WO2024046303A1 - Procédé, appareil et système de traitement de demande d'accès - Google Patents

Procédé, appareil et système de traitement de demande d'accès Download PDF

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Publication number
WO2024046303A1
WO2024046303A1 PCT/CN2023/115453 CN2023115453W WO2024046303A1 WO 2024046303 A1 WO2024046303 A1 WO 2024046303A1 CN 2023115453 W CN2023115453 W CN 2023115453W WO 2024046303 A1 WO2024046303 A1 WO 2024046303A1
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WO
WIPO (PCT)
Prior art keywords
forwarding
token
access request
tokens
gateway
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Application number
PCT/CN2023/115453
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English (en)
Chinese (zh)
Inventor
陈永谦
龙卉
龚辉
张强
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2024046303A1 publication Critical patent/WO2024046303A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • 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

Definitions

  • This application belongs to the technical field of information technology, and specifically relates to an access request processing method, device and system.
  • API gateway cluster is a multi-machine cluster environment composed of several API gateway servers. It forwards external network access requests to the API interface services provided by the system. During the forwarding process, the API gateway controls the access request. Due to the low complexity of the API gateway business and to ensure that network request traffic is not lost in the API gateway link, the performance of the API gateway is usually much higher than the backend service system (hereinafter referred to as the backend system). In order to protect the backend forwarded by the API gateway The system will not be impacted by large traffic, so it is important to limit access requests to the API gateway.
  • backend system backend service system
  • API gateway current limiting methods are generally divided into two types:
  • Rate limiting that is, controlling the number of access requests within a certain period of time, for example, 100 times per second, 200 times every 20 seconds.
  • this method uses time as the control dimension and cannot sense the running status of the background system in a timely manner; and, for scenarios where the API time-consuming is variable, this method cannot accurately evaluate the rate limiting configuration of the API gateway.
  • Concurrency limiting that is, limiting the number of access requests to the backend system at the same time. For example, limiting the number of access requests to 10 means that the number of requests to access the backend system at the same time is 10. However, this method only provides overall control of the backend system and cannot accurately control the current limit of a single API gateway.
  • the usual approach is to wait for the scheduled time After a certain period of time, the access request is directly forwarded to the backend system or the API gateway blocks the polling current limit.
  • the API gateway current limiting method in related technologies does not take into account the performance of the gateway and the backend system, and can easily lead to the downtime of the backend system.
  • the purpose of the embodiments of this application is to provide an access request processing method, device and system that can solve the problem in related technologies that the API gateway current limiting method does not take into account the performance of the gateway and the backend system, and easily leads to the downtime of the backend system.
  • embodiments of the present application provide a method for processing access requests.
  • the method includes: applying for a forwarding token according to the received access request; in response to the number of forwarding tokens in the token pool being non-zero, the method carrying the The access request for forwarding token information is forwarded to the backend system, where the token pool has a preset number of forwarding tokens, and the preset number is determined based on the performance of the backend system and the current gateway performance;
  • the access request for token information and the received response information carrying the forwarding token information are updated to update the number of forwarding tokens in the token pool.
  • inventions of the present application provide an access request processing device.
  • the device includes: a token application unit, configured to apply for a forwarding token according to the received access request; and a forwarding unit, configured to respond to the token pool.
  • the number of forwarding tokens in is non-zero, and the access request carrying the forwarding token information is forwarded to the backend system, where the token pool has a preset number of forwarding tokens, and the preset number is based on the backend system performance and Current gateway performance is determined;
  • a token update unit is configured to update the forwarding token of the token pool according to the access request carrying the forwarding token information and the received response information carrying the forwarding token information. quantity.
  • embodiments of the present application provide an access request processing system, which includes: the above-mentioned access request processing device, a backend system, and a gateway cluster including at least one gateway, wherein the access request processing device is located at Describe the gateway cluster side.
  • inventions of the present application provide an electronic device.
  • the electronic device includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor.
  • the program or instructions are When executed by the processor, the steps of the method described in the first aspect are implemented.
