Research on transaction allocation strategy in blockchain state sharding

Abstract

With the continuous enrichment of blockchain application scenarios, people have higher requirements for blockchain throughput and storage costs. State sharding is one of the most promising technologies for blockchain. It decentralizes the storage of the blockchain ledger to effectively reduce storage costs while increasing the throughput of the blockchain. However, it still has the hot sharding problem of most transactions in individual committees. This paper proposes a sharding transaction allocation strategy (STAS) to score committees and transactions according to different methods and assign high-scoring transactions to high-scoring committees. This allocation strategy, which allocates transactions on demand based on node capacity, mitigates hot sharding issues and makes it safer to hand over more valuable transactions to a more honest committee. Comparative experiments show that the proposed STAS strategy has lower latency and higher throughput than the previous sharding model.