CN109885423B - Block chain source data backup method - Google Patents
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- CN109885423B CN109885423B CN201910008629.3A CN201910008629A CN109885423B CN 109885423 B CN109885423 B CN 109885423B CN 201910008629 A CN201910008629 A CN 201910008629A CN 109885423 B CN109885423 B CN 109885423B
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Abstract
The invention discloses a block chain source data backup method, which comprises the following steps: when a certain block node has data to be uplink, the block node receives the data to be uplink and sends the received data to a data storage layer for storage, and meanwhile, hash calculation is carried out on the data to be uplink and a data backup hash value is generated; calculating the block node address which can be backed up by taking the data backup hash value as a key factor through a consistency balancing algorithm; sending the data needing to be uplink to a data storage layer of the block node corresponding to the block node address capable of being backed up for backup; and sending the data backup hash value to a network distribution consensus layer of the block node for storage. The invention effectively reduces the number of backups, can save the resources occupation of the network and the disk to a great extent, can avoid overlarge data redundancy, and improves the consensus speed and the operation efficiency of the block chain system.
Description
Technical Field
The invention relates to the technical field of blockchain, in particular to a blockchain source data backup method.
Background
The blockchain is made up of a plurality of blocknodes, each blocknode having all of the data on the blockchain. Each block node needs to perform data backup in uplink, but the following problems occur in data backup: 1. the redundancy of the data is overlarge, and the backup quantity of one data is equal to the quantity of block nodes; 2. when the data is too large, a large amount of network and disk resources are consumed; 3. when the transmitted backup data is too large, the consensus speed is greatly delayed, and the operation efficiency of the whole block chain system is low. For this reason, the applicant has conducted an advantageous search and study to find a method for solving the above-mentioned problems, and the technical solutions to be described below are produced in this context.
Disclosure of Invention
The invention aims at: the block chain source data backup method for avoiding overlarge data redundancy, saving network and disk resources and improving the consensus speed and the operation efficiency of the block chain is provided.
The technical problems to be solved by the invention can be realized by adopting the following technical scheme:
a blockchain source data backup method, the blockchain being made up of a plurality of blocknodes, each blocknode being divided into a network distribution consensus layer and a data storage layer, the backup method comprising the steps of:
when a certain block node has data to be uplink, the block node receives the data to be uplink and sends the received data to a data storage layer for storage, and meanwhile, a hash algorithm is utilized to carry out hash calculation on the data to be uplink and generate a data backup hash value;
the block node uses the data backup hash value as a key factor to calculate a block node address which can be backed up through a consistency balancing algorithm;
the block node sends the data needing to be uplink to the data storage layer of the block node corresponding to the block node address capable of being backed up for backup;
the block node sends the data backup hash value to a network distribution consensus layer for storage.
In a preferred embodiment of the present invention, when a block node needs to acquire its backup data, the following operations are performed:
the block node uses the data backup hash value stored in the network distribution consensus layer as a key factor and calculates the block node address corresponding to the backup data through a consistency balancing algorithm;
the network distribution consensus layer of the block node sends a request for acquiring the backup data to the network distribution consensus layer of the block node corresponding to the block node address corresponding to the backup data;
the network distribution consensus layer of the block node corresponding to the block node address corresponding to the backup data sends the stored backup data to the data storage layer of the block node according to the acquired backup data request;
the data storage layer of the block node receives the backup data.
Due to the adoption of the technical scheme, the invention has the beneficial effects that: the invention sends the data which needs to be uplink to other limited block nodes for backup, reduces the number of the backup, can save the resources occupation of the network and the disk to a great extent, can avoid the overlarge data redundancy and improves the consensus speed and the operation efficiency of the block chain system.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a blockchain source data backup method of the present invention.
Fig. 2 is a topology diagram between block nodes of the present invention.
FIG. 3 is a flow chart of the present invention for obtaining backup data at a block node.
Detailed Description
The invention is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the invention easy to understand.