  • embodiments of the present application provide a readable storage medium.
  • Programs or instructions are stored on the readable storage medium.
  • the programs or instructions are executed by a processor, the method described in the first aspect is implemented. Method steps.
  • Figure 1 is an example structural diagram of an API gateway cluster in related technologies
  • Figure 2 is a schematic flow chart of an access request processing method provided by an embodiment of the present application.
  • Figure 3 is a schematic flowchart of the current limiting flow of the access request processing method provided by the embodiment of the present application.
  • Figure 4 is a schematic diagram of the request response flow of the access request processing method provided by the embodiment of the present application.
  • Figure 5 is a schematic diagram of another current limiting flowchart of the access request processing method provided by the embodiment of the present application.
  • FIG. 6 is another schematic flowchart of an access request processing method provided by an embodiment of the present application.
  • FIG. 7 is a structural block diagram of the access request processing system provided by the embodiment of the present application.
  • FIG. 8 is a structural block diagram of the access request processing device 1 provided by the embodiment of the present application.
  • Figure 9 is a structural example diagram of an API gateway current limiting system in related technologies.
  • Figure 10 is a structural example diagram of the access request processing system provided by the embodiment of the present application.
  • Figure 11 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • Figure 1 is an example structural diagram of an API gateway cluster in related technologies.
  • the API gateway includes: a configuration module, a current limiting module and a forwarding module.
  • the configuration module is used to set the current limiting configuration information and The flow configuration information is written to the current limiting module.
  • the forwarding module processes the access request according to the current limiting configuration information in the current limiting module and forwards it to the backend system or temporarily limits the flow.
  • the embodiment of the present application provides an access request processing solution.
  • This solution sets up a token pool based on the performance of the backend system and gateway, and limits forwarding access requests based on the tokens in the token pool, thereby protecting the backend system from being impacted by large traffic and avoiding downtime of the backend system.
  • FIG 2 is a schematic flowchart of an access request processing method provided by an embodiment of the present application. As shown in Figure 2, the method may include the following steps S210-S230.
  • the preset number of forwarding tokens refers to the access requests that can be forwarded through the gateway at the same time.
  • S220 In response to the number of forwarding tokens in the token pool being non-zero, forward the access request carrying the forwarding token information to the backend system.
  • the access request received at this time can be forwarded, and then the access request carrying the forwarding token information will be forwarded to the backend system, and then the access request in the token pool will be forwarded.
  • the number of forwarding tokens is reduced by one. Until the number of forwarding tokens in the token pool reaches zero, it means that the access request received at this time needs to wait and cannot be forwarded immediately. In this way, the current limiting function of the gateway is achieved.
  • a token pool with a different preset number of forwarding tokens can be set for each gateway according to the background system performance and the performance of each gateway. That is to say, token pools can be set up for different gateways in the gateway cluster.
  • the number of forwarding tokens in each token pool can be different. Specifically, the number of forwarding tokens in each token pool can be based on the background system performance and respective Determine gateway performance.
  • the access request may be sent to the waiting queue to wait.
  • the notification process can be triggered. This notification process is used to notify access requests in the waiting queue to apply for forwarding tokens when the number of forwarding tokens in the token pool is non-zero.
  • S230 Update the number of forwarding tokens in the token pool according to the above-mentioned access request carrying forwarding token information and the received response information carrying forwarding token information.
  • the number of forwarding tokens in the token pool is reduced by one; then, according to the received response information carrying the above-mentioned forwarding token information, the number of forwarding tokens in the token pool is reduced by one. The number of forwarding tokens in is increased by one.
  • the number of forwarded tokens in the token pool will be reduced by one.
  • the response request for the access request is returned, it means that the access request has been completed. At this time, the number of forwarded tokens in the token pool will be reduced by one. The number of forwarding tokens is increased by one. In this way, the current limit on the access requests forwarded by the gateway is realized, and the downtime of the backend system is avoided.
  • FIG. 3 is a schematic diagram of the current limiting process of the access request processing method according to the embodiment of the present application.
  • a token pool is added.
  • the configured concurrency limit will be initialized.
