CN106790704A - A kind of method and system for accessing cloud storage file - Google Patents

A kind of method and system for accessing cloud storage file Download PDF

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Publication number
CN106790704A
CN106790704A CN201710106801.XA CN201710106801A CN106790704A CN 106790704 A CN106790704 A CN 106790704A CN 201710106801 A CN201710106801 A CN 201710106801A CN 106790704 A CN106790704 A CN 106790704A
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China
Prior art keywords
domain name
file
cloud storage
name
dns server
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CN201710106801.XA
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CN106790704B (en
Inventor
朱强
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Wangsu Science and Technology Co Ltd
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Wangsu Science and Technology Co Ltd
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Priority to CN201710106801.XA priority Critical patent/CN106790704B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network
    • H04L67/1097Protocols 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]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/06Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/60Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

The invention discloses a kind of method and system for accessing cloud storage file, wherein, methods described includes:The fringe node of content distributing network receives the file acquisition request that client is sent, and file acquisition request is forwarded into cloud storage service device;Wherein, the file acquisition request includes accelerating domain name and file path;The cloud storage service device is based on the acceleration domain name in file acquisition request, and inquiry request is sent to default dns server;The canonical name from locally obtaining the canonical name of the acceleration domain name, and is fed back to the cloud storage service device in response to the inquiry request by the default dns server;The cloud storage service device determines file identification according to the canonical name for receiving, and the cloud storage file that the file identification is pointed to is fed back into the client.The method and system for accessing cloud storage file disclosed by the invention, it is possible to increase the access efficiency and safety of file.

Description

A kind of method and system for accessing cloud storage file
Technical field
The present invention relates to network transmission technology field, more particularly to a kind of method and system for accessing cloud storage file.
Background technology
Current Content distribution network (Content Delivery Network, CDN) can be disposed in whole network framework Many cache node servers lift the problem of user's access experience, mitigation network congestion to reach;However, when user's request File is in cache node during no caching, it is necessary to goes back to source station and obtains file.
Currently, the process for returning source station acquisition file can be with as described below:
Client sends file acquisition and asks to the fringe node of CDN, and the request for example can be http://abc.net/ New_img.jpg, wherein, abc.net can accelerate domain name.Acceleration domain name to Hui Yuan can be pre-configured with fringe node The points relationship of domain name, so, CDN fringe nodes can be by accelerating domain Name acquisition to corresponding time source domain name.Further, Just can be with access originator site server by returning source domain name such that it is able to get corresponding file.
The existing this method for providing file in CDN fringe nodes, it is necessary to be pre-configured with acceleration domain name and return source domain Relation between name, can so increase the load of CDN fringe nodes, cause the less efficient of file acquisition.
The content of the invention
In order to solve problem of the prior art, the embodiment of the invention provides a kind of method for accessing cloud storage file and be System.The technical scheme is as follows:
On the one hand, a kind of method for accessing cloud storage file, methods described includes:
The fringe node of content distributing network receives the file acquisition request that client is sent, and please by the file acquisition Ask and be forwarded to cloud storage service device;Wherein, the file acquisition request includes accelerating domain name and file path;
The cloud storage service device is based on the acceleration domain name in file acquisition request, is sent to default dns server Inquiry request;
The default dns server in response to the inquiry request, from the canonical name for locally obtaining the acceleration domain name, And the canonical name is fed back into the cloud storage service device;
The cloud storage service device determines file identification according to the canonical name for receiving, and by the file identification The cloud storage file of sensing feeds back to the client.
Further, the default dns server is in response to the inquiry request, from locally obtaining the acceleration domain name The specific steps of canonical name include:
The default dns server extracts the acceleration domain name from the inquiry request;
The canonical name that the default dns server traversal is locally stored, and obtain the alias comprising the acceleration domain name Record.
Further, the canonical name in the default dns server is generated in the following manner:
Client sends the request to create for the record that Makes Alias, the request to create to the default dns server Include target domain name and alias;
The default dns server whether there is the canonical name of the alias in local search;
If not existing, the target domain name is defined as institute locally adding the alias by the default dns server The domain name of alias sensing is stated, and the IP address of sensing is determined for the target domain name;
The default dns server creates successful keying to the client feedback canonical name.
Further, methods described also includes:
If locally there is the canonical name of the alias, the default dns server deletes the canonical name of the alias And corresponding IP address points to record;
The target domain name is defined as the domain name that the alias is pointed to by the default dns server, and is the target Domain name determines the IP address pointed to.
