CN117278628A - Data transmission method, device, system, computer equipment and storage medium - Google Patents
Data transmission method, device, system, computer equipment and storage medium Download PDFInfo
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- CN117278628A CN117278628A CN202311526599.8A CN202311526599A CN117278628A CN 117278628 A CN117278628 A CN 117278628A CN 202311526599 A CN202311526599 A CN 202311526599A CN 117278628 A CN117278628 A CN 117278628A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000004590 computer program Methods 0.000 claims description 26
- 238000004806 packaging method and process Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 description 7
- 239000000872 buffer Substances 0.000 description 4
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Classifications
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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
- H04L67/566—Grouping or aggregating service requests, e.g. for unified processing
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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
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/10015—Access to distributed or replicated servers, e.g. using brokers
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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
- H04L67/01—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]
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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
- H04L67/2866—Architectures; Arrangements
- H04L67/2869—Terminals specially adapted for communication
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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
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
Abstract
The application relates to a data transmission method, a data transmission device, a data transmission system, computer equipment and a storage medium. The method comprises the following steps: receiving an access request aiming at a target access object and sent by a terminal in a corresponding subarea; inquiring a target access object from a storage system corresponding to the edge node according to the access request; and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea. The method can improve the data transmission speed and efficiency.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, system, computer device, and storage medium.
Background
With the rapid development of internet technology, a Software-Defined wide area network (SD-WAN) technology appears, after a server and a terminal are networked through the SD-WAN, the terminal accesses an application system of the server in real time through a set transmission channel, text, pictures, audio and video, an upgrade package, an installation program and other high-capacity contents existing in the application system of the server are fixed or updated infrequently, and repeated access with high frequency exists, namely limited transmission channel resources are preempted, normal service access is influenced, and the efficiency of terminal access is influenced due to the limitation of the transmission channel resources, so that the problem of low data transmission efficiency is caused.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a data transmission method, apparatus, computer device, and computer-readable storage medium capable of improving data transmission efficiency.
In a first aspect, the present application provides a data transmission method, applied to an edge node, the method including:
receiving an access request aiming at a target access object and sent by a terminal in a corresponding subarea;
inquiring the target access object from a storage system corresponding to the edge node according to the access request;
and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea.
In one embodiment, before the querying the target access object from the storage system corresponding to the edge node according to the access request, the method includes:
and receiving a target access object meeting preset conditions sent by the service node, and caching the target access object into a storage system.
In one embodiment, the receiving the target access object sent by the service node and meeting the preset condition includes at least one of the following:
receiving a target access object which is transmitted by a service node and accords with preset target file parameters;
Receiving a target access object, the access request times of which meet a preset threshold, sent by a service node;
receiving a data resource packet sent by a service node, wherein the data resource packet is sent by a target transmission channel in a target time period and is derived from a target access address; the data resource package comprises a target access object; the target transmission channel is a transmission channel between the service node and the edge node that satisfies bandwidth resources.
In one embodiment, before the number of access requests sent by the receiving service node meets the target access object of the preset threshold, the method includes:
acquiring the access times of a target access object according to the times of historical access requests sent by a terminal and aiming at the target access object;
comparing the access times with a preset threshold, and if the access times meet the preset threshold, sending the label information of the target access object meeting the preset threshold to the service node.
In one embodiment, the method further comprises:
receiving file data sent by a terminal in a corresponding subarea, and caching the file data in the storage system;
judging whether the current transmission channel meets the transmission condition or not;
Under the condition that the transmission condition is met, compressing, packaging and sending the file data to a service node;
and under the condition that the transmission condition is not met, returning to the step of judging whether the current transmission channel meets the transmission condition.
In a second aspect, the present application further provides a data transmission method, including:
the edge node receives an access request which is sent by a terminal in a corresponding subarea and aims at a target access object; inquiring the target access object from a storage system corresponding to the edge node according to the access request;
if the target access object exists in the storage system, the edge node returns the target access object to the terminal in the subarea;
if the target access object does not exist in the storage system, the edge node forwards the access request to a service node; receiving a target access object returned by the service node, wherein the target access object is obtained based on an access request forwarded by the edge node; and the edge node returns the target access object to the terminal in the subarea.
In a third aspect, the present application further provides a data transmission apparatus, where the apparatus is applied to an edge node, and includes:
The receiving module is used for receiving an access request which is sent by the terminal in the corresponding subarea and aims at the target access object;
the query module is used for querying the target access object from the storage system corresponding to the edge node according to the access request;
and the return module is used for returning the target access object to the terminal in the subarea if the target access object exists in the storage system.
