CN114520784B - Dynamic content acceleration access method and device - Google Patents

Dynamic content acceleration access method and device Download PDF

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Publication number
CN114520784B
CN114520784B CN202111608423.8A CN202111608423A CN114520784B CN 114520784 B CN114520784 B CN 114520784B CN 202111608423 A CN202111608423 A CN 202111608423A CN 114520784 B CN114520784 B CN 114520784B
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acceleration
target
node
acceleration server
source station
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CN114520784A (en
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郭迎
蒋辉
罗世斌
林金棚
余升水
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Tianyi Cloud Technology Co Ltd
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Tianyi Cloud Technology Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/12Shortest path evaluation
    • H04L45/121Shortest path evaluation by minimising delays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/08Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823Errors, e.g. transmission errors
    • H04L43/0829Packet loss
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/08Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852Delays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/12Shortest path evaluation
    • H04L45/123Evaluation of link metrics
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/12Shortest path evaluation
    • H04L45/124Shortest path evaluation using a combination of metrics

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The embodiment of the invention provides a method and a device for accelerating access of dynamic content, wherein the method comprises the following steps: acquiring a first communication access detection result of a manager of each node for performing communication access detection on acceleration servers of other nodes and a target source station; based on the corresponding relation between the manager and the acceleration server of each node and the first communication access detection result corresponding to the manager, calculating the optimal path from the acceleration server of each node to the target source station according to an optimal path algorithm; and storing the optimal path from the acceleration server of each node to the target source station into the memory of the acceleration server of the corresponding node, so that when the dynamic content access request of the target source station is received, the corresponding target acceleration server performs dynamic content access based on the optimal path stored in the memory. The method reduces the influence of detection on the acceleration server by utilizing the management machine to detect, and reduces the cost of the acceleration server by multiplexing the management machine with the machine room as the detection server.

Description

Dynamic content acceleration access method and device
Technical Field
The invention relates to the technical field of content distribution networks, in particular to a method and a device for accelerating access of dynamic content.
Background
With the development of internet technology, new social entertainment such as forum, mobile payment, instant messaging, e-commerce and the like gradually replace traditional network activities (such as searching, mailbox and the like), and the development of the technology also promotes the development and popularization of dynamic website technology. More and more websites contain dynamic content. Because more functions and personalized pages, such as user registration, user login, online transactions, user management, order management, etc., can be implemented using dynamic websites. However, for a dynamic website which cannot be cached, on one hand, the influence of the inherent problems of the Internet (interconnection and interworking problems, packet loss and retransmission delay problems of the public network and the like) on the access of a user is more difficult to solve; dynamic web sites on the other hand are more sensitive. These all present significant challenges to dynamic web sites. Accordingly, more and more dynamic websites use CDN technology to improve their user access experience.
The current mainstream dynamic content acceleration access method in the industry is as follows:
the system consists of dynamic acceleration servers distributed around the world and a centrally deployed central routing server. The dynamic acceleration servers distributed around the world initiate detection on other dynamic acceleration servers and source stations of dynamic content in the network, then the detection result is reported to a central routing server, the central routing server calculates an optimal path (generally the fastest path to the source station) from each dynamic acceleration server to each source station by using a shortest path algorithm, and the optimal path is issued to the corresponding acceleration server. When a user requests dynamic content from a source station, the request reaches the edge's dynamic acceleration server, which will follow the optimal path back to the source for content. This solution has the following problems: the detection server and the data transmission server are shared, and the detection process can influence the performance of the server, thereby influencing the data transmission performance actually requested by a user.
Disclosure of Invention
In view of this, the embodiments of the present invention provide a method and an apparatus for accelerating access of dynamic content, so as to solve the problem that in the prior art, the method for accelerating access of dynamic content needs to be implemented by sharing a detection server and a data transmission server, and the detection process may affect the performance of the server, thereby affecting the data transmission performance actually requested by a user.
The embodiment of the invention provides a dynamic content acceleration access method, which is applied to a central routing server in a dynamic acceleration access system, and the dynamic acceleration access system further comprises: each node is provided with a management machine and an acceleration server in one-to-one correspondence, and the method comprises the following steps:
acquiring a first communication access detection result of a manager of each node for performing communication access detection on acceleration servers of other nodes and a target source station;
based on the corresponding relation between the manager and the acceleration server of each node and the first communication access detection result corresponding to the manager, calculating the optimal path from the acceleration server of each node to the target source station according to an optimal path algorithm;
and storing the optimal path from the acceleration server of each node to the target source station into the memory of the acceleration server of the corresponding node, so that when the dynamic content access request of the target source station is received, the corresponding target acceleration server performs dynamic content access based on the optimal path stored in the memory.
