CN112769885A - Proxy broadcasting method and device based on data point subscription - Google Patents
Proxy broadcasting method and device based on data point subscription Download PDFInfo
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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
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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
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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
- H04L67/1004—Server selection for load balancing
- H04L67/1008—Server selection for load balancing based on parameters of servers, e.g. available memory or workload
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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
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
- H04L67/63—Routing a service request depending on the request content or context
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Abstract
The application relates to the field of positioning and discloses a proxy broadcasting method and device based on data point subscription. The method comprises the following steps: receiving a subscription request of a client; acquiring an agent cluster of a cluster to which a client node belongs; initiating the subscription request to a proxy node of the proxy cluster; and receiving the subscription request through the proxy node, accessing a data point corresponding to the subscription request, acquiring subscription data, and broadcasting the subscription data to a client initiating the subscription request. By maintaining the agent relationship among the clusters, when a client initiates a subscription, an agent node can be dynamically selected to initiate a subscription request without issuing a data point by an agent, subscription data is obtained, the requirement of real-time data point broadcasting is met, the throughput of position data broadcasting can be greatly improved, and the time delay of a data link is reduced.
Description
Technical Field
The application relates to the field of networks, in particular to a proxy broadcasting technology based on data point subscription.
Background
In an internet position data broadcasting system, with continuous upgrading of service requirements, services are increasingly rich and complicated, the requirement on the real-time performance of a broadcasting link is higher and higher, the data volume broadcasted at the same moment is more and more, and when massive users access data at the same moment, the time delay of position data broadcasting to a terminal is larger and larger, so that the user experience is influenced.
The current broadcast link mainly has the following disadvantages when selecting the connection point:
1. in order to solve the proxy function of the data points, the function of a specific proxy node for proxy of a specific data point is adopted, and the deadlines are compared. At the peak time when a large number of users access simultaneously, the horizontal extension of the agent system cannot be effectively realized.
2. Data point proxy of a cross broadcast link cannot be realized, the functional range of the data point proxy is limited, and the multiplexing capability of data cannot be fully exerted.
Therefore, there is a need for a flexible and efficient location data proxy broadcasting technique that can quickly cope with peak access changes and ensure that location data can be quickly broadcast to users.
Disclosure of Invention
The method and the device for proxy broadcasting based on data point subscription can dynamically select proxy nodes to initiate a subscription request and obtain subscription data by maintaining the proxy relationship among clusters without proxy publishing of data points when a client initiates subscription, meet the requirement of real-time broadcasting of data points, and can greatly improve the throughput of position data broadcasting and reduce the time delay of a data link.
In order to solve the above technical problem, an embodiment of the present invention discloses a proxy broadcasting method based on data point subscription, which includes the following steps:
receiving a subscription request of a client, and acquiring an agent cluster of a cluster to which the client belongs;
initiating the subscription request to a proxy node of the proxy cluster;
and receiving the subscription request through the proxy node, accessing a data point corresponding to the subscription request, acquiring subscription data, and broadcasting the subscription data to a client initiating the subscription request.
The embodiment of the invention also discloses a proxy broadcasting device based on data point subscription, which comprises:
the receiving module is used for receiving a subscription request of a client;
the acquisition module is used for acquiring an agent cluster of a cluster to which the client node belongs;
a subscription request module, configured to initiate the subscription request to a proxy node of the proxy cluster;
and the proxy service module is used for receiving the subscription request through the proxy node, accessing a data point corresponding to the subscription request, acquiring subscription data and broadcasting the subscription data to a client initiating the subscription request.
The embodiment of the invention also discloses a proxy broadcasting device based on data point subscription, which comprises:
a memory for storing computer executable instructions; and the number of the first and second groups,
a processor for implementing the steps of the above method when executing the computer executable instructions.
The embodiment of the invention also discloses a computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium and are executed by a processor to realize the steps of the method.
Compared with the prior art, the implementation mode of the invention has the main differences and the effects that:
by maintaining the agent relationship among the clusters, when a client initiates a subscription, an agent node can be dynamically selected to initiate a subscription request without issuing a data point by an agent, subscription data is obtained, the requirement of real-time data point broadcasting is met, the throughput of position data broadcasting can be greatly improved, and the time delay of a data link is reduced.
