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arXiv · 1901.10615

Data Consistency in Transactional Storage Systems: a Centralised Approach

Shale Xiong·Andrea Cerone·Azalea Raad·Philippa Gardner
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Abstract

We introduce an interleaving operational semantics for describing the client-observable behaviour of atomic transactions on distributed key-value stores. Our semantics builds on abstract states comprising centralised, global key-value stores and partial client views. We provide operational definitions of consistency models for our key-value stores which are shown to be equivalent to the well-known declarative definitions of consistency model for execution graphs. We explore two immediate applications of our semantics: specific protocols of geo-replicated databases (e.g. COPS) and partitioned databases (e.g. Clock-SI) can be shown to be correct for a specific consistency model by embedding them in our centralised semantics; programs can be directly shown to have invariant properties such as robustness results against a weak consistency model.

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Shale Xiong, Andrea Cerone, Azalea Raad, Philippa Gardner. 2019-01-29. Data Consistency in Transactional Storage Systems: a Centralised Approach. https://arxiv.org/abs/1901.10615

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