Optionally, the obtaining a first communication access detection result of the manager of each node to perform communication access detection on the acceleration server of other nodes and the target source station includes:
receiving a first communication access detection result sent by a current manager corresponding to a current node, wherein the first communication access detection result is that the current manager carries out communication access detection on acceleration servers of other nodes and the target source station respectively to obtain a corresponding second communication access detection result; based on the corresponding relation between the current manager and the current acceleration server of the current node, converting the second communication access detection result into a first communication access detection result of the acceleration server of the current acceleration server and the acceleration servers of the other nodes and the target source station, wherein the second communication access detection result comprises: transmission delay and/or packet loss rate.
Optionally, the storing the optimal path from the acceleration server of each node to the target source station in the memory of the acceleration server of the corresponding node includes:
and transmitting the optimal path from the current acceleration server to the target source station to a current supervisor of a node where the current acceleration server is located, so that the current supervisor sets the optimal path into a memory of the current acceleration server through an http interface.
Optionally, the current manager performs communication access detection on the acceleration servers of the other nodes and the target source station to obtain a corresponding second communication access detection result, which includes:
the current manager performs communication access detection on the target acceleration server to obtain a corresponding second communication access detection result;
judging whether a cross-operator exists between the current manager and the target acceleration server;
and when a cross-operator exists between the current manager and the target acceleration server, weighting the second communication access detection result to obtain a weighted second communication access detection result.
Optionally, the determining whether a cross-operator exists between the current supervisor and the target acceleration server includes:
acquiring a first IP library deployed by a current management machine and a target IP address corresponding to a target acceleration server;
judging whether the first IP library and the target IP address belong to the same operator or not;
and when the first IP library and the target IP address do not belong to the same operator, determining that a cross-operator exists between the current manager and the target acceleration server.
Optionally, the method further comprises:
acquiring a domain name corresponding to a first source station, wherein the first source station is a source station which needs to be subjected to dynamic content acceleration access through the dynamic acceleration access system;
performing domain name configuration in the dynamic acceleration access system based on the domain name corresponding to the first source station, and determining an acceleration domain name corresponding to the first source station;
when a dynamic content access request of the target source station is received, carrying out root domain name resolution on the dynamic content access request to determine the target source station, wherein the dynamic content access request comprises the following components: acceleration domain names corresponding to the target source stations;
and determining an acceleration server corresponding to a node with the nearest initiating position as the target acceleration server based on the initiating position of the dynamic content access request.
Optionally, the dynamic content access of the corresponding target acceleration server based on the optimal path stored in the memory includes:
the target acceleration server forwards the dynamic content access request according to an optimal path stored in a memory of the target acceleration server;
when the target source station receives the dynamic content access request, forwarding response data corresponding to the dynamic content access request to the target acceleration server according to the optimal path original path;
The target acceleration server provides the response data to the user.
The embodiment of the invention also provides a dynamic content acceleration access device which is applied to a central routing server in a dynamic acceleration access system, and the dynamic acceleration access system further comprises: each node is provided with a management machine and an acceleration server in one-to-one correspondence, and the device comprises:
the acquisition module is used for acquiring a first communication access detection result of the communication access detection of the manager of each node on the acceleration servers of other nodes and the target source station;
the first processing module is used for calculating the optimal path from the acceleration server of each node to the target source station according to an optimal path algorithm based on the corresponding relation between the management machine and the acceleration server of each node and the first communication access detection result corresponding to the management machine;
and the second processing module is used for storing the optimal path from the acceleration server of each node to the target source station into the memory of the acceleration server of the corresponding node, so that when the dynamic content access request of the target source station is received, the corresponding target acceleration server performs dynamic content access based on the optimal path stored in the memory.
The embodiment of the invention also provides electronic equipment, which comprises: the device comprises a memory and a processor, wherein the memory and the processor are in communication connection, the memory stores computer instructions, and the processor executes the computer instructions so as to execute the method provided by the embodiment of the invention.
The embodiment of the invention also provides a computer readable storage medium, which stores computer instructions for causing a computer to execute the method provided by the embodiment of the invention.
