WO2017080459A1

WO2017080459A1 - Method, device and system for caching and providing service contents and storage medium

Info

Publication number: WO2017080459A1
Application number: PCT/CN2016/105244
Authority: WO
Inventors: 唐彦霞
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-11-10
Filing date: 2016-11-09
Publication date: 2017-05-18
Also published as: CN106686033A

Abstract

Disclosed in the present invention are a method, device and system for caching and providing service contents, the method comprising: a request router (RR) hijacks an access request of a user equipment; the RR acquires an identifier corresponding to a uniform resource locator (URL) in the access request, and, the acquired identifier not being found in the pre-stored identifier, sends a pre-cached message to a content load balancer; the content load balancer acquires the identifier corresponding to the URL in the pre-cached message, and sends the pre-cached message to a caching device corresponding to the acquired identifier; the caching device acquires the identifier corresponding to the URL in the pre-cached message, calculates the path corresponding to the identifier, caches the contents which are downloaded from a server and correspond to the URL, to the path acquired by calculation, and sends a cache success message to the RR; and the RR saves the acquired identifier. The embodiments of the present invention provide a computer storage medium.

Description

Method, device, system and storage medium for caching and providing service content

Technical field

The present invention relates to the field of the Internet, and more particularly to a method and apparatus, a system, and a computer storage medium for caching and providing service content.

Background technique

With the rapid development of the Internet, various Internet applications are emerging, and the consumption of broadband resources is increasing. The traditional way of obtaining network content is the client-server model. All access requests from users are sent to the server for processing. , causing network congestion and server overload, resulting in a large user access delay.

In order to enhance the user experience, the cache system is increasingly popular with operators. FIG. 1 is a schematic diagram of a user acquiring network content. As shown in Figure 1, the user sends an access request to the server to access the network content through the access network and the router. The cache system is deployed in an existing Internet Protocol (IP) bearer network to store hot content or specific information in the Internet. The content is forwarded to the cache system by guiding the user's access request, and the cache system provides the user with the required Internet data, thereby avoiding directly downloading data from the server of the Internet source station, thereby effectively avoiding the congestion problem of the network link and reducing the user. The delay in accessing Internet content enhances the user's data service experience and also reduces the settlement costs incurred by Internet traffic.

The caching system supports the acceleration of Internet services such as Web (World Wide Web) browsing, file downloading, and video playback based on Hypertext Transfer Protocol (HTTP). The caching system uses locally stored file formats, audio and video, and file encoding methods. There are no specific requirements, all kinds of Internet audio, video, image, text and other files can be cached and accelerated services through the cache system.

The cache system supports mobile cellular networks (eg 2G, 3G or Long Term Evolution (LTE, Long Term) Evolution)), wireless local area network (WLAN), fixed broadband and other network access methods, and can provide services for different forms of terminals such as personal computers (PCs, personal computers) and mobile terminals.

Existing methods of caching and serving content generally include:

The request routing (RR, Request Routing) device hijacks the access request of the user equipment; wherein the access request includes a Uniform Resource Locator (URL); the RR device forwards the access request to the content load balancing device, and the content load balancing device adopts the The hash algorithm calculates the hash value of the URL in the access request, and forwards the access request to the cache device corresponding to the calculated hash value; the cache device uses the message digest algorithm 5 (MD5, Message Digest Algorithm 5) to calculate the URL corresponding Path, and download the content corresponding to the URL from the server, save the downloaded content to the calculated path, and send the downloaded content to the user device.

However, in the specific implementation, it is found that there is a large amount of redundant content in the cached content, and the redundant content not only occupies a large amount of storage space, but also reduces the rate of bandwidth.

Summary of the invention

The embodiment of the invention provides a method, a device, a system and a computer storage medium for caching and providing service content, and is expected to improve the utilization of the storage space and increase the usage rate of the bandwidth.

The embodiment of the invention provides a method for caching and providing service content, including:

Requesting the routing RR device to hijack the access request of the user equipment;

The RR device obtains the identifier corresponding to the resource locator URL in the access request, finds the obtained identifier in the pre-stored identifier, and sends a pre-cache message to the content load balancing device.

The content load balancing device obtains the identifier corresponding to the URL in the pre-cached message, and sends the pre-cached message to the cache device corresponding to the obtained identifier;

The cache device obtains the identifier corresponding to the URL in the pre-cached message, calculates a path corresponding to the identifier, and caches the content corresponding to the URL downloaded from the server to the calculated path, and sends the path to the RR device. Send a message that the cache is successful;

The RR device saves the obtained identification.

