CN106534273A - Block chain metadata storage system, and storage method and retrieval method thereof - Google Patents
Block chain metadata storage system, and storage method and retrieval method thereof Download PDFInfo
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- CN106534273A CN106534273A CN201610930562.5A CN201610930562A CN106534273A CN 106534273 A CN106534273 A CN 106534273A CN 201610930562 A CN201610930562 A CN 201610930562A CN 106534273 A CN106534273 A CN 106534273A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
- H04L67/5651—Reducing the amount or size of exchanged application data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
- G06F3/0607—Improving or facilitating administration, e.g. storage management by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
- G06F3/0644—Management of space entities, e.g. partitions, extents, pools
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
Abstract
The invention discloses a block chain metadata storage system, and a storage method and a retrieval method thereof. The system comprises at least one main node and a plurality of secondary nodes which are respectively connected with the Internet and construct a distributed shared network via a block chain. The main node a data receiving module used for receiving source data from the outside; a distributed storage module connected with the data receiving module, and used for storing the source data in a distributed manner; a dimensionality reduction and preservation module connected with the distributed storage module, and used for performing preservation operation on metadata to form a data fingerprint after the metadata is formed by performing dimensionality reduction on the source data; and a data storage module connected with the dimensionality reduction and preservation module, and used for writing the data fingerprint into the block chain and performing whole network issue by using a consensus process of the block chain. Each secondary node comprises a data consensus module used for receiving and storing the data fingerprint issued by the block chain and completing the consensus process of the block chain.
Description
Technical field
The present invention relates to data storage and retrieval field, more particularly to a kind of storage system of metadata, storage and retrieval
Method.
Background technology
Block chain is the authentic data storehouse that a decentralization goes that the collective for trusting safeguards, distributed network is block chain
Infrastructure, the data produced on each node are broadcast to other nodes by distributed network, and other nodes pass through workload
The authenticity for proving to verify data.Distributed network ensures block chain decentralization, can not distort, characteristic can be recalled before
Carry, in bit coin network, just because of being distributed in the checking node in the whole world, just cause the proof of work mechanism of bit coin
Get the nod, also just allow people to recognize the value of block chain.
Distributed network is the basis of block chain, the identical and each node being connected in distributed network is stored with
Data trade is recorded, that is, each nodes records identical " account " is then the main feature of block chain, it is ensured that complete
Net " account ", data just must be synchronized to each node at any time, and ensure that the uniformity of data.But should in actual
With in system, business datum may be very huge, especially including video, the data of audio frequency, easily tens, and what is had is even up to a hundred
Million, so huge data are transmitted in a network, very high to bandwidth requirement, and convergence so big in the whole network into
" account ", then this account book can be very huge, and individual node is it is difficult to ensure that have enough memory capacity to store.Even if now
Bit coin network, the capacity of account book still reaches more than 4G after optimization, and with the carrying out of ore deposit is dug, the capacity of account book exists
Continue to expand, a common PC completes whole account book to download to be needed, up to tens hours, to have had a strong impact on Consumer's Experience,
This not only constitutes very big challenge to the penetration and promotion of block chain, and causes applicable cases of the block chain on business system
Become more acute.
Corresponding with data storage is data retrieval, the how quick-searching in huge " account " data, in block
Also stern challenge is faced with chain distributed network.
Therefore it provides a kind of method and system that ensure that the storage and retrieval of Large Copacity metadata on block chain become
Urgent problem in the industry.
The content of the invention
It is an object of the invention to provide a kind of block chain metadata storage system and its storage method and search method, its
Distributed memory system can not only be introduced to store big data, while can also be by block chain of restoring after Data Dimensionality Reduction, just
Information needed for party in request's collection.
First purpose of the present invention is to provide a kind of block chain metadata storage system, including each connection internet
At least one host node and several vice-nodes, at least one host node and several vice-nodes construct composition by block chain
Cloth shares network, wherein, at least one host node includes：Data reception module, which is used to receive from outside source data；
Distributed storage module, which is connected with data reception module, and the source data for data reception module is transmitted is distributed
Formula is stored；Dimensionality reduction saves module from damage, and which is connected with distributed storage module, for by the source data of distributed storage module transfer
Carry out dimensionality reduction to operate to be formed after metadata, then carry out saving from damage operation to metadata to form data fingerprint；Data memory module,
Which is saved module from damage with dimensionality reduction and is connected, for data fingerprint is write in block chain；And first data common recognition module, which is used for
Data fingerprint is carried out the whole network to issue to realize the common recognition process of block chain；Several vice-nodes include：Data common recognition module, its
For receiving and data fingerprint that memory block chain is issued is completing the common recognition process of block chain.
Wherein, source data is referred to needs data to be saved, document, voice, video or record information etc..
