CN113259413B - CDN scheduling method, scheduling system and storage medium - Google Patents
CDN scheduling method, scheduling system and storage medium Download PDFInfo
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- CN113259413B CN113259413B CN202110409141.9A CN202110409141A CN113259413B CN 113259413 B CN113259413 B CN 113259413B CN 202110409141 A CN202110409141 A CN 202110409141A CN 113259413 B CN113259413 B CN 113259413B
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Abstract
The application discloses a CDN scheduling method, a scheduling system and a storage medium, wherein the CDN scheduling method comprises the following steps: receiving an original user request, and judging the attribution according to the original user request to obtain an attribution judging result; converting the original user request into a secondary user request according to the attribution judgment result, adding authentication information matched with the secondary user request, and determining a second dispatching center corresponding to the attribution according to the attribution judgment result; and receiving the secondary user request and the authentication information, and performing scheduling operation according to the secondary user request and the authentication information. The CDN scheduling method can reduce scheduling times, reduce waiting time of users and improve scheduling efficiency.
Description
Technical Field
The present disclosure relates to the field of content delivery technologies, and in particular, to a CDN scheduling method, a CDN scheduling system, and a storage medium.
Background
A DNS (Domain Name System ) server is a network device for converting a domain name into an IP address that can be recognized by a network, through which a user terminal can achieve access to a service server on the internet by means of the domain name. The current CDN acceleration service is mainly realized based on DNS scheduling, and a DNS server sends a terminal request of a terminal to a CDN scheduling center, so that the CDN scheduling center can allocate a CDN node with the nearest position for the terminal.
Specifically, when a terminal needs to access a website, a terminal request of a website domain name may be sent to a Local DNS server. After receiving the terminal request, the Local DNS server can determine that the CDN acceleration service has been opened by the website, and then the Local DNS server can forward the terminal request to a CDN scheduling center. And then, the CDN dispatching center can determine the geographic position of the DNS server according to the IP address of the Local DNS server, so that the IP address of the edge CDN node near the Local DNS server can be returned to the terminal, and the terminal can access the website through the edge CDN node.
In the related art, scheduling is performed by means of DNS resolution, and an LDNS (Local DNS) exit address is used as a query IP, so that there are two problems in performing regional scheduling on a user according to the query IP, and first, the obtained address may not be the real location address of the user. The CDN scheduling according to the wrong address obviously breaks against the original purpose of "guiding" and "approaching" CDN services.
Secondly, the CDN server provides a record set of a corresponding edge cache service node A of a domain name in each area for LocalDNS analysis inquiry and caching by erecting an authoritative DNS server. The number of the record A sets can be 13 at most, the LocalDNS is selected from 13 record A sets through polling and provided for URL access users, or all record A sets are provided for user clients of the Internet, and the record A sets are selected by the clients. The problems with such a polling mechanism are: if the same internet resource stores one copy at each service node, 13 cache acquisitions to the source station may be required, thereby reducing CDN scheduling efficiency.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the CDN scheduling method can reduce scheduling times, reduce waiting time of users and improve scheduling efficiency.
The application also provides a CDN scheduling system.
The present application also proposes a computer-readable storage medium.
The CDN scheduling method according to the embodiment of the first aspect of the application is applied to a CDN scheduling system and comprises the following steps: the scheduling method comprises the following steps of:
the control center receives an original user request and judges the attribution according to the original user request to obtain an attribution judging result;
the first dispatching center converts the original user request into a secondary user request according to the attribution judgment result, adds authentication information matched with the secondary user request, and determines a second dispatching center corresponding to the attribution according to the attribution judgment result;
and the second dispatching center receives the secondary user request and the authentication information and conducts dispatching operation according to the secondary user request and the authentication information.
The CDN scheduling method according to the embodiment of the application has at least the following beneficial effects: converting the original user request into a secondary user request, and selecting a corresponding dispatching center according to the attribution of the original user request, so as to meet the original purpose of CDN approach; the secondary user requests are directly dispatched and distributed by the second dispatching center, and the dispatching of the second dispatching center is directly received during the subsequent http access, so that the dispatching times can be reduced, the waiting time of the user is reduced, and the dispatching efficiency is improved.
According to some embodiments of the present application, the CDN scheduling system further includes an intelligent scheduling module and a probing module, and the CDN scheduling method further includes:
the detection module acquires service state information of a first service plane and a second service plane of the second dispatching center to obtain the first service state information and the second service state information respectively;
the intelligent scheduling module determines a scheduling strategy according to the first service state information, the second service state information and a preset strategy rule;
the intelligent scheduling module sends the scheduling strategy to the second scheduling center;
and the second dispatching center executes corresponding dispatching operation according to the dispatching strategy.
According to some embodiments of the application, the preset policy rules include: presetting an abnormal rule and a preset threshold; the first service state information includes: first anomaly information, a first planar service parameter value; the second service state information includes: second anomaly information, second planar service parameter values;
the intelligent scheduling module determines a scheduling policy according to the first service state information, the second service state information and a preset policy rule, and the intelligent scheduling module comprises:
If the first abnormal information and/or the second abnormal information accords with the preset abnormal rule, the intelligent scheduling module determines the scheduling policy to be a first scheduling policy;
and if the first abnormal information and the second abnormal information do not accord with the preset abnormal rule, the intelligent scheduling module determines the scheduling policy to be a second scheduling policy according to the first plane service parameter value, the second plane service parameter value and the preset threshold value.
