-loads used today in the industry. Additionally, we present RW-Through, a newdata replication protocol suited for large-scale read-intensive workloads. Ournew protocol provides stronger consistency guarantees than current solutionsand is designed to tolerate unreliable network conditions, making it suitable forgeo-distributed deployments.

Palavras-chave: Modelos de Consistencia, Protocolos, Replicação de Dados

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