CN111580961A - Access request processing method, device, server and storage medium - Google Patents

Access request processing method, device, server and storage medium Download PDF

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Publication number
CN111580961A
CN111580961A CN202010350978.6A CN202010350978A CN111580961A CN 111580961 A CN111580961 A CN 111580961A CN 202010350978 A CN202010350978 A CN 202010350978A CN 111580961 A CN111580961 A CN 111580961A
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per
rate
global query
period
current limiting
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CN111580961B (en
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王剑
沈坤
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Beijing Dajia Internet Information Technology Co Ltd
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Beijing Dajia Internet Information Technology Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46Multiprogramming arrangements
    • G06F9/50Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5005Allocation of resources, e.g. of the central processing unit [CPU] to service a request
    • G06F9/5027Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/29Flow control; Congestion control using a combination of thresholds
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/60Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources

Abstract

The disclosure relates to an access request processing method, an access request processing device, a server and a storage medium. Wherein, the method comprises the following steps: if the current limit period meets the preset conditions, determining a first global query rate per second in the current limit period, wherein the preset conditions comprise: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the query rates per second reported by the at least one access server according to the preset period reaches a first threshold value; determining a second global query rate per second in a next current limiting period according to the first global query rate per second, wherein the next current limiting period is positioned behind the current limiting period in time sequence and is adjacent to the current limiting period; determining a target overload parameter matching the second global query rate per second; and feeding back the target overload parameter to at least one access server, wherein the target overload parameter is used for the at least one access server to carry out current limiting processing on the access request from the user terminal. According to the scheme disclosed by the invention, effective access current limitation can be realized.

Description

Access request processing method, device, server and storage medium
Technical Field
The present disclosure relates to the field of internet communications technologies, and in particular, to an access request processing method, an access request processing apparatus, a server, and a storage medium.
Background
At present, with the continuous maturation and development of internet technology, internet services are developed greatly, and various internet services such as information transfer, data query and the like are generated to meet different user requirements.
For most internet services, the interaction between a client (also called a user terminal) corresponding to a user and a server providing the service is usually performed. Generally, one server needs to provide services for a large number of user terminals, but there is a limit to the processing power of one server, and the maximum access amount that can be carried per unit time is limited. Then, when the access request received by the server reaches the limit value allowed by the server, the request is continuously accumulated at the server, for example, in some interconnection scenarios with large instantaneous burst traffic, the server is easily caused to malfunction and down due to overload, and in a serious case, the server and the internet system associated therewith are also caused to be paralyzed and unable to operate normally, thereby affecting the user experience. Therefore, there is a need for an effective current limiting scheme that protects servers from overloading, reduces the probability of a server failure due to overloading, and thus improves the stability of the server.
Disclosure of Invention
The present disclosure provides an access request processing method, apparatus, server and storage medium, so as to achieve the purpose of protecting a server for processing an access request from a user terminal from being overloaded, reducing the probability of a server failing due to overload, and thus improving the stability of an internet service provided by the server. The technical scheme of the disclosure is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided an access request processing method, including:
if the current limit period meets a preset condition, determining a first global query rate per second in the current limit period, wherein the preset condition comprises: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold; determining a second global query rate per second in a next current limiting period according to the first global query rate per second, wherein the next current limiting period is located after the current limiting period in time sequence and is adjacent to the current limiting period; determining a target overload parameter that matches the second global query-per-second rate; and feeding back the target overload parameter to the at least one access server, wherein the target overload parameter is used for the at least one access server to perform current limiting processing on an access request from a user terminal.
Optionally, the determining a second global query per second rate in a next current limiting period according to the first global query per second rate includes:
acquiring a third global query rate per second in a previous current limiting period, wherein the previous current limiting period is located before the current limiting period in time sequence and is adjacent to the current limiting period; and determining the second global query per second rate according to the first global query per second rate and the third global query per second rate.
Optionally, the determining the second global query per second rate according to the first global query per second rate and the third global query per second rate includes:
if the first global query per second rate is less than or equal to the third global query per second rate, determining the first global query per second rate as the second global query per second rate; if the first global query per second rate is greater than the third global query per second rate, determining a first difference between the first global query per second rate and the third global query per second rate, and determining a sum of the first difference and the first global query per second rate as the second global query per second rate.
Optionally, the determining a target overload parameter matching the second global query per second rate includes:
if the second global query rate per second is greater than a second threshold, determining the target overload parameter according to the second global query rate per second and the second threshold; and if the second global query rate per second is less than or equal to the second threshold, determining the target overload parameter as 0.
Optionally, if the second global query rate per second is greater than a second threshold, determining the target overload parameter according to the second global query rate per second and the second threshold includes:
determining a second difference between the second global query per second rate and the second threshold; and determining a target proportion according to the second difference value accounting for the second global query rate per second, and determining the target proportion as the target overload parameter.