Furthermore, simple and efficient routing configuration is realized by maintaining the proxy relationship of the node cluster, and the routing configuration is informed to all nodes, so that the instant update of the local cluster proxy relationship of each node is quickly realized, when massive users access, proxy nodes can be quickly added into the broadcasting link, the newly added access is responded, and the horizontal extension of the proxy system is effectively realized.
Furthermore, by judging the proxy node of the current node, initiating a subscription request to the proxy node, and quickly connecting to the upstream node, peak access change can be quickly dealt with, and data can be ensured to be quickly broadcast to users.
Furthermore, simple and efficient route configuration is realized by maintaining the proxy relationship among the clusters, and meanwhile, data point proxy of a cross broadcast link is supported, a plurality of systems can share one data point proxy, only one set of data system needs to be deployed, and a plurality of systems at the downstream can be used, so that the multiplexing capability of data can be fully exerted.
The present specification describes a number of technical features distributed throughout the various technical aspects, and if all possible combinations of technical features (i.e. technical aspects) of the present specification are listed, the description is made excessively long. In order to avoid this problem, the respective technical features disclosed in the above summary of the invention of the present application, the respective technical features disclosed in the following embodiments and examples, and the respective technical features disclosed in the drawings may be freely combined with each other to constitute various new technical solutions (which are considered to have been described in the present specification) unless such a combination of the technical features is technically infeasible. For example, in one example, the feature a + B + C is disclosed, in another example, the feature a + B + D + E is disclosed, and the features C and D are equivalent technical means for the same purpose, and technically only one feature is used, but not simultaneously employed, and the feature E can be technically combined with the feature C, then the solution of a + B + C + D should not be considered as being described because the technology is not feasible, and the solution of a + B + C + E should be considered as being described.
Drawings
Fig. 1 is a schematic flowchart of a proxy broadcasting method based on data point subscription according to a first embodiment of the present application;
fig. 2 is a schematic structural diagram of a proxy broadcasting device based on data point subscription according to a second embodiment of the present application;
fig. 3 is a schematic structural diagram of a preferred example according to a second embodiment of the present application.
Detailed Description
In the following description, numerous technical details are set forth in order to provide a better understanding of the present application. However, it will be understood by those skilled in the art that the technical solutions claimed in the present application may be implemented without these technical details and with various changes and modifications based on the following embodiments.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The first embodiment of the invention relates to a proxy broadcasting method based on data point subscription. Fig. 1 is a schematic flow chart of the proxy broadcasting method based on data point subscription.
Specifically, as shown in fig. 1, the proxy broadcasting method based on data point subscription includes the following steps:
in step 101, a subscription request of a client is received.
Then, step 103 is entered to obtain the proxy cluster of the cluster to which the client node belongs.
By judging the proxy node of the current node (namely the client node), initiating a subscription request to the proxy node and quickly connecting to the upstream node, the peak access change can be quickly dealt with, and the data can be ensured to be quickly broadcasted to the user.
Then, step 107 is entered, the subscription request is received through the proxy node, a data point corresponding to the subscription request is accessed, subscription data is obtained, and the subscription data is broadcasted to the client initiating the subscription request.
This flow ends thereafter.
Further, preferably, after the step 101, the following steps may be further included:
judging whether a subscription channel of the subscription request exists or not;
if yes, the subscription channel is used again to subscribe data; and if not, executing the step of acquiring the proxy cluster of the cluster to which the client node belongs.
When a client initiates a subscription, it is first determined whether the subscribed channel already exists, and if so, the channel is multiplexed (reused). If the subscribed channel does not exist, the agent cluster of the cluster is obtained again, and a subscription request is initiated to the node of the agent cluster according to a set routing rule.
Through the subscription channel multiplexing (reusing) mechanism, the broadcasting speed of the position data can be further accelerated.
In addition, before step 101, the following steps may be further included:
and acquiring the proxy relationship of the cluster to which the client node belongs, and maintaining the proxy relationship in a local memory.
It should be noted that the proxy relationship here refers to a corresponding relationship between the client node cluster and the proxy cluster, or between the client node and the proxy node.
Correspondingly, in step 103, the proxy cluster of the cluster to which the client node belongs is obtained from the local memory.