The technical scheme of the invention has the following advantages:
the embodiment of the invention provides a method and a device for accelerating access of dynamic content, which are applied to a central routing server in a dynamic accelerating access system, wherein the dynamic accelerating access system further comprises: each node is provided with a manager and an acceleration server in one-to-one correspondence, and a first communication access detection result of the manager of each node for carrying out communication access detection on the acceleration servers of other nodes and the target source station is obtained; based on the corresponding relation between the manager and the acceleration server of each node and the first communication access detection result corresponding to the manager, calculating the optimal path from the acceleration server of each node to the target source station according to an optimal path algorithm; and storing the optimal path from the acceleration server of each node to the target source station into the memory of the acceleration server of the corresponding node, so that when the dynamic content access request of the target source station is received, the corresponding target acceleration server performs dynamic content access based on the optimal path stored in the memory. Therefore, the influence of detection on the acceleration server is reduced by utilizing the detection mode of the manager of each node to detect the acceleration servers of other nodes, and the transmission performance of the data actually requested by the user can be ensured. Meanwhile, as the management machine in the same machine room is reused as the detection server, the cost of the acceleration server is further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a dynamic content acceleration access system according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for accelerating access to dynamic content in an embodiment of the invention;
FIG. 3 is a schematic diagram of a specific working process of the dynamic content acceleration access in an embodiment of the present invention;
FIG. 4 is a schematic diagram of a dynamic content acceleration access device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The technical features of the different embodiments of the invention described below may be combined with one another as long as they do not conflict with one another.
With the development of internet technology, new social entertainment such as forum, mobile payment, instant messaging, e-commerce and the like gradually replace traditional network activities (such as searching, mailbox and the like), and the development of the technology also promotes the development and popularization of dynamic website technology. More and more websites contain dynamic content. Because more functions and personalized pages, such as user registration, user login, online transactions, user management, order management, etc., can be implemented using dynamic websites. However, for a dynamic website which cannot be cached, on one hand, the influence of the inherent problems of the Internet (interconnection and interworking problems, packet loss and retransmission delay problems of the public network and the like) on the access of a user is more difficult to solve; dynamic web sites on the other hand are more sensitive. These all present significant challenges to dynamic web sites. Accordingly, more and more dynamic websites use CDN technology to improve their user access experience.
The current mainstream dynamic content acceleration access method in the industry is as follows:
the system consists of dynamic acceleration servers distributed around the world and a centrally deployed central routing server. The dynamic acceleration servers distributed around the world initiate detection on other dynamic acceleration servers and source stations of dynamic content in the network, then the detection result is reported to a central routing server, the central routing server calculates an optimal path (generally the fastest path to the source station) from each dynamic acceleration server to each source station by using a shortest path algorithm, and the optimal path is issued to the corresponding acceleration server. When a user requests dynamic content from a source station, the request reaches the edge's dynamic acceleration server, which will follow the optimal path back to the source for content. This solution has the following problems: the detection server and the data transmission server are shared, and the detection process can influence the performance of the server, thereby influencing the data transmission performance actually requested by a user. In addition, when a route is detected, all acceleration servers are treated equally, and the operator attribute of the acceleration server is not considered, so that the optimal path calculated according to the detection result is not optimal in practice. Because the detected packets are typically small, the detection values between the cross-operator nodes may be small, but the actual cross-operator data transmission often does not perform well.
The present invention mainly solves the two problems set forth above.
1. The method and the system solve the problem that the sharing of the detection server and the data transmission server affects the data transmission performance of the actual user request.
2. The method solves the problem that the detection values among acceleration servers of the cross operators directly participate in route selection, so that deviation exists between detection results and actual transmission effects.
Firstly, the technical terms related to the technical scheme are explained as follows:
accelerating domain name: domain names that require dynamic content acceleration using the present dynamic acceleration system.
Source station: the address of the source station server corresponding to the acceleration domain name can be IP or the domain name.
Edge node: the node closest to the user in the dynamic acceleration system, namely the node to which the user requests to access first.
And (5) returning to the source node: and directly establishing a node connected with the source station in the optimal path selected by the central routing server, namely, the last node belonging to the dynamic acceleration system before the request reaches the source station.
cname (Canonical Name): i.e., alias name, for resolving a domain name to another domain name, when the DNS system queries the name to the left of the CNAME, the DNS system will turn to the name to the right of the CNAME to query again, until the last PTR or a name is tracked, and after successful query, a response will be made, otherwise failure. For example, if a server uses docs.sample.com to access, and it is desired to access the server through docs.sample.com, then a CNAME record needs to be added to the DNS resolution server, the docs.sample.com is pointed to docs.sample.com, and after the CNAME record is added, all requests for access to docs.sample.com are transferred to docs.sample.com, so as to obtain the same content.
The embodiment of the invention provides a dynamic content acceleration access method, which is applied to a central routing server of a dynamic content acceleration access system shown in figure 1, wherein the dynamic content acceleration access system comprises the following components: the system comprises a central routing server and a plurality of nodes, wherein each node is provided with a management machine and an acceleration server in one-to-one correspondence, and the management machine and the corresponding acceleration server are arranged in the same machine room. As shown in fig. 2, the method for accelerating access to dynamic content specifically includes the following steps:
step S101: and acquiring a first communication access detection result of the manager of each node for performing communication access detection on acceleration servers of other nodes and the target source station.