Further, the cloud storage service device determines the specific step of file identification according to the canonical name for receiving Suddenly include:
The cloud storage service device extracts the target domain name that the acceleration domain name is pointed to from the canonical name;
The cloud storage service device extracts the file path from file acquisition request;
The cloud storage service device is based on the target domain name and the file path builds the file identification.
On the other hand, a kind of system for accessing cloud storage file, the system includes client, the side of content distributing network Edge node, cloud storage service device and default dns server, wherein:
The fringe node of the content distributing network, for receiving the file acquisition request that the client is sent, and will The file acquisition request is forwarded to the cloud storage service device;Wherein, file acquisition request include accelerating domain name with File path;
The cloud storage service device, for based on the acceleration domain name in file acquisition request, being taken to the default DNS Business device sends inquiry request;The canonical name sent according to the default dns server determines file identification, and by the file Identify the cloud storage file for pointing to and feed back to the client;
The default dns server, in response to the inquiry request, from the alias for locally obtaining the acceleration domain name Record, and the canonical name is fed back into the cloud storage service device.
Further, the default dns server includes:
Domain name extraction unit, for extracting the acceleration domain name from the inquiry request;
Canonical name Traversal Unit, for traveling through the canonical name being locally stored, and obtains comprising the acceleration domain name Canonical name.
Further, the default dns server includes:
Request to create receiving unit, for receiving the request to create for the record that Makes Alias that the client is sent, The request to create includes target domain name and alias;
Record queries unit, the canonical name for whether there is the alias in local search;
Newly-built unit, if for not existing, locally adding the alias, and by the target domain name be defined as it is described not The domain name that name is pointed to, and the IP address of sensing is determined for the target domain name;
Keying transmitting element, for creating successful keying to the client feedback canonical name.
Further, the default dns server also includes:
Record deletion unit, if for the canonical name that locally there is the alias, deleting the canonical name of the alias And corresponding IP address points to record;
Record generation unit, for the target domain name to be defined as into the domain name that the alias is pointed to, and is the target Domain name determines the IP address pointed to.
Further, the cloud storage service device includes:
Target domain name extraction unit, for extracting the target domain name that the acceleration domain name is pointed to from the canonical name;
File path extraction unit, for extracting the file path from file acquisition request;
File identification construction unit, for building the file identification based on the target domain name and the file path.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is:The present invention is deposited by default dns server Storage accelerates the canonical name of domain name, so, when client initiates file acquisition to CDN fringe nodes asks, CDN fringe nodes This document acquisition request directly can be forwarded to cloud storage service device, and be taken by the default DNS by cloud storage service device The target domain name for accelerating domain name to point in business device inquiry file acquisition request.Obtain accelerate domain name point to target domain name it Afterwards, the file path in file acquisition request just can be combined, the file identification for obtaining file is generated.By the file Mark, cloud storage service device just can be to file of the client feedback needed for it.Therefore, the CDN edges section in the present invention Point need not be pre-configured with the relation for accelerating domain name and returning between source domain name, so as to alleviate the load of CDN fringe nodes, Jin Erti The efficiency of file acquisition high.Additionally, the default dns server can be privately owned dns server, the privately owned DNS clothes Business device can be deployed in Intranet in the lump with cloud storage service device, so as to improve the efficiency and security of file acquisition.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.
Fig. 1 is the method flow diagram of access cloud storage file in the embodiment of the present invention one;
Fig. 2 is the flow chart of default dns server addition canonical name in the embodiment of the present invention one;
Fig. 3 is the method flow diagram of acquisition canonical name in the embodiment of the present invention one;
Fig. 4 is the method flow diagram of record of Making Alias in the embodiment of the present invention one;
Make Alias the interactive schematic diagram of record in Fig. 5 embodiment of the present invention one;
Fig. 6 is the system structure diagram of offer cloud store files in the embodiment of the present invention two.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention Formula is described in further detail.
Embodiment one
Fig. 1 and Fig. 2 is referred to, the embodiment of the present application discloses a kind of method for accessing cloud storage file, and methods described includes:
S1:The fringe node of content distributing network receives the file acquisition request that client is sent, and the file is obtained Take request and be forwarded to cloud storage service device;Wherein, the file acquisition request includes accelerating domain name and file path.
In the present embodiment, client can be fixed by unified resource to the file acquisition request that CDN fringe nodes send Position accords with (Uniform Resource Locator, URL) to represent.For example, the file acquisition request can be http:// Abc.net/new_img.jpg, wherein, abc.net can accelerate domain name, and new_img.jpg can be file path.
In the present embodiment, after CDN fringe nodes receive the file acquisition request, the request can be forwarded To cloud storage service device.