  • Number of flows used to set the number of forwarding tokens (can be referred to as tokens for short). For example, if the number of concurrent current limits is configured to 10, 10 tokens will be initialized in the token pool.
  • the request needs to be forwarded, it needs to apply for a token from the token pool.
  • the request can carry a token (that is, carry the token information) and forward it to the backend system. Access Backend, the token pool will be reduced by 1 token at this time.
  • FIG 4 is a schematic diagram of the request response flow of the access request processing method according to the embodiment of the present application. As shown in Figure 4, when the response to the access request is returned, the tokens carried will be returned. At this time, the number of tokens in the token pool increases. 1 to provide for subsequent request applications.
  • FIG. 5 is another schematic diagram of the current limiting process of the access request processing method according to the embodiment of the present application.
  • the request to apply for a token fails at this time.
  • This request is subject to current limiting processing, and the request is sent to the waiting queue to wait, and the notification process is triggered at the same time.
  • the notification process will notify requests in the waiting queue to continue applying for tokens to facilitate access to the backend system.
  • the above-mentioned token pool has the following functions:
  • the number of tokens remaining in the token pool represents the maximum access capability of the current gateway.
  • the number of tokens in the token pool determines the process of the access request. When the access request obtains the token If the token is obtained, it can enter the forwarding process of the gateway, and if the token is not obtained, it can enter the waiting queue process of the gateway.
  • the notification event When the number of tokens in the token pool is zero, the notification event will be activated. When the token exists again in the token pool, the token pool will trigger the request in the notification waiting queue to apply for the token again for subsequent access. process. Activating or triggering the notification process. Compared with the access waiting mechanism in related technologies, the active notification in the embodiment of the present application can improve resource utilization.
  • gateway as an API gateway as an example, the following describes the access request processing method in the embodiment of the present application in detail in conjunction with the process shown in Figure 6 .
  • the access request processing method specifically includes the following steps S601-S606:
  • S601 Receive the request, and the API gateway forwards the request.
  • S602 Request to enter the current limiting process and apply for a token from the token pool.
  • S603 Determine whether there is a token in the token pool. If so, proceed to S604; otherwise, proceed to S605.
  • S604 Forward the request carrying the applied token to the backend system.
  • the API gateway is in current limit, and sends the request to the waiting queue, waiting for the token pool to be returned after the request is completed, and then applies for a token.
  • the embodiment of this application is based on the token pool function, which reduces the resources occupied by the API gateway during concurrent current limiting in related technologies.
  • the recycling token method increases the control accuracy of current limiting, reduces the time required in related technologies to release a concurrent process after receiving a response, and improves the utilization of the API gateway.
  • requests waiting in the queue can be actively notified to enter the forwarding process again, which saves access time, increases the utilization of the background system, and improves the ability to forward all unrestricted forwarding or enter the forwarding limit again after passive activation. process, increasing the stability of the entire system.
  • inventions of the present application also provide an access request processing system, as shown in Figure 7.
  • the system includes: an access request processing device 1, a backend system 2 and a gateway cluster 3, where the gateway cluster 3 includes At least one gateway, the access request processing device 1 is located at the gateway cluster 3 end.
  • FIG 8 is a structural block diagram of an access request processing device 1 according to an embodiment of the present application.
  • the access request processing device 1 includes: a token application unit 11, a forwarding unit 12 and a token update unit 13, where:
  • the token application unit 11 is used to apply for a forwarding token according to the received access request.
  • the forwarding unit 12 is configured to forward the access request carrying the forwarding token information to the backend system in response to the non-zero number of forwarding tokens in the token pool, where the token pool has a preset number of forwarding tokens. , the preset number is determined based on the background system performance and the current gateway performance.
  • the token updating unit 13 is configured to update the number of forwarding tokens in the token pool according to the access request carrying the forwarding token information and the received response information carrying the forwarding token information.
  • the token update unit 13 reduces the number of forwarding tokens in the token pool by one according to the access request carrying the forwarding token information, and reduces the number of forwarding tokens in the token pool by one according to the received access request carrying the forwarding token information. response information, increase the number of forwarding tokens in the token pool by one.
