Multi-version data storage method and device, computer equipment and storage medium

A data storage, multi-version technology, applied in the field of blockchain, can solve the problems of low storage efficiency of blockchain data, and achieve the effect of solving low storage efficiency, reducing disk time and computing time, and short paths

Active Publication Date: 2021-03-30
HANGZHOU QULIAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to address the above technical problems and provide a multi-version data storage method, device, computer equipment and storage media to solve the problem of low efficiency of existing blockchain data storage

Method used

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  • Multi-version data storage method and device, computer equipment and storage medium
  • Multi-version data storage method and device, computer equipment and storage medium
  • Multi-version data storage method and device, computer equipment and storage medium

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] The multi-version data storage method provided by this embodiment can be applied in such as figure 1 application environment in which the client communicates with the server. Among them, clients include but are not limited to various personal computers, notebook computers, smart phones, tablet computers and portable wearable devices. The server can be implemented by an independent server or a server cluster composed of multiple servers.

[002...

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Abstract

The invention relates to the technical field of blockchains, and discloses a multi-version data storage method and device, computer equipment and a storage medium. The method comprises the steps of receiving a modification instruction for specified node data of an MVB tree; copying the first tree node data on the specified node data index path to obtain copied second tree node data; and modifyingthe second tree node data according to the modification instruction, and generating a modified version of the MVB tree according to the node data not in the index path and the modified second tree node data. According to the invention, the storage efficiency of the blockchain data can be improved.

Description

technical field [0001] The present invention relates to the technical field of block chains, in particular to a multi-version data storage method, device, computer equipment and storage medium. Background technique [0002] In the prior art, the traditional Merkle B+ tree is based on the B+ tree plus the process of calculating the node hash, and the nodes of the tree are all stored in a single data file. MPT (Merkle Patricia Tree, Merkle Patricia Tree) combines the characteristics of the prefix tree and the Merkle tree. MPT uses the leveldb database (a database developed by Google) to store data, which has the problem of read and write amplification. In addition, MPT is indexed by prefix, and the reading path is long, resulting in a large number of hash calculations and affecting access performance. Moreover, during the data storage process, frequent encoding and decoding consumes a large amount of computing resources, resulting in poor storage efficiency. Contents of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/22G06F16/23
CPCG06F16/2246G06F16/2282G06F16/2329Y02D10/00
Inventor 邱炜伟李伟黄方蕾张珂杰郑柏川
Owner HANGZHOU QULIAN TECH CO LTD
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