The embodiment of the present invention further provides a request routing RR device, which at least includes:

The hijacking module is configured to hijack an access request of the user equipment;

The first sending module is configured to obtain an identifier corresponding to the resource locator URL in the access request, and the obtained identifier is not found in the pre-stored identifier, and the pre-cache message is sent to the content load balancing device.

The first receiving module is configured to receive a message that the cache of the cache device corresponding to the identifier corresponding to the URL corresponding to the URL in the access request is successful, and save the obtained identifier.

The invention also proposes a content load balancing device, which at least comprises:

a second receiving module, configured to receive a pre-cache message from the request routing RR device;

The second sending module is configured to obtain an identifier corresponding to the URL in the pre-cached message, and send the pre-cached message to the cache device corresponding to the obtained identifier.

The invention also proposes a cache device, which at least comprises:

a third receiving module, configured to receive a pre-cache message from the content load balancing device;

The third sending module is configured to obtain an identifier corresponding to the URL in the pre-cached message, calculate a path corresponding to the identifier, cache the content corresponding to the URL downloaded from the server to the calculated path, and send a message that the cache succeeds to the RR device. .

The invention also proposes a system for caching and serving content, comprising at least:

The requesting routing RR device is configured to hijack the access request of the user equipment; obtaining the identifier corresponding to the resource locator URL in the access request, not finding the obtained identifier in the pre-saved identifier, and sending the pre-cache message to the content load balancing device; Receiving a message that the cache is successful from the cache device, and saving the obtained identifier;

The content load balancing device is configured to obtain an identifier corresponding to the URL in the pre-cached message, and send the pre-cached message to the cache device corresponding to the obtained identifier;

The cache device is configured to obtain an identifier corresponding to the URL in the pre-cached message, calculate a path corresponding to the identifier, cache the content corresponding to the URL downloaded from the server to the calculated path, and send a message that the cache is successful to the RR device.

An embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing method.

The embodiment of the invention further provides another method for caching and providing service content, including:

Hijacking access requests from user devices;

Obtaining an identifier corresponding to the resource locator URL in the access request;

Sending a pre-cache message to the content load balancing device when the obtained identifier is not found in the pre-saved identifier;

The message that the cache of the cache device corresponding to the identifier corresponding to the URL corresponding to the URL in the access request is successfully received is saved, and the obtained identifier is saved.

This embodiment further provides another method for caching and providing service content, including:

Receiving a pre-cache message from the request routing RR device;

The identifier corresponding to the URL in the pre-cached message is obtained, and the pre-cached message is sent to the cache device corresponding to the obtained identifier.

Receiving a pre-cache message from the content load balancing device;

The identifier corresponding to the URL in the pre-cached message is obtained, and the path corresponding to the identifier is calculated, and the content corresponding to the URL downloaded from the server is cached to the calculated path, and the message that the cache is successful is sent to the RR device.

The technical solution of the embodiment of the present invention includes: requesting the routing RR device to hijack the access request of the user equipment; the RR device acquiring the identifier corresponding to the resource locator URL in the access request, and not finding the obtained identifier in the pre-saved identifier, to the content The load balancing device sends a pre-cache message; The load balancing device obtains the identifier corresponding to the URL in the pre-cached message, and sends the pre-cached message to the cache device corresponding to the obtained identifier. The cache device obtains the identifier corresponding to the URL in the pre-cached message, and calculates the path corresponding to the identifier. The content corresponding to the URL downloaded on the server is cached to the calculated path, and the message that the cache is successful is sent to the RR device; the RR device saves the obtained identifier. With the solution provided by the embodiment of the present invention, the identifier corresponding to the URL is used as the unique identifier of the content, so that the same content corresponding to different URLs only needs to be cached once, thereby improving the utilization of the storage space and reducing the bandwidth wasted by caching the same content. , thereby increasing the effective use of bandwidth.

DRAWINGS

FIG. 1 is a schematic diagram of a user acquiring network content;

2 is a schematic flowchart of a method for caching and providing service content according to an embodiment of the present invention;

3 is a schematic structural diagram of an RR device according to an embodiment of the present invention;

4 is a schematic structural diagram of a content load balancing apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a cache device according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a system for caching and serving content according to an embodiment of the present invention.

detailed description

The present invention will be further described in conjunction with the accompanying drawings.