Optionally, the access request processing method further includes:
and if the query rate per second reported by the at least one access server according to the preset period does not meet the preset condition, feeding back the currently stored historical overload parameter to the at least one access server, wherein the historical overload parameter is used for the at least one access server to perform current limiting processing on the access request from the user terminal.
According to a second aspect of the embodiments of the present disclosure, there is provided an access request processing apparatus including:
a first determining module configured to determine a first global query rate per second in a current limiting period if a preset condition is met, where the preset condition includes: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold; a second determination module configured to perform a second global query per second rate determination within a next current limit period based on the first global query per second rate, the next current limit period being chronologically subsequent to and adjacent to the current limit period; a third determination module configured to perform determining a target overload parameter that matches the second global query-per-second rate; a feedback module configured to perform feedback of the target overload parameter to the at least one access server, where the target overload parameter is used for the at least one access server to perform current limiting processing on an access request from a user terminal.
Optionally, the second determining module specifically includes:
an obtaining unit configured to perform obtaining a third global query rate per second in a previous current limit period, the previous current limit period being chronologically before and adjacent to the current limit period; a determining unit configured to perform determining the second global query per second rate according to the first global query per second rate and the third global query per second rate.
Optionally, the determining unit is configured to perform:
if the first global query per second rate is less than or equal to the third global query per second rate, determining the first global query per second rate as the second global query per second rate; if the first global query per second rate is greater than the third global query per second rate, determining a first difference between the first global query per second rate and the third global query per second rate, and determining a sum of the first difference and the first global query per second rate as the second global query per second rate.
Optionally, the third determining module is configured to perform:
if the second global query rate per second is greater than a second threshold, determining the target overload parameter according to the second global query rate per second and the second threshold; and if the second global query rate per second is less than or equal to the second threshold, determining the target overload parameter as 0.
Optionally, the third determining module is configured to perform:
determining a second difference between the second global query per second rate and the second threshold; and determining a target proportion according to the second difference value accounting for the second global query rate per second, and determining the target proportion as the target overload parameter.
Optionally, the third determining module is further configured to perform:
and if the preset condition is not met, feeding back the currently stored historical overload parameter to the at least one access server, wherein the historical overload parameter is used for the at least one access server to perform current limiting processing on the access request from the user terminal.
According to a third aspect of the embodiments of the present disclosure, there is provided a central control server, including:
a processor; a memory for storing the processor-executable instructions; wherein the processor is configured to execute the instructions to implement the access request processing method as disclosed in the embodiments of the aforementioned first aspect.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a storage medium, wherein instructions of the storage medium, when executed by a processor in a central control server, enable the central control server to execute the access request processing method disclosed in the embodiments of the foregoing first aspect.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer program product comprising at least one non-transitory computer-readable medium storing instructions interpretable by at least one processor for implementing the method for processing an access request disclosed in embodiments of the first aspect.
According to a sixth aspect of the embodiments of the present disclosure, there is provided an access request processing method, including:
reporting the query rate per second to a central control server according to a preset period; receiving a target overload parameter fed back by the central control server in the current limiting period; carrying out current limiting processing on an access request from a user terminal according to the target overload parameter; the target overload parameter is a historical overload parameter currently stored by the central control server; or the target overload parameter is matched with a second global query rate per second in a next current limiting period, the second global query rate per second is determined based on a first global query rate per second in the current limiting period, the first global query rate per second is determined by the central control server when a preset condition is met, and the next current limiting period is located after the current limiting period in time sequence and is adjacent to the current limiting period; the preset conditions include: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold value.
According to a seventh aspect of the embodiments of the present disclosure, there is provided an access request processing apparatus including:
the reporting module is configured to report the query rate per second to the central control server according to a preset period; the receiving module is configured to execute receiving of a target overload parameter fed back by the central control server in a current limiting period; the processing module is configured to perform current limiting processing on an access request from a user terminal according to the target overload parameter; the target overload parameter is a historical overload parameter currently stored by the central control server; or the target overload parameter is matched with a second global query rate per second in a next current limiting period, the second global query rate per second is determined based on a first global query rate per second in the current limiting period, the first global query rate per second is determined by the central control server when a preset condition is met, and the next current limiting period is located after the current limiting period in time sequence and is adjacent to the current limiting period; the preset conditions include: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold value.
According to an eighth aspect of the embodiments of the present disclosure, there is provided an access server, including:
a processor; a memory for storing the processor-executable instructions; wherein the processor is configured to execute the instructions to implement the access request processing method as disclosed in the embodiment of the foregoing sixth aspect.
According to a ninth aspect of embodiments of the present disclosure, there is provided a storage medium, wherein instructions, when executed by a processor in an access server, enable the access server to perform the access request processing method as disclosed in the embodiments of the aforementioned sixth aspect.
According to a tenth aspect of embodiments of the present disclosure, there is provided a computer program product comprising at least one non-transitory computer-readable medium storing instructions translatable by at least one processor for implementing the access request processing method disclosed in the embodiments of the sixth aspect.