In a fourth aspect, the present application further provides a data transmission system, including: the device comprises edge nodes, service nodes and terminals, wherein the edge nodes are connected with the terminals, and the service nodes are connected with the edge nodes:
the edge node is used for receiving an access request which is sent by the terminal in the corresponding subarea and aims at the target access object; inquiring the target access object from a storage system corresponding to the edge node according to the access request; if the target access object exists in the storage system, returning the target access object to the terminal in the subarea;
and forwarding the access request to a service node; receiving a target access object returned by the service node, wherein the target access object is obtained based on an access request forwarded by the edge node; returning the target access object to the terminal in the subarea;
The service node is used for receiving the access request forwarded by the edge node and sending the target access object to the edge node;
a terminal for sending an access request for a target access object to the edge node in the sub-area; and the target access object returned by the edge node in the corresponding subarea is also received.
In a fifth aspect, the present application also provides a computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
receiving an access request aiming at a target access object and sent by a terminal in a corresponding subarea;
inquiring the target access object from a storage system corresponding to the edge node according to the access request;
and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea.
In a sixth aspect, the present application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
receiving an access request aiming at a target access object and sent by a terminal in a corresponding subarea;
Inquiring the target access object from a storage system corresponding to the edge node according to the access request;
and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea.
The data transmission method, the device, the system, the computer equipment and the storage medium receive the access request which is sent by the terminal in the corresponding subarea and aims at the target access object through the edge node; inquiring a target access object from a storage system corresponding to the edge node according to the access request; and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea. According to the method and the device, the target access object is cached in the corresponding storage system in advance through the edge node, and the target access object is directly returned from the edge node to the terminal according to the access request, so that links of data transmission are reduced, the efficiency of data access is improved, and acceleration in the data transmission process is realized.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for a person having ordinary skill in the art.
FIG. 1 is a diagram of an application environment for a data transmission method in one embodiment;
FIG. 2 is a flow chart of a data transmission method in one embodiment;
FIG. 3 is a flow chart of a target access object meeting a preset condition sent by a receiving service node in one embodiment;
FIG. 4 is a schematic flow chart before receiving a target access object with access request times meeting a preset threshold sent by a service node in one embodiment;
FIG. 5 is a flow chart of a data transmission method according to another embodiment;
FIG. 6 is a flow chart of a data transmission method according to another embodiment;
FIG. 7 is a block diagram of a data transmission device in one embodiment;
fig. 8 is an internal structural diagram of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The data transmission method provided by the embodiment of the application can be applied to an application environment shown in fig. 1, and forms an SD-WAN environment together. The branch terminal communicates with the branch customer premise equipment CPE through a network, which is equivalent to building a local area network based on the branch terminal and the branch customer premise equipment; the headquarter server communicates with the headquarter client head-end equipment (Customer Premise Equipment, CPE) through a network, which is equivalent to setting up a local area network based on the headquarter server and the headquarter client head-end equipment; deploying edge nodes in a branch customer premise equipment CPE; deploying service nodes in a headquarter customer premise equipment CPE; a transmission channel, i.e. a tunnel, isolated from the public network is established between the edge node and the service node. The distance between the branch terminal and the headquarter server may be generally trans-provincial or trans-national. The access request sent by the branch terminal accesses the headquarter server through the edge node. The edge node receives an access request which is sent by a terminal in a corresponding subarea and aims at a target access object; inquiring a target access object from a storage system corresponding to the edge node according to the access request; and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea. The node refers to an access point, a location or a facility connected to the Internet and the cloud or helping other devices to establish connection with the Internet and the cloud, specifically, may refer to a point where two or more different networks establish connection with each other, and may also refer to a point where two or more different communication devices establish connection with each other. The nodes include edge nodes and service nodes. Customer Premise Equipment (CPE) is a mobile signal access device which receives mobile signals and forwards the mobile signals in a wireless WIFI signal. The CPE can convert the high-speed 4G/5G signals into WiFi signals, and the number of mobile terminals capable of supporting simultaneous Internet surfing is also large. The CPE can be widely applied to rural areas, towns, hospitals, units, factories, communities and the like, can be accessed by a wireless network, can save broadband cost and can avoid wiring links. The branch terminal can be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, internet of things equipment and portable wearable equipment, and the internet of things equipment can be smart speakers, smart televisions, smart air conditioners, smart vehicle-mounted equipment and the like. The portable wearable device may be a smart watch, smart bracelet, headset, or the like. The headquarter server may be implemented as a stand-alone server or as a server cluster composed of a plurality of servers.
In an exemplary embodiment, as shown in fig. 2, a data transmission method is provided, and an example of application of the method to the edge node in fig. 1 is described, which includes the following steps S202 to S206. Wherein:
step S202, an access request aiming at a target access object and sent by a terminal in a corresponding subarea is received.
