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Performance Analysis of the Raft Consensus Algorithm for Private Blockchains
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DOI：10.1109/TSMC.2019.2895471.png)
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摘要
En 中文
Consensus is one of the key problems in blockchains. There are many articles analyzing the performance of threat models for blockchains. But the network stability seems lack of attention, which in fact affects the blockchain performance. This paper studies the performance of a well adopted consensus algorithm, Raft, in networks with non-negligible packet loss rate. In particular, we propose a simple but accurate analytical model to analyze the distributed network split probability. At a given time, we explicitly present the network split probability as a function of the network size, the packet loss rate, and the election timeout period. To validate our analysis, we implement a Raft simulator and the simulation results coincide with the analytical results. With the proposed model, one can predict the network split time and probability in theory and optimize the parameters in Raft consensus algorithm.
Keyword:
Voting
Blockchain
Heart beat
Consensus algorithm
Packet loss
Transient analysis
Blockchain
network split probability
private blockchain
Raft consensus algorithm
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期刊
IF:
10.5
论文数:
1.1W
被引数:
5.0W
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