Strong and Efficient Consistency with Consistency-aware Durability
| Autor: | Andrea C. Arpaci-Dusseau, Remzi H. Arpaci-Dusseau, Ramnatthan Alagappan, Aishwarya Ganesan |
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| Rok vydání: | 2021 |
| Předmět: |
Property (programming)
Computer science Distributed computing Strong consistency Consistency model 020206 networking & telecommunications CAD 02 engineering and technology Replication (computing) Consistency (database systems) Hardware and Architecture 020204 information systems Distributed data store 0202 electrical engineering electronic engineering information engineering Throughput (business) |
| Zdroj: | ACM Transactions on Storage. 17:1-27 |
| ISSN: | 1553-3093 1553-3077 |
| Popis: | We introduce consistency-aware durability or C ad , a new approach to durability in distributed storage that enables strong consistency while delivering high performance. We demonstrate the efficacy of this approach by designing cross-client monotonic reads , a novel and strong consistency property that provides monotonic reads across failures and sessions in leader-based systems; such a property can be particularly beneficial in geo-distributed and edge-computing scenarios. We build O rca , a modified version of ZooKeeper that implements C ad and cross-client monotonic reads. We experimentally show that O rca provides strong consistency while closely matching the performance of weakly consistent ZooKeeper. Compared to strongly consistent ZooKeeper, O rca provides significantly higher throughput (1.8--3.3×) and notably reduces latency, sometimes by an order of magnitude in geo-distributed settings. We also implement C ad in Redis and show that the performance benefits are similar to that of C ad ’s implementation in ZooKeeper. |
| Databáze: | OpenAIRE |
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