WO2017025052A1

WO2017025052A1 - Resource caching method and device

Info

Publication number: WO2017025052A1
Application number: PCT/CN2016/094627
Authority: WO
Inventors: 郑小娟
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-08-12
Filing date: 2016-08-11
Publication date: 2017-02-16
Also published as: CN106453461A

Abstract

Provided are a resource caching method and device. The method comprises: receiving a first request message, wherein the first request message is used for requesting to access a first predetermined resource; according to the first request message, counting the number of access times for accessing the first predetermined resource; judging whether the number of access times has reached a first predetermined threshold; when a judgement result is yes, notifying a caching sub-system to cache the first predetermined resource, wherein the caching sub-system is used for providing the cached resources. By means of the present invention, the problems of restricted access to a caching sub-system and network congestion existing in the related art are solved, thereby achieving the effects of avoiding restricted access to the caching sub-system and reducing network congestion.

Description

Resource cache method and device

Technical field

The present invention relates to the field of communications, and in particular to a resource caching method and apparatus.

Background technique

The OTT (Over The Top) Cache (Cache) subsystem is deployed in China Mobile's existing Internet Protocol (IP) bearer network for storing hot content or specific content in the Internet. In the related art, in the proxy mode, the request is forwarded to the OTT Cache system by hijacking the access request of the user in the network, and the OTT Cache system is used as a proxy server to provide the user with the required Internet access data, thereby avoiding the direct use of the user. The data is downloaded from the Internet source station, thereby effectively avoiding the congestion problem of the network link, reducing the delay of the Chinese mobile user accessing the Internet content, improving the user's data service experience, and also reducing the settlement fee generated by the Internet traffic.

However, in practical applications, not all Uniform Resource Locators (URLs) are suitable for 302 redirection processing. When proxy mode is enabled, request routing (RR) is used for users. When all the requests provide the 302 redirect service, if the resource requested by the user does not include the header field or no jump information, the OTT Cache cannot cache the resource, and cannot be used as a proxy server to provide services for the user.

When proxy mode is enabled, if the resource OTT Cache requested by the user can be cached, it is not a hotspot resource (for example, a resource is only accessed once or twice). At this time, if the RR performs redirection processing, the OTT Cache frequently pulls down the content to the source station, which may be considered as a malicious attack by the source station, and the cache subsystem is restricted from accessing.

When the proxy mode is not enabled, the RR does not provide the 302 redirect service for all the requests. If the resource requested by the user belongs to the hotspot resource (the same resource is accessed multiple times), the user continuously requests the same resource from the source station, which occupies a large amount of bandwidth. The network is congested and the user experience is poor. It can be seen that the problem that the cache subsystem is restricted from accessing and network congestion may be caused in the related art, and an effective solution has not been proposed yet.

Summary of the invention

The present invention provides a resource caching method and apparatus to at least solve the problem that the cache subsystem is restricted in access and network congestion existing in the related art.

According to an aspect of the present invention, a resource caching method is provided, comprising: receiving a first request message, wherein the first request message is used to request access to a first predetermined resource; and the access station is counted according to the first request message Determining the number of accesses of the first predetermined resource; determining whether the number of accesses reaches a first predetermined threshold; and if the determination result is yes, notifying the cache subsystem to cache the first predetermined resource, wherein the cache subsystem The resource used to provide the cache.

Optionally, after the buffering subsystem is configured to cache the first predetermined resource, the method further includes: determining whether the cache subsystem successfully caches the first predetermined resource; and if the determination result is yes, using the location Cache subsystem provides The first predetermined resource.

Optionally, after determining whether the cache subsystem successfully caches the first predetermined resource, the method further includes: if the determination result is yes, recording the cached first predetermined resource in a cache content distribution table The cache content distribution table records the resources that the cache subsystem has cached, and the cache content distribution table is configured to redirect the request message for accessing the resources recorded in the cache content distribution table to The cache subsystem provides the resources recorded in the cache content distribution table by using the cache subsystem.

Optionally, the method further includes: receiving a second request message, where the second request message is used to request access to the second predetermined resource; and determining whether the second predetermined resource is cached in the cache subsystem; If the determination result is yes, the second request message is redirected to the cache subsystem, wherein the second request message is used to instruct the cache subsystem to provide the second predetermined resource.

