摘要
针对分布式Fabric raft区块链网络,通过量化分析,对区块大小、背书策略、代理orderer节点与区块链交易性能之间的定量关系进行了研究。针对区块链性能的特点,提出一个名为区块生成速率BLKPS的性能指标。针对产生区块的时间条件,提出超时前最大交易次数MaxTBT这一性质,并发现,随着区块大小的增大,区块链交易性能提高,并在区块大小达到超时前最大交易次数后趋于稳定。背书策略为AND与背书策略为OR相比,平均响应时间延长20%,区块生成速率与每秒交易数均降低约10%。代理orderer节点是raft的follower节点与leader节点相比,平均响应时间延长约16%,区块生成速率与每秒交易数均降低约7%。
Distributed Fabric raft for a blockchain network,through quantitative analysis,quantitative relationship between the block size,endorsement strategy,agency orderer node and block chain transaction performance are studied.Aiming at the characteristics of blockchain performance,a performance index called BLKPS is proposed.According to the time condition of generating the block,the MaxTBT is proposed,and it is found that as the block size increases,the blockchain transaction performance is improved,and after the block size reaches MaxTBT becoming steady.The endorsement strategy AND is compared with the endorsement strategy OR,the average response time is extended by 20%,the block per second and transaction per second are reduced by about 10%.The proxy orderer node is the raft's follower node compared to the leader node,the average response time is extended by approximately 16%,and the block per second and transaction per second are reduced by approximately 7%.
作者
李雪飞
严悍
周亚茹
牛天胜
LI Xuefei;YAN Han;ZHOU Yaru;NIU Tiansheng(School of Computer Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094)
出处
《计算机与数字工程》
2021年第9期1855-1859,共5页
Computer & Digital Engineering
基金
国家重点研发计划政府间国际科技创新合作重点专项(编号:2016YFE0108000)
江苏省重点研发计划(产业前瞻与共性关键技术)项目(编号:BE2017163)资助。
关键词
区块链
分布式
RAFT
性能
共识协议
blockchain
distributed
raft
performance
consensus agreement