The target access object may be a remote data end that the remote user equipment wants to access, an application program on the remote data end, a network site on the internet, a database storing a large amount of dynamic data, a big data analysis system, and the like, for example, an enterprise application, and the like. In a practical application scenario, the enterprise application may refer to a company website of a certain company, an SSLVPN (Security Socket Layer-SSL) gateway, a Citrix server, a file transfer protocol (File Transfer Protocol, FTP) server, a remote desktop, a game server, and the like. The access request may be a request generated by the terminal and sent to the device where the target access object is located through the network, and may be a domain name request; and the equipment where the target access object is located responds to the access request and returns the corresponding target access object. The sub-area is a local area network built according to internet international address (Internet Protocol Address, IP) addresses of the terminal and the device deploying the edge node, and a distance between the terminal and the device deploying the edge node, for example, a local area network between the terminal and the device deploying the edge node may be built by determining a nearest sub-area according to the IP address of the terminal device, and determining a matched edge site in the sub-area nearest to the terminal device. Wherein the IP address is an internet address, which is a unique IP address worldwide. A local area network refers to a group of network devices and their connected communication networks that are located within the same geographic location. The group of devices can communicate with each other to realize data transmission and sharing. The devices of the local area network comprise computers, servers, printers, routers and the like, and the local area network is connected in a wired mode and a wireless mode.
Optionally, the edge node sends an access request for the target access object by receiving the terminal device in the corresponding sub-area, where the access request may be a domain name request, carries an IP address of the terminal device, and may also carry an IP address of the device where the target access object is located; the domain name resolution server analyzes the access request to obtain the IP address accessed by the terminal, and returns the edge node IP nearest to the terminal, and the edge node receives the access request aiming at the target access object and sent by the terminal in the corresponding subarea.
Step S204, inquiring a target access object from a storage system corresponding to the edge node according to the access request.
Wherein the edge node is a node deployed in a branch customer premise equipment CPE. A node refers to an access point, location, or facility that connects to the Internet and the cloud, or that facilitates other devices to connect to the Internet and the cloud, and may refer to a point where two or more different networks connect to each other, or may refer to a point where two or more different communication devices connect to each other.
Optionally, according to the access request, the edge node queries the target access object from a storage system corresponding to the edge node, where the storage system may be provided by a hard disk in the client front-end device cpe. The edge node monitors the storage system in real time, sets a threshold value of the space utilization rate of the storage system, and when the space utilization rate of the storage system exceeds a preset threshold value, automatically executes deleting the target access object data with the longest storage time of the target access object data and the least access request times of the target access object according to the storage time of the target access object data and the access request times of the target access object, thereby releasing the storage space of the storage system.
Step S206, if the target access object exists in the storage system, the target access object is returned to the terminal in the subarea.
Optionally, if the target access object exists in the storage system, the edge node returns the target access object to the terminal in the sub-area. Because the edge node and the terminal exist in the same subarea, the edge node and the terminal can be in the same local area network, and the data transmission speed is greatly improved.
In the data transmission method, an access request which is sent by a terminal in a corresponding subarea and aims at a target access object is received through an edge node; inquiring a target access object from a storage system corresponding to the edge node according to the access request; and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea. According to the method and the device, the target access object is cached in the corresponding storage system in advance through the edge node, and the target access object is directly returned from the edge node to the terminal according to the access request, so that links of data transmission are reduced, the efficiency of data access is improved, and acceleration in the data transmission process is realized.
In an exemplary embodiment, before querying a target access object from a storage system corresponding to an edge node according to an access request, the method includes: and receiving a target access object meeting preset conditions sent by the service node, and caching the target access object into a storage system.
Wherein, the preset condition can be set according to the characteristics extracted from the target access object, such as capacity size, such as format; the capacity size may be 10M; the format may be audio format, video format, etc.; the preset condition can be dynamically adjusted according to actual conditions, and the preset condition can be set according to the access times of the target access object, the address of the target access object, the transmission channel of the target access object and the tunnel condition.
Optionally, before inquiring the target access object from the storage system corresponding to the edge node, an administrator presets a condition on the server, the server screens the target access object meeting the preset condition and sends the target access object to the service node, the service node sends the target access object to the edge node through the transmission channel, and the edge node receives the target access object meeting the preset condition sent by the service node from the transmission channel and caches the target access object in the storage system. When the terminal sends the same access request for the target access object again, the edge node can directly respond, and the edge node and the terminal exist in the same subarea, so that the data transmission speed is greatly improved.
In this embodiment, by receiving the target access object meeting the preset condition sent by the service node in advance and caching the target access object in the storage system, when the terminal sends the access request for the target access object again, the edge node can directly return the target access request, so that a link of forwarding the request to the service node is not required, and the efficiency of data transmission is improved.
In an exemplary embodiment, as shown in fig. 3, receiving a target access object that meets a preset condition and is sent by a service node includes at least one of steps S302 to S306. Wherein:
step S302, receiving a target access object which is transmitted by a service node and accords with preset target file parameters.
The target access object of the target file parameter may be a file capacity size, an access object of a specific format, and the like, for example, an access object of a video format, and an access object with a capacity greater than 1 gigabyte.
