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SCORe: A Scalable One-Copy Serializable Partial Replication Protocol

Abstract : In this article we present SCORe, a scalable one-copy serializable partial replication protocol. Differently from any other literature proposal, SCORe jointly guarantees the following properties: (i) it is genuine, thus ensuring that only the replicas that maintain data accessed by a transaction are involved in its processing, and (ii) it guarantees that read operations always access consistent snapshots, thanks to a one-copy serializable multiversion scheme, which never aborts read-only transactions and spares them from any (distributed) validation phase. This makes SCORe particularly efficient in presence of read-intensive workloads, as typical of a wide range of real-world applications. We have integrated SCORe into a popular open source distributed data grid and performed a large scale experimental study with well-known benchmarks using both private and public cloud infrastructures. The experimental results demonstrate that SCORe provides stronger consistency guarantees (namely One-Copy Serializability) than existing multiversion partial replication protocols at no additional overhead.
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Sebastiano Peluso, Paolo Romano, Francesco Quaglia. SCORe: A Scalable One-Copy Serializable Partial Replication Protocol. 13th International Middleware Conference (MIDDLEWARE), Dec 2012, Montreal, QC, Canada. pp.456-475, ⟨10.1007/978-3-642-35170-9_23⟩. ⟨hal-01555547⟩

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