S2:The cloud storage service device is based on the acceleration domain name in file acquisition request, is sent out to default dns server Send inquiry request.
S3:The default dns server is remembered in response to the inquiry request from the alias for locally obtaining the acceleration domain name Record, and the canonical name is fed back into the cloud storage service device.
In the present embodiment, the cloud storage service device can extract the acceleration domain name in the file acquisition request, and During the acceleration domain name made an addition into inquiry request, send to default dns server, to determine the mesh that the acceleration domain name is pointed to Mark domain name.
In the present embodiment, the default dns server can be privately owned dns server, the privately owned dns server Can be deployed in Intranet in the lump with cloud storage service device.Each acceleration can be in advance added with the default dns server The canonical name of domain name.By accelerating the canonical name of domain name, such that it is able to inquire the target domain name for accelerating domain name to point to.
Specifically, Fig. 3 is referred to, the default dns server can be according to following steps from locally obtaining the acceleration The canonical name of domain name:
S31:The default dns server extracts the acceleration domain name from the inquiry request;
S32:The canonical name that the default dns server traversal is locally stored, and obtain comprising the acceleration domain name Canonical name.
In the present embodiment, acceleration domain name can generally be indicated in the canonical name for being stored in default dns server.Cause This, can extract the acceleration domain name, and travel through the canonical name being locally stored from the inquiry request.Once canonical name In include the acceleration domain name, then the canonical name can serve as it is described acceleration domain name canonical name.
In the present embodiment, client can Make Alias record in default dns server in advance.Specifically, please join Fig. 4 and Fig. 5 is read, the process of the record that Makes Alias can include:
S311:Client sends the request to create for the record that Makes Alias, the establishment to the default dns server Request includes target domain name and alias;
S312:The default dns server whether there is the canonical name of the alias in local search;
S313:If not existing, the default dns server is locally adding the alias and the target domain name is true It is set to the domain name that the alias is pointed to, and the IP address of sensing is determined for the target domain name;
S314:The default dns server creates successful keying to the client feedback canonical name.
In the present embodiment, the Make Alias request to create of record of the user that client sends can be RESTful API Request.Wherein, client can be by HTTP verbs:POST realizes the record that Maked Alias in default dns server.Should The main body of POST request can include target domain name and alias.For example, cname/ can be included in the main body of the POST request Abc.net/abc.net.s3.wangsu.com, wherein, abc.net.s3.wangsu.com is target domain name, and abc.net can Think alias.
In the present embodiment, whether default dns server can possess the canonical name of the alias in local search.Such as Fruit do not exist, then can in the default dns server the newly-built alias canonical name.In actual applications, it is described Canonical name can be CNAME records, in newly-built canonical name, in addition it is also necessary to add A records, and the A records can realize domain Points relationship of the name to IP address.Specifically, it is assumed that abc.net.s3.wangsu.com point to IP address be 172.16.0.1, then the A records of addition can be abc.net.s3.wangsu.com A 172.16.0.1;The alias CNAME records can be abc.net CNAME abc.net.s3.wangsu.com.So, CNAME records and A with the addition of After record, the establishment process of canonical name just can be completed.The default dns server then can be to the client feedback Canonical name creates successful keying.The keying can be 200 in RESTful frameworks.
In the present embodiment, if locally there is the canonical name of the alias, the default dns server can delete institute The canonical name and corresponding IP address for stating alias point to record.After canonical name and IP address sensing record is deleted, The target domain name can be defined as the domain name that the alias is pointed to, and the IP address of sensing is determined for the target domain name.
S4:The cloud storage service device determines file identification according to the canonical name for receiving, and by the file Identify the cloud storage file for pointing to and feed back to the client.
In the present embodiment, dns server is preset after the canonical name that inquiry obtains the acceleration domain name, can be by Canonical name feeds back to cloud storage service device.So, the cloud storage service device can extract described from the canonical name The target domain name for accelerating domain name to point to.For example, abc.net.s3.wangsu.com can be the target domain name that abc.net is pointed to. The target domain name just can be the corresponding bucket name of file storage location.Then, the cloud storage service device can be from the file Obtain in asking and extract the file path.For example, the file path is new_img.jpg.So, the cloud storage service Device can build the file identification based on the target domain name and the file path.Specifically, can be by the aiming field Name and the file path are spliced, and form file identification:Abc.net.s3.wangsu.com/new_img.jpg, this article Part mark can point to a file in cloud storage service device.So, cloud storage service device can refer to the file identification To cloud storage file feed back to the client so that complete file offer process.