Additionally, distributed storage module adopts extendible system architecture, storage is shared using multiple stage storage server negative
Lotus, positions storage information using location server.Distributed storage builds a distributed file system in numerous servers,
Realize the operational data storage of correlation again in this distributed file system.Distributed file system refers to file system management
Physical memory resources be not necessarily directly connected on the local node, but be connected with node by computer network.It is distributed
File system can include:Lustre, Hadoop, MogileFS, FreeNAS, FastDFS, MooseFS, pNFS etc., preferably
Ground, distributed storage module are set as using FastDFS distributed file systems.
Selectively, host node also includes：The Nginx for carrying out load balancing being connected with distributed storage module
Component and the ATS components being connected between Nginx components and data memory module.
Preferably, the dimensionality reduction of data is saved operation from damage and is referred to market demand HASH algorithms, wherein, HASH algorithms are will be any
The binary value of length is mapped as the binary value of shorter regular length, and this little binary value is referred to as cryptographic Hash.Hash
Value is the unique and extremely compact numerical value representation of one piece of data.If hashing one section of plaintext and even only changing the paragraph
One it is alphabetical, subsequent Hash all will produce different values.Two different inputs of the hash for same value are found,
It is impossible in calculating, so the cryptographic Hash of data is similar in appearance to " fingerprint ", the HASH value quilts obtained Jing after HASH algorithm process
Referred to as " fingerprint " value, such that it is able to the integrality of inspection data.HASH algorithms include：MD2, MD4, MD5 and SHA-1.More preferably
Ground, the dimensionality reduction of the present invention and to save operating and setting from damage be to source data application SHA-1 algorithms.
Preferably, data fingerprint is set as including：This source data application SHA-1 algorithm obtain as metadata
HASH values, the timestamp of this source data application SHA-1 algorithm, the digital signature of this source data application SHA-1 algorithm and
The data fingerprint of last time metadata.
Preferably, host node also includes：Fingerprint retrieves module, and which is connected with data memory module, for retrieving storage
Data fingerprint in block chain with obtain retrieve data fingerprint.
Preferably, host node and vice-node include authentication module, and which is used for whether checking retrieval data fingerprint to occur
Distort.
Second object of the present invention is to provide a kind of storage method of above-mentioned block chain metadata storage system, its bag
Include：Host node is received from outside source data, and source data is carried out distributed storage；Host node will carry out distributed storage
Source data carry out dimensionality reduction and operate to be formed after metadata, then carry out saving from damage operation to metadata to form data fingerprint；Main section
Point writes data fingerprint in block chain, carries out the whole network issue using the common recognition process of block chain；And vice-node is received and is deposited
Store up the data fingerprint that the block chain is issued.
Preferably, dimensionality reduction operating and setting is to metadata application SHA-1 algorithms.
Preferably, data fingerprint is set as including：Metadata that this source data application SHA-1 algorithm is obtained, this secondary source
The timestamp of market demand SHA-1 algorithms, the digital signature of this source data application SHA-1 algorithm and last time metadata
Data fingerprint.
Third object of the present invention is to provide a kind of fingerprint retrieval method of above-mentioned block chain metadata storage system,
Which includes：On host node enter line retrieval to target data fingerprint to obtain retrieval data fingerprint；In host node and it is connected to area
Verify to retrieving data fingerprint in several vice-nodes in block chain；And treat host node and several vice-nodes to retrieval
After data fingerprint verifies consistency ration more than 80%, judge that retrieval data fingerprint is distorted, complete fingerprint retrieving.
The invention has the beneficial effects as follows：(1), host node introduces distributed memory system to store such as audio frequency, video class
Big data quantity source data, source data carried out dimensionality reduction again then save the data fingerprint to be formed from damage to be stored in block chain, and lead to
The common recognition process of block chain is crossed by data fingerprint distributed storage in each vice-node, substantially reduce and be stored in block chain
Data volume, alleviate block chain data burden；(2) just it is changed into block chain after, source data is saved from damage by dimension-reduction algorithm dimensionality reduction
Acceptable size of data, and during data syn-chronization, the requirement to bandwidth is greatly reduced, to distributed node
On memory requirement be greatly reduced；(3), using the retrieval mode of centralization, on the premise of data consistency is ensured, only need
Data fingerprint is retrieved on the primary node, it is not necessary to carry out the whole network retrieval, so as to avoid unnecessary bandwidth cost, protect
The speed of card data retrieval；(4) after, completing data fingerprint retrieval each time, it is required for being verified in the whole network first, it is ensured that inspection
The data fingerprint that rope is obtained is not tampered with, and can just use, and the security of data has been effectively ensured.
Description of the drawings
Fig. 1 is the organigram of the block chain metadata storage system of the present invention.