The study found that in the usual method of caching content, the URL is used as the unique identifier of the content to cache the content. Since the URL of the same content will be different due to some parameters, the same content will be saved in the cache system multiple times. , wasted storage space, and reduced bandwidth usage due to the need to download content from the server multiple times. E.g, Http://222.132.5.19/edge.v.iask.com/138364612.hlv? KID=sina,viask&Expires=1435766400&ssig=sjhlPQskgr&sid=138364612_1435653150890_1751_68896&wshc_tag=1&wsts_tag=55925414&wsid_tag=d233c309&wsiphost=ipdbm and http://218.58.222.57/edge.v.iask.com/138364612.hlv? KID=sina, viask&Expires=1435766400&ssig=sjhlPQskgr&sid=138364612_1435653263781_643_35962&wshc_tag=1&wsts_tag=55925485&wsid_tag=d233c309&wsiphost=ipdbm; where 222.132.5.19 and 218.58.222.57 are the client's IP address, and edge.v.iask.com is the name of the visited website, 138364612. Hlv is the content name of the visit,? The latter is the URL parameter, the two URLs represent the same content, and the URL is different because of the parameters, which will cause the content to be saved twice, wasting storage space, and reducing the bandwidth rate. In order to improve the effective utilization of the storage space and the bandwidth, the technical solution provided in this embodiment reduces the redundant cache content. For the specific implementation, reference may be made to FIG. 2, which provides a method for caching content, including:

Step 200: The RR device hijacks an access request of the user equipment.

In this step, the URL is included in the access request.

In this step, the RR device hijacks the access request of the user equipment, that is, the access request of the user equipment is no longer sent to the server, but is sent to the content load balancing device.

In this step, the access request of the RR device to hijack the user equipment is well-known in the art, and is not intended to limit the scope of protection of the present invention, and details are not described herein again.

Step 201: The RR device acquires an identifier corresponding to the URL in the access request, and does not find the obtained identifier in the pre-stored identifier, and sends a pre-cache message to the content load balancing apparatus.

In this step, the RR device also forwards an access request from the user equipment to the server, and the server provides a service for the user equipment.

In this step, the identifier corresponding to the URL in the access request obtained by the RR device includes:

The RR device searches for the identifier corresponding to the regular expression matching the URL in the access request in the correspondence between the preset regular expression and the identifier.

The manner in which the RR device determines whether the URL in the access request matches the regular expression in the corresponding relationship is a well-known technique of those skilled in the art, and is not intended to limit the scope of the present invention, and details are not described herein again. The present invention emphasizes that the identifier corresponding to the regular expression matching the URL is the unique identifier of the content corresponding to the URL, so that the same content corresponding to different URLs only needs to be cached once, thereby improving the utilization of the storage space and improving the utilization. Bandwidth usage.

For example, when the URL is:

http://222.73.61.214/youku/6573718061135810187D003A7D/0300080500545A25632B57092B13A2E773DF5A-0614-5810-DC51-EB36488C7C74.mp4? Nk=67147729540_23587507484&ns=6490028_2707360&special=true, the regular expression is:

Http://%d+%.%d+%.%d+%.%d+/youku/%x+/(%x+-%x+-%x+-%x+-%x+%.%w+)%? When nk=%d+_%d+&ns=(%d+_%d+)&.+, the URL and the regular expression match.

Among them, %d represents a number, %. represents any character, %x represents a hexadecimal number, %w represents a letter or a number, + represents a plurality, and &ns is a parameter of a URL.

Among them, the regular expression can be summarized by looking at the URL of each content.

Wherein, the one-to-one correspondence between the regular expression and the identifier, the identifier corresponding to the regular expression is http://www.youku.com/%1/%2, %1, and %2 represents the bracket portion in the regular expression. .

Then the identifier corresponding to the above URL is:

http://www.youku.com/0300080500545A25632B57092B13A2E773DF5A-0614-5810-DC51-EB36488C7C74.mp4/6490028_2707360.

In this step, when the RR device finds the obtained identifier in the pre-stored identifier, the RR device sends an identifier indicating the redirection to the user equipment; the content load balancing device receives the access request from the user equipment, and obtains the access request. The identifier corresponding to the URL is sent to the user equipment to indicate the redirected identifier. The cache device corresponding to the obtained identifier receives the access request from the user equipment, obtains the identifier corresponding to the URL in the access request, calculates the path corresponding to the identifier, and uses the path. The content in the content is sent to the user device.