The embodiment of the present disclosure adopts at least one technical scheme that can achieve the following beneficial effects:
in the case that it is determined that the preset condition is met, the global query rate per second in each current limiting period may be statistically determined, and specifically, the global query rate per second may be statistically determined when the total number of the at least one access server reporting the query rate per second in a preset period reaches a preset number or when the total number of the query rates per second reported by the at least one access server according to the preset period reaches a first threshold. Thus, after determining the first global query rate per second corresponding to the current limit period, the second global query rate per second corresponding to the next current limit period can be predicted accordingly, and according to the specific situation of the global query rate per second corresponding to the next current limit period, the corresponding target overload parameter can be matched for the current limit period, and the target overload parameter is fed back to the at least one access server, so that each access server can perform current limit processing on the access request from the user terminal according to the target overload parameter. In this way, the server for processing the access request from the user terminal can be protected from overload, the probability of the server failing due to overload is reduced, and the stability of the internet service provided by the server is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:
fig. 1 is a schematic diagram illustrating an application scenario of an access request processing method according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating an access request processing method applied to a central server according to an exemplary embodiment.
Fig. 3 is a flowchart illustrating an access request processing method applied to an access server according to an exemplary embodiment.
Fig. 4 is a block diagram illustrating an access request processing apparatus applied to a central server according to an exemplary embodiment.
Fig. 5 is a block diagram illustrating an access request processing apparatus applied to an access server according to an exemplary embodiment.
FIG. 6 is a block diagram illustrating a server in accordance with an example embodiment.
In order to make the technical solutions of the present disclosure better understood by those of ordinary skill in the art, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the following embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings. It is to be understood that the described embodiments are merely a subset of the disclosed embodiments and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Technical solutions provided by the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
Example one
In order to clearly describe the implementation process of the access request processing method provided in this embodiment, as shown in fig. 1, the access request processing method is a schematic diagram of a possible application scenario of the access request processing method shown in an exemplary embodiment, and the application scenario may include a user terminal, a background access server cluster, a central control server cluster, a background service server cluster, and a global current limiting configuration center.
Each user terminal can be used for a user to initiate an access request for the internet service. In one example, the access request is a hypertext transfer Protocol (HTTP) -based request and has a corresponding Uniform Resource Locator (URL); further, the user terminal may send the access request to the access server corresponding to the URL; the user terminal includes, but is not limited to, an electronic device such as a desktop computer, a smart phone, a mobile computer, and a tablet computer.
The background access server cluster comprises at least one access server, and when the background access server cluster comprises a plurality of access servers, the plurality of access servers can be respectively deployed in different machine rooms. The access server in the background access server cluster reports query rate Per Second (QPS) to one or more central control servers in the central control server cluster periodically (e.g. on the order of seconds, milliseconds, etc.), wherein QPS is the number of Queries that a server can respond to Per Second, and is a measure of how much traffic a particular query server processes within a specified time. In one example, an access server in a background access server cluster reports a QPS to each central server in a central server cluster periodically and simultaneously. Further, the access server in the background access server cluster may randomly discard the overloaded access request from the user terminal according to the overload parameter fed back by the central control server in the central control server cluster, and access the discarded and screened access request to the service server in the background service server cluster.
The central control server cluster comprises at least one central control server, and when the central control server cluster comprises a plurality of central control servers, the plurality of central control servers can work in parallel, one of the central control servers can be used as a main server, and the rest central control servers are used as backup servers for standby. In one example, each central control server in a plurality of central control servers in a central control server cluster feeds back an overload parameter to an access server in a background access server cluster based on a QPS reported by the access server in the background access server cluster and a specific configuration of a global current limiting configuration center.
The global current-limiting configuration center may perform specific current-limiting configuration and synchronize the current-limiting configuration to the central control server cluster and the background access server cluster, such as current-limiting rules, overload parameters, and a time for calculating a global QPS for QPS statistics reported by the access server.
The background service server cluster comprises at least one service server, and the service server is used for responding to an access request from a user terminal accessed by an access server in the background access server cluster so as to realize internet services such as lottery drawing, red packet snatching and the like through interaction. When the background service server cluster comprises a plurality of service servers, the plurality of service servers can work in parallel to process access requests for the same internet service or different multiple internet services, and one of the plurality of service servers can be used as a main server and the rest of the plurality of service servers can be used as backup servers for standby service processing.
Based on the above application scenario, please refer to fig. 2 in combination, which is a flowchart illustrating an access request processing method according to an exemplary embodiment, where the access request processing method may be executed by, but not limited to, a central control server in the central control server cluster illustrated in fig. 1. Referring to fig. 2, the access request processing method may include the steps as follows:
and S21, if the preset condition is met, determining a first global query rate per second in the current limiting period.