Specifically, step S101 is performed by receiving a first communication access detection result sent by a current manager corresponding to a current node, where the first communication access detection result is that the current manager performs communication access detection on acceleration servers and target source stations of other nodes respectively, so as to obtain a corresponding second communication access detection result; based on the corresponding relation between the current manager and the current acceleration server of the current node, converting the second communication access detection result into a first communication access detection result of the acceleration server of the current acceleration server and the acceleration servers of the rest nodes and the target source station, wherein the second communication access detection result comprises: transmission delay and/or packet loss rate.
Step S102: and calculating the optimal path from the acceleration server to the target source station of each node according to an optimal path algorithm based on the corresponding relation between the management machine and the acceleration server of each node and the first communication access detection result corresponding to the management machine.
Specifically, a resource planning person maintains a resource planning table in the system, wherein the table is a table for recording the corresponding relation between an acceleration server and a manager in the dynamic content acceleration system, the resource planning person enters the system for maintenance, and the resource planning table is synchronously updated whenever a new node is online or a server in an online node is changed, so that the corresponding relation between the manager and the acceleration server is always consistent with the actual situation. And secondly, each supervisor can issue an IP library list through the platform, and the IP library records the operator attributes corresponding to different network segment IPs. Once the IP library is updated, the platform will re-send the updated IP library to each supervisor.
The manager of each node in the dynamic acceleration access system is responsible for replacing (because the manager and the acceleration server are deployed with a machine room, the network states of the manager and the acceleration server are the same, and the acceleration server can be replaced for detection) the acceleration server of the node to detect the acceleration servers and all source stations of other nodes. The detection result is reported to the central routing server by the management machine through the http interface, and the central routing server acquires the detection result (usually, the transmission delay rtt and the retransmission ratio). And inquiring the corresponding relation between the management machine and the acceleration server in the resource planning table, and converting the detection results of the management machine for detecting other acceleration servers and the source station into detection results of the acceleration server corresponding to the management machine for detecting other acceleration servers and the source station.
In addition, in practical application, the supervisor may also convert the first communication access detection result into a second communication access detection result of the acceleration server of each node to the acceleration server of the other node and the target source station based on the correspondence between the supervisor and the acceleration server of each node, and then directly send the second communication access detection result to the central routing server, so that more data processing work is transferred to the supervisor for decentralized execution, and the processing efficiency of the routing server is further improved, which is not limited by the invention.
Specifically, the central routing server is responsible for receiving detection results reported by the manager of each node, and calculating the optimal path from the acceleration server of each edge node to each source station according to an optimal path algorithm.
Step S103: and storing the optimal path from the acceleration server of each node to the target source station into the memory of the acceleration server of the corresponding node, so that when the dynamic content access request of the target source station is received, the corresponding target acceleration server performs dynamic content access based on the optimal path stored in the memory.
Specifically, in step S103, the optimal path from the acceleration server of each node to the target source station is stored in the memory of the acceleration server of the corresponding node, and specifically, the optimal path from the current acceleration server to the target source station is issued to the current supervisor of the node where the current acceleration server is located, so that the current supervisor sets the optimal path into the memory of the current acceleration server through the http interface.
The optimal path from each edge node to each source station is issued by the central routing server to the supervisor of the corresponding edge node. The manager sets an optimal path from the node to each source station configured in the dynamic acceleration system in the memory of the acceleration server of the node through the http interface.
By executing the steps, the method for accelerating access of dynamic content provided by the embodiment of the invention reduces the influence of detection on the acceleration server by utilizing the detection mode of the manager of each node to detect the acceleration servers of other nodes, and can further ensure the transmission performance of the actual request data of the user. Meanwhile, as the management machine in the same machine room is reused as the detection server, the cost of the acceleration server is further reduced.
Specifically, in an embodiment, the current supervisor performs communication access detection on the acceleration server and the target source station of each of the other nodes to obtain a corresponding second communication access detection result, and specifically includes the following steps:
step S201: and the current manager performs communication access detection on the target acceleration server to obtain a corresponding second communication access detection result.
Step S202: and judging whether a cross-operator exists between the current management machine and the target acceleration server. If no cross-operator exists between the current supervisor and the target acceleration server, the second communication access probe result is not processed.
Step S203: and when the cross-operator exists between the current manager and the target acceleration server, weighting the second communication access detection result to obtain a weighted second communication access detection result.