The RR device further sends an address of the content load balancing device to the user equipment, and the user equipment sends an access request to the content load balancing device according to the address of the content load balancing device.

The content load balancing device further sends the obtained address of the cache device corresponding to the obtained identifier to the user equipment, and the user equipment sends an access request to the cache device corresponding to the obtained identifier according to the address of the cache device corresponding to the obtained identifier.

The cache device corresponding to the obtained identifier refers to a cache device corresponding to the hash value corresponding to the obtained identifier.

The cache device corresponding to the obtained identifier may use the MD5 to calculate the path corresponding to the identifier, and the specific implementation is not limited to the scope of protection of the present invention, and details are not described herein again. The present invention emphasizes that the identifier is used as a unique identifier of the content to cache the content, thereby improving the utilization of the storage space and increasing the rate of the bandwidth.

In this step, the pre-cached message includes a URL, and may also include an address of the RR device.

Step 202: The content load balancing device obtains an identifier corresponding to the URL in the pre-cached message, and sends the pre-cached message to the cache device corresponding to the obtained identifier.

In this step, the identifier corresponding to the URL in the pre-cache message obtained by the content load balancing device includes:

The content load balancing device searches for an identifier corresponding to the regular expression that matches the URL in the pre-cached message in the correspondence between the preset regular expression and the identifier.

The manner in which the content load balancing device determines whether the URL in the pre-cached message matches the regular expression in the corresponding relationship is a well-known technique of those skilled in the art, and is not intended to limit the scope of protection of the present invention, and details are not described herein again. The present invention emphasizes that the identifier corresponding to the regular expression matching the URL is the unique identifier of the content corresponding to the URL, so that the same content corresponding to different URLs only needs to be cached once, thereby improving the utilization of the storage space and improving the utilization. Bandwidth usage.

In this step, the cache device that sends the pre-cache message to the obtained identifier includes:

The hash value corresponding to the obtained identifier is calculated by using a hash algorithm, and the pre-cache message is sent to the cache device corresponding to the calculated hash value.

Step 203: The cache device obtains the identifier corresponding to the URL in the pre-cached message, calculates the path corresponding to the identifier, caches the content corresponding to the URL downloaded from the server to the calculated path, and sends a message indicating that the cache is successful to the RR device.

In this step, the identifier corresponding to the URL in the pre-cache message obtained by the cache device includes:

The cache device searches for an identifier corresponding to the regular expression matching the URL in the pre-cached message in a correspondence between the preset regular expression and the identifier.

The manner in which the cache device determines whether the URL in the pre-cached message matches the regular expression in the corresponding relationship is a well-known technique of those skilled in the art, and is not intended to limit the scope of protection of the present invention, and details are not described herein again. The present invention emphasizes that the identifier corresponding to the regular expression matching the URL is the unique identifier of the content corresponding to the URL, so that the same content corresponding to different URLs only needs to be cached once, thereby improving the utilization of the storage space and improving the utilization. Bandwidth usage.

In this step, the path corresponding to the identifier of the MD5 can be used to calculate the corresponding path, and the specific technology is not limited to the scope of protection of the present invention, and details are not described herein again.

In this step, how to download the content corresponding to the URL from the server is specifically known to those skilled in the art, and is not intended to limit the scope of the present invention, and details are not described herein.

In this step, the cache device sends a message indicating that the cache is successful to the RR device according to the address of the RR device in the pre-cache message.

Step 204: The RR device saves the obtained identifier.

Optionally, the method further includes:

The RR device determines that the number of times the content corresponding to the URL is accessed is greater than or equal to a first preset threshold.

Optionally, the RR device obtains an access request sent by the user equipment, obtains an identifier corresponding to the URL in the access request, and determines that the obtained identifier is accessed by the first preset threshold.

The RR device sends an access request to the server when the RR device determines that the number of times the content corresponding to the URL is accessed is less than the first preset threshold.

That is, the access request sent by the user equipment is obtained by the RR device, and the access request is hijacked by the RR device only when the number of times the content corresponding to the URL in the access request is accessed is greater than or equal to the first preset threshold. The system of the present invention serves the user equipment. When the number of times the content corresponding to the URL in the access request is accessed is less than the first preset threshold, the RR device sends the access request to the server, and the server serves the user equipment.