Wherein, the preset conditions include but are not limited to: the total number of the at least one access server reporting the query rate per second according to the preset period reaches a preset number, that is, the access servers reporting the query rate per second according to the preset period reach a certain proportion. Or, the total number of the query rates per second reported by the at least one access server according to the preset period reaches a first threshold, that is, the query rate per second reported by the at least one access server according to the preset period is sufficient for the central control server to count a global query rate per second and meet a preset condition.
In an example, if it is determined that the ratio of the total number of the at least one access server reporting the query rate per second according to the preset period to the total number of the access servers included in the access server cluster reaches a preset ratio, it may be determined that the query rate per second reported by the at least one access server according to the preset period satisfies a preset condition; for example, if the total number of all the access servers in the access server cluster is 1000, and there are currently 900 access servers reporting the query rate per second, that is, the ratio of the total number of the access servers reporting the query rate per second to the total number of all the access servers in the access server cluster is 90% and is greater than the preset ratio of 85%, it is determined that the preset condition is satisfied at this time, and the global query rate per second corresponding to the query rate per second reported by the at least one access server according to the preset period may be counted.
In another example, if the query rate per second reported by at least one service in the access server cluster according to the preset period has reached a certain set query rate per second value, that is, a first threshold, it may be determined that the preset condition is met, that is, the statistics of the global query rate per second corresponding to the query rate per second reported by the at least one access server according to the preset period may be started.
It should be noted that, the timing for determining the first global query rate per second may also be other optional cases, for example, when the time length for waiting for the access server in the access server cluster to report the query rate per second reaches a certain preset time length, the method starts to count the global query rate per second corresponding to the query rate per second reported by the at least one access server according to a preset period, and so on.
The first global query rate per second is a result of summing all query rates per second reported by at least one currently received access server according to a preset period.
Optionally, the at least one access server belongs to an access server cluster that establishes an effective communication connection with the central control server, and a preset period for each access server in the access server cluster to report the query rate per second may be of a second order or a millisecond order. The specific value of the preset period may be determined according to the configuration of the access server and the traffic of the internet service.
And S23, determining a second global query rate per second in a next current limiting period according to the first global query rate per second, wherein the next current limiting period is located after the current limiting period in time sequence and is adjacent to the current limiting period.
Alternatively, the following current limiting period adjacent to the current limiting period may be understood as: the next current limiting period is a current limiting period occurring first in time sequence after the current limiting period.
S25, determining a target overload parameter matching the second global query per second rate.
And S27, feeding back the target overload parameter to the at least one access server, wherein the target overload parameter is used for the at least one access server to perform current limiting processing on the access request from the user terminal.
In the case that it is determined that the preset condition is met, the global query rate per second in each current limiting period may be statistically determined, and specifically, the global query rate per second may be statistically determined when the total number of the at least one access server reporting the query rate per second in a preset period reaches a preset number or when the total number of the query rates per second reported by the at least one access server according to the preset period reaches a first threshold. Thus, after determining the first global query rate per second corresponding to the current limit period, the second global query rate per second corresponding to the next current limit period can be predicted accordingly, and according to the specific situation of the global query rate per second corresponding to the next current limit period, the corresponding target overload parameter can be matched for the current limit period, and the target overload parameter is fed back to the at least one access server, so that each access server can perform current limit processing on the access request from the user terminal according to the target overload parameter. In this way, the server for processing the access request from the user terminal can be protected from overload, the probability of the server failing due to overload is reduced, and the stability of the internet service provided by the server is improved.
It can be understood that, based on the second global query rate per second in the next current limit period estimated, it can be determined whether the access request from the user terminal is overloaded, and based on the specific situation of the second global query rate per second, the access server that has reported the query rate per second is adapted with the corresponding overload parameter, so as to access and limit current in time and effectively to implement overload protection.
Further, in this embodiment, the implementation process of S23 may include the following steps:
acquiring a third global query rate per second in a previous current limiting period, wherein the previous current limiting period is located before the current limiting period in time sequence and is adjacent to the current limiting period; and determining the second global query per second rate according to the first global query per second rate and the third global query per second rate.
It can be understood that by obtaining the global query rate per second counted in the previous current limiting period, accurate estimation of the global query rate per second in the next current limiting period can be further realized based on the change condition of the global query rate per second counted in the previous current limiting period and the current limiting period, so that the reliability of current limiting protection based on the target overload parameter matched with the estimated global query rate per second is ensured.
Alternatively, the current limiting period adjacent to the previous current limiting period may be understood as follows: the current limiting period is a current limiting period which appears first after the last current limiting period in time sequence.
Each current-limiting period may be understood as a current-limiting period in which the global query rate per second can be counted when it is determined that a preset condition is satisfied. It should be noted that, the current-limiting periods may be non-equally spaced or equally spaced, and one or more access servers may report a preset period of the query rate per second between the current-limiting periods.
Further, in this embodiment, in the step of determining the second global query per second according to the first global query per second rate and the third global query per second rate, the implementation process may include the following steps:
if the first global query per second rate is less than or equal to the third global query per second rate, determining the first global query per second rate as the second global query per second rate; if the first global query per second rate is greater than the third global query per second rate, determining a first difference between the first global query per second rate and the third global query per second rate, and determining a sum of the first difference and the first global query per second rate as the second global query per second rate.