According to some embodiments of the present application, the first scheduling policy includes: the intelligent scheduling module determines the scheduling policy as a first scheduling policy, and includes:
if the first abnormal information and the second abnormal information both accord with an abnormal rule, the intelligent scheduling module determines that the scheduling policy is the first original scheduling policy;
and if the first abnormal information accords with the abnormal rule, the second abnormal information does not accord with the abnormal rule, and the intelligent scheduling module determines the scheduling strategy as the overall scheduling strategy.
According to some embodiments of the present application, the first plane service parameter value includes a first plane service capacity value and a first plane status code, the second plane service parameter value includes a second plane service capacity value and a second plane status code, and the preset threshold includes a preset first capacity threshold, a preset second capacity threshold, a preset first status code threshold, and a preset second status code threshold; the second scheduling policy includes: the second original scheduling strategy and a preset partial scheduling strategy;
if the first anomaly information and/or the second anomaly information do not conform to the preset anomaly rule, the intelligent scheduling module determines the scheduling policy as a second scheduling policy according to the first plane service parameter value, the second plane service parameter value and the preset threshold value, including:
and if the first abnormal information and the second abnormal information do not accord with the preset abnormal rule, the first plane service capacity value exceeds the preset first capacity threshold value and/or the first plane state code exceeds the preset first state code threshold value, the second plane service capacity value does not exceed the preset second capacity threshold value and the second plane state code does not exceed the preset second state code threshold value, and the intelligent scheduling module determines the scheduling policy to be a preset partial scheduling policy.
According to some embodiments of the present application, if the first anomaly information and/or the second anomaly information do not conform to the preset anomaly rule, the intelligent scheduling module determines that the scheduling policy is a second scheduling policy according to the first plane service parameter value, the second plane service parameter value, and the preset threshold value, and further includes:
and if the first abnormal information and the second abnormal information do not accord with the preset abnormal rule, and if the second planar service capacity value exceeds the preset second capacity threshold or the second planar state code exceeds the preset second state code threshold, the intelligent scheduling module determines the scheduling policy to be a second original scheduling policy.
According to some embodiments of the present application, the CDN scheduling system further includes a log collection center and an alarm center, and the CDN scheduling method further includes:
the log acquisition center acquires scheduling logs of the first scheduling center and the second scheduling center to obtain a first scheduling log and a second scheduling log respectively;
the control center analyzes the scheduling capability value of the scheduling system according to the first scheduling log and the second scheduling log;
And if the scheduling capability value is lower than a preset scheduling threshold value, the alarm center outputs alarm information.
According to some embodiments of the present application, the CDN scheduling method further includes:
the detection module acquires service state information of a first service plane and a second service plane of the second dispatching center at regular time according to preset time so as to obtain the first service state information and the second service state information respectively;
and the intelligent scheduling module updates the scheduling strategy at regular time according to the first service state information, the second service state information and a preset strategy rule.
A CDN scheduling system according to an embodiment of the second aspect of the present application includes:
the control center is used for receiving an original user request and judging the attribution according to the original user request so as to obtain an attribution judging result;
the first scheduling center is used for converting the original user request into a secondary user request according to the attribution judging result and adding authentication information matched with the secondary user request;
the second dispatching center is used for receiving the secondary user request and the authentication information and carrying out dispatching operation according to the secondary user request and the authentication information;
The first dispatching center is also used for determining a second dispatching center corresponding to the attribution according to the attribution judging result.
The CDN scheduling system provided by the embodiment of the application has at least the following beneficial effects: converting the original user request into a secondary user request, and selecting a corresponding second dispatching center according to the attribution of the original user request, so as to meet the original purpose of CDN approach; the secondary user requests are directly dispatched and distributed by the second dispatching center, and the dispatching of the second dispatching center is directly received during the subsequent http access, so that the dispatching times can be reduced, the waiting time of the user is reduced, and the dispatching efficiency is improved without being distributed by the control center and the first dispatching center.
A computer readable storage medium according to an embodiment of the third aspect of the present application stores computer executable instructions for causing a computer to perform the CDN scheduling method according to any one of the embodiments of the first aspect.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The application is further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a flowchart of a CDN scheduling method according to some embodiments of the present application;
FIG. 2 is a flowchart of a CDN scheduling method according to some embodiments of the present disclosure;
FIG. 3 is a flowchart of a CDN scheduling method according to some embodiments of the present disclosure;
fig. 4 is a schematic structural diagram of a CDN scheduling system according to some embodiments of the present disclosure;
fig. 5 is a schematic structural diagram of a CDN scheduling system according to some embodiments of the present disclosure;
fig. 6 is a block diagram of a CDN scheduling system according to some embodiments of the present application.
Reference numerals: 110. a control center; 120. a first dispatch center; 130. a second dispatch center; 140. a display center; 150. a detection module; 160. an intelligent scheduling module; 170. and a timing module.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that references to orientation descriptions, such as directions of up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical solution.