Embodiment two
Refer to Fig. 6, the application is also disclosed a kind of system for accessing cloud storage file, the system include client 100, The fringe node 200 of content distributing network, cloud storage service device 300 and default dns server 400.
Wherein, the fringe node 200 of the content distributing network, obtains for receiving the file that the client 100 is sent Request is taken, and file acquisition request is forwarded to the cloud storage service device 300;Wherein, in the file acquisition request Including accelerating domain name and file path.
The cloud storage service device 300, for based on the acceleration domain name in file acquisition request, to described default Dns server 400 sends inquiry request;File identification is determined according to the canonical name that the default dns server 400 is sent, And the cloud storage file that the file identification is pointed to is fed back into the client 100.
The default dns server 400, in response to the inquiry request, from locally obtaining the acceleration domain name Canonical name, and the canonical name is fed back into the cloud storage service device 300.
In the application one embodiment, the default dns server 400 includes:
Domain name extraction unit, for extracting the acceleration domain name from the inquiry request;
Canonical name Traversal Unit, for traveling through the canonical name being locally stored, and obtains comprising the acceleration domain name Canonical name.
In the application one embodiment, the default dns server includes:
Request to create receiving unit, for receiving the request to create for the record that Makes Alias that the client is sent, The request to create includes target domain name and alias;
Record queries unit, the canonical name for whether there is the alias in local search;
Newly-built unit, if for not existing, locally adding the alias, and by the target domain name be defined as it is described not The domain name that name is pointed to, and the IP address of sensing is determined for the target domain name;
Keying transmitting element, for creating successful keying to the client feedback canonical name.
In the application one embodiment, the default dns server also includes:
Record deletion unit, if for the canonical name that locally there is the alias, deleting the canonical name of the alias And corresponding IP address points to record;
Record generation unit, for the target domain name to be defined as into the domain name that the alias is pointed to, and is the target Domain name determines the IP address pointed to.
In the application one embodiment, the cloud storage service device includes:
Target domain name extraction unit, for extracting the target domain name that the acceleration domain name is pointed to from the canonical name;
File path extraction unit, for extracting the file path from file acquisition request;
File identification construction unit, for building the file identification based on the target domain name and the file path.
Therefore, the beneficial effect that technical scheme provided in an embodiment of the present invention is brought is:The present invention is by presetting DNS Server storage accelerates the canonical name of domain name, so, when client initiates file acquisition to CDN fringe nodes asks, CDN This document acquisition request directly can be forwarded to cloud storage service device by fringe node, and by cloud storage service device by described pre- If the target domain name for accelerating domain name to point in dns server inquiry file acquisition request.Obtaining the mesh that acceleration domain name is pointed to After mark domain name, the file path in file acquisition request just can be combined, generate the file identification for obtaining file.Pass through The file identification, cloud storage service device just can be to file of the client feedback needed for it.Therefore, in the present invention CDN fringe nodes need not be pre-configured with the relation for accelerating domain name and returning between source domain name, so as to alleviate the negative of CDN fringe nodes Carry, and then improve the efficiency of file acquisition.Additionally, the default dns server can be privately owned dns server, the private Some dns servers can be deployed in Intranet in the lump with cloud storage service device, so as to improve the efficiency and peace of file acquisition Quan Xing.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
System embodiment described above is only schematical, wherein the unit illustrated as separating component can To be or may not be physically separate, the part shown as unit can be or may not be physics list Unit, you can with positioned at a place, or can also be distributed on multiple NEs.It can according to the actual needs be selected In some or all of module realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying creativeness Work in the case of, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each implementation method can Realized by the mode of software plus required general hardware platform, naturally it is also possible to by hardware.Based on such understanding, on Stating the part that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, should Computer software product can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers Order is used to so that a computer equipment (can be personal computer, server, or network equipment etc.) performs each implementation Method described in some parts of example or embodiment.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims (10)

1. it is a kind of access cloud storage file method, it is characterised in that methods described includes:
The fringe node of content distributing network receives the file acquisition request that client is sent, and file acquisition request is turned It is sent to cloud storage service device;Wherein, the file acquisition request includes accelerating domain name and file path;
The cloud storage service device is based on the acceleration domain name in file acquisition request, is sent to default dns server and inquired about Request;
The default dns server in response to the inquiry request, from the canonical name for locally obtaining the acceleration domain name, and will The canonical name feeds back to the cloud storage service device;
The cloud storage service device determines file identification according to the canonical name for receiving, and the file identification is pointed to Cloud storage file feed back to the client.