Optionally, the administrator sets access objects of the target file parameters on the server in advance, and sends the access object set carrying the target access objects from the server to the edge node through the service node; the edge node receives the access object set through the transmission channel, and when the edge node detects that a target access object which accords with the preset target file parameter exists in the transmission channel, the target access object which accords with the preset target file parameter is cached to a storage system corresponding to the edge node. When the terminal sends the access request for the target access object again, the edge node responds to the access request, acquires the target access object from the corresponding storage system and returns the target access object to the terminal.
The edge node receives the target access object which is transmitted by the service node and accords with the preset target file parameter in advance and caches the target access object in the storage system, when the terminal transmits the access request of the same target access object again, the edge node can directly respond without a server or the service node which is farther away from the terminal for forwarding the request and then responding, and the data transmission speed is greatly improved because the edge node and the terminal exist in the same subarea.
Step S304, receiving a target access object, the access request times of which are sent by the service node and meet a preset threshold value.
The target access object with the access request times meeting the preset threshold value can be an object with more terminal access times, the target access object can be regarded as a hot spot resource, the hot spot resource can be a hot spot resource preset in advance by an administrator according to the historical access times of the hot spot resource, and can also be a hot spot resource counted by an edge node, and the information of the hot spot resource is automatically sent to a server side, so that the hot spot resource is automatically set.
Optionally, the server side sends the hot spot resource to the service node through a transmission channel, the service node sends the hot spot resource to the edge node through the transmission channel, and the edge node caches the hot spot resource to a corresponding storage system through the hot spot resource manually set or automatically set by the server side, namely, the target access object with the access request times meeting the preset threshold. When the terminal sends the access request of the hot spot resource again, the edge node responds to the access request, and the target access object is obtained from the corresponding storage system and returned to the terminal.
The edge node receives the target access object, the access request times of which are sent by the service node and meet the preset threshold value in advance, and the target access object is cached to the storage system, when the terminal sends the access request of the same target access object again, the terminal can directly respond by the edge node without a server or the service node which are farther away from the terminal for forwarding the request and responding again, and the efficiency of data transmission is improved.
Step S306, receiving a data resource packet sent by a service node, wherein the data resource packet is sent by a target transmission channel in a target time period and is derived from a target access address; the data resource package comprises a target access object; the transmission channel is a channel between the service node and the edge node that satisfies the bandwidth resources.
The data resource package is a large-capacity content which is downloaded from a target access address and comprises but is not limited to texts, pictures, audios and videos, upgrade packages, installation programs and the like; the target time period refers to the idle time of the transmission channel, which is determined according to the use condition of the bandwidth resource of the transmission channel, for example, the time interval from the off-shift to the on-shift on the next day at night. The target transmission channel refers to a transmission channel which accords with resource limitation between the service node and the edge node, and the resource can be bandwidth resource, for example, the transmission channel under idle bandwidth can be used as the target transmission channel, and the transmission channel under specified bandwidth can also be used as the target transmission channel, wherein when the tunnel network occupies less than a certain percentage, the idle bandwidth is determined; designating a smaller specific weight of bandwidth is considered to be designating bandwidth, thereby avoiding taking up excessive network resources.
Alternatively, the administrator may set the target access address on the server in advance, determine the target period of time and the target transmission channel, and manage to set the transmission channel bandwidth resource on the server in advance from 18 hours a day to 6 days a next day, where the terminal accesses the website a in a case where the transmission channel bandwidth resource is lower than thirty percent, where the terminal may designate any at least one terminal. The edge node receives the resource package including but not limited to text, picture, audio and video, upgrade package, installer, etc. downloaded by the service node from the website A, and caches the resource package to the storage system corresponding to the edge node. When the terminal sends the access request for the target access object again, for example, the target access object is a certain video, the edge node responds to the access request to acquire the certain video from the corresponding storage system and returns the certain video to the terminal.
The edge node receives the resource packet sent by the service node in advance and caches the resource packet in the storage system, when the terminal sends the access request of the same target access object again, the edge node can directly respond without a server or the service node which is farther away from the edge node for forwarding the request and responding again, and the efficiency of data transmission is improved; meanwhile, under the condition that the target transmission channel meets the bandwidth resources, the data transmission time can be shortened, the data transmission efficiency is improved, the acceleration of data transmission is realized, the bandwidth resources can be fully utilized, and the utilization rate of the bandwidth resources is increased.
In this embodiment, at least one target access object meeting a condition is received and cached by an edge node, so that a plurality of conditions can be combined, and therefore, the efficiency of data transmission can be improved, and the flexibility of data transmission can be improved.
In an exemplary embodiment, as shown in fig. 4, before receiving a target access object whose number of access requests transmitted by a service node satisfies a preset threshold, the following steps S402 to S404 are included. Wherein:
step S402, according to the times of historical access requests for the target access object sent by the terminal, the access times of the target access object are obtained.
Optionally, before the edge node receives the target access object whose access request number sent by the service node meets the preset threshold, according to the number of historical access requests sent by the terminal for the target access object, the number of access times of the target access object may be counted and obtained based on the periodicity of the timing task.