Optionally, when the cache device determines that the cached content exceeds the validity period, or determines that the total size of the cache or the number of caches is greater than or equal to a second preset threshold, the cache device deletes the cached content that exceeds the validity period, or deletes The cached content with the least number of visits.

The foregoing method for buffering and providing the service content, which is respectively received by the cache and the method for providing the service content in each device,

For example, in the RR device, the method for caching and providing the service content may include:

Hijacking access requests from user devices;

The RR device sends the corresponding identifier to the content load balancing device by hijacking the access request of the user equipment, and then receives the cached success message of the cache server, and saves the corresponding identifier, so that if there is a corresponding access request next time, When the URL is carried, the corresponding service content can be directly obtained from the cache device, thereby reducing cache redundancy and improving efficient use of the storage space. For a description of the URL, the access request, and the cached success message, refer to the foregoing embodiment, and the description will not be repeated here.

In some embodiments, the hijacking the access request of the user equipment includes: determining that the number of times the content corresponding to the URL is accessed is greater than or equal to a first preset threshold, hijacking an access request of the user equipment.

In some embodiments, the method further includes: searching, in a correspondence between the preset regular expression and the identifier, an identifier corresponding to the regular expression that matches the URL in the access request; When the obtained identifier is not found in the pre-stored identifier, the pre-cache message is sent to the content load balancing device, and the identifier obtained by the pre-stored identifier is not found, and the pre-cache message is sent to the content load balancing device.

In some embodiments, the method further includes: finding the obtained identifier in the pre-saved identifier, and transmitting the identifier indicating the redirect to the user equipment.

The embodiment further provides another method for caching and providing service content. The method is applied to a load balancing device, and includes:

Receiving a pre-cache message from the request routing RR device;

In some embodiments, the obtaining the identifier corresponding to the URL in the pre-cache message, and sending the pre-cache message to the cache device corresponding to the obtained identifier, includes: a correspondence between the preset regular expression and the identifier And searching for an identifier corresponding to the regular expression that matches the URL in the pre-cached message, and sending the pre-cached message to the cache device corresponding to the obtained identifier.

In other embodiments, the method further includes:

Receiving an access request from a user device;

Obtaining an identifier corresponding to the URL in the access request, and sending an identifier indicating the redirect to the user equipment.

The embodiment further provides another method for caching and providing service content. The method is applied to the cache device, and includes:

Receiving a pre-cache message from the content load balancing device;

The obtaining the identifier corresponding to the URL in the pre-cache message, calculating the path corresponding to the identifier, and buffering the content corresponding to the URL downloaded from the server to the calculated path, and sending the cache success message to the RR device, including: In the correspondence between the set regular expression and the identifier, searching for an identifier corresponding to the regular expression matching the URL in the pre-cached message, calculating a path corresponding to the identifier, and content corresponding to the URL downloaded from the server Cache to the calculated path and send a message that the cache is successful to the RR device.

In some embodiments, the method further includes:

It is determined that the cached content exceeds the validity period; or, the total size of the cache or the number of caches is determined to be greater than or equal to a second preset threshold, the cached content exceeding the validity period is deleted, or the cached content with the least number of times of access is deleted.

In some embodiments, the method further includes:

Receiving an access request from a user device;

Obtaining an identifier corresponding to the URL in the access request, calculating a path corresponding to the identifier, and sending the content in the path to the user equipment.

Referring to FIG. 3, an embodiment of the present invention further provides a request routing RR device, which at least includes:

The first receiving module is configured to receive a message that the cache of the cache device corresponding to the identifier corresponding to the URL in the access request is successful, and save the obtained identifier.

In the RR device of the embodiment of the present invention, the hijacking module is configured to:

It is determined that the number of times the content corresponding to the URL is accessed is greater than or equal to the first preset threshold, and the access request of the user equipment is hijacked.

In the RR device of the present invention, the first sending module is configured to:

In the correspondence between the preset regular expression and the identifier, the identifier corresponding to the regular expression matching the URL in the access request is searched, and the obtained identifier is not found in the pre-saved identifier, and the content is load balanced. The device sends a pre-cached message.

In the RR device of the embodiment of the present invention, the first sending module is further configured to:

It is determined that the cached content exceeds the validity period, or it is determined that the cached content is accessed less than or equal to the preset number of times, and the message indicating that the cached content is deleted is sent to the content load balancing device.

The obtained identifier is found in the pre-saved identifier, and the identifier indicating the redirect is sent to the user equipment.