Fig. 2 is the composition schematic diagram of the data fingerprint of the present invention.
Fig. 3 is the schematic flow sheet of the storage method of the block chain metadata storage system of the present invention.
Fig. 4 is the schematic flow sheet of the search method of the block chain metadata storage system of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
First, Fig. 1 is refer to, used as a kind of non-limiting example, the block chain metadata storage system of the present invention includes
Respective host node P and n vice-node S1, S2, S3 ... Sn of connection internet, host node P and vice-node S1, S2,
S3 ... Sn are configured to Distributed sharing network by block chain C.In the present invention, host node and vice-node are areas in logic
Not, host node can send " heartbeat ", and vice-node need not send " heartbeat ", meanwhile, host node can receive the business of outside
Data, and vice-node does not receive the business datum of outside.Wherein, " heartbeat " is that net is carried out between host node and several vice-nodes
A kind of mode of network detection, which is used for detecting the connectedness between host node and vice-node.
In the non-limiting example, host node P includes：Data reception module 100, distributed storage module 200, dimensionality reduction
Save module 300, data memory module 400 and the first data common recognition module 700 from damage.Wherein, data reception module 100 is received and
From the outside business datum as source data, data reception module 100 is then transmitted distributed storage module 200 the source number for coming
According to carrying out distributed storage.In the present invention, for the storage of the source data of the big file such as audio frequency, video is divided using FastDFS
Cloth file system is stored, so as to be applied to the big file such as audio frequency and video.After distributed storage is completed, saved from damage using dimensionality reduction
The source data that distributed storage module 200 is transmitted by module 300 first carries out dimensionality reduction and forms metadata, and then again metadata is carried out
Save operation from damage, so as to form data fingerprint.And the data fingerprint write area that data memory module 400 is formed after then save from damage dimensionality reduction
In block chain, then recycle the first data common recognition module 700 that these data fingerprints are carried out the whole network issue, so as to realize block chain
Common recognition process, while vice-node S1, S2, S3 ... Sn know together module 800 to receive and memory block chain using the second data
These data fingerprints issued, so as to greatly reduce the data storage amount in block chain.
In the non-limiting example, dimensionality reduction saves module 300 from damage to source data application SHA-1 algorithms, the mistake that dimensionality reduction is saved from damage
Journey carries out " compression " similar to source data, and which needs to be pressed based on customizing messages such as data content, file characteristic, timestamps
Contracting.Wherein, as shown in Fig. 2 the data fingerprint of the present invention include that this source data application SHA-1 algorithm obtains as metadata
HASH values, the timestamp of this source data application SHA-1 algorithm, the digital signature of this source data application SHA-1 algorithm, with
And the data fingerprint of last time metadata.So as to this source data has been carried out " solidification ", then regularly issue in block chain,
Acceptance is connected to the supervision of each node in block chain, it is ensured that the security and reliability of data storage in block chain.
Used as a kind of alternative embodiment, host node P also includes that fingerprint retrieves module 500 and authentication module 600, with
This is accordingly provided with authentication module 600 on vice-node S1, S2, S3 ... Sn.Thus, in the premise for ensureing data consistency
Under, when needing the data fingerprint to source data to enter line retrieval, it is only necessary on host node P using fingerprint retrieval module 500 just
The data fingerprint being stored in the block chain of host node P can be retrieved, so as to obtain retrieving data fingerprint, it is not necessary to carry out the whole network
Retrieval, it is to avoid unnecessary broadband expense.But in order to ensure the security of data, the retrieval data fingerprint obtained after retrieval
Needs are verified in the whole network, using the authentication module 600 installed on host node P and n vice-node S1, S2, S3 ... Sn, just
Can verify whether retrieval data fingerprint is distorted, in the case where ensureing that retrieval data fingerprint does not change, just can be with
The metadata is used.
Based on same thought, present invention also offers the storage method of block chain metadata storage system, such as Fig. 3 institutes
Show, in step sl, host node is received from outside source data, and source data is carried out distributed storage.Then, in step
In S2, the source data for carrying out distributed storage is carried out dimensionality reduction and operates to be formed after metadata by host node, then metadata is protected
Full operation, so as to form data fingerprint.In step s3, continue with host node data fingerprint to be write in block chain, utilize
The common recognition process of block chain carries out the whole network issue.Finally, in step s 4, by data fingerprint distributed storage in being connected to block
In n vice-node in chain.