Specifically, in an embodiment, the step S202 specifically includes the following steps:
step S301: and acquiring a first IP library deployed by the current management machine and a target IP address corresponding to the target acceleration server.
Step S302: and judging whether the first IP library and the target IP address belong to the same operator.
Step S303: and when the first IP library and the target IP address do not belong to the same operator, determining that a cross-operator exists between the current supervisor and the target acceleration server. If the first IP library and the target IP address belong to the same operator, no cross-operator exists between the current supervisor and the target acceleration server.
Specifically, the supervisor judges whether the detection result contains a detection value of a cross-operator by searching an IP library deployed on the supervisor, and if the detection result contains the detection value of the cross-operator, the detection value of the cross-operator comprises a mobile node cross-telecommunication node, a mobile node cross-communication node, a telecommunication node cross-mobile node, a telecommunication node cross-communication node, a communication node cross-telecommunication node, a communication node cross-mobile node, a mobile node return communication source station, a mobile node return power source station, a telecommunication node return mobile source station, a telecommunication node return communication source station, a communication node return power source station, a communication node return mobile source station and the like. The specific weighting process is to set a weighting coefficient for the second communication access detection result, where the weighting coefficient can be configured according to actual needs and must be greater than 1.0, so as to ensure that the deviation between the optimal path selected by the central routing server and the optimal path in actual transmission is as small as possible after the nodes with multiple operator attributes are added. The weighting coefficient may analyze big data of long-term operation products to derive an optimal coefficient, which may be configured to be 1.2, for example. And after the cross-operation detection result is weighted, the management machine reports the processed detection result to the central routing server through an http interface.
Specifically, in an embodiment, the method for accelerating access to dynamic content further includes the following steps:
step S104: and acquiring the domain name corresponding to the first source station.
The first source station is a source station which needs to be subjected to dynamic content acceleration access through a dynamic acceleration access system.
Step S105: and carrying out domain name configuration in the dynamic acceleration access system based on the domain name corresponding to the first source station, and determining the acceleration domain name corresponding to the first source station.
Specifically, a source station that needs to use the dynamic content acceleration access system provided by the embodiment of the present invention to perform dynamic content acceleration access needs to perform domain name configuration in the system in advance, and after the system configuration is completed, a cname needs to be provided, and the resolution of the acceleration domain name needs to be directed to the cname.
Step S106: and when receiving the dynamic content access request of the target source station, carrying out root domain name resolution on the dynamic content access request to determine the target source station.
Wherein the dynamic content access request includes: and accelerating the domain name corresponding to the target source station.
Step S107: and determining an acceleration server corresponding to a node with the nearest initiating position as a target acceleration server based on the initiating position of the dynamic content access request.
Specifically, when a user requests to accelerate a domain name, the acceleration server of a certain edge node of the system is accessed through root domain name resolution, and in the embodiment of the invention, the resolution is performed according to the principle of near-same operation, namely, the acceleration server corresponding to the node which has the closest initiating position distance to the dynamic content access request and belongs to the same operator is determined as the target acceleration server.
Specifically, in an embodiment, the dynamic content access is performed by the corresponding target acceleration server in step S103 based on the optimal path stored in the memory, and the method specifically includes the following steps:
step S401: and the target acceleration server forwards the dynamic content access request according to the optimal path stored in the memory of the target acceleration server.
Specifically, the acceleration server of the edge node performs request forwarding by searching for the optimal path of the source return of the acceleration domain name in the memory and following the optimal path, and when forwarding, the optimal path carries the optimal path information at the head of the request, and each time the request passes through a node, the optimal path removes an IP passing through the node, and only the IP of the source return node and the IP of the source station remain when the optimal path reaches the source return node, so that the source return node knows that the next hop of the node is the source station, and when the request is forwarded to the source station, the head information of the optimal path is removed, and after some other processing of the source return logic is performed (if needed), the request is forwarded to the source station.
Step S402: when the target source station receives the dynamic content access request, response data corresponding to the dynamic content access request is forwarded to the target acceleration server in a primary way according to the optimal path.
Step S403: the target acceleration server provides the response data to the user.
Specifically, after the source station receives the request, the source station responds to the requested content, and the response content is forwarded to the user in the original path according to the path of the request forwarded to the source station, so that the user can obtain the requested content.
Because the detection between the nodes and the detection of the nodes to the source station are periodically performed, the smaller the detection frequency is, the higher the detection instantaneity is, the detection result can reflect the current actual network condition, and once the network between two nodes or from one node to the source station shakes, the network can be quickly captured through the detection, so that the optimal path can be updated in time. Therefore, the dynamic content acceleration method and the system thereof can effectively improve the dynamic content transmission efficiency, and can effectively reduce the performance influence of detection on the acceleration server because the detection and the data transmission are shared by different servers.