Optionally, determining whether the number of accesses reaches the first predetermined threshold includes: acquiring a heat statistics table, wherein the heat statistics table is used to record the time and the number of times the resource is accessed; and determining the number of accesses according to the heat statistics table. Whether the first predetermined threshold is reached.

Optionally, the method further includes: determining, according to the heat statistics table, the expired resource, wherein the expired resource is a resource whose difference between the current time and the latest time of accessing the expired resource exceeds a second predetermined threshold; The time and number of times of accessing the expired resource recorded in the heat statistics table are deleted.

According to another aspect of the present invention, a resource cache apparatus is provided, including: a first receiving module, configured to receive a first request message, wherein the first request message is used to request access to a first predetermined resource; a statistics module The first determining unit is configured to determine whether the number of accesses reaches the first predetermined threshold according to the first request message, and the notification module is configured to be in the first When the judgment result of the determination module is YES, the notification cache subsystem caches the first predetermined resource, wherein the cache subsystem is used to provide the cached resource.

Optionally, the device further includes: a second determining module, configured to determine whether the cache subsystem successfully caches the first predetermined resource; and a providing module, configured to be determined by the second determining module The first predetermined resource is provided by the cache subsystem.

Optionally, the device further includes: a recording module, configured to: when the determination result of the second determining module is yes, record the cached first predetermined resource in a cache content distribution table, where The cache content distribution table records the resource that the cache subsystem has cached, and the cache content distribution table is configured to redirect a request message for accessing the resource recorded in the cache content distribution table to the cache a subsystem that utilizes the cache subsystem to provide resources recorded in the cache content distribution table.

Optionally, the device further includes: a second receiving module, configured to receive a second request message, where the second request message is used to request access to the second predetermined resource; and the third determining module is configured to determine the Whether the second predetermined resource is cached in the cache subsystem; and the redirecting module is configured to redirect the second request message to the cacher if the determination result of the third determining module is yes a system, wherein the second request message is used to indicate the cache The subsystem provides the second predetermined resource.

Optionally, the first determining module includes: an obtaining unit, configured to obtain a heat statistics table, wherein the heat statistics table is used to record the time and the number of times the resource is accessed; and the determining unit is configured to be configured according to the heat statistics table. Determining whether the number of accesses reaches the first predetermined threshold.

Optionally, the apparatus further includes: a determining module, configured to determine an expired resource according to the heat statistics table, wherein the expired resource is a difference between a current time and a latest time of accessing the expired resource exceeds a second a resource of a predetermined threshold; a deletion module configured to delete a time and a number of times of accessing the expired resource recorded in the heat statistics table.

The first request message is received by the present invention, wherein the first request message is used to request access to the first predetermined resource; the number of accesses to the first predetermined resource is counted according to the first request message; Whether the number of accesses reaches a first predetermined threshold; if the result of the determination is YES, the notification cache subsystem caches the first predetermined resource, wherein the cache subsystem is configured to provide the cached resource. The problem that the cache subsystem is restricted access and network congestion existing in the related art is solved, thereby achieving the effect of avoiding the cache subsystem being restricted by access and reducing network congestion.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flowchart of a resource caching method according to an embodiment of the present invention;

2 is a structural block diagram of a resource cache apparatus according to an embodiment of the present invention;

3 is a block diagram 1 of a preferred structure of a resource cache device according to an embodiment of the present invention;

4 is a block diagram 2 of a preferred structure of a resource cache device according to an embodiment of the present invention;

FIG. 5 is a block diagram 3 of a preferred structure of a resource cache device according to an embodiment of the present invention; FIG.

FIG. 6 is a structural block diagram of a first determining module 26 in a resource cache device according to an embodiment of the present invention;

FIG. 7 is a block diagram 4 of a preferred structure of a resource cache device according to an embodiment of the present invention; FIG.

FIG. 8 is a flowchart of user request scheduling and heat statistics according to an embodiment of the present invention; FIG.

9 is a flowchart of threshold statistics and content pull-down according to an embodiment of the present invention;

FIG. 10 is a flowchart of content cache result reporting according to an embodiment of the present invention; FIG.