In the description of the present application, a description with reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1, in a first aspect, some embodiments of the present application provide a CDN scheduling method, which is applied to a CDN scheduling system, including: the control center, the first scheduling center and the second scheduling center, and the scheduling method includes, but is not limited to, step S100, step S200 and step S300.
Step S100: the control center receives the original user request and judges the attribution according to the original user request to obtain an attribution judging result;
step S200: the first dispatching center converts the original user request into a secondary user request according to the attribution judging result, adds authentication information matched with the secondary user request, and determines a second dispatching center corresponding to the attribution according to the attribution judging result;
Step S300: and the second dispatching center receives the secondary user request and the authentication information and performs dispatching operation according to the secondary user request and the authentication information.
The CDN scheduling method converts the original user request into the secondary user request, and selects the corresponding scheduling center according to the attribution of the original user request, so that the original purpose of CDN approach is met; the secondary user requests are directly dispatched and distributed by the second dispatching center, and the dispatching of the second dispatching center is directly received during the subsequent http access, so that the dispatching times can be reduced, the waiting time of the user is reduced, and the dispatching efficiency is improved.
Specifically, in this embodiment, a user access request (original user request) on a client first initiates an http access to a control center, and the control center performs home location judgment on a user address according to the original user request, so as to obtain a home location judgment result. The first dispatching center only works in the unified distribution business flow, the first dispatching center converts the original user request into a secondary user request according to the attribution judging result, and adds authentication information matched with the secondary user request, and the authentication information and the secondary user request are issued to the second dispatching center together. The second dispatch center only works in unifying the dispatch business processes and the dispatch of the secondary user request (secondary business processes). In the unified distribution business process, the second dispatching center receives the secondary user request dispatched by the first dispatching center, dispatches the user to the back-end plane (server), and in the subsequent dispatching process (secondary business process), the second dispatching center directly receives the user request, dispatches the user to the back-end plane. That is, in the present application, the first dispatch center is responsible for unified distribution of the HTTP dispatch of the traffic and DNS resolution functions required by the dispatch system, and the second dispatch center is responsible for HTTP dispatch only. For example, http scheduling traffic in a certain area is distributed to a second scheduling center a by a first scheduling center, and all subsequent scheduling traffic in the certain area is in charge of the second scheduling center a. The second scheduling center is responsible for actual scheduling, such as OTT service and television value-added service in province.
Referring to fig. 2, in some embodiments of the present application, the CDN scheduling system further includes an intelligent scheduling module and a probing module, and the CDN scheduling method further includes, but is not limited to, step S400, step S500, and step S600.
Step S400: the detection module acquires service state information of a first service plane and a second service plane of a second dispatching center to obtain the first service state information and the second service state information respectively;
step S500: the intelligent scheduling module determines a scheduling strategy according to the first service state information, the second service state information and a preset strategy rule;
step S600: the intelligent scheduling module sends the scheduling strategy to a second scheduling center;
step S700: and the second dispatching center executes corresponding dispatching operation according to the dispatching strategy.
Specifically, in this embodiment, the control center configures and issues an original scheduling policy to the intelligent scheduling module, and the intelligent scheduling module issues the original scheduling policy to the second scheduling center for execution, so as to implement scheduling on the user. The detection module acquires service state information of a first service plane and a second service plane of the second dispatching center to respectively acquire the first service state information and the second service state information, and provides information for the intelligent dispatching module to generate the latest dispatching strategy. And the intelligent scheduling module issues a scheduling strategy to a second scheduling center so as to realize scheduling of the users.
Referring to fig. 3, in some embodiments of the present application, the preset policy rules include: presetting an abnormal rule and a preset threshold; the first service state information includes: first anomaly information, a first planar service parameter value; the second service state information includes: second anomaly information, second planar service parameter values;
step S500 includes, but is not limited to, step S510 and step S520.
Step S510: if the first abnormal information and/or the second abnormal information accord with the preset abnormal rule, the intelligent scheduling module determines the scheduling strategy as the first scheduling strategy;
step S520: and if the first abnormal information and the second abnormal information do not accord with the preset abnormal rule, the intelligent scheduling module determines the scheduling policy as a second scheduling policy according to the first plane service parameter value, the second plane service parameter value and the preset threshold value.
In some embodiments of the present application, the first scheduling policy includes: a first original scheduling policy and an overall scheduling policy; the first plane service parameter value comprises a first plane service capacity value and a first plane state code, the second plane service parameter value comprises a second plane service capacity value and a second plane state code, and the preset threshold comprises a preset first capacity threshold, a preset second capacity threshold, a preset first state code threshold and a preset second state code threshold; the second scheduling policy includes: the second original scheduling strategy and the preset partial scheduling strategy. Step S510 includes, but is not limited to, step S511, step S512. Step S520 includes, but is not limited to, step S521, step S522.