It can be understood that by comparing the first global query rate per second counted in the current limiting period with the third global query rate per second counted in the previous current limiting period, it can be determined whether the global query rate per second is in a linear rising trend, and based on the specific comparison result and the global query rates per second counted in the last two current limiting periods, the second global query rate per second in the next current limiting period can be accurately estimated. Particularly, the method is suitable for internet service scenes with large instantaneous burst traffic, such as red packet rush in spring and evening.
Further, in this embodiment, the implementation process of S25 may include the following steps:
if the second global query rate per second is greater than a second threshold, determining the target overload parameter according to the second global query rate per second and the second threshold; and if the second global query rate per second is less than or equal to the second threshold value, determining the target overload parameter as 0.
It can be understood that the current limiting rule is matched by using the estimated second global query rate per second in the next current limiting period, that is, the second global query rate per second is compared with a preset second threshold, that is, a query rate per second current limiting threshold, and the target overload parameter which needs to be finally fed back to the access server is determined according to the comparison result.
If the second global query rate per second does not exceed the second threshold, it indicates that the current access server is not required to perform the current flow limiting processing on the access request from the user terminal, and at this time, the target overload parameter may be set to 0 and fed back to the access server that currently reports the query rate per second. If the second global query rate per second exceeds the second threshold, it indicates that the current access server needs to perform current limiting processing on the access request from the user terminal, and at this time, it may determine, based on the second threshold and the estimated second global query rate per second, a corresponding overload parameter as a target overload parameter to be fed back to the access server that currently reports the query rate per second.
Further optionally, the second threshold may correspond to URL interfaces one to one, that is, a threshold is set for each URL interface, so as to accurately distinguish different types of internet services.
Further, in this embodiment, if the second global query rate per second is greater than a second threshold, the step of determining the target overload parameter according to the second global query rate per second and the second threshold may include the following steps:
determining a second difference between the second global query per second rate and the second threshold; and determining a target proportion according to the second difference value accounting for the second global query rate per second, and determining the target proportion as the target overload parameter.
It can be understood that the target overload parameter fed back to the access server may exist in a form of a ratio, so that the access server performs a current limiting process on the access request from the user terminal according to the target ratio, so as to reduce the probability that the traffic server located behind the access server is overloaded. Optionally, the access server may randomly discard the access requests from the user terminals that match the target ratio and/or randomly overload the access requests from the user terminals that match the target ratio.
Alternatively, the target ratio may be present in the form of percentage, parts per thousand, or the like. In one example, the target ratio is in the form of a ten-thousandth ratio. For example, if the second threshold is 1 ten thousand, and the estimated second global query rate per second in the next current limiting period is 1 ten thousand to 1 thousand, according to the embodiment, a second difference value of 1 thousand may be obtained, and a ratio between the second difference value and the second global query rate per second may be further obtained, where the specific percentage is about 9%, and the 9% may be further converted into a ten thousand percent ratio, that is, divided by 100, and then fed back to the access server as the target overload parameter. In this way, the access server will randomly discard 9 access requests from 1 ten thousand access requests to reduce the burden of the subsequent service server, thereby implementing overload protection on the service server.
Further, in this embodiment, the access request processing method may further implement the following processes:
the target overload parameter is stored as the current latest historical overload parameter for backup.
The above description of the solution of the access request processing method according to the embodiment is based on the premise that the preset condition is satisfied. Then, for the case that the preset condition is not met temporarily, in the access request processing method of the embodiment, the access server may implement the flow restriction processing on the access request from the user terminal by:
and if the preset condition is not met, feeding back the currently stored historical overload parameter to the at least one access server, wherein the historical overload parameter is used for the at least one access server to perform current limiting processing on the access request from the user terminal.
It will be appreciated that the currently stored up-to-date historical overload parameters may be provided for use by the access server when the received access server periodically reported query per second rates are insufficient to support the statistics of the global query per second rate, i.e., less.
Further alternatively, the historical overload parameter may have a set validity period within which the historical overload parameter is available.
Based on the above application scenario, please refer to fig. 3 in combination, which is a flowchart illustrating an access request processing method according to an exemplary embodiment, where the access request processing method may be executed by, but not limited to, an access server in the background access server cluster illustrated in fig. 1. Referring to fig. 3, the access request processing method may include the steps as follows:
and S31, reporting the query rate per second to the central control server according to a preset period.
Wherein the preset period may be in the order of seconds or milliseconds. The specific value of the preset period may be determined according to the configuration of the access server and the traffic of the internet service.
And S33, receiving the target overload parameters fed back by the central control server in the current limiting period.
And S35, performing current limiting processing on the access request from the user terminal according to the target overload parameter.