By maintaining the proxy relationship of the node cluster, simple and efficient routing configuration is realized, and the routing configuration is informed to all nodes, so that the instant update of the local cluster proxy relationship of each node is quickly realized, when a large number of users access, proxy nodes can be quickly added into a broadcasting link, the new access is responded, and the horizontal extension of a proxy system is effectively realized.
In addition, the agent relationship is maintained in the local memory, so that the network bandwidth burden can be reduced, the access to the data points is accelerated, and the broadcasting speed of the position data is accelerated.
Further preferably, in step 105, the subscription request is initiated to the proxy nodes of the proxy cluster according to a load balancing mechanism.
According to the load balancing mechanism, a subscription request is sent to the nodes with smaller load capacity according to the load capacity of each proxy node, so that the data processing capacity can be enhanced, and the flexibility and the availability can be improved.
By maintaining the agent relationship among the clusters, simple and efficient route configuration is realized, data point agents of cross broadcast links are supported, a plurality of systems can share one data point agent, only one set of data system needs to be deployed, and a plurality of downstream systems can be used, so that the multiplexing capability of data can be fully exerted.
In summary, by maintaining the proxy relationship among the clusters, when the client initiates the subscription, the proxy node can be dynamically selected to initiate the subscription request without proxy publishing of the data point, and the subscription data is obtained, so that the requirement of real-time data point broadcasting is met, the throughput of position data broadcasting can be greatly improved, and the time delay of the data link can be reduced.
The method embodiments of the present invention may be implemented in software, hardware, firmware, etc. Whether the present invention is implemented as software, hardware, or firmware, the instruction code may be stored in any type of computer-accessible memory (e.g., permanent or modifiable, volatile or non-volatile, solid or non-solid, fixed or removable media, etc.). Also, the Memory may be, for example, Programmable Array Logic (PAL), Random Access Memory (RAM), Programmable Read Only Memory (PROM), Read-Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), a magnetic disk, an optical disk, a Digital Versatile Disk (DVD), or the like.
The second embodiment of the invention relates to a proxy broadcasting device based on data point subscription. Fig. 2 is a schematic structural diagram of the proxy broadcasting device based on data point subscription.
Specifically, as shown in fig. 2, the proxy broadcasting apparatus based on data point subscription includes:
the receiving module is used for receiving a subscription request of the client.
And the acquisition module is used for acquiring the proxy cluster of the cluster to which the client node belongs.
And the subscription request module is used for initiating the subscription request to the proxy nodes of the proxy cluster.
By judging the proxy node of the current node (namely the client node), initiating a subscription request to the proxy node and quickly connecting to the upstream node, the peak access change can be quickly dealt with, and the data can be ensured to be quickly broadcasted to the user.
And the proxy service module is used for receiving the subscription request through the proxy node, accessing a data point corresponding to the subscription request, acquiring subscription data and broadcasting the subscription data to a client initiating the subscription request.
Further, preferably, the proxy broadcasting device based on data point subscription may further include:
the device comprises a judging module and a subscribing module;
the judging module is used for judging whether a subscription channel of the subscription request exists or not;
if so, the subscription module reuses the subscription channel to subscribe data; and if the proxy cluster does not exist, the acquisition module executes the step of acquiring the proxy cluster of the cluster to which the client node belongs.
When a client initiates a subscription, it is first determined whether the subscribed channel already exists, and if so, the channel is multiplexed (reused). If the subscribed channel does not exist, the agent cluster of the cluster is obtained again, and a subscription request is initiated to the node of the agent cluster according to a set routing rule.
Through the subscription channel multiplexing (reusing) mechanism, the broadcasting speed of the position data can be further accelerated.
In addition, the proxy broadcasting device based on data point subscription may further include:
and the agent relationship maintenance module is used for acquiring the agent relationship of the cluster to which the client node belongs and maintaining the agent relationship in a local memory.
It should be noted that the proxy relationship here refers to a corresponding relationship between the client node cluster and the proxy cluster, or between the client node and the proxy node.
Correspondingly, the obtaining module obtains the proxy cluster of the cluster to which the client node belongs from a local memory.
By maintaining the proxy relationship of the node cluster, simple and efficient routing configuration is realized, and the routing configuration is informed to all nodes, so that the instant update of the local cluster proxy relationship of each node is quickly realized, when a large number of users access, proxy nodes can be quickly added into a broadcasting link, the new access is responded, and the horizontal extension of a proxy system is effectively realized.
