A Parallel Blockchain Sharding Method Based on Smart Contract Optimization Model

Abstract

The invention discloses a parallel block chain fragmentation method based on smart contract execution optimization, comprising: each miner node obtains a set of contract transactions from a peer-to-peer network and sends them to a preprocessing module; The historical transactions are compared and then grouped and optimized; the smart contract scheduling module executes the smart contract concurrently on the optimized transaction based on the SV‑SCC algorithm, and calculates the final state; the miner node that sends the execution generates a new block; the miner node generates a new block. The block is sent to all network nodes for verification, and added to the blockchain after the verification is valid. At the same time, the new conflict record is sent to the preprocessing module synchronously, and the preprocessing module updates the feature information statistics table FIS. The invention realizes high concurrent execution of smart contracts, realizes higher transaction throughput, reduces the possibility of overheating of a single node, and provides a feasible solution for large-scale transaction application scenarios.

Description

technical field [0001] The invention belongs to the field of computer technology, and in particular relates to a parallel block chain fragmentation method based on smart contract execution optimization. Background technique [0002] With the popularity of virtual currencies and the continuous increase in the scale of transactions on the chain, the performance defects of the current blockchain platforms are gradually exposed (such as low throughput, lack of concurrency, etc.). In order to meet the needs of large-scale applications, the academic community has introduced a sharding mechanism to improve the transaction throughput of the entire platform through parallel processing between shards without reducing the degree of decentralization of the system. [0003] Sharding is the division of all nodes in the network into several subgroups. Each subgroup handles different tasks in parallel to increase the processing power of the system. However, in the context of this technolo...

AI Technical Summary

Problems solved by technology

Some existing methods use new types of concurrent smart contracts, aiming to improve the performance of smart contract execution, but will cause a large number of transaction blocking and restarts when the transaction volume increases, and have not been optimized for high-concurrency services

In addition, the concurrency control algorithm has a direct impact on the execution efficiency of smart contracts, so the existing SCC algorithm is not suitable for the blockchain fragmentation environment

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