  • the forwarding unit 12 can determine whether to forward the access request according to the number of forwarding tokens, because the number of forwarding tokens is based on the background system performance and the current gateway performance.
  • the current gateway performance settings can protect the backend system from being impacted by heavy traffic and avoid downtime of the backend system.
  • the above-mentioned access request processing device 1 further includes: a request waiting unit, configured to send the access request to the waiting queue in response to the number of forwarding tokens in the token pool being zero.
  • the above-mentioned access request processing device 1 further includes: a notification process triggering unit, configured to trigger a notification process.
  • the notification process is used to notify all forwarding tokens when the number of forwarding tokens in the token pool is non-zero.
  • the access request in the waiting queue applies for the forwarding token.
  • the above-mentioned access request processing device 1 also includes: a token pool setting unit, configured to respond to the gateway cluster including multiple gateways, and set different presets for each gateway according to the performance of the background system and the performance of each gateway. Let the number of forwarding tokens in the token pool.
  • the access request processing device in the embodiment of the present application may be a device, or may be a component, integrated circuit, or chip in the system, which is not specifically limited in the embodiment of the present application.
  • the access request processing device provided by the embodiment of the present application can implement each process in the method embodiments of Figures 2-6 and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • FIG 9 is a structural example diagram of an API gateway current limiting system in related technologies.
  • access requests are forwarded through a current limiting module and a forwarding model.
  • the back-end API provides back-end services for the internal GUI (Graphical User Interface, graphical user interface) channel (used by internal management) and WEB channel (used by external users).
  • GUI Graphic User Interface
  • WEB WEB channel
  • the traffic of the WEB interface is in a certain Sometimes the traffic is much larger than that of the GUI, often causing the GUI access API to be unable to obtain the background system service response, resulting in inability to enter.
  • the API gateway rate limiting module i.e., the current limiting module in the figure
  • the effect was not good because the specific configuration of the rate limiting could not be estimated, and the setting was too large to reach the GUI channel.
  • the purpose of being affected by WEB channel access is also unable to achieve the purpose of protecting back-end system services, which may cause greater access pressure on back-end system services and the possibility of downtime; if the setting is too small, the GUI channel access will not be affected by WEB Channel access affects the purpose, but the background system services are often idle, resulting in a waste of resources.
  • FIG 10 is a structural example diagram of an access request processing system according to an embodiment of the present application.
  • forwarding and current limiting of access requests are implemented through a token pool.
  • the background system performance is able to handle 64 access requests at the same time.
  • 60 After configuring the API gateway, 60 will be initialized in the token pool.
  • a token means that the WEB channel access through the API gateway can handle 60 requests at the same time, leaving 4 requests for the GUI channel. This ensures that the entire system can operate normally for access provided by different channels, and also ensures that the access requests are correct.
  • the background system will not generate excessive pressure and avoid system downtime.
  • the background system processes more than 60 requests at the same time, the number of tokens in the token pool is 0. At this time, new requests will enter the waiting queue. When a request is processed and returned, the token will be returned to the token pool when the response is returned through the API gateway. At this time, if there is a token in the token pool, a notification will be triggered for the request in the waiting queue to apply for a token. , thereby forwarding it to the backend system.
  • Each API gateway can correspond to a token pool and waiting queue. Specifically, the number of tokens in each token pool can be based on the actual backend system. and gateway performance, this application does not limit this.
  • the resource pressure of the API gateway waiting queue on the API gateway can be improved.
  • the notification mechanism in this example the access efficiency and resource utilization of the background system can be improved.
  • the current limit accuracy is higher compared to the current limit method shown in Figure 9.
  • the waiting pressure on the backend system is reduced, and the possibility of downtime of the backend system is reduced.
  • the gateway By adding the design of the token pool, the gateway is prevented from determining the number of concurrent connections through the working process, saving the resources occupied by the API gateway, while improving the current-limited access processing, and changing the openresty gateway (a kind of related technology).
  • API gateway will limit all traffic after a certain sleep time. All accesses are forwarded to the target background service, leading to the risk of increased operating pressure or even downtime of the background service.