The target overload parameter is a historical overload parameter currently stored by the central control server; or the target overload parameter is matched with a second global query rate per second in a next current limiting period, the second global query rate per second is determined based on a first global query rate per second in the current limiting period, the first global query rate per second is determined by the central control server when a preset condition is met, and the next current limiting period is located after the current limiting period in time sequence and is adjacent to the current limiting period; the preset conditions include: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold value.
Alternatively, the following current limiting period adjacent to the current limiting period may be understood as: the next current limiting period is a current limiting period occurring first in time sequence after the current limiting period.
In this embodiment, the access server may perform effective current limiting processing on the access request from the user terminal according to the target overload parameter fed back by the central control server, so as to protect the service server for processing the access request from the user terminal from being overloaded, reduce the probability of failure of the service server due to overload, and thereby improve the stability of the internet service provided by the service server.
Wherein the target overload parameter is a valid historical overload parameter stored in the central control server. Or, the target overload parameter may also be an overload parameter matched with a second global query rate per second in a next current limiting period estimated by the central control server based on a first global query rate per second counted in the current limiting period, where the first global query rate per second is determined by the central control server when a certain preset condition is satisfied. The preset conditions include, but are not limited to: the total number of the at least one access server reporting the query rate per second according to the preset period reaches a preset number, that is, the access servers reporting the query rate per second according to the preset period reach a certain proportion. Or, the total number of the query rates per second reported by the at least one access server according to the preset period reaches a first threshold, that is, the query rate per second reported by the at least one access server according to the preset period is sufficient for the central control server to count a global query rate per second and meet a preset condition.
It should be noted that, a process of predicting a second global query rate per second based on the first global query rate per second, a process of determining a target overload parameter matching the second global query rate per second, and the like may refer to relevant contents in the embodiment of the access request processing method executed by the central control server corresponding to fig. 2, and are not described herein again.
The target overload parameter is in the form of a target proportion, such as a percentage, a thousandth ratio or a ten-thousandth ratio.
Further, in this embodiment, the above S35 may be implemented as the following process:
randomly discarding the access request from the user terminal matched with the target proportion; and/or randomly performing overload marking on the access requests from the user terminals which are matched with the target proportion, and further, determining to perform response processing on the access requests with the overload marking by the service server.
In addition, it should be noted that the access server may receive a target overload parameter fed back from each central control server in the central control server cluster, and may finally perform the current limiting processing on the access request from the user terminal based on the first received target overload parameter. Further, validity judgment can be performed on the received overload parameter, in an example, a manager of the access server can set a proper overload parameter, that is, an empirical value, as a reference according to a traffic condition corresponding to the currently received access request, and when the overload parameter fed back by the central control server does not reach the empirical value, the overload parameter can be considered invalid and cannot be used for performing current limiting processing on the access request from the user terminal, and accordingly, the operation condition of the central control server can be checked, that is, when the overload parameter fed back by the central control server is not accurate enough, the condition can be fed back to the central control server side for reference checking of the operation condition of the central control server.
Example two
Fig. 4 is a block diagram of an access request processing apparatus 400 provided in an exemplary embodiment, which is applied to a central control server, where the access request processing apparatus 400 is configured to implement the access request processing method applied to the central control server. Referring to fig. 4, the access request processing apparatus 400 includes a first determination module 41, a second determination module 43, a third determination module 45, and a feedback module 47. Wherein:
a first determining module 41, configured to determine a first global query rate per second in a current limiting period if a preset condition is met, where the preset condition includes: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold; a second determining module 43 configured to perform determining a second global query per second rate in a next current limiting period according to the first global query per second rate, the next current limiting period being chronologically subsequent to and adjacent to the current limiting period; a third determination module 45 configured to perform the determination of the target overload parameter matching the second global query per second rate; a feedback module 47 configured to perform feedback of the target overload parameter to the at least one access server, where the target overload parameter is used for the at least one access server to perform current limiting processing on an access request from a user terminal.
As a possible implementation manner, the second determining module 43 may include an obtaining unit and a determining unit. Wherein:
an obtaining unit configured to perform obtaining a third global query rate per second in a previous current limit period, the previous current limit period being chronologically before and adjacent to the current limit period; a determining unit configured to perform determining the second global query per second rate according to the first global query per second rate and the third global query per second rate.
Further, as a possible implementation manner, the determining unit may be configured to perform:
if the first global query per second rate is less than or equal to the third global query per second rate, determining the first global query per second rate as the second global query per second rate; if the first global query per second rate is greater than the third global query per second rate, determining a first difference between the first global query per second rate and the third global query per second rate, and determining a sum of the first difference and the first global query per second rate as the second global query per second rate.
Further, as a possible implementation manner, the third determining module 45 may be configured to perform:
if the second global query rate per second is greater than a second threshold, determining the target overload parameter according to the second global query rate per second and the second threshold; and if the second global query rate per second is less than or equal to the second threshold, determining the target overload parameter as 0. .