Step S511: if the first abnormal information and the second abnormal information both accord with the abnormal rule, the intelligent scheduling module determines that the scheduling strategy is a first original scheduling strategy;
step S512: if the first abnormal information accords with the abnormal rule, the second abnormal information does not accord with the abnormal rule, and the intelligent scheduling module determines that the scheduling strategy is an overall scheduling strategy;
step S521: if the first abnormal information and the second abnormal information do not accord with the preset abnormal rule, the first plane service capacity value exceeds the preset first capacity threshold value and/or the first plane state code exceeds the preset first state code threshold value, the second plane service capacity value does not exceed the preset second capacity threshold value and the second plane state code does not exceed the preset second state code threshold value, and the intelligent scheduling module determines that the scheduling strategy is a preset partial scheduling strategy;
step S522: if the first abnormal information and the second abnormal information do not accord with the preset abnormal rule, and if the second plane service capacity value exceeds the preset second capacity threshold value or the second plane state code exceeds the preset second state code threshold value, the intelligent scheduling module determines the scheduling strategy to be the second original scheduling strategy.
Specifically, in this embodiment, the first original scheduling policy and the second original scheduling policy are initially scheduling policies issued by the control center, and may be updated along with the policies generated by the intelligent scheduling module in real time. The first original scheduling policy and the second original scheduling policy may be identical.
The scheduling policies in this embodiment are all executed by the second scheduling center.
Such as: assuming that the first service plane is A, the second service plane is B, and a plurality of CDN servers are arranged in each plane. The control center configures the scheduling policy of the plane AB, and takes the example that the plane AB is responsible for one IP address field. For the IP1 area, all users are scheduled to the a-plane, where the AB-plane service ratio is 100:0. The first original scheduling policy or the second original scheduling policy is: AB plane service ratio 100:0. the original scheduling policy includes a first original scheduling policy and a second original scheduling policy.
The overall scheduling policy is to schedule all users in a certain plane to another plane, such as all users in the a plane to the B plane.
Scheduling a part of users to another plane according to user-defined setting by a preset part of scheduling strategies; or may be varied according to actual information detected by the detection module. Such as scheduling 5% of the users of the a-plane to the B-plane.
The control center configures an original scheduling strategy and issues the original scheduling strategy to the intelligent scheduling module, and records that the current strategy is 100:0.
And checking the acquired data to judge whether the A-plane scheduling server is available.
If the A plane scheduling server is abnormal and can not serve the outside, checking whether the B plane scheduling server is abnormal, if the B plane scheduling server is normal, generating an overall scheduling strategy of A:B=0:100, scheduling a user request to the B plane, and if the B plane is abnormal, issuing an original scheduling strategy, and generating an original scheduling strategy of A:B=100:0.
If the A plane scheduling server is available, checking whether the A plane service capacity exceeds a threshold value, if the A plane service exceeds the threshold value, judging whether the B plane capacity exceeds the threshold value, if the B plane capacity does not exceed the threshold value, judging whether the B plane status code exceeds the threshold value, and if the B plane status code does not exceed the threshold value, adjusting the scheduling proportion to generate a preset part scheduling strategy of A:B=95:5 scheduling, wherein the preset part scheduling strategy is set according to a user definition, and in the embodiment, the preset part scheduling strategy is 5%, namely 5% of user accesses are scheduled to the B plane; if the B-plane capacity exceeds the threshold or the status code exceeds the threshold, the user plane is not adjusted and a scheduling policy of a: b=100:0 is generated.
If the A plane capacity does not exceed the threshold value, checking whether the A plane state code exceeds the threshold value, if the A plane state code exceeds the threshold value, judging whether the B plane capacity exceeds the threshold value, if the B plane capacity does not exceed the threshold value, judging whether the B plane state code exceeds the threshold value, if the B plane state code does not exceed the threshold value, adjusting the scheduling proportion, and generating a preset partial scheduling strategy of A:B=95:5, namely scheduling 5% of user accesses to the B plane; if the B-plane capacity exceeds the threshold or the status code exceeds the threshold, the user plane is not adjusted and a scheduling policy of a: b=100:0 is generated, i.e. the original scheduling policy is used.
And after the scheduling strategy is adjusted, updating the intelligent scheduling module according to the calculation result, and uploading the real-time scheduling strategy to the control center.
And the following steps: the control center configures the scheduling policy of plane AB, here taking as an example that the plane AB is responsible for one IP address segment each. For IP1 area, all users are scheduled to the a-plane, AB-plane service ratio 100:0. the first original scheduling policy or the second original scheduling policy is: AB plane service ratio 100:0.
the control center configuration is issued to the intelligent scheduling module, and the current strategy is recorded as 95:5.
And checking the acquired data to judge whether the A-plane scheduling server is available.
If the A plane scheduling server is abnormal and can not serve the outside, checking whether the B plane scheduling server is abnormal, if the B plane scheduling server is normal, generating an overall scheduling strategy of A:B=0:100, scheduling a user request to the B plane, and if the B plane is abnormal, issuing an original scheduling strategy, and generating an original scheduling strategy of A:B=100:0.