In addition, the agent relationship is maintained in the local memory, so that the network bandwidth burden can be reduced, the access to the data points is accelerated, and the broadcasting speed of the position data is accelerated.
Further, preferably, the subscription request module initiates the subscription request to the proxy nodes of the proxy cluster according to a load balancing mechanism.
According to the load balancing mechanism, a subscription request is sent to the nodes with smaller load capacity according to the load capacity of each proxy node, so that the data processing capacity can be enhanced, and the flexibility and the availability can be improved.
By maintaining the agent relationship among the clusters, simple and efficient route configuration is realized, data point agents of cross broadcast links are supported, a plurality of systems can share one data point agent, only one set of data system needs to be deployed, and a plurality of downstream systems can be used, so that the multiplexing capability of data can be fully exerted.
A preferred embodiment of the present invention is described in detail below. Fig. 3 is a schematic flow diagram of the preferred embodiment.
Specifically, as shown in fig. 3, an apparatus for implementing a data point subscription-based distribution agent in this embodiment mainly includes:
3.1 proxy relationship service Module
The module mainly provides an agent relationship maintenance interface and an agent relationship notification interface, can conveniently add, delete, modify and query the agent relationship among clusters, and notifies the client through the notification interface when the agent relationship among the clusters changes, so that the client can change the agent relationship in real time.
The proxy relationship among clusters can be flexibly configured through interfaces such as RESTful/Telnet and the like, and the configuration is informed to all nodes, so that the instant update of the local cluster proxy relationship of each node is rapidly realized. When massive users access, the proxy nodes can be quickly added into the broadcasting link in the mode, and new accesses are dealt with.
3.2 proxy connection point selection Module
The client node obtains the proxy relationship of the cluster corresponding to the node from the proxy relationship service module, obtains the proxy cluster of the cluster, and maintains the relationship in the local memory.
The client terminal provides a channel multiplexing mechanism, when the client terminal initiates a subscription, firstly, whether the subscribed channel already exists is judged, and if so, the channel is multiplexed (reused). If the channel needing subscription does not exist, the module obtains the proxy cluster of the cluster from the local memory and initiates a subscription request to the node of the proxy cluster according to the established routing rule.
Meanwhile, the agent connection point selection module realizes a load balancing mechanism and can initiate a subscription request to a node with a smaller load according to the load of each agent node.
3.3 proxy service Module
And after the proxy service module receives the subscription request, the proxy service module initiates access to the service node which really provides the data, and after the data of the data point returned by the service node is obtained, the proxy service module forwards the data to the client which initiates the subscription request.
3.4 data publishing Module
The real service node comprises a data publishing module, and when the data subscription request of the proxy node reaches the node, the data of the data point is returned to the proxy node.
In summary, by maintaining the proxy relationship among the clusters, when the client initiates the subscription, the proxy node can be dynamically selected to initiate the subscription request without proxy publishing of the data point, and the subscription data is obtained, so that the requirement of real-time data point broadcasting is met, the throughput of position data broadcasting can be greatly improved, and the time delay of the data link can be reduced.
This embodiment is an apparatus embodiment corresponding to the first embodiment, and may be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
It should be noted that, as will be understood by those skilled in the art, the implementation functions of the modules shown in the above embodiments of the proxy broadcasting device based on data point subscription may be understood by referring to the related description of the proxy broadcasting method based on data point subscription. The functions of the modules shown in the above embodiments of the proxy broadcasting device based on data point subscription may be implemented by a program (executable instructions) running on a processor, and may also be implemented by specific logic circuits. The above proxy broadcasting device based on data point subscription according to the embodiment of the present disclosure may also be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a stand-alone product. Based on such understanding, the technical solutions of the embodiments of the present specification may be essentially or partially implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present specification. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the present description are not limited to any specific combination of hardware and software.