Further, as a possible implementation manner, the third determining module 45 may be further configured to perform:
determining a second difference between the second global query per second rate and the second threshold; and determining a target proportion according to the second difference value accounting for the second global query rate per second, and determining the target proportion as the target overload parameter.
Further, as a possible implementation manner, the third determining module 45 may be further configured to perform:
and if the preset condition is not met, feeding back the currently stored historical overload parameter to the at least one access server, wherein the historical overload parameter is used for the at least one access server to perform current limiting processing on the access request from the user terminal.
Since the modules, units, or sub-units related in the access request processing apparatus 400 have the same or corresponding technical features as the access request processing method applied to the central control server in the foregoing first embodiment, for a detailed description of each module, unit, or sub-unit in this embodiment, reference may be made to the description of the access request processing method in the foregoing first embodiment, and this embodiment is not described again here. For example, the detailed description of the first determination module 41 may refer to the detailed description of S21 in the first embodiment, the detailed description of the second determination module 43 may refer to the detailed description of S23 in the first embodiment, the detailed description of the third determination module 45 may refer to the detailed description of S25 in the first embodiment, the detailed description of the feedback module 47 may refer to the detailed description of S27 in the first embodiment, and the like.
EXAMPLE III
Fig. 5 is a block diagram of an access request processing apparatus 500 according to an exemplary embodiment, which is applied to an access server, where the access request processing apparatus 500 is configured to implement the access request processing method applied to the access server. Referring to fig. 5, the access request processing apparatus 500 includes a reporting module 51, a receiving module 53 and a processing module 55. Wherein:
a reporting module 51 configured to report the query rate per second to the central control server according to a preset period; a receiving module 53 configured to perform receiving of the target overload parameter fed back by the central control server in the current limiting period; a processing module 55 configured to perform a current limiting process on an access request from a user terminal according to the target overload parameter; the target overload parameter is a historical overload parameter currently stored by the central control server; or the target overload parameter is matched with a second global query rate per second in a next current limiting period, the second global query rate per second is determined based on a first global query rate per second in the current limiting period, the first global query rate per second is determined by the central control server when a preset condition is met, and the next current limiting period is located after the current limiting period in time sequence and is adjacent to the current limiting period; the preset conditions include: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold value.
Since the modules, units, or sub-units related in the access request processing apparatus 500 have the same or corresponding technical features as the access request processing method applied to the access server in the foregoing first embodiment, for a detailed description of each module, unit, or sub-unit in this embodiment, reference may be made to the description of the access request processing method in the foregoing first embodiment, and details of this embodiment are not repeated here. For example, the detailed description of the reporting module 51 may refer to the detailed description of the S31 in the first embodiment, the detailed description of the receiving module 53 may refer to the detailed description of the S33 in the first embodiment, and the detailed description of the processing module 55 may refer to the detailed description of the S35 in the first embodiment, and so on.
Example four
Fig. 6 is a block diagram illustrating a server 600 according to an example embodiment. The server 600 may perform, but is not limited to, the access request processing method provided by the embodiment of the present disclosure. It should be noted that, since the access request processing method executed by the server 600 in this embodiment has the same or corresponding technical features as the access request processing method in the first embodiment, for detailed description of the access request processing method in this embodiment, reference may be made to the description of the access request processing method in the first embodiment, and details of this embodiment are not repeated herein.
Further, in one possible implementation, the server 600 may include, but is not limited to, the processor 61 and the memory 63 shown in fig. 6. The processor 61 and the memory 63 are electrically connected directly or indirectly to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines.
The memory 63 is used for storing programs or data, such as executable instructions of the processor 61. The Memory 63 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like.
The processor 61 is used to read/write data or programs stored in the memory and perform corresponding functions.
As a possible implementation, the server 600 may further include a power component configured to perform power management of the server 600, a wired or wireless network interface configured to connect the server 600 to a network, and an input/output (I/O) interface. Server 600 may operate based on an operating system stored in memory 63, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.
It should be understood that the configuration shown in fig. 6 is merely a schematic diagram of the configuration of the server 600, and that the server 600 may include more or less components than shown in fig. 6, or have a different configuration than shown in fig. 6. The components shown in fig. 6 may be implemented in hardware, software, or a combination thereof. In addition, in the embodiment of the present disclosure, the server 600 may be, but is not limited to, a computer, a mobile phone, an IPad, a mobile internet device, and the like. The server 600 may be the central server or the access server.
EXAMPLE five
In an exemplary embodiment, a storage medium is further provided, and when executed by the processor 61 in the server 600, the instructions in the storage medium enable the server 600 to execute to implement the access request processing method in the first embodiment. Alternatively, the storage medium may be a non-transitory storage medium, for example, the non-transitory storage medium may be a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
It should be noted that, since the access request processing method executed by the server 600 in this embodiment has the same or corresponding technical features as the access request processing method in the first embodiment, for detailed description of the access request processing method in this embodiment, reference may be made to the description of the access request processing method in the first embodiment, and details of this embodiment are not repeated herein.