Referring to fig. 1 in combination with fig. 2, the blockchain is composed of a plurality of blocknodes, each blocknode is divided into a network distribution consensus Layer (Layer 1) and a data storage Layer (Layer 2), and the blockchain source data backup method of the invention comprises the following steps:
step S1, when a certain block node has data to be uplink, the block node receives the data to be uplink and sends the received data to a data storage layer for storage, and meanwhile, a hash algorithm is utilized to carry out hash calculation on the data to be uplink and generate a data backup hash value. In this embodiment, the hash algorithm may be one of SHA-1 algorithm, SHA-2 algorithm, SHA-3 algorithm, SHA256 algorithm, MD5 algorithm, SHA512 algorithm, RIPEMD160 algorithm. The data backup hash value should be calculated as a hash value with a very short field.
And S2, the block node uses the data backup hash value as a key factor to calculate the block node address which can be backed up through a consistency balancing algorithm. In this embodiment, the consistency balancing algorithm may be one of jumo consistent hash algorithm, libconhash algorithm, hash table algorithm, consistent hashing algorithm.
And step S3, the block node sends the data needing to be uplinked to a data storage layer of the block node corresponding to the block node address capable of being backed up for backup.
And S4, the block node sends the data backup hash value to a network distribution consensus layer for storage.
Referring to fig. 3, when a block node needs to acquire its backup data, the following operations are performed:
and S5, the block node calculates the block node address corresponding to the backup data by using the data backup hash value stored in the network distribution consensus layer as a key factor through a consistency balancing algorithm.
Step S6, the network distribution consensus layer of the block node sends a request for acquiring the backup data to the network distribution consensus layer of the block node corresponding to the block node address corresponding to the backup data.
Step S7, the network distribution consensus layer of the block node corresponding to the block node address corresponding to the backup data sends the stored backup data to the data storage layer of the block node according to the acquired backup data request.
And S8, the data storage layer of the block node receives the backup data, and if the backup data do not belong to the data needing to be backed up after the backup data are used, the backup data are deleted, so that the occupation of disk resources is avoided.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A method for backing up source data of a blockchain, wherein the blockchain is composed of a plurality of blocknodes, each blocknode is divided into a network distribution consensus layer and a data storage layer, and the backup method comprises the following steps:
when a certain block node has data to be uplink, the block node receives the data to be uplink and sends the received data to a data storage layer for storage, and meanwhile, a hash algorithm is utilized to carry out hash calculation on the data to be uplink and generate a data backup hash value;
the block node uses the data backup hash value as a key factor to calculate a block node address which can be backed up through a consistency balancing algorithm;
the block node sends the data needing to be uplink to the data storage layer of the block node corresponding to the block node address capable of being backed up for backup;
the block node sends the data backup hash value to a network distribution consensus layer for storage;
when a certain block node needs to acquire backup data, the following operations are performed:
the block node uses the data backup hash value stored in the network distribution consensus layer as a key factor and calculates the block node address corresponding to the backup data through a consistency balancing algorithm;
the network distribution consensus layer of the block node sends a request for acquiring the backup data to the network distribution consensus layer of the block node corresponding to the block node address corresponding to the backup data;
the network distribution consensus layer of the block node corresponding to the block node address corresponding to the backup data sends the stored backup data to the data storage layer of the block node according to the acquired backup data request;
the data storage layer of the block node receives the backup data.
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| CN109885423B true CN109885423B (en) | 2023-05-23 |
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| CN111191294B (en) * | 2019-12-27 | 2022-05-24 | 诚镌科技(广州)有限公司 | Single-node accounting method, system, equipment and storage medium based on block chain |
| CN111026767B (en) * | 2020-01-04 | 2023-05-26 | 天津金农企业管理咨询合伙企业(有限合伙) | Block chain data storage method and device and hardware equipment |
| CN117319422B (en) * | 2023-11-28 | 2024-02-02 | 天津市城市规划设计研究总院有限公司 | Block chain blocking method and system for Internet of things data in urban planning field |
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