Referring to FIG. 4, an embodiment of the present invention further provides a content load balancing apparatus, including at least:

In the content load balancing device of the embodiment of the present invention, the second sending module is configured to:

In the correspondence between the preset regular expression and the identifier, the identifier corresponding to the regular expression matching the URL in the pre-cache message is searched, and the pre-cache message is sent to the cache device corresponding to the obtained identifier.

In the content load balancing device of the embodiment of the present invention, the second receiving module is further configured to:

Receiving a message from the RR device indicating deletion of the cached content;

The second sending module is further configured to:

Obtaining an identifier corresponding to the URL in the message indicating that the cached content is deleted, indicating that the deletion is slow The message of the stored content is sent to the cache device corresponding to the obtained identifier.

Receiving an access request from a user device;

The second sending module is further configured to:

Referring to FIG. 5, an embodiment of the present invention further provides a cache device, including at least:

In the cache device of the embodiment of the present invention, the third sending module is configured to:

In the correspondence between the preset regular expression and the identifier, the identifier corresponding to the regular expression matching the URL in the pre-cache message is searched, and the path corresponding to the identifier is calculated, and the content corresponding to the URL downloaded from the server is Cache to the calculated path and send a message that the cache is successful to the RR device.

The cache device in the embodiment of the present invention further includes:

Deleting a module, configured to determine that the cached content exceeds a valid period; or, determining that the total size of the cache or the number of caches is greater than or equal to a second preset threshold, deleting the cached content that exceeds the validity period, or deleting the least accessed number of times Cached content.

In the cache device of the embodiment of the present invention, the third receiving module is further configured to:

Receiving an access request from a user device;

The third sending module is further configured to:

The identifier corresponding to the URL in the access request is obtained, and the path corresponding to the identifier is calculated, and the content in the path is sent to the user equipment.

Referring to FIG. 6, an embodiment of the present invention further provides a system for caching and serving content, including at least:

In the system provided by the embodiment of the present invention, the RR device is further configured to:

Finding the obtained identifier in the pre-stored identifier, and sending an identifier indicating the redirect to the user equipment;

The content load balancing device is also configured to:

Receiving an access request from the user equipment, obtaining an identifier corresponding to the URL in the access request, and sending an identifier indicating the redirection to the user equipment;

The cache device is also configured to:

Receiving an access request from the user equipment, obtaining an identifier corresponding to the URL in the access request, calculating a path corresponding to the identifier, and transmitting the content in the path to the user equipment.

The embodiment further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method provided by any one of the foregoing technical solutions, for example, as shown in FIG. 2 to FIG. 6 . At least one of the methods shown.

The computer storage medium may be a random storage medium RAM, a read only storage medium RAM or a flash memory, etc., and may be a non-transitory storage medium.

It should be noted that the above-mentioned embodiments are only intended to facilitate the understanding of those skilled in the art, and are not intended to limit the scope of the present invention. Any modifications made in accordance with the principles of the present invention should be understood as falling within the scope of the present invention. The scope of protection.

Claims

A method for caching and providing service content, including:

Requesting the routing RR device to hijack the access request of the user equipment;

The RR device obtains the identifier corresponding to the resource locator URL in the access request, finds the obtained identifier in the pre-stored identifier, and sends a pre-cache message to the content load balancing device.

The content load balancing device obtains the identifier corresponding to the URL in the pre-cached message, and sends the pre-cached message to the cache device corresponding to the obtained identifier;

The cache device obtains the identifier corresponding to the URL in the pre-cached message, calculates the path corresponding to the identifier, caches the content corresponding to the URL downloaded from the server, and sends the cached success message to the RR device.

The RR device saves the obtained identification.
The method of claim 1 wherein the method further comprises:

The RR device determines that the number of times the content corresponding to the URL is accessed is greater than or equal to a first preset threshold.
The method according to claim 1 or 2, wherein the identifier that the RR device obtains the URL in the access request comprises:

The RR device searches for an identifier corresponding to the regular expression that matches the URL in the access request in a correspondence between the preset regular expression and the identifier.
The method according to claim 1 or 2, wherein the identifier corresponding to the URL in the pre-cache message obtained by the content load balancing device comprises:

The content load balancing device searches for an identifier corresponding to the regular expression that matches the URL in the pre-cached message in a correspondence between the preset regular expression and the identifier.
The method of claim 1 or 2, wherein the obtaining, by the cache device, the identifier corresponding to the URL in the pre-cache message comprises:

