A blockchain-based data storage method, device and system

Abstract

The present invention provides a block chain-based data storage method, device and system, wherein the block chain-based data storage system includes: a transaction server, which is used to perform transactions according to smart contracts and consensus mechanisms, and obtain block chain Data; database server routing configuration unit, used to dynamically configure and route the database server, to obtain the target database server; wherein, the target database server is used to store the block chain data; storage model call unit, used for from various types Call the corresponding database access protocol in the unified database driver interface of the database protocol, and call the corresponding storage model from the target database; the database server is used to store the blockchain data into the database and / or data table in the storage model middle.

Description

technical field [0001] The present invention relates to the technical field of blockchain, in particular to a data storage method, device and system based on blockchain. Background technique [0002] As an innovative technology architecture born with Bitcoin, blockchain technology is essentially an open, transparent, tamper-proof, and traceable distributed ledger technology. As the industry's research on blockchain technology application scenarios deepens, its application scale will inevitably increase, and blockchain data will become larger and larger. At present, the NOSQL non-relational database used for blockchain data storage is deployed on each transaction node, which makes the storage function and transaction function highly coupled. This leads to the following problems: [0003] (1) In the blockchain network, the distributed ledger data of each node is stored on a server, and all data must be verified on the server of each node before it can be stored persistently....

AI Technical Summary

Problems solved by technology

[0003] (1) In the blockchain network, the distributed ledger data of each node is stored on a server, and all data must be verified on the server of each node before it can be stored persistently. The performance requirements are extremely high, which brings certain performance bottlenecks to large-scale data applications

[0004] (2) The underlying persistent storage of blockchain distributed ledger data basically adopts open source NOSQL products, lacking independent monitoring, operation and maintenance of the data storage layer, and a distributed operation and maintenance mechanism for the database

[0005] (3) From the analysis of the architecture, the database is integrated on the transaction node of the blockchain, the database and the verification node are highly coupled, and the database is deployed on a single machine with the verification node of the blockchain, so there are difficulties in expansion

[0006] (4) For multi-application and multi-channel access to blockchain persistent data, under the current architecture, ledger data storage between different applications cannot be physically isolated

[0007] (5) The current blockchain storage architecture only supports the kv key-value storage structure, does not support the development and writing of simple sql statements, and the development efficiency is low. There are functional deficiencies in the processing of complex business logic, such as statistical analysis of financial business-related data , report generation functional requirements, block chain system operation and maintenance report statistics, secondary application development of block chain data, etc.

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