If the A plane scheduling server is available, checking whether the A plane service capacity exceeds a threshold value, if the A plane service exceeds the threshold value, judging whether the B plane capacity exceeds the threshold value, if the B plane capacity does not exceed the threshold value, judging whether the B plane state code exceeds the threshold value, if the B plane state code does not exceed the threshold value, adjusting the scheduling proportion, and generating a preset part scheduling strategy of A:B=90:10, namely scheduling 10% of user accesses to the B plane; if the B-plane capacity exceeds the threshold or the status code exceeds the threshold, then the original scheduling policy is used to generate an a: b=100:0 scheduling policy.
If the A plane capacity does not exceed the threshold value, checking whether the A plane state code exceeds the threshold value, if the A plane state code exceeds the threshold value, judging whether the B plane capacity exceeds the threshold value, if the B plane capacity does not exceed the threshold value, judging whether the B plane state code exceeds the threshold value, if the B plane state code does not exceed the threshold value, adjusting the scheduling proportion, and generating a preset partial scheduling strategy of A:B=90:10, namely 5% of user accesses are scheduled to the B plane; if the B-plane capacity exceeds the threshold or the status code exceeds the threshold, then the original scheduling policy is used to generate a: b=100:0 scheduling policy.
And after the scheduling strategy is adjusted, updating the intelligent scheduling module according to the calculation result, and uploading the scheduling strategy to the configuration management platform.
In some embodiments of the present application, the CDN scheduling system further includes a log collection center and an alarm center, and the CDN scheduling method further includes, but is not limited to, step S800, step S900, and step S1000.
Step S800: the method comprises the steps that a log acquisition center acquires scheduling logs of a first scheduling center and a second scheduling center to obtain the first scheduling log and the second scheduling log respectively;
step S900: the control center analyzes the scheduling capability value of the scheduling system according to the first scheduling log and the second scheduling log;
Step S1000: and if the scheduling capability value is lower than a preset scheduling threshold value, the alarm center outputs alarm information.
Through the arrangement, the control center can carry out overall analysis on the CDN dispatching system, and a user can know the actual situation of the current dispatching system in real time. When abnormality occurs, alarm information is output to remind a user (CDN system user) of abnormal service.
In some embodiments of the present application, the CDN scheduling method further includes, but is not limited to, step S1100 and step S1200.
Step S1100: the detection module acquires service state information of a first service plane and a second service plane of the second dispatching center at regular time according to preset time so as to obtain the first service state information and the second service state information respectively;
step S1200: and the intelligent scheduling module updates the scheduling strategy at regular time according to the first service state information, the second service state information and the preset strategy rule.
Such as: the service state information of the first service plane and the second service plane of the second dispatching center is acquired once per minute so as to control the running state of the dispatching system in real time, and then the dispatching strategy is updated and adjusted according to the service state information, so that the situation that the system cannot work normally due to the fact that a certain plane has a problem is avoided.
The following describes the CDN scheduling method according to the embodiments of the present application in detail with reference to fig. 1 to 3 and fig. 5, and it should be noted that the present embodiment is only a detailed description of the CDN scheduling method and is not to be construed as limiting the present application.
The CDN dispatching system comprises a control center, a first dispatching center, a second dispatching center, a detection module, an intelligent dispatching module, a timing module, a display center, an alarm center and a log acquisition center.
Initially, users (indicated by users a to h in fig. 2) intensively initiate access requests to a control center, and the control center judges the attribution of all the access requests to obtain and output attribution judgment results. The first dispatching center only works in the unified distribution business flow, the first dispatching center converts the original user request into a secondary user request according to the attribution judging result, authentication information matched with the secondary user request is added, the authentication information and the secondary user request are issued to the second dispatching center together, if the user a, the user B and the user C are distributed to the second dispatching center A for dispatching, the user d and the user e are distributed to the second dispatching center B for dispatching, and the user f, the user g and the user h are distributed to the second dispatching center C for dispatching. The second dispatch center only works in unifying the dispatch business processes and the dispatch of secondary user requests (secondary business processes). In the unified distribution business process, the second dispatching center receives the secondary user request dispatched by the first dispatching center, dispatches the user to the back-end plane (server), and in the subsequent dispatching process (secondary business process), the second dispatching center directly receives the user request, dispatches the user to the back-end plane. The intelligent scheduling module works between the control center and the second scheduling center, the control center is configured to issue an original scheduling strategy to the intelligent scheduling module, and the intelligent scheduling module issues the original scheduling strategy to the second scheduling center for execution so as to realize scheduling of users. And the intelligent scheduling module performs policy calculation according to the service state information of the first service plane and the second service plane collected by the detection module so as to generate the latest scheduling policy, and then issues the scheduling policy to the second scheduling center. The detection period of the detection module is 1 minute, the intelligent scheduling module updates the scheduling strategy according to the detected information, and when the scheduling server is found to be abnormal, the switching can be completed within 2 minutes. The alarm center is used for judging whether the first dispatching center and the second dispatching center are abnormal, and outputting alarm information if the first dispatching center and the second dispatching center are abnormal so as to remind a user (CDN system user) of abnormal service. The log acquisition center is used for acquiring the dispatching logs of the first dispatching center and the second dispatching center and uploading the dispatching logs to the control center so that the control center can analyze the dispatching capacity of the dispatching system.