11 is a simplified networking diagram of a content distribution network system according to an embodiment of the present invention;

12 is a diagram of a non-proxy mode processing mechanism in accordance with an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

In this embodiment, a resource caching method is provided. FIG. 1 is a flowchart of a resource caching method according to an embodiment of the present invention. As shown in FIG. 1 , the process includes the following steps:

Step S102, receiving a first request message, where the first request message is used to request access to the first predetermined resource;

Step S104, counting the number of accesses to access the first predetermined resource according to the first request message;

Step S106, determining whether the number of accesses reaches a first predetermined threshold;

Step S108: When the determination result is yes, the notification cache subsystem caches the first predetermined resource, where the cache subsystem is used to provide the cached resource.

Through the above steps, when the cache subsystem is notified of the cache resource, only the cache subsystem caches the resources whose cache access times exceed the first predetermined threshold, thereby achieving the purpose of the selected cache resource, that is, the first reservation is reached for the number of accesses. The resource of the threshold (that is, the resource is hot enough and the number of users accessed is relatively large) is cached, thereby avoiding the problem that the cache subsystem is restricted from accessing. When the user accesses the resource again, the resource can be directly provided by the cache subsystem. Thereby reducing network congestion. The problem that the cache subsystem is restricted access and network congestion existing in the related art is solved, thereby achieving the effect of avoiding the cache subsystem being restricted by access and reducing network congestion.

In an optional embodiment, after the buffering subsystem is configured to buffer the first predetermined resource, the method further includes: determining whether the cache subsystem successfully caches the first predetermined resource; and if the determination result is yes, using The cache subsystem provides the first predetermined resource described above. Moreover, whether the cache subsystem supports the caching of the resources can be determined by whether the cache subsystem successfully caches resources (eg, the first predetermined resource described above).

In an optional embodiment, after determining whether the cache subsystem successfully caches the first predetermined resource, the method further includes: when the determination result is yes, recording the cached first predetermined resource in the cache content distribution table. The cache content distribution table records the resource that has been cached by the cache subsystem, and the cache content distribution table is used to redirect the request message for accessing the resource recorded in the cache content distribution table to the cache subsystem. The cache subsystem is used to provide resources recorded in the cache content distribution table. That is to say, the resources recorded in the cache content distribution table are all resources successfully cached by the cache subsystem, so that when the user needs to access the resources recorded in the cache content distribution table, the cache subsystem can be directly used to provide resources. So as to effectively reduce the pressure on the network and reduce network congestion. The request message in this embodiment may be a first request message, a second request message, or other request message.

In an optional embodiment, when the first request message is received in step S102, the second request message may be received at the same time, wherein the second request message is used to request access to the second predetermined resource; The cache has a second predetermined resource; if the result of the determination is yes, the second request message is redirected to the cache subsystem, wherein the second request message is used to instruct the cache subsystem to provide the second predetermined resource. Thereby the second reservation is already cached in the cache subsystem When the resource is used, the second request message can be directly redirected to the cache subsystem, thereby improving the efficiency of obtaining the second predetermined resource. In this alternative embodiment, the first predetermined resource and the second predetermined resource may be the same resource or different resources. And, the timing of receiving the second request message may occur at any time, such as before or after step S104, or before or after step S108.

In an optional embodiment, determining whether the number of accesses reaches the first predetermined threshold includes: acquiring a heat statistics table, wherein the heat statistics table is used to record the time and the number of times the resource is accessed; and determining the number of accesses according to the heat statistics table. Whether the above first predetermined threshold is reached. The heat statistics table is used to record the number of accesses and access times of the resources that the user has visited, and each time a resource is accessed, the number of accesses to the corresponding resources is increased by one, and the corresponding records are also corresponding to The access time of the visit, so as to clearly determine the access of resources.

In an optional embodiment, the expired resource may also be determined according to the heat statistics table, where the expired resource is a resource whose difference between the current time and the latest time of accessing the expired resource exceeds a second predetermined threshold; deleting the heat The time and number of times recorded in the statistics table to access the above-mentioned expired resources. The second predetermined threshold may be set to 10 days, or 5 days, or other values. The foregoing expired resource is a resource with reduced access, when a resource is not accessed for longer than the second predetermined threshold. Then, it can be determined that the access heat of the resource is low enough, and the record of the expired resource is deleted in the heat statistics table, thereby ensuring that the heat statistics table can count more access times and times of resources.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

In the embodiment, a resource buffering device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again. As used hereinafter, the term "module" may implement software of a predetermined function or a combination of software and hardware. Although the apparatus described in the following embodiments is preferably implemented in software, implementation of a combination of software and hardware is also possible and contemplated.