Step S404, comparing the access times with a preset threshold, and if the access times meet the preset threshold, sending the label information of the target access object meeting the preset threshold to the service node.
Optionally, the edge node compares the access times with a preset threshold, if the access times are greater than the preset threshold, the tag information of the target access object meeting the preset threshold is sent to the service node, the service node forwards the tag information of the target access object to the server, the server queries the corresponding target access object, namely the hot spot resource according to the tag information of the target access object, and sends the hot spot resource to the edge node through a transmission channel between the service node and the edge node, and the edge node caches the target access object.
In this embodiment, the edge node counts the access request of the target access object, and sends the tag information of the target access object greater than the preset threshold to the service node, and the server receives the tag information of the target access object forwarded by the service node and sets the tag information as the hot spot resource, so that the hot spot resource does not need to be set on the server side manually according to the statistics result by an administrator, and the efficiency of data processing is improved.
In an exemplary embodiment, as shown in fig. 5, the data transmission method further includes the following steps S502 to S508. Wherein:
step S502, receiving file data sent by a terminal in a corresponding subarea, and caching the file data in a storage system.
The file data refers to data which is not high in real-time performance but must be transmitted, and may be an application program, a database in which a large amount of dynamic data is stored, a big data analysis system, and the like, for example, a company website of a certain company, an SSLVPN (Security Socket Layer-SSL) gateway, a Citrix server, a file transfer protocol (File Transfer Protocol, FTP) server, a remote desktop, a game server, and the like.
Optionally, when the terminal needs to upload the file data to the server, the terminal may send the data file to an edge node in the corresponding sub-area, that is, the terminal may send the data file to an edge node located in the same local area network, and the edge node receives the file data and caches the file data in the storage system.
Step S504, judging whether the current transmission channel meets the transmission condition.
The transmission condition may be a limitation condition of bandwidth resources or an occupation condition of a tunnel network, or may be a time period estimated according to bandwidth usage resources of a transmission channel.
Optionally, the edge node monitors the bandwidth resource of the current transmission channel, and determines whether the bandwidth resource of the current transmission channel can perform transmission, for example, when the bandwidth resource of the transmission channel is set to be smaller than a certain proportion, the transmission condition is met, or the time period that the bandwidth resource of the transmission channel is smaller than a certain proportion is estimated, and the edge node determines whether the bandwidth resource of the current transmission channel meets the bandwidth resource proportion or the time period that the bandwidth resource proportion meets the requirement.
Step S506, in the case that the transmission condition is met, the file data is compressed, packed and sent to the service node.
Optionally, when the transmission condition is met, for example, when the bandwidth resource of the transmission channel is smaller than a certain proportion, the edge node acquires the file data from the storage system, compresses and packages the file data, and then sends the file data to the service node through the transmission channel, and the service node forwards the compressed file data to the server to complete the process of uploading the data file by the terminal.
In step S508, if the transmission condition is not satisfied, the step of determining whether the current transmission channel satisfies the transmission condition is performed.
Optionally, if the transmission condition is not satisfied, for example, when the bandwidth resource of the transmission channel is greater than a certain proportion, the step of determining whether the current transmission channel satisfies the transmission condition is performed again until the transmission condition is satisfied.
For example, the edge node at the time T0 receives file data sent by a terminal in a corresponding subarea, caches the file data in a storage system and judges whether a current transmission channel meets transmission conditions or not; if the T0 moment meets the transmission condition, compressing, packaging and sending the file data to a service node; if the T0 moment does not meet the transmission condition, waiting until the Tn moment, executing the step of judging whether the current transmission channel meets the transmission condition or not, and compressing, packaging and sending the file data to the service node at the Tn moment until the current transmission channel meets the transmission condition; the step of uploading the data file to the server is done by the service node.
In this embodiment, by receiving the file data sent by the terminal, the file data is sent to the service node when the current transmission channel meets the transmission condition, so that the problem of limitation of the transmission channel resource to the file data transmission can be solved and the efficiency of the file data transmission can be improved when the real-time property of the file data is not high but the file data must be uploaded.
In an exemplary embodiment, as shown in fig. 6, the data transmission method further includes the following steps S602 to S606. Wherein:
step S602, an edge node receives an access request aiming at a target access object, which is sent by a terminal in a corresponding subarea; and inquiring the target access object from the storage system corresponding to the edge node according to the access request.
Optionally, the edge node sends an access request for the target access object by receiving the terminal device in the corresponding sub-area, where the access request may be a domain name request, carries an IP address of the terminal device, and may also carry an IP address of the device where the target access object is located; the domain name resolution server analyzes the access request to obtain the IP address accessed by the terminal, and returns the edge node IP nearest to the terminal, and the edge node receives the access request aiming at the target access object and sent by the terminal in the corresponding subarea. And according to the access request, inquiring a target access object from a storage system corresponding to the edge node, wherein the storage system can be provided by a hard disk in the client front-end equipment cpe. The edge node monitors the storage system in real time, sets a threshold value of the space utilization rate of the storage system, and when the space utilization rate of the storage system exceeds a preset threshold value, automatically executes deleting the target access object data with the longest storage time of the target access object data and the least access request times of the target access object according to the storage time of the target access object data and the access request times of the target access object, thereby releasing the storage space of the storage system.