The CDN scheduling method converts the original user request into the secondary user request, and selects a corresponding second scheduling center according to the attribution of the original user request, so that the CDN scheduling method meets the original purpose of CDN approaching; the secondary user requests are directly dispatched and distributed by the second dispatching center, and the dispatching of the second dispatching center is directly received during the subsequent http access, and the dispatching times can be reduced, the waiting time of the user is reduced, and the dispatching efficiency is improved without being distributed by the control center 110 and the first dispatching center.
In a second aspect, referring to fig. 4, in some embodiments of the present application, a CDN scheduling system is provided, including a control center 110, a first scheduling center 120, and a second scheduling center 130. The control center 110 is configured to receive an original user request, and perform home location judgment according to the original user request, so as to obtain a home location judgment result; the first scheduling center 120 is configured to convert the original user request into a secondary user request according to the attribution determination result, add authentication information matched with the secondary user request, and determine a second scheduling center 130 corresponding to the attribution according to the attribution determination result; the second scheduling center 130 is configured to receive the secondary user request and the authentication information, and perform a scheduling operation according to the secondary user request and the authentication information.
Specifically, in this embodiment, a user access request (original user request) on a client first initiates an http access to the control center 110, and the control center 110 performs home judgment on a user address according to the original user request, so as to obtain a home judgment result. The first scheduling center 120 only works in the unified distribution business process, the first scheduling center 120 receives and converts the original user request into a secondary user request according to the attribution judgment result, adds authentication information matched with the secondary user request, and issues the authentication information and the secondary user request to the second scheduling center 130. The second dispatch center 130 operates only in the unified distribution business process and the dispatch of secondary user requests (secondary business processes). In the unified distribution service flow, the second scheduling center 130 receives the secondary user request scheduled by the first scheduling center 120, schedules the user to the back-end plane (server), and in the subsequent scheduling process (secondary service flow), the second scheduling center 130 directly receives the user request, and schedules the user to the back-end plane. That is, in the present application, the first dispatch center 120 is responsible for unified distribution of the DNS resolution functions required by the HTTP dispatch and dispatch system of the traffic, and the second dispatch center 130 is responsible for only HTTP dispatch. For example, http scheduled traffic in a certain area is distributed by the first scheduling center 120 to a certain second scheduling center 130, and all subsequent scheduled traffic in the certain area is responsible for the second scheduling center 130. The second dispatch center 130 is responsible for actual dispatch, such as OTT services and television value added services in the province.
By the arrangement, the scheduling times can be reduced, the waiting time of the user is reduced, the dispatching efficiency of the CDN is improved, and the service is dispatched to the second dispatching center 130, so that when the control center 110 and the first dispatching center 120 are abnormal, the second dispatching center 130 is not affected, and the http access of the user is not affected.
Referring to fig. 5, in some embodiments of the present application, the CDN scheduling system further includes an intelligent scheduling module 160 and a probing module 150. The detection module 150 is configured to obtain service status information of the first service plane and the second service plane of the second dispatch center 130, so as to obtain the first service status information and the second service status information respectively. The intelligent scheduling module 160 is configured to determine a scheduling policy according to the first service status information, the second service status information, and a preset policy rule, and send the generated scheduling policy to the second scheduling center 130. The second dispatch center 130 performs a corresponding dispatch operation according to a dispatch policy.
Specifically, in this embodiment, the intelligent scheduling module 160 works between the control center 110 and the second scheduling center 130, where the control center 110 configures to issue an original scheduling policy to the intelligent scheduling module 160, and the intelligent scheduling module 160 issues the original scheduling policy to the second scheduling center 130 for executing, so as to implement scheduling on the user. The intelligent scheduling module 160 performs policy calculation according to the service state information of the first service plane and the second service plane collected by the detection module 150, so as to generate the latest scheduling policy, and then issues the scheduling policy to the second scheduling center 130.
Such as: assuming that the first service plane is A, the second service plane is B, and a plurality of CDN servers are arranged in each plane. The control center 110 configures the scheduling policy of the plane AB, and takes as an example an IP address segment for which the plane AB is responsible. For the IP1 area, all users are scheduled to the a-plane, where the AB-plane service ratio is 100:0. The first original scheduling policy or the second original scheduling policy is: AB plane service ratio 100:0. the original scheduling policy includes a first original scheduling policy and a second original scheduling policy.
The overall scheduling policy is to schedule all users in a certain plane to another plane, such as all users in the a plane to the B plane.
Scheduling a part of users to another plane according to user-defined setting by a preset part of scheduling strategies; or may be varied according to actual information detected by the detection module 150. Such as scheduling 5% of the users of the a-plane to the B-plane.
The control center 110 configures the original scheduling policy to be issued to the intelligent scheduling module 160, and records the current policy as 100:0.
And checking the acquired data to judge whether the A-plane scheduling server is available.
If the A plane scheduling server is abnormal and can not serve the outside, checking whether the B plane scheduling server is abnormal, if the B plane scheduling server is normal, generating an overall scheduling strategy of A:B=0:100, scheduling a user request to the B plane, and if the B plane is abnormal, issuing an original scheduling strategy, and generating an original scheduling strategy of A:B=100:0.