The cache device checks the correspondence between the preset regular expression and the identifier. Find an identifier corresponding to the regular expression that matches the URL in the pre-cached message.
The method according to claim 1 or 2, wherein when the cache device determines that the cached content exceeds a validity period; or determines that the total size of the cache or the number of caches is greater than or equal to a second preset threshold, The method also includes:

The cache device deletes the cached content that exceeds the validity period, or deletes the cached content that is accessed the least.
The method according to claim 1 or 2, wherein when the RR device finds the obtained identifier in the pre-saved identifier, the method further comprises:

The RR device sends an identifier indicating the redirection to the user equipment;

Receiving, by the content load balancing device, an access request from the user equipment, acquiring an identifier corresponding to the URL in the access request, and sending an identifier indicating the redirect to the user equipment;

The cache device corresponding to the obtained identifier receives the access request from the user device, obtains the identifier corresponding to the URL in the access request, calculates a path corresponding to the identifier, and sends the content in the path to the user equipment.
A request routing RR device, wherein at least:

The hijacking module is configured to hijack an access request of the user equipment;

The first sending module is configured to obtain an identifier corresponding to the resource locator URL in the access request, and the obtained identifier is not found in the pre-stored identifier, and the pre-cache message is sent to the content load balancing device.

The first receiving module is configured to receive a message that the cache of the cache device corresponding to the identifier corresponding to the URL in the access request is successful, and save the obtained identifier.
The RR device of claim 8, wherein the hijacking module is configured to:

And determining that the number of times the content corresponding to the URL is accessed is greater than or equal to a first preset threshold, and the access request of the user equipment is hijacked.
The RR device according to claim 8 or 9, wherein said first transmitting module is configured Set to:

In the correspondence between the preset regular expression and the identifier, searching for an identifier corresponding to the regular expression matching the URL in the access request, and finding the identifier obtained in the pre-saved identifier, to the content The load balancing device sends a pre-cache message.
The RR device according to claim 8 or 9, wherein the first sending module is further configured to:

The obtained identifier is found in the pre-saved identifier, and the identifier indicating the redirect is sent to the user equipment.
A content load balancing device includes at least:

a second receiving module, configured to receive a pre-cache message from the request routing RR device;

The second sending module is configured to obtain an identifier corresponding to the URL in the pre-cached message, and send the pre-cached message to the cache device corresponding to the obtained identifier.
The content load balancing device of claim 12, wherein the second sending module is configured to:

In the correspondence between the preset regular expression and the identifier, the identifier corresponding to the regular expression matching the URL in the pre-cached message is searched, and the pre-cached message is sent to the cache device corresponding to the obtained identifier.
The content load balancing device of claim 12, wherein the second receiving module is further configured to:

Receiving an access request from a user device;

The second sending module is further configured to:

Obtaining an identifier corresponding to the URL in the access request, and sending an identifier indicating the redirect to the user equipment.
A cache device, comprising at least:

a third receiving module, configured to receive a pre-cache message from the content load balancing device;

The third sending module is configured to obtain an identifier corresponding to the URL in the pre-cached message, calculate a path corresponding to the identifier, cache the content corresponding to the URL downloaded from the server to the calculated path, and send a message that the cache succeeds to the RR device. .
The cache device according to claim 15, wherein the third sending module is configured to:

In the correspondence between the preset regular expression and the identifier, searching for an identifier corresponding to the regular expression matching the URL in the pre-cached message, calculating a path corresponding to the identifier, and corresponding to the URL downloaded from the server The content is cached to the calculated path and a message that the cache is successful is sent to the RR device.
The cache device according to claim 15, further comprising:

Deleting a module, configured to determine that the cached content exceeds a valid period; or, determining that the total size of the cache or the number of caches is greater than or equal to a second preset threshold, deleting the cached content that exceeds the validity period, or deleting the least accessed number of times Cached content.
The cache device according to claim 15, wherein the third receiving module is further configured to:

Receiving an access request from a user device;

The third sending module is further configured to:

Obtaining an identifier corresponding to the URL in the access request, calculating a path corresponding to the identifier, and sending the content in the path to the user equipment.
A system for caching and serving content, including at least:

The requesting routing RR device is configured to hijack the access request of the user equipment; obtaining the identifier corresponding to the resource locator URL in the access request, not finding the obtained identifier in the pre-saved identifier, and sending the pre-cache message to the content load balancing device; Receiving a message that the cache is successful from the cache device, and saving the obtained identifier;