In step S604, if the target access object exists in the storage system, the edge node returns the target access object to the terminal in the sub-area.
Optionally, if the target access object exists in the storage system, the edge node returns the target access object to the terminal in the sub-area. Because the edge node and the terminal exist in the same subarea, the edge node and the terminal can be in the same local area network, and the data transmission speed is greatly improved.
Step S606, if the target access object does not exist in the storage system, the edge node forwards the access request to the service node; receiving a target access object returned by the service node, wherein the target access object is obtained based on an access request forwarded by the edge node; the edge node returns the target access object to the terminals in the sub-area.
Optionally, if the target access object does not exist in the storage system, the edge node forwards the access request to the service node, the service node forwards the access request to the server, the server responds to the access request and sends the target access object to the service node, the service node transmits the target access object to the edge node through the transmission channel, and the edge node returns the target access object to the terminal in the same local area network.
In this embodiment, the edge node buffers the target access object in the corresponding storage system in advance, and the target access object is directly returned from the edge node to the terminal according to the access request, so that the access request is not required to be forwarded to the service node, the target access object is received from the service node, and the target access object received from the service node is returned to the terminal.
In an exemplary embodiment, according to the number of historical access requests for the target access object sent by the terminal, the edge node may periodically count and acquire the number of accesses of the target access object based on the timing task. The edge node compares the access times with a preset threshold value, if the access times are larger than the preset threshold value, the label information of the target access object meeting the preset threshold value is sent to the service node, the service node forwards the label information of the target access object to the server, the server inquires the corresponding target access object, namely the hot spot resource according to the label information of the target access object, the hot spot resource is sent to the edge node through a transmission channel between the service node and the edge node, and the edge node caches the target access object.
The edge node sends an access request for the target access object by receiving terminal equipment in the corresponding subarea, wherein the access request can be a domain name request, carries an IP address of the terminal equipment and can also carry an IP address of equipment where the target access object is located; the domain name resolution server analyzes the access request to obtain the IP address accessed by the terminal, and returns the edge node IP nearest to the terminal, and the edge node receives the access request aiming at the target access object and sent by the terminal in the corresponding subarea.
And the edge node inquires a target access object from a storage system corresponding to the edge node according to the access request, wherein the storage system can be provided by a hard disk in the client front-end equipment cpe. The edge node monitors the storage system in real time, sets a threshold value of the space utilization rate of the storage system, and when the space utilization rate of the storage system exceeds a preset threshold value, automatically executes deleting the target access object data with the longest storage time of the target access object data and the least access request times of the target access object according to the storage time of the target access object data and the access request times of the target access object, thereby releasing the storage space of the storage system.
And if the target access object exists in the storage system, the edge node returns the target access object to the terminal in the subarea.
At the time of T0, the edge node receives file data sent by a terminal in a corresponding subarea, caches the file data in a storage system and judges whether a current transmission channel meets transmission conditions or not; if the T0 moment meets the transmission condition, compressing, packaging and sending the file data to a service node, and uploading the file data to a server by the service node; if the T0 moment does not meet the transmission condition, waiting until the Tn moment, executing the step of judging whether the current transmission channel meets the transmission condition or not, and compressing, packaging and sending the file data to the service node at the Tn moment until the current transmission channel meets the transmission condition; the step of uploading the data file to the server is done by the service node.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a data transmission device for realizing the above related data transmission method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in one or more embodiments of the data transmission device provided below may refer to the limitation of the data transmission method hereinabove, and will not be repeated herein.
In an exemplary embodiment, as shown in fig. 7, there is provided a data transmission apparatus including: a receiving module 701, a querying module 702 and a returning module 703, wherein:
the receiving module 701 is configured to receive an access request for a target access object sent by a terminal in a corresponding sub-area.
And the query module 702 is configured to query the target access object from the storage system corresponding to the edge node according to the access request.
And the returning module 703 is configured to return the target access object to the terminal in the sub-area if the target access object exists in the storage system.
In an exemplary embodiment, the data transmission apparatus further includes:
the receiving buffer module is used for receiving the target access object meeting the preset condition and transmitted by the service node, and buffering the target access object to the storage system.
In one exemplary embodiment, a receive buffer module includes:
the first receiving unit is used for receiving the target access object which is transmitted by the service node and accords with the preset target file parameter.
The second receiving unit is used for receiving the target access object, the access request times of which are sent by the service node and meet the preset threshold value.
A third receiving unit, configured to receive a data resource packet sent by the service node, where the data resource packet is a data resource packet sent by the service node through the target transmission channel in a target time period and is derived from a target access address; the data resource package comprises a target access object; the target transmission channel is a transmission channel between the service node and the edge node that satisfies the bandwidth resource.