In addition, the invention also provides a method for reducing the probability of selecting the cross-operator link by means of human intervention aiming at the detection route selection among the cross-operator nodes, so that the accuracy of the cross-operator route selection can be effectively improved.
The dynamic content acceleration access method provided by the embodiment of the invention is described in detail below with reference to a specific application example.
As shown in fig. 3, the specific working procedure of the dynamic content acceleration access is as follows:
step one, performing acceleration configuration of a domain name A in the dynamic acceleration access system to generate a cname B.
And step two, the resolution of the domain name A is pointed to the cname B.
And thirdly, the manager of each node is responsible for replacing the acceleration server of the node to detect the acceleration servers of other nodes and the source station of the domain name A, and obtaining detection results (usually, rtt and packet loss rate).
And fourthly, the corresponding relation between the management machine and the acceleration server in the resource planning table is inquired by the management machine of each node, and the acceleration server corresponding to the management machine is found.
And fifthly, each supervisor converts the detection results of the acceleration server and the domain name A source station to the detection results of the acceleration server and the domain name A source station corresponding to the supervisor.
And step six, each manager searches the IP library deployed by the local machine and judges whether a detection result crossing operators exists or not. If yes, executing a step seven; if not, directly executing the step eight.
And step seven, weighting the cross-operator detection nodes.
And step eight, the management machine of each node reports the processed detection result to the central routing server.
And step nine, the central routing server is responsible for collecting detection results reported by the management machine of each node, and calculating the optimal path from the acceleration server of each edge node to the source station of the domain name A according to an optimal path algorithm.
And step ten, the central routing server transmits the calculated optimal path from each edge node to the domain name A source station to the manager of the corresponding edge node (assuming that the optimal path from the node 1 to the domain name A source station is the IP-domain name A source station of the IP-acceleration server 3 of the IP-acceleration server 2 of the acceleration server 1).
Step eleven, after receiving the optimal path issued by the central routing server, the manager 1 of the node 1 sets the optimal path into the memory of the acceleration server of the node through the http interface.
And step twelve, a user initiates a request for the domain name A, and after dns resolution, the request reaches an acceleration server 1 of the same operator node 1 nearest to the user.
And step thirteen, the acceleration server 1 inquires the optimal path of the node in the memory to the domain name A source station.
And fourteen, the acceleration server 1 forwards the request according to the optimal path, inserts the optimal path into the request header, and removes one already-passed node IP after each node passes. The acceleration server through which the subsequent forwarding passes also performs.
Fifteen, judging whether the optimal path of the request header only remains 2 IPs or not when the request passes through one acceleration server. If yes, executing a step sixteen; if not, continuing to forward the request according to the step fourteen.
Sixthly, deleting the request header of the optimal path, and processing some source-returning logic and then source-returning (the source-returning node is node 3 in the embodiment).
Seventeenth, after the source station receives the request, the response data is forwarded to the user in the original path according to the path of the request.
The technical scheme provided by the embodiment of the invention has the following advantages:
compared with the prior art, the method has a better system architecture, reduces the influence of detection on the acceleration server, and can ensure the transmission performance of the actual request data of the user. Meanwhile, as the management machine in the same machine room is reused as the detection server, the cost of the acceleration server is further reduced. Therefore, the technical scheme provided by the invention has obvious advantages in performance and cost compared with the prior scheme.
Compared with the prior art, the method has better effect in the aspect of selecting routes among the cross-operator nodes. Because the detected data packets are typically small, the detection values between the cross-operator nodes may be small, but the performance is often not good when data is actually transmitted across operators. The scheme provided by the invention reduces the probability of selecting the inter-operator links by weighting the detection results of inter-operator nodes and inter-operator back sources, and ensures that the links with operators are preferentially selected, and the routing result is more accurate.
By executing the steps, the method for accelerating access of dynamic content provided by the embodiment of the invention reduces the influence of detection on the acceleration server by utilizing the detection mode of the manager of each node to detect the acceleration servers of other nodes, and can further ensure the transmission performance of the actual request data of the user. Meanwhile, as the management machine in the same machine room is reused as the detection server, the cost of the acceleration server is further reduced.
The embodiment of the invention also provides a dynamic content acceleration access device, which is applied to a central routing server in the dynamic acceleration access system shown in fig. 1, and as shown in fig. 4, the dynamic content acceleration access device comprises:
the obtaining module 101 is configured to obtain a first communication access detection result of the communication access detection performed by the supervisor of each node on the acceleration server and the target source station of other nodes. For details, refer to the related description of step S101 in the above method embodiment, and no further description is given here.