The content load balancing device is configured to obtain an identifier corresponding to the URL in the pre-cached message, and The pre-cache message is sent to the cache device corresponding to the obtained identifier;

The cache device is configured to obtain an identifier corresponding to the URL in the pre-cached message, calculate a path corresponding to the identifier, cache the content corresponding to the URL downloaded from the server to the calculated path, and send a message that the cache is successful to the RR device.
The system of claim 19 wherein said RR device is further configured to:

Finding the obtained identifier in the pre-stored identifier, and sending an identifier indicating the redirect to the user equipment;

The content load balancing device is further configured to:

Receiving an access request from the user equipment, acquiring an identifier corresponding to the URL in the access request, and sending an identifier indicating the redirect to the user equipment;

The cache device is further configured to:

Receiving an access request from the user equipment, obtaining an identifier corresponding to the URL in the access request, calculating a path corresponding to the identifier, and transmitting the content in the path to the user equipment.
A computer storage medium having stored therein computer executable instructions for performing the caching and providing method of the service content of claims 1 to 7.
A method for caching and providing service content, including:

Hijacking access requests from user devices;

Obtaining an identifier corresponding to the resource locator URL in the access request;

Sending a pre-cache message to the content load balancing device when the obtained identifier is not found in the pre-saved identifier;

The message that the cache of the cache device corresponding to the identifier corresponding to the URL corresponding to the URL in the access request is successfully received is saved, and the obtained identifier is saved.
The method of claim 22, wherein the hijacking an access request of the user equipment comprises:

And determining that the number of times the content corresponding to the URL is accessed is greater than or equal to a first preset threshold, and the access request of the user equipment is hijacked.
The method of claim 22 or 23, wherein the method further comprises:

In a correspondence between the preset regular expression and the identifier, searching for an identifier corresponding to the regular expression matching the URL in the access request;

When the obtained identifier is not found in the pre-stored identifier, the pre-cache message is sent to the content load balancing device, including:

The obtained identifier is not found in the pre-saved identifier, and the pre-cache message is sent to the content load balancing device.
The method of claim 22 or 23, wherein the method further comprises:

The obtained identifier is found in the pre-saved identifier, and the identifier indicating the redirect is sent to the user equipment.
A method for caching and providing service content, including:

Receiving a pre-cache message from the request routing RR device;

The identifier corresponding to the URL in the pre-cached message is obtained, and the pre-cached message is sent to the cache device corresponding to the obtained identifier.
The method of claim 26, wherein the obtaining the identifier corresponding to the URL in the pre-cache message, and sending the pre-cache message to the cache device corresponding to the obtained identifier, comprising: a preset regular expression and an identifier In the corresponding relationship, the identifier corresponding to the regular expression matching the URL in the pre-cache message is searched, and the pre-cache message is sent to the cache device corresponding to the obtained identifier.
The method of claim 26, wherein the method further comprises:

Receiving an access request from a user device;

Obtaining an identifier corresponding to the URL in the access request, and sending an identifier indicating the redirect to the user equipment.
A method for caching and providing service content, including:

Receiving a pre-cache message from the content load balancing device;

The identifier corresponding to the URL in the pre-cached message is obtained, and the path corresponding to the identifier is calculated, and the content corresponding to the URL downloaded from the server is cached to the calculated path, and the message that the cache is successful is sent to the RR device.
The method according to claim 29, wherein the obtaining the identifier corresponding to the URL in the pre-cache message, calculating the path corresponding to the identifier, and buffering the content corresponding to the URL downloaded from the server to the calculated path, and to the RR The device sends a message that the cache is successful, including:

In the correspondence between the preset regular expression and the identifier, searching for an identifier corresponding to the regular expression matching the URL in the pre-cached message, calculating a path corresponding to the identifier, and corresponding to the URL downloaded from the server The content is cached to the calculated path and a message that the cache is successful is sent to the RR device.
The method of claim 29, wherein the method further comprises:

It is determined that the cached content exceeds the validity period; or, the total size of the cache or the number of caches is determined to be greater than or equal to a second preset threshold, the cached content exceeding the validity period is deleted, or the cached content with the least number of times of access is deleted.
The method of claim 29, wherein the method further comprises:

Receiving an access request from a user device;

Obtaining an identifier corresponding to the URL in the access request, calculating a path corresponding to the identifier, and sending the content in the path to the user equipment.