In an exemplary embodiment, the receiving buffer module further includes:
the acquisition request number unit is used for acquiring the access number of the target access object according to the number of the historical access requests for the target access object sent by the terminal.
And the judging and transmitting unit is used for comparing the access times with a preset threshold value, and transmitting the label information of the target access object meeting the preset threshold value to the service node if the access times meet the preset threshold value.
In an exemplary embodiment, the data transmission apparatus further includes:
The file receiving and caching module is used for receiving file data sent by the terminal in the corresponding subarea and caching the file data to the storage system.
The judging module is used for judging whether the current transmission channel meets the transmission condition.
And the file sending module is used for compressing, packaging and sending the file data to the service node under the condition that the transmission condition is met.
And the return execution module is used for returning to execute the step of judging whether the current transmission channel meets the transmission condition or not under the condition that the transmission condition is not met.
In one exemplary embodiment, a data transmission system includes: the system comprises edge nodes, service nodes and terminals, wherein the edge nodes are connected with the terminals, and the service nodes are connected with the edge nodes.
The edge node is used for receiving an access request which is sent by the terminal in the corresponding subarea and aims at the target access object; inquiring a target access object from a storage system corresponding to the edge node according to the access request; and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea.
And is further configured to forward the access request to the service node; receiving a target access object returned by the service node, wherein the target access object is obtained based on an access request forwarded by the edge node; and returning the target access object to the terminal in the subarea.
And the service node is used for receiving the access request forwarded by the edge node and sending the target access object to the edge node.
The terminal is used for sending an access request aiming at the target access object to the edge node in the sub-area where the access request is located; and the system is also used for receiving the target access object returned by the edge node in the corresponding subarea.
The respective modules in the above-described data transmission apparatus may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one exemplary embodiment, a computer device is provided, which may be a server, and the internal structure thereof may be as shown in fig. 8. The computer device includes a processor, a memory, an Input/Output interface (I/O) and a communication interface. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface is connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is for storing the target access object. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a data transmission method.
It will be appreciated by those skilled in the art that the structure shown in fig. 8 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In an embodiment, there is also provided a computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method embodiments described above when the computer program is executed.
In one exemplary embodiment, a computer device is provided comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program performing the steps of:
receiving an access request aiming at a target access object and sent by a terminal in a corresponding subarea;
inquiring a target access object from a storage system corresponding to the edge node according to the access request;
and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea.
In one embodiment, the processor when executing the computer program further performs the steps of:
And receiving a target access object meeting preset conditions sent by the service node, and caching the target access object into a storage system.
In one embodiment, the processor when executing the computer program further performs the steps of:
receiving a target access object which is transmitted by a service node and accords with preset target file parameters; receiving a target access object, the access request times of which meet a preset threshold, sent by a service node; receiving a data resource packet sent by a service node, wherein the data resource packet is sent by a target transmission channel in a target time period and is derived from a target access address; the data resource package comprises a target access object; the target transmission channel is a transmission channel between the service node and the edge node that satisfies the bandwidth resource.
In one embodiment, the processor when executing the computer program further performs the steps of:
acquiring the access times of the target access object according to the times of historical access requests sent by the terminal and aiming at the target access object; comparing the access times with a preset threshold, and if the access times meet the preset threshold, sending the label information of the target access object meeting the preset threshold to the service node.
In one embodiment, the processor when executing the computer program further performs the steps of:
Receiving file data sent by a terminal in a corresponding subarea, and caching the file data in a storage system; judging whether the current transmission channel meets the transmission condition or not; under the condition that the transmission condition is met, compressing, packaging and sending the file data to a service node; and if the transmission condition is not satisfied, returning to the step of judging whether the current transmission channel satisfies the transmission condition.
In one embodiment, the processor when executing the computer program further performs the steps of:
the edge node receives an access request which is sent by a terminal in a corresponding subarea and aims at a target access object; inquiring a target access object from a storage system corresponding to the edge node according to the access request; if the target access object exists in the storage system, the edge node returns the target access object to the terminal in the subarea; if the target access object does not exist in the storage system, the edge node forwards the access request to the service node; receiving a target access object returned by the service node, wherein the target access object is obtained based on an access request forwarded by the edge node; the edge node returns the target access object to the terminals in the sub-area.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
Receiving an access request aiming at a target access object and sent by a terminal in a corresponding subarea;
inquiring a target access object from a storage system corresponding to the edge node according to the access request;
and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and receiving a target access object meeting preset conditions sent by the service node, and caching the target access object into a storage system. In one embodiment, the computer program when executed by the processor further performs the steps of:
receiving a target access object which is transmitted by a service node and accords with preset target file parameters; receiving a target access object, the access request times of which meet a preset threshold, sent by a service node; receiving a data resource packet sent by a service node, wherein the data resource packet is sent by a target transmission channel in a target time period and is derived from a target access address; the data resource package comprises a target access object; the target transmission channel is a transmission channel between the service node and the edge node that satisfies the bandwidth resource.
