Block chain data cutting method and device, node recovery method and device, equipment and medium

Abstract

The invention discloses a block chain data cutting method, which comprises the steps of a block chain node acquiring a cutting parameter, wherein the block chain node comprises a first state databaseand a second state database; obtaining read-write set information corresponding to a to-be-clipped block from the first state database according to clipping parameters, and writing the read-write setinformation into the second state database; acquiring block data corresponding to the to-be-clipped block and index data and configuration blocks thereof according to the clipping parameters; generating a snapshot file corresponding to the cutting operation according to the block data corresponding to the to-be-cut block, the index data of the to-be-cut block, a configuration block and read-writeset information in the second state database; and deleting the block data corresponding to the to-be-clipped block and the index data of the to-be-clipped block from the block chain node. According tothe method, the problems of disk space expansion and bandwidth generated when block data in an existing Fabric block chain account book is continuously increased are solved.

Description

technical field [0001] The present invention relates to the field of information technology, and in particular to a block chain data clipping method, node recovery method, device, equipment and medium. Background technique [0002] The fabric blockchain ledger includes two types of nodes: sorting node / consensus node (Orderer) and verification node (peer). The Orderer node receives all the blocks on the chain for sorting, and saves the block data locally and broadcasts it to the peer node. Each peer node checks the validity of the block data and writes it to the local disk. [0003] In the blockchain ledger, each Orderer node and peer node must save a full amount of data. With the development of business, the number of blocks increases day by day, thus occupying a large amount of disk space. With the occupation of disk space, there will be many inconvenient things such as downtime for physical system expansion in the future. [0004] If a new node joins the blockchain net...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a block chain data clipping method, device, equipment, and medium to solve the problem of disk space expansion and bandwidth problems when the block data in the existing fabric block chain account book continues to increase.

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