FabricCRDT: A Conflict-Free Replicated Datatypes Approach to Permissioned Blockchains

Proceedings of the 20th International Middleware Conference Pub Date : 2019-12-09 DOI:10.1145/3361525.3361540

Pezhman Nasirifard, R. Mayer, H. Jacobsen

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引用次数: 23

Abstract

With the increased adaption of blockchain technologies, permissioned blockchains such as Hyperledger Fabric provide a robust ecosystem for developing production-grade decentralized applications. However, the additional latency between executing and committing transactions, due to Fabric's three-phase transaction lifecycle of Execute-Order-Validate (EOV), is a potential scalability bottleneck. The added latency increases the probability of concurrent updates on the same keys by different transactions, leading to transaction failures caused by Fabric's concurrency control mechanism. The transaction failures increase the application development complexity and decrease Fabric's throughput. Conflict-free Replicated Datatypes (CRDTs) provide a solution for merging and resolving conflicts in the presence of concurrent updates. In this work, we introduce FabricCRDT, an approach for integrating CRDTs to Fabric. Our evaluations show that in general, FabricCRDT offers higher throughput of successful transactions than Fabric, while successfully committing and merging all conflicting transactions without any failures.

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FabricCRDT:许可区块链的无冲突复制数据类型方法

随着区块链技术的日益普及，像Hyperledger Fabric这样的许可区块链为开发生产级去中心化应用程序提供了一个强大的生态系统。然而，由于Fabric的执行-订单-验证(EOV)的三阶段事务生命周期，执行和提交事务之间的额外延迟是一个潜在的可伸缩性瓶颈。增加的延迟增加了不同事务对相同键进行并发更新的可能性，导致Fabric的并发控制机制导致事务失败。事务失败增加了应用程序开发的复杂性，降低了Fabric的吞吐量。无冲突复制数据类型(crdt)为合并和解决并发更新时的冲突提供了一种解决方案。在这项工作中，我们介绍了FabricCRDT，一种将crdt集成到Fabric的方法。我们的评估表明，总的来说，FabricCRDT提供了比Fabric更高的成功事务吞吐量，同时成功地提交和合并了所有冲突的事务，没有任何失败。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 20th International Middleware Conference

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