The first processing module 102 is configured to calculate, according to an optimal path algorithm, an optimal path from the acceleration server to the target source station of each node based on a correspondence between the supervisor and the acceleration server of each node and a first communication access detection result corresponding to the supervisor. For details, refer to the related description of step S102 in the above method embodiment, and no further description is given here.
And the second processing module 103 is configured to store the optimal path from the acceleration server of each node to the target source station in the memory of the acceleration server of the corresponding node, so that when the dynamic content access request of the target source station is received, the corresponding target acceleration server performs dynamic content access based on the optimal path stored in the memory. For details, see the description of step S103 in the above method embodiment, and the details are not repeated here.
By the cooperation of the components, the dynamic content acceleration access device provided by the embodiment of the invention reduces the influence of detection on the acceleration server by utilizing the detection mode of the manager of each node to detect the acceleration servers of other nodes, and can further ensure the transmission performance of the actual request data of the user. Meanwhile, as the management machine in the same machine room is reused as the detection server, the cost of the acceleration server is further reduced.
Further functional descriptions of the above respective modules are the same as those of the above corresponding method embodiments, and are not repeated here.
There is also provided in accordance with an embodiment of the present invention, an electronic device, as shown in fig. 5, which may include a processor 901 and a memory 902, wherein the processor 901 and the memory 902 may be connected via a bus or otherwise, as exemplified by the bus connection in fig. 5.
The processor 901 may be a central processing unit (Central Processing Unit, CPU). The processor 901 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination thereof.
The memory 902 is used as a non-transitory computer readable storage medium for storing non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the methods in the method embodiments of the present invention. The processor 901 executes various functional applications of the processor and data processing, i.e., implements the methods in the above-described method embodiments, by running non-transitory software programs, instructions, and modules stored in the memory 902.
The memory 902 may include a storage program area and a storage data area, wherein the storage program area may store an operating device, at least one application program required for a function; the storage data area may store data created by the processor 901, and the like. In addition, the memory 902 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 902 optionally includes memory remotely located relative to processor 901, which may be connected to processor 901 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
One or more modules are stored in the memory 902 that, when executed by the processor 901, perform the methods of the method embodiments described above.
The specific details of the electronic device may be correspondingly understood by referring to the corresponding related descriptions and effects in the above method embodiments, which are not repeated herein.
It will be appreciated by those skilled in the art that implementing all or part of the above-described methods in the embodiments may be implemented by a computer program for instructing relevant hardware, and the implemented program may be stored in a computer readable storage medium, and the program may include the steps of the embodiments of the above-described methods when executed. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), or a Solid State Drive (SSD); the storage medium may also comprise a combination of memories of the kind described above.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations are within the scope of the invention as defined by the appended claims.

Claims (7)

1. A dynamic content acceleration access method, applied to a central routing server in a dynamic acceleration access system, the dynamic acceleration access system further comprising: the method is characterized by comprising the following steps that:
acquiring a first communication access detection result of a manager of each node for performing communication access detection on acceleration servers of other nodes and a target source station;
based on the corresponding relation between the manager and the acceleration server of each node and the first communication access detection result corresponding to the manager, calculating the optimal path from the acceleration server of each node to the target source station according to an optimal path algorithm;
storing the optimal path from the acceleration server of each node to the target source station into the memory of the acceleration server of the corresponding node, so that when a dynamic content access request of the target source station is received, the corresponding target acceleration server performs dynamic content access based on the optimal path stored in the memory;
the obtaining a first communication access detection result of the manager of each node for performing communication access detection on acceleration servers of other nodes and a target source station includes:
Receiving a first communication access detection result sent by a current manager corresponding to a current node, wherein the first communication access detection result is that the current manager carries out communication access detection on acceleration servers of other nodes and the target source station respectively to obtain a corresponding second communication access detection result; based on the corresponding relation between the current manager and the current acceleration server of the current node, converting the second communication access detection result into a first communication access detection result of the acceleration server of the current acceleration server and the acceleration servers of the other nodes and the target source station, wherein the second communication access detection result comprises: transmission delay and/or packet loss rate;
the current manager performs communication access detection on acceleration servers of other nodes and the target source station respectively to obtain a corresponding second communication access detection result, and the method comprises the following steps:
the current manager performs communication access detection on the target acceleration server to obtain a corresponding second communication access detection result;
judging whether a cross-operator exists between the current manager and the target acceleration server;
when a cross-operator exists between the current manager and the target acceleration server, weighting the second communication access detection result to obtain a weighted second communication access detection result; the weighting process sets a weighting coefficient for the second communication access detection result, wherein the weighting coefficient is larger than 1.0;
The determining whether a cross-operator exists between the current supervisor and the target acceleration server includes:
acquiring a first IP library deployed by a current management machine and a target IP address corresponding to a target acceleration server;
judging whether the first IP library and the target IP address belong to the same operator or not;
and when the first IP library and the target IP address do not belong to the same operator, determining that a cross-operator exists between the current manager and the target acceleration server.