If the A plane scheduling server is available, checking whether the A plane service capacity exceeds a threshold value, if the A plane service exceeds the threshold value, judging whether the B plane capacity exceeds the threshold value, if the B plane capacity does not exceed the threshold value, judging whether the B plane status code exceeds the threshold value, and if the B plane status code does not exceed the threshold value, adjusting the scheduling proportion to generate a preset part scheduling strategy of A:B=95:5 scheduling, wherein the preset part scheduling strategy is set according to a user definition, and in the embodiment, the preset part scheduling strategy is 5%, namely 5% of user accesses are scheduled to the B plane; if the B-plane capacity exceeds the threshold or the status code exceeds the threshold, the user plane is not adjusted and a scheduling policy of a: b=100:0 is generated.
If the A plane capacity does not exceed the threshold value, checking whether the A plane state code exceeds the threshold value, if the A plane state code exceeds the threshold value, judging whether the B plane capacity exceeds the threshold value, if the B plane capacity does not exceed the threshold value, judging whether the B plane state code exceeds the threshold value, if the B plane state code does not exceed the threshold value, adjusting the scheduling proportion, and generating a preset partial scheduling strategy of A:B=95:5, namely scheduling 5% of user accesses to the B plane; if the B-plane capacity exceeds the threshold or the status code exceeds the threshold, the user plane is not adjusted and a scheduling policy of a: b=100:0 is generated, i.e. the original scheduling policy is used.
After the scheduling policy is adjusted, the intelligent scheduling module 160 is updated according to the calculation result, and the real-time scheduling policy is uploaded to the control center 110.
Referring to fig. 5 and 6, in some embodiments of the present application, the CDN scheduling system further includes a timing module 170, where the timing module 170 is configured to output timing information. The detection module 150 is further configured to acquire service state information of the first service plane and the second service plane of the second dispatch center 130 at preset time timing, so as to obtain the first service state information and the second service state information respectively. The intelligent scheduling module 160 is further configured to update the scheduling policy at regular time according to the first service status information, the second service status information, and the preset policy rule, and send the scheduling policy to the second scheduling center 130.
Such as: the detection period of the detection module 150 is 1 minute, the intelligent scheduling module 160 updates the scheduling policy according to the detected information, and when the scheduling server is found to be abnormal, the switching can be completed within 2 minutes.
The CDN dispatching system converts the original user request into the secondary user request, and selects the corresponding second dispatching center 130 according to the attribution of the original user request, so as to meet the original purpose of CDN approach; the secondary user requests are directly dispatched and distributed by the second dispatching center 130, and the dispatching of the second dispatching center 130 is directly received during the subsequent http access, and the dispatching times can be reduced, the waiting time of the user is reduced, and the dispatching efficiency is improved without being distributed by the control center 110 and the first dispatching center 120.
In some embodiments of the present application, the CDN scheduling system further includes an alarm center (not shown in the figure) and a log collection center (not shown in the figure), where the alarm center is configured to interpret whether the first scheduling center 120 and the second scheduling center 130 are abnormal, and if so, output alarm information to alert a user (CDN system user) of the abnormal service. The log collection center is configured to obtain the scheduling logs of the first scheduling center 120 and the second scheduling center 130, and upload the scheduling logs to the control center 110, so that the control center 110 analyzes the scheduling capability of the scheduling system.
Referring to fig. 6, in some embodiments of the present application, the CDN scheduling system further includes a display center 140, where the display center 140 is configured to display a real-time scheduling state and other working states of the current CDN scheduling system according to information (including log information and service information mentioned in the present application) acquired by the detection module 150 and the log collection center.
The CDN dispatching system converts the original user request into the secondary user request, and selects the corresponding second dispatching center 130 according to the attribution of the original user request, so as to meet the original purpose of CDN approach; the secondary user requests are directly dispatched and distributed by the second dispatching center 130, and the dispatching of the second dispatching center 130 is directly received during the subsequent http access, and the dispatching times can be reduced, the waiting time of the user is reduced, and the dispatching efficiency is improved without being distributed by the control center 110 and the first dispatching center 120.
The specific operation flow, scheduling method, etc. of the CDN scheduling system are consistent with the CDN scheduling method, and are not described herein.
In a third aspect, embodiments of the present application also provide a computer-readable storage medium.
In some embodiments, a computer readable storage medium stores computer executable instructions for performing the CDN scheduling method mentioned in the embodiments of the first aspect.
In some embodiments, the storage medium stores computer-executable instructions that are executed by one or more control processors, e.g., by one of the processors in the electronic device, which may cause the one or more processors to perform the CDN scheduling method.
The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
The embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present application. Furthermore, embodiments of the present application and features of the embodiments may be combined with each other without conflict.
Claims (9)
- The CDN scheduling method is characterized by being applied to a CDN scheduling system and comprising the following steps: the scheduling method comprises the following steps of:the control center receives an original user request and judges the attribution according to the original user request to obtain an attribution judging result;the first dispatching center converts the original user request into a secondary user request according to the attribution judgment result, adds authentication information matched with the secondary user request, and determines a second dispatching center corresponding to the attribution according to the attribution judgment result;the second dispatching center receives the secondary user request and the authentication information and carries out dispatching operation according to the secondary user request and the authentication information;The detection module acquires service state information of a first service plane and a second service plane of the second dispatching center to obtain the first service state information and the second service state information respectively;the intelligent scheduling module determines a scheduling strategy according to the first service state information, the second service state information and a preset strategy rule;the intelligent scheduling module sends the scheduling strategy to the second scheduling center;and the second dispatching center executes corresponding dispatching operation according to the dispatching strategy.
