HyperledgerFabric并發(fā)沖突消除機(jī)制

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關(guān)鍵詞：HyperledgerFabric；交易沖突；映射；有向無環(huán)圖；沖突消除 中圖分類號：TP393 文獻(xiàn)標(biāo)志碼：A 文章編號：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，F(xiàn)abricIMDmechanismcansignificantlyreduceinvalidtransactionscausedbytransactionconflicts.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，F(xiàn)abricIMDmechanismnotonlyavoidstransactionconflictsbutalsoenhancesthesystem’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

區(qū)塊鏈起源于比特幣[1]，其實(shí)質(zhì)是集合了對等（peertopeer，P2P）網(wǎng)絡(luò)、共識機(jī)制和密碼學(xué)等技術(shù)的分布式數(shù)據(jù)庫系統(tǒng)。（剩余18739字）