2. The method of claim 1, wherein storing the optimal path of the acceleration server of each node to the target source station into the memory of the acceleration server of the corresponding node comprises:
and transmitting the optimal path from the current acceleration server to the target source station to a current supervisor of a node where the current acceleration server is located, so that the current supervisor sets the optimal path into a memory of the current acceleration server through an http interface.
3. The method as recited in claim 1, further comprising:
acquiring a domain name corresponding to a first source station, wherein the first source station is a source station which needs to be subjected to dynamic content acceleration access through the dynamic acceleration access system;
Performing domain name configuration in the dynamic acceleration access system based on the domain name corresponding to the first source station, and determining an acceleration domain name corresponding to the first source station;
when a dynamic content access request of the target source station is received, carrying out root domain name resolution on the dynamic content access request to determine the target source station, wherein the dynamic content access request comprises the following components: acceleration domain names corresponding to the target source stations;
and determining an acceleration server corresponding to a node with the nearest initiating position as the target acceleration server based on the initiating position of the dynamic content access request.
4. The method of claim 1, wherein the corresponding target acceleration server performs dynamic content access based on the optimal path stored in the memory, comprising:
the target acceleration server forwards the dynamic content access request according to an optimal path stored in a memory of the target acceleration server;
when the target source station receives the dynamic content access request, forwarding response data corresponding to the dynamic content access request to the target acceleration server according to the optimal path original path;
the target acceleration server provides the response data to the user.
5. A dynamic content acceleration access device, applied to a central routing server in a dynamic acceleration access system, the dynamic acceleration access system further comprising: the system comprises a plurality of nodes, wherein each node is provided with a management machine and an acceleration server in one-to-one correspondence, and the management machine and the corresponding acceleration server are deployed in the same machine room, and is characterized in that the system comprises:
the acquisition module is used for acquiring a first communication access detection result of the communication access detection of the manager of each node on the acceleration servers of other nodes and the target source station; the obtaining a first communication access detection result of the manager of each node for performing communication access detection on acceleration servers of other nodes and a target source station includes: receiving a first communication access detection result sent by a current manager corresponding to a current node, wherein the first communication access detection result is that the current manager carries out communication access detection on acceleration servers of other nodes and the target source station respectively to obtain a corresponding second communication access detection result; based on the corresponding relation between the current manager and the current acceleration server of the current node, converting the second communication access detection result into a first communication access detection result of the acceleration server of the current acceleration server and the acceleration servers of the other nodes and the target source station, wherein the second communication access detection result comprises: transmission delay and/or packet loss rate; the current manager performs communication access detection on acceleration servers of other nodes and the target source station respectively to obtain a corresponding second communication access detection result, and the method comprises the following steps: the current manager performs communication access detection on the target acceleration server to obtain a corresponding second communication access detection result; judging whether a cross-operator exists between the current manager and the target acceleration server; when a cross-operator exists between the current manager and the target acceleration server, weighting the second communication access detection result to obtain a weighted second communication access detection result, wherein the weighting is to set a weighting coefficient for the second communication access detection result, and the weighting coefficient is larger than 1.0; the determining whether a cross-operator exists between the current supervisor and the target acceleration server includes: acquiring a first IP library deployed by a current management machine and a target IP address corresponding to a target acceleration server; judging whether the first IP library and the target IP address belong to the same operator or not; when the first IP library and the target IP address do not belong to the same operator, determining that a cross-operator exists between the current manager and the target acceleration server;
The first processing module is used for calculating the optimal path from the acceleration server of each node to the target source station according to an optimal path algorithm based on the corresponding relation between the management machine and the acceleration server of each node and the first communication access detection result corresponding to the management machine;
and the second processing module is used for storing the optimal path from the acceleration server of each node to the target source station into the memory of the acceleration server of the corresponding node, so that when the dynamic content access request of the target source station is received, the corresponding target acceleration server performs dynamic content access based on the optimal path stored in the memory.
6. An electronic device, comprising:
a memory and a processor, said memory and said processor being communicatively coupled to each other, said memory having stored therein computer instructions, said processor performing the method of any of claims 1-4 by executing said computer instructions.
7. A computer readable storage medium having stored thereon computer instructions for causing a computer to perform the method of any of claims 1-4.
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