In one embodiment, the computer program when executed by the processor further performs the steps of:
Acquiring the access times of the target access object according to the times of historical access requests sent by the terminal and aiming at the target access object; comparing the access times with a preset threshold, and if the access times meet the preset threshold, sending the label information of the target access object meeting the preset threshold to the service node.
In one embodiment, the computer program when executed by the processor further performs the steps of:
receiving file data sent by a terminal in a corresponding subarea, and caching the file data in a storage system; judging whether the current transmission channel meets the transmission condition or not; under the condition that the transmission condition is met, compressing, packaging and sending the file data to a service node; and if the transmission condition is not satisfied, returning to the step of judging whether the current transmission channel satisfies the transmission condition.
In one embodiment, the computer program when executed by the processor further performs the steps of:
the edge node receives an access request which is sent by a terminal in a corresponding subarea and aims at a target access object; inquiring a target access object from a storage system corresponding to the edge node according to the access request; if the target access object exists in the storage system, the edge node returns the target access object to the terminal in the subarea; if the target access object does not exist in the storage system, the edge node forwards the access request to the service node; receiving a target access object returned by the service node, wherein the target access object is obtained based on an access request forwarded by the edge node; the edge node returns the target access object to the terminals in the sub-area.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (10)
1. A data transmission method, applied to an edge node, the method comprising:
receiving an access request aiming at a target access object and sent by a terminal in a corresponding subarea;
inquiring the target access object from a storage system corresponding to the edge node according to the access request;
and if the target access object exists in the storage system, returning the target access object to the terminal in the subarea.
2. The method according to claim 1, wherein before the querying the target access object from the storage system corresponding to the edge node according to the access request, the method comprises:
and receiving a target access object meeting preset conditions sent by the service node, and caching the target access object into a storage system.
3. The method of claim 2, wherein the receiving the target access object meeting the preset condition sent by the service node includes at least one of the following:
receiving a target access object which is transmitted by a service node and accords with preset target file parameters;
receiving a target access object, the access request times of which meet a preset threshold, sent by a service node;
receiving a data resource packet sent by a service node, wherein the data resource packet is sent by a target transmission channel in a target time period and is derived from a target access address; the data resource package comprises a target access object; the target transmission channel is a transmission channel between the service node and the edge node that satisfies bandwidth resources.
4. A method according to claim 3, wherein before the number of access requests sent by the receiving service node meets the target access object of the preset threshold, the method comprises:
Acquiring the access times of a target access object according to the times of historical access requests sent by a terminal and aiming at the target access object;
comparing the access times with a preset threshold, and if the access times meet the preset threshold, sending the label information of the target access object meeting the preset threshold to the service node.
5. The method according to claim 1, wherein the method further comprises:
receiving file data sent by a terminal in a corresponding subarea, and caching the file data in the storage system;
judging whether the current transmission channel meets the transmission condition or not;
under the condition that the transmission condition is met, compressing, packaging and sending the file data to a service node;
and under the condition that the transmission condition is not met, returning to the step of judging whether the current transmission channel meets the transmission condition.
6. A data transmission method, comprising:
the edge node receives an access request which is sent by a terminal in a corresponding subarea and aims at a target access object; inquiring the target access object from a storage system corresponding to the edge node according to the access request;
if the target access object exists in the storage system, the edge node returns the target access object to the terminal in the subarea;
If the target access object does not exist in the storage system, the edge node forwards the access request to a service node; receiving a target access object returned by the service node, wherein the target access object is obtained based on an access request forwarded by the edge node; and the edge node returns the target access object to the terminal in the subarea.
7. A data transmission apparatus, the apparatus being applied to an edge node, comprising:
the receiving module is used for receiving an access request which is sent by the terminal in the corresponding subarea and aims at the target access object;
the query module is used for querying the target access object from the storage system corresponding to the edge node according to the access request;
and the return module is used for returning the target access object to the terminal in the subarea if the target access object exists in the storage system.
8. A data transmission system, comprising: the device comprises edge nodes, service nodes and terminals, wherein the edge nodes are connected with the terminals, and the service nodes are connected with the edge nodes:
the edge node is used for receiving an access request which is sent by the terminal in the corresponding subarea and aims at the target access object; inquiring the target access object from a storage system corresponding to the edge node according to the access request; if the target access object exists in the storage system, returning the target access object to the terminal in the subarea;
And forwarding the access request to a service node; receiving a target access object returned by the service node, wherein the target access object is obtained based on an access request forwarded by the edge node; returning the target access object to the terminal in the subarea;
the service node is used for receiving the access request forwarded by the edge node and sending the target access object to the edge node;
a terminal for sending an access request for a target access object to the edge node in the sub-area; and the target access object returned by the edge node in the corresponding subarea is also received.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
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