  • the token is returned to the token pool through the forwarding module, and the token pool notifies the access waiting queue for access, which improves the situation in related technologies that the concurrent number must be released after receiving the API response, making The concurrent number is released in advance, which increases the access forwarding efficiency of the API gateway.
  • openresty gateway can launch 10 working processes at the same time.
  • API access will sleep for 5 seconds, and after 5 seconds, all access requests will be forwarded to In the background system, this may cause the background system service processing capacity to be insufficient, the background request queue to be long, and the background service to be unstable.
  • the design of the token pool is added, which prevents the gateway from determining the number of concurrent connections through the working process, saves the resources occupied by the API gateway, and also improves the processing of current-limited access.
  • the embodiment of this application makes the waiting requests through the issuance and recycling of tokens and the waiting queue. It can be released in time, which improves the gateway's access request forwarding efficiency.
  • this embodiment of the present application also provides an electronic device 1100, including a processor 1110 and a memory 1120.
  • the memory 1120 stores programs or instructions that can be run on the processor 1110.
  • the electronic device 1100 is a terminal
  • the program or instruction is executed by the processor 1110, each process of the above access request processing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, they will not be repeated here.
  • Embodiments of the present application also provide a readable storage medium.
  • Programs or instructions are stored on the readable storage medium.
  • the program or instructions are executed by a processor, each process of the above access request processing method embodiment is implemented, and can achieve The same technical effects are not repeated here to avoid repetition.
  • the processor is the processor in the electronic device described in the above embodiment.
  • the readable storage media includes computer-readable storage media, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above embodiment of the access request processing method. Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.
  • embodiments of the present application also provide a computer program product.
  • the computer program The product includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor.
  • the program or instruction is executed by the processor, each process of the above access request processing method embodiment is implemented. , and can achieve the same technical effect, so to avoid repetition, they will not be described again here.
  • the access request processing solution provided by the embodiment of this application comprehensively considers the performance of the backend system and the gateway to set the current limiting configuration.
  • the current limiting configuration can be set for different gateways respectively, which improves the utilization of the backend system and also improves the efficiency of the backend system.
  • the gateway's forwarding rate of access requests In the scenario of cloud computing and computing power network, this solution can increase the friendliness of access. When the access exceeds the limit, it will not be directly rejected, or it will be directly forwarded to the back-end service after waiting for a certain period of time, but will enter the waiting queue.
  • the gateway determines that access can continue, it obtains the request from the waiting queue and continues the access process, and the API gateway can also feed back data as information for system optimization, which increases the robustness and self-optimization of the system and avoids system downtime.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , optical disk), including several instructions to cause a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of this application.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente demande divulgue un procédé, un appareil et un système de traitement de demande d'accès. Le procédé consiste à : en fonction d'une demande d'accès reçue, appliquer un jeton de transfert ; en réponse au nombre de jetons de transfert dans un groupe de jetons qui est non nul, transférer à un système d'arrière-plan la demande d'accès portant des informations de jeton de transfert, le groupe de jetons ayant un nombre prédéfini de jetons de transfert et le nombre prédéfini étant déterminé sur la base des performances du système d'arrière-plan et des performances d'une passerelle actuelle ; et mettre à jour le nombre de jetons de transfert du groupe de jetons conformément à la demande d'accès portant les informations de jeton de transfert et les informations de réponse reçues portant les informations de jeton de transfert.
PCT/CN2023/115453 2022-09-01 2023-08-29 Procédé, appareil et système de traitement de demande d'accès WO2024046303A1 (fr)

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CN202211069611.2A CN117675921A (zh) 2022-09-01 2022-09-01 访问请求处理方法、装置及系统

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Citations (3)

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US20040215578A1 (en) * 2003-04-09 2004-10-28 Nokia, Inc. Controlling usage of system resources by a network manager
CN110611623A (zh) * 2019-08-30 2019-12-24 江苏苏宁物流有限公司 限流方法和装置
CN113067875A (zh) * 2021-03-24 2021-07-02 厦门立林科技有限公司 基于微服务网关动态流控的访问方法和装置以及设备

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US20040215578A1 (en) * 2003-04-09 2004-10-28 Nokia, Inc. Controlling usage of system resources by a network manager
CN110611623A (zh) * 2019-08-30 2019-12-24 江苏苏宁物流有限公司 限流方法和装置
CN113067875A (zh) * 2021-03-24 2021-07-02 厦门立林科技有限公司 基于微服务网关动态流控的访问方法和装置以及设备

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