Accordingly, the present specification embodiments also provide a computer-readable storage medium having stored therein computer-executable instructions that, when executed by a processor, implement the method embodiments of the present specification. Computer-readable storage media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable storage medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
In addition, the present specification embodiments also provide a data point subscription-based proxy broadcasting device, which includes a memory for storing computer-executable instructions, and a processor; the processor is configured to implement the steps of the method embodiments described above when executing the computer-executable instructions in the memory. The Processor may be a Central Processing Unit (CPU), other general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), or the like. The aforementioned memory may be a read-only memory (ROM), a Random Access Memory (RAM), a Flash memory (Flash), a hard disk, or a solid state disk. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
It is noted that, in the present patent application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element. In the present patent application, if it is mentioned that a certain action is executed according to a certain element, it means that the action is executed according to at least the element, and two cases are included: performing the action based only on the element, and performing the action based on the element and other elements. The expression of a plurality of, a plurality of and the like includes 2, 2 and more than 2, more than 2 and more than 2.
All documents mentioned in this application are to be considered as being incorporated in their entirety into the disclosure of this application so as to be subject to modification as necessary. Further, it is understood that various changes or modifications may be made to the present application by those skilled in the art after reading the above disclosure of the present application, and such equivalents are also within the scope of the present application as claimed.
Claims (12)
1. A proxy broadcasting method based on data point subscription is characterized by comprising the following steps:
receiving a subscription request of a client;
acquiring an agent cluster of a cluster to which a client node belongs;
initiating the subscription request to a proxy node of the proxy cluster;
and receiving the subscription request through the proxy node, accessing a data point corresponding to the subscription request, acquiring subscription data, and broadcasting the subscription data to a client initiating the subscription request.
2. The data point subscription-based proxy broadcasting method according to claim 1, further comprising, after the step of receiving a subscription request of a client, the steps of:
judging whether a subscription channel of the subscription request exists or not;
if yes, the subscription channel is used again to subscribe data; and if not, executing the step of acquiring the proxy cluster of the cluster to which the client node belongs.
3. The data point subscription-based proxy broadcasting method according to claim 1, further comprising, before the step of receiving a subscription request of a client, the steps of:
and acquiring the proxy relationship of the cluster to which the client node belongs, and maintaining the proxy relationship in a local memory.
4. The proxy broadcasting method based on data point subscription as claimed in claim 3, wherein in the step of obtaining the proxy cluster of the cluster to which the client node belongs, the proxy cluster of the cluster to which the client node belongs is obtained from a local memory.
5. The method for data point subscription-based proxy broadcasting according to any one of claims 1 to 4, wherein in the step of initiating the subscription request to the proxy nodes of the proxy cluster, the subscription request is initiated to the proxy nodes of the proxy cluster according to a load balancing mechanism.
6. An agent broadcasting device based on data point subscription, comprising:
the receiving module is used for receiving a subscription request of a client;
the acquisition module is used for acquiring an agent cluster of a cluster to which the client node belongs;
a subscription request module, configured to initiate the subscription request to a proxy node of the proxy cluster;
and the proxy service module is used for receiving the subscription request through the proxy node, accessing a data point corresponding to the subscription request, acquiring subscription data and broadcasting the subscription data to a client initiating the subscription request.
7. The data point subscription based proxy dissemination device according to claim 6, further comprising: the device comprises a judging module and a subscribing module;
the judging module is used for judging whether a subscription channel of the subscription request exists or not;
if so, the subscription module reuses the subscription channel to subscribe data; and if the proxy cluster does not exist, the acquisition module executes the step of acquiring the proxy cluster of the cluster to which the client node belongs.
8. The data point subscription based proxy dissemination device according to claim 6, further comprising:
and the agent relationship maintenance module is used for acquiring the agent relationship of the cluster to which the client node belongs and maintaining the agent relationship in a local memory.
9. The data point subscription-based proxy broadcasting device according to claim 8, wherein the obtaining module obtains the proxy cluster of the cluster to which the client node belongs from a local memory.
10. The data point subscription-based proxy broadcasting device according to any one of claims 6 to 9, wherein the subscription request module is configured to initiate the subscription request to the proxy nodes of the proxy cluster according to a load balancing mechanism.
11. A data point subscription based proxy dissemination device comprising:
a memory for storing computer executable instructions; and the number of the first and second groups,
a processor for implementing the steps in the method of any one of claims 1 to 5 when executing the computer-executable instructions.
12. A computer-readable storage medium having stored thereon computer-executable instructions which, when executed by a processor, implement the steps in the method of any one of claims 1 to 5.
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| CN114885020A (en) * | 2022-04-02 | 2022-08-09 | 浙江大学 | Data transmission system and method |
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Application publication date: 20210507 |