HyperledgerFabric并发冲突消除机制

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关键词：HyperledgerFabric；交易冲突；映射；有向无环图；冲突消除 中图分类号：TP393 文献标志码：A 文章编号：1001-3695（2025）07-004-1948-08 doi：10.19734/j.issn.1001-3695.2024.11.0452

Abstract：HyperledgerFabricisa mainstreamconsortium blockchain platform.When facing multipleconcurrent transactions thatareinterrelated，theexistingarchitecturetendstogeneratealargenumberof invalidtransactionswhichsverelyrduces thesystem’sefectivetransactionprocessingcapability.Toaddressthisisse，thispaperproposedaconflicteliminationechnism that integrated map and directed acyclic graph（DAG），known as the FabricIMD（Fabric integrated with map and DAG） mechanism.The mechanism identified dependencies between transactions atthe per node（endorser）through map andconstructed theserelationshipsusingadirectedacyclicgaphtoadjust theendorsementorderoftransactions，therebyefectivelyavoiding transactionconflicts.Experimentsdemonstratethatwhentherearemultipleinterrelatedconcuenttransactions，FabricIMDmechanismcansignificantlyreduceinvalidtransactionscausedbytransactionconflicts.Withvaryingdegresofconflict among transactions，the system’s effective transaction throughput increased by 15.68% to 96.08% . Moreover，when dealing withunrelatedconcurrnttransactions，the introductionofthis mechanismdidnotsignificantlyimpact systemperfor-mance.In summary，FabricIMDmechanismnotonlyavoidstransactionconflictsbutalsoenhancesthesystem’seffectivetransaction throughout and significantly reduces the number of invalid transactions.

Key Words：Hyperledger Fabric；transactionconflict；map；directed acyclic graph（DAG）；conflict elimination

0 引言

区块链起源于比特币[1]，其实质是集合了对等（peertopeer，P2P）网络、共识机制和密码学等技术的分布式数据库系统。（剩余18739字）