- 2. The CDN scheduling method of claim 1, wherein the preset policy rules include: presetting an abnormal rule and a preset threshold; the first service state information includes: first anomaly information, a first planar service parameter value; the second service state information includes: second anomaly information, second planar service parameter values;the intelligent scheduling module determines a scheduling policy according to the first service state information, the second service state information and a preset policy rule, and the intelligent scheduling module comprises:if the first abnormal information and/or the second abnormal information accords with the preset abnormal rule, the intelligent scheduling module determines the scheduling policy to be a first scheduling policy;And if the first abnormal information and the second abnormal information do not accord with the preset abnormal rule, the intelligent scheduling module determines the scheduling policy to be a second scheduling policy according to the first plane service parameter value, the second plane service parameter value and the preset threshold value.
- 3. The CDN scheduling method of claim 2, wherein the first scheduling policy includes: the intelligent scheduling module determines the scheduling policy as a first scheduling policy, and includes:if the first abnormal information and the second abnormal information both accord with an abnormal rule, the intelligent scheduling module determines that the scheduling policy is the first original scheduling policy;and if the first abnormal information accords with the abnormal rule, the second abnormal information does not accord with the abnormal rule, and the intelligent scheduling module determines the scheduling strategy as the overall scheduling strategy.
- 4. The CDN scheduling method of claim 3 wherein the first plane service parameter value comprises a first plane service capacity value and a first plane state code, the second plane service parameter value comprises a second plane service capacity value and a second plane state code, and the preset threshold comprises a preset first capacity threshold, a preset second capacity threshold, a preset first state code threshold, and a preset second state code threshold; the second scheduling policy includes: the second original scheduling strategy and a preset partial scheduling strategy;If the first anomaly information and/or the second anomaly information do not conform to the preset anomaly rule, the intelligent scheduling module determines the scheduling policy as a second scheduling policy according to the first plane service parameter value, the second plane service parameter value and the preset threshold value, including:and if the first abnormal information and the second abnormal information do not accord with the preset abnormal rule, the first plane service capacity value exceeds the preset first capacity threshold value and/or the first plane state code exceeds the preset first state code threshold value, the second plane service capacity value does not exceed the preset second capacity threshold value and the second plane state code does not exceed the preset second state code threshold value, and the intelligent scheduling module determines the scheduling policy to be a preset partial scheduling policy.
- 5. The CDN scheduling method of claim 4, wherein if the first anomaly information and/or the second anomaly information do not meet the preset anomaly rule, the intelligent scheduling module determines the scheduling policy to be a second scheduling policy according to the first plane service parameter value, the second plane service parameter value, and the preset threshold value, further comprising:And if the first abnormal information and the second abnormal information do not accord with the preset abnormal rule, and if the second planar service capacity value exceeds the preset second capacity threshold or the second planar state code exceeds the preset second state code threshold, the intelligent scheduling module determines the scheduling policy to be a second original scheduling policy.
- 6. The CDN scheduling method of claim 1, wherein the CDN scheduling system further comprises a log collection center and an alert center, the CDN scheduling method further comprising:the log acquisition center acquires scheduling logs of the first scheduling center and the second scheduling center to obtain a first scheduling log and a second scheduling log respectively;the control center analyzes the scheduling capability value of the scheduling system according to the first scheduling log and the second scheduling log;and if the scheduling capability value is lower than a preset scheduling threshold value, the alarm center outputs alarm information.
- 7. The CDN scheduling method of claim 1, further comprising:the detection module acquires service state information of a first service plane and a second service plane of the second dispatching center at regular time according to preset time so as to obtain the first service state information and the second service state information respectively;And the intelligent scheduling module updates the scheduling strategy at regular time according to the first service state information, the second service state information and a preset strategy rule.
- A cdn scheduling system comprising:the control center is used for receiving an original user request and judging the attribution according to the original user request so as to obtain an attribution judging result;the first scheduling center is used for converting the original user request into a secondary user request according to the attribution judging result and adding authentication information matched with the secondary user request;the second dispatching center is used for receiving the secondary user request and the authentication information and carrying out dispatching operation according to the secondary user request and the authentication information;the first dispatching center is also used for determining a second dispatching center corresponding to the attribution according to the attribution judging result;the detection module is used for acquiring service state information of a first service plane and a second service plane of the second dispatching center so as to respectively acquire the first service state information and the second service state information;The intelligent scheduling module is used for determining a scheduling strategy according to the first service state information, the second service state information and a preset strategy rule;the intelligent scheduling module is also used for sending the scheduling strategy to the second scheduling center;the second dispatching center is further used for executing corresponding dispatching operation according to the dispatching strategy.
- 9. A computer readable storage medium storing computer executable instructions for causing a computer to perform the CDN scheduling method of any one of claims 1 to 7.
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