Block chain node, system and digital data copy allocation method

Abstract

The disclosure provides a blockchain node, a blockchain system and a digital data copy allocation method, and belongs to the technical field of blockchains. The method comprises the following steps: after any node receives a digital data storage request, obtaining metadata of a neighbor node; selecting a preset number of neighbor nodes as copy nodes according to the obtained metadata of each neighbor node; and sending a copy storage request to a neighbor node selected as a copy node, the neighbor node responding to the copy storage request. The digital data copies are self-managed, self-scheduled and self-controlled by the nodes, the scheduling pressure of the nodes can be reduced, the performance requirements of the nodes are reduced, the operation cost is saved, and the storage of the digital data is distributed storage, which truly conforms to the thought of decentration or multi-center of the blockchain.

Description

technical field [0001] The present disclosure relates to the technical field of blockchain, and in particular to a blockchain node, a system and a method for allocating copies of digital data. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Blockchain technology is gradually applied to all aspects of life such as entertainment, medical care, and finance. The digital data formed after the digitization of physical data such as film and television copyrights, health records, and financial reports is rapidly expanding. The demand for supporting distributed storage of digital data is increasing. more and more urgent. [0004] The inventors of the present disclosure found that due to limitations in block size, network communication, etc., most alliance chain platforms in the industry do not support the storage of digital data on the chain, bu...

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Problems solved by technology

[0004] The inventors of the present disclosure found that due to limitations in block size, network communication, etc., most alliance chain platforms in the industry do not support the storage of digital data on the chain, but adopt the way of storing digital data off-chain: (1) Centralized storage , storing digital data in a data center has a high risk of centralization, and this method is contrary to the decentralization idea of ​​the blockchain; (2) distributed storage of digital data, and deploying a Unified digital data copy scheduling component, based on the CFT algorithm to distribute digital data copies among multiple nodes, this method alleviates the centralization of data storage to a certain extent, but in this way, a master node decides the copy distribution The process still cannot fully conform to the idea of ​​decentralization, and has high performance requirements for nodes; moreover, RPC (Remote Procedure Call, remote procedure call) communication method is adopted between nodes, and the stability of this communication method in cross-local area network communication , delay and other aspects have deficiencies

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