EXAMPLE six
In an exemplary embodiment, a computer program product is also provided, which includes at least one non-transitory computer-readable medium storing instructions interpretable by at least one processor for executing the access request processing method of the first embodiment.
It should be noted that, since the access request processing method executed by the server 600 in this embodiment has the same or corresponding technical features as the access request processing method in the first embodiment, for detailed description of the access request processing method in this embodiment, reference may be made to the description of the access request processing method in the first embodiment, and details of this embodiment are not repeated herein.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
It should also be noted that 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, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

Claims (10)

1. An access request processing method, comprising:
if the current limit period meets a preset condition, determining a first global query rate per second in the current limit period, wherein the preset condition comprises: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold;
determining a second global query rate per second in a next current limiting period according to the first global query rate per second, wherein the next current limiting period is located after the current limiting period in time sequence and is adjacent to the current limiting period;
determining a target overload parameter that matches the second global query-per-second rate;
and feeding back the target overload parameter to the at least one access server, wherein the target overload parameter is used for the at least one access server to perform current limiting processing on an access request from a user terminal.
2. The method of claim 1, wherein determining the second global query per second rate for the next throttling period according to the first global query per second rate comprises:
acquiring a third global query rate per second in a previous current limiting period, wherein the previous current limiting period is located before the current limiting period in time sequence and is adjacent to the current limiting period;
and determining the second global query per second rate according to the first global query per second rate and the third global query per second rate.
3. The method of claim 2, wherein determining the second global query per second rate based on the first global query per second rate and the third global query per second rate comprises:
if the first global query per second rate is less than or equal to the third global query per second rate, determining the first global query per second rate as the second global query per second rate;
if the first global query per second rate is greater than the third global query per second rate, determining a first difference between the first global query per second rate and the third global query per second rate, and determining a sum of the first difference and the first global query per second rate as the second global query per second rate.
4. The method according to claim 2 or 3, wherein the determining a target overload parameter matching the second global query-per-second rate comprises:
if the second global query rate per second is greater than a second threshold, determining the target overload parameter according to the second global query rate per second and the second threshold;
and if the second global query rate per second is less than or equal to the second threshold, determining the target overload parameter as 0.
5. The method of claim 4, wherein determining the target overload parameter according to the second global query per second rate and the second threshold if the second global query per second rate is greater than the second threshold comprises:
determining a second difference between the second global query per second rate and the second threshold;
and determining a target proportion according to the second difference value accounting for the second global query rate per second, and determining the target proportion as the target overload parameter.
6. An access request processing method, comprising:
reporting the query rate per second to a central control server according to a preset period;
receiving a target overload parameter fed back by the central control server in the current limiting period;
carrying out current limiting processing on an access request from a user terminal according to the target overload parameter;
the target overload parameter is a historical overload parameter currently stored by the central control server; or the target overload parameter is matched with a second global query rate per second in a next current limiting period, the second global query rate per second is determined based on a first global query rate per second in the current limiting period, the first global query rate per second is determined by the central control server when a preset condition is met, and the next current limiting period is located after the current limiting period in time sequence and is adjacent to the current limiting period;
the preset conditions include: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold value.
7. An access request processing apparatus, comprising:
a first determining module configured to determine a first global query rate per second in a current limiting period if a preset condition is met, where the preset condition includes: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold;
a second determination module configured to perform a second global query per second rate determination within a next current limit period based on the first global query per second rate, the next current limit period being chronologically subsequent to and adjacent to the current limit period;
a third determination module configured to perform determining a target overload parameter that matches the second global query-per-second rate;
a feedback module configured to perform feedback of the target overload parameter to the at least one access server, where the target overload parameter is used for the at least one access server to perform current limiting processing on an access request from a user terminal.
8. An access request processing apparatus, comprising:
the reporting module is configured to report the query rate per second to the central control server according to a preset period;
the receiving module is configured to execute receiving of a target overload parameter fed back by the central control server in a current limiting period;
the processing module is configured to perform current limiting processing on an access request from a user terminal according to the target overload parameter;
the target overload parameter is a historical overload parameter currently stored by the central control server; or the target overload parameter is matched with a second global query rate per second in a next current limiting period, the second global query rate per second is determined based on a first global query rate per second in the current limiting period, the first global query rate per second is determined by the central control server when a preset condition is met, and the next current limiting period is located after the current limiting period in time sequence and is adjacent to the current limiting period;
the preset conditions include: the total number of the at least one access server reporting the query rate per second according to a preset period reaches a preset number, or the total number of the at least one access server reporting the query rate per second according to the preset period reaches a first threshold value.
9. A server, comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein the processor is configured to execute the instructions to implement the access request processing method of any one of claims 1 to 5 or to implement the access request processing method of claim 6.
10. A storage medium, wherein instructions in the storage medium, when executed by a processor in a server, enable the server to perform the access request processing method of any one of claims 1 to 5; or enabling the server to perform the access request processing method of claim 6.
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