Phoenix: A Live Upgradable Blockchain Client

IF 3 3区计算机科学 Q2 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

IEEE Transactions on Sustainable Computing Pub Date : 2023-06-05 DOI:10.1109/TSUSC.2023.3282586

Chenmin Wang;Peng Li;Xuepeng Fan;Zaiyang Tang;Yulong Zeng;Kouichi Sakurai

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Abstract

Blockchain is an important supporting technology for various sustainable systems. It relies on a number of distributed nodes running blockchain client software, which is responsible for some critical tasks, such as communicating with other nodes and generating new blocks. However, the quick evolution of blockchain technology brings crucial challenges to blockchain client design. After carefully examining existing blockchain client software, we have identified a critical weakness: Blockchain clients are weak in supporting live upgrades, resulting in a blockchain fork that incurs security concerns and risks. In this article, we propose Phoenix, a novel blockchain client design that is live upgradable. Phoenix uses blockchain service encapsulation to decouple blockchain services. Based on service encapsulation, we propose a live upgrade scheme that packs upgrade codes into blockchain transactions and uses a Just-In-Time engine to avoid service interruption. A parallel execution engine is developed to increase service efficiency. We evaluated Phoenix on a 51-node blockchain, and experimental results show that Phoenix outperforms existing solutions in overhead and upgrade latency.

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凤凰：可实时升级的区块链客户端

区块链是各种可持续系统的重要支持技术。它依赖于一些运行区块链客户端软件的分布式节点，这些节点负责一些关键任务，如与其他节点通信和生成新区块。然而，区块链技术的快速发展给区块链客户端的设计带来了严峻的挑战。在仔细研究了现有的区块链客户端软件后，我们发现了一个关键的弱点：区块链客户端在支持实时升级方面比较薄弱，导致区块链分叉，从而引发安全问题和风险。在本文中，我们提出了可实时升级的新型区块链客户端设计--Phoenix。Phoenix 使用区块链服务封装来解耦区块链服务。在服务封装的基础上，我们提出了一种实时升级方案，将升级代码打包到区块链事务中，并使用即时引擎避免服务中断。我们还开发了并行执行引擎，以提高服务效率。我们在 51 个节点的区块链上对 Phoenix 进行了评估，实验结果表明 Phoenix 在开销和升级延迟方面优于现有解决方案。

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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来源期刊

IEEE Transactions on Sustainable Computing Mathematics-Control and Optimization

CiteScore

7.70

自引率

2.60%

发文量