Corresponding with storage method is the search method of block chain metadata storage system, in order in huge block chain
The middle quick-searching for realizing metadata, as shown in figure 4, first, in step slo, enters to target data fingerprint on host node
Line retrieval, so as to obtain retrieval data fingerprint.Then, in step S20, to retrieving number on host node and several vice-nodes
Verified according to fingerprint.Finally, in step s 30, treat that host node and several vice-nodes are consistent to retrieving data fingerprint checking
After sex ratio is more than 80%, then judges that retrieval data fingerprint is distorted, complete the process of fingerprint retrieval.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
Example ", or the description of " some examples " etc. mean that specific features with reference to the embodiment or example description, structure or feature are included
In at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term necessarily pin
To be identical embodiment or example.Additionally, in the case of not conflicting, this can be said by those skilled in the art
The feature of different embodiments or example and different embodiments or example described in bright book is combined and combines.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of block chain metadata storage system, including at least one host node and several chromaffin bodies of each connection internet
Point, at least one host node and described several vice-nodes are configured to Distributed sharing network by block chain, wherein,
At least one host node includes：
Data reception module, which is used to receive from outside source data；
Distributed storage module, which is connected with the data reception module, for the institute for transmitting the data reception module
Stating source data carries out distributed storage；
Dimensionality reduction saves module from damage, and which is connected with the distributed storage module, for by the distributed storage module transfer
The source data carries out dimensionality reduction and operates to be formed after metadata, then carries out saving from damage operation to the metadata and referred to forming data
Line；
Data memory module, which is saved module from damage with the dimensionality reduction and is connected, for the data fingerprint is write the block chain
In；And
First data are known together module, and which is used to for the data fingerprint carrying out the whole network to issue to realize the common recognition of the block chain
Journey；
Described several vice-nodes include：
Second data common recognition module, which is used for the data fingerprint for receiving and storing the block chain issue to complete the area
The common recognition process of block chain.
2. the storage system of block chain metadata as claimed in claim 1, it is characterised in that the distributed storage module sets
It is set to using FastDFS distributed file systems.
3. block chain metadata storage system as claimed in claim 2, it is characterised in that the dimensionality reduction operating and setting is to institute
State source data application SHA-1 algorithms.
4. block chain metadata storage system as claimed in claim 3, it is characterised in that the data fingerprint is set as bag
Include：Metadata that this source data application SHA-1 algorithm is obtained, the timestamp of this source data application SHA-1 algorithm, institute
State the data fingerprint of the digital signature and last time metadata of this source data application SHA-1 algorithm.
5. block chain metadata storage system as claimed in claim 4, it is characterised in that the host node also includes：Fingerprint
Retrieval module, which is connected with the data memory module, is stored in the data fingerprint in the block chain to obtain for retrieval
To retrieval data fingerprint.
6. block chain metadata storage system as claimed in claim 5, it is characterised in that the host node and the vice-node
Include authentication module, the authentication module is used to verify whether the retrieval data fingerprint occurred to distort.
7. a kind of storage method of the block chain metadata storage system as described in claim 1～6 is arbitrary, it is characterised in that
Including：
Host node is received from outside source data, and the source data is carried out distributed storage；
The source data for carrying out distributed storage is carried out dimensionality reduction and is operated to be formed after metadata by host node, then to first number
Operated according to carrying out saving from damage to form data fingerprint；
Host node writes the data fingerprint in block chain, carries out the whole network issue using the common recognition process of the block chain；With
And
Vice-node receives and stores the data fingerprint that the block chain is issued.
8. storage method as claimed in claim 7, it is characterised in that the dimensionality reduction operating and setting is to the source data application
SHA-1 algorithms.
9. storage method as claimed in claim 8, it is characterised in that the data fingerprint is set as including：This source data
The metadata that obtains using SHA-1 algorithms, the timestamp of this source data application SHA-1 algorithm, described this source data
Using the data fingerprint of the digital signature and last time metadata of SHA-1 algorithms.
10. a kind of fingerprint retrieval method of the block chain metadata storage system as described in claim 1～6 is arbitrary, its feature
It is, including：
On host node enter line retrieval to target data fingerprint to obtain retrieval data fingerprint；
The retrieval data fingerprint is verified on the host node and several vice-nodes；And
After the host node and described several vice-nodes verify consistency ration more than 80% the retrieval data fingerprint,
Judge that the retrieval data fingerprint is distorted, complete fingerprint retrieving.
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| CN110704858A (en) * | 2019-10-16 | 2020-01-17 | 长春银彩通信息科技有限公司 | Data security storage method and system under distributed environment |
| WO2022109847A1 (en) | 2020-11-25 | 2022-06-02 | Alipay (Hangzhou) Information Technology Co., Ltd. | Blockchain-based trusted platform |
| EP4066475A4 (en) * | 2020-11-25 | 2022-12-21 | Alipay (Hangzhou) Information Technology Co., Ltd. | Blockchain-based trusted platform |
| CN114254150A (en) * | 2022-03-01 | 2022-03-29 | 天津安锐捷技术有限公司 | Distributed video storage system and storage method based on block chain |
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