2. the method for accessing cloud storage file according to claim 1, it is characterised in that the default dns server rings Inquiry request described in Ying Yu, includes from the specific steps of the canonical name for locally obtaining the acceleration domain name:
The default dns server extracts the acceleration domain name from the inquiry request;
The canonical name that the default dns server traversal is locally stored, and obtain the canonical name comprising the acceleration domain name.
3. it is according to claim 1 access cloud storage file method, it is characterised in that in the default dns server Canonical name generate in the following manner:
Client sends the request to create for the record that Makes Alias to the default dns server, is wrapped in the request to create Include target domain name and alias;
The default dns server whether there is the canonical name of the alias in local search;
If not existing, the default dns server locally adding the alias, and by the target domain name be defined as it is described not The domain name that name is pointed to, and the IP address of sensing is determined for the target domain name;
The default dns server creates successful keying to the client feedback canonical name.
4. it is according to claim 3 access cloud storage file method, it is characterised in that methods described also includes:
If locally there is the canonical name of the alias, the default dns server delete the alias canonical name and Corresponding IP address points to record;
The target domain name is defined as the domain name that the alias is pointed to by the default dns server, and is the target domain name It is determined that the IP address pointed to.
5. it is according to claim 1 access cloud storage file method, it is characterised in that the cloud storage service device according to The canonical name for receiving determines that the specific steps of file identification include:
The cloud storage service device extracts the target domain name that the acceleration domain name is pointed to from the canonical name;
The cloud storage service device extracts the file path from file acquisition request;
The cloud storage service device is based on the target domain name and the file path builds the file identification.
6. it is a kind of access cloud storage file system, it is characterised in that the system include client, the side of content distributing network Edge node, cloud storage service device and default dns server, wherein:
The fringe node of the content distributing network, for receiving the file acquisition request that the client is sent, and will be described File acquisition request is forwarded to the cloud storage service device;Wherein, the file acquisition request includes accelerating domain name and file Path;
The cloud storage service device, for based on the acceleration domain name in file acquisition request, to the default dns server Send inquiry request;The canonical name sent according to the default dns server determines file identification, and by the file identification The cloud storage file of sensing feeds back to the client;
The default dns server, in response to the inquiry request, from the alias note for locally obtaining the acceleration domain name Record, and the canonical name is fed back into the cloud storage service device.
7. it is according to claim 6 access cloud storage file system, it is characterised in that the default dns server bag Include:
Domain name extraction unit, for extracting the acceleration domain name from the inquiry request;
Canonical name Traversal Unit, for traveling through the canonical name being locally stored, and obtains the alias comprising the acceleration domain name Record.
8. it is according to claim 6 access cloud storage file system, it is characterised in that the default dns server bag Include:
Request to create receiving unit, it is described for receiving the request to create for the record that Makes Alias that the client is sent Request to create includes target domain name and alias;
Record queries unit, the canonical name for whether there is the alias in local search;
Newly-built unit, if for not existing, locally adding the alias, and the target domain name is defined as into the alias referring to To domain name, and be the target domain name determine point to IP address;
Keying transmitting element, for creating successful keying to the client feedback canonical name.
9. it is according to claim 8 access cloud storage file system, it is characterised in that the default dns server is also Including:
Record deletion unit, if for the canonical name that locally there is the alias, delete the alias canonical name and Corresponding IP address points to record;
Record generation unit, for the target domain name to be defined as into the domain name that the alias is pointed to, and is the target domain name It is determined that the IP address pointed to.
10. it is according to claim 6 access cloud storage file system, it is characterised in that the cloud storage service device bag Include:
Target domain name extraction unit, for extracting the target domain name that the acceleration domain name is pointed to from the canonical name;
File path extraction unit, for extracting the file path from file acquisition request;
File identification construction unit, for building the file identification based on the target domain name and the file path.
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CN109040052A (en) * 2018-07-26 2018-12-18 平安科技(深圳)有限公司 A kind of information processing method, terminal and computer-readable medium
CN109240982A (en) * 2017-07-04 2019-01-18 上海万根网络技术有限公司 Document distribution method and system and storage medium
CN109286691A (en) * 2018-09-30 2019-01-29 网宿科技股份有限公司 Information drainage, request transmission, communication acceleration method, drainage and node server
CN109688482A (en) * 2019-01-10 2019-04-26 南京三宝弘正视觉科技有限公司 A kind of device, the system and method for the video management based on mist computing architecture
CN110460652A (en) * 2019-07-26 2019-11-15 网宿科技股份有限公司 A kind of resource acquiring method and edge calculations dispatch server
CN110502333A (en) * 2018-05-16 2019-11-26 杭州海康威视系统技术有限公司 A kind of processing method and cloud storage system of access request
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