Exploiting Our Computational Surroundings for Better Mobile Collaboration

Barreto, João; Ferreira, Paulo; Shapiro, Marc

doi:10.1109/mdm.2007.24

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2010

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Cited by 2 publications

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“…What some authors call hidden conflicts [35] explains this. Essentially, a hidden conflict occurs when a replica is aware of two or more concurrent tentative versions.…”

Section: Commit Ratiomentioning

confidence: 99%

Meaningful Metrics for Evaluating Eventual Consistency

Barreto

Ferreira

2010

Euro-Par 2010 - Parallel Processing

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Abstract. Optimistic replication is a fundamental technique for supporting collaborative work practices in mobile environments. However, eventual consistency, in contrast to immediate strong consistency in pessimistic replication, is much harder to evaluate. This paper analyzes different metrics for measuring the effectiveness of eventually consistent systems. Using results from a simulated environment of relevant optimistic replication protocols, we show that each metric hides previously undocumented side effects. These add considerable imprecision to any evaluation that exclusively relies on a single metric. Hence, we advocate a combined methodology comprising three complementary metrics: commit ratio, average agreement delay and average commit delay.

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“…What some authors call hidden conflicts [35] explains this. Essentially, a hidden conflict occurs when a replica is aware of two or more concurrent tentative versions.…”

Section: Commit Ratiomentioning

confidence: 99%