FIG. 2 is a structural block diagram of a resource cache apparatus according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes a first receiving module 22, a statistic module 24, a first judging module 26, and a notification module 28. Be explained.

The first receiving module 22 is configured to receive a first request message, where the first request message is used to request access to the first predetermined resource, and the statistics module 24 is connected to the first receiving module 22, and configured to be according to the first request. The number of accesses of the first predetermined resource is accessed by the message statistics. The first determining module 26 is connected to the statistics module 24, and is configured to determine whether the number of accesses reaches a first predetermined threshold. The notification module 28 is connected to the first determining module 26. And being configured to notify the cache subsystem to cache the first predetermined resource when the determination result of the first determining module 26 is YES, wherein the cache subsystem is configured to provide the cached resource.

3 is a block diagram of a preferred structure of a resource cache device according to an embodiment of the present invention. As shown in FIG. 3, the device includes a second judging module 32 and a providing module 34, in addition to all the modules shown in FIG. The device will be described.

The second determining module 32 is connected to the notification module 28, and is configured to determine whether the cache subsystem successfully caches the first predetermined resource. The providing module 34 is connected to the second determining module 32, and is configured to be in the second determining module. In the case where the judgment result of 32 is YES, the above-mentioned first predetermined resource is provided by the above-described cache subsystem.

4 is a block diagram of a preferred structure of a resource cache device according to an embodiment of the present invention. As shown in FIG. 4, the device includes a recording module 42 in addition to all the modules shown in FIG. .

The recording module 42 is connected to the second judging module 32, and configured to record the cached first predetermined resource in the cache content distribution table if the judgment result of the second judging module 32 is YES, wherein the The cache content distribution table records the resources that the cache subsystem has cached, and the cache content distribution table is used to redirect the request message for accessing the resources recorded in the cache content distribution table to the cache subsystem, and utilize the cache subsystem. Provides resources recorded in the cached content distribution table.

5 is a block diagram 3 of a preferred structure of a resource cache device according to an embodiment of the present invention. As shown in FIG. 5, the device includes a second receiving module 52 and a third determining module 54 in addition to all the modules shown in FIG. And the redirection module, the second receiving module 52 can be connected to the first receiving module 22, the statistic module 24, the first judging module 26 or the notification module 28, and the second receiving module 52 is connected to the first receiving module 22 as an example. The device will be described.

The second receiving module 52 is connected to the first receiving module 22 and configured to receive the second request message, where the second request message is used to request access to the second predetermined resource; the third determining module, the block 54 is connected to the second receiving The module 52 is configured to determine whether the second predetermined resource is cached in the cache subsystem. The redirecting module 56 is connected to the third determining module 54 and is configured to be in the case that the determination result of the third determining module 54 is YES. The second request message is redirected to the cache subsystem, wherein the second request message is used to instruct the cache subsystem to provide the second predetermined resource.

FIG. 6 is a structural block diagram of a first determining module 26 in a resource cache device according to an embodiment of the present invention. As shown in FIG. 6, the first determining module 26 includes an obtaining unit 62 and a determining unit 64. Module 26 is described.

The obtaining unit 62 is configured to obtain a heat statistics table, wherein the heat statistics table is used to record the time and the number of times the resource is accessed; the determining unit 64 is connected to the obtaining unit 52, and is configured to determine whether the number of accesses is reached according to the heat statistics table. The first predetermined threshold described above.

FIG. 7 is a block diagram of a preferred structure of a resource cache device according to an embodiment of the present invention. As shown in FIG. 7, the device includes a determination module 72 and a deletion module 74, in addition to all the modules shown in FIG. The device is described.

The determining module 72 is connected to the first determining module 26, and is configured to determine the expired resource according to the heat statistics table, wherein the expired resource is that the difference between the current time and the latest time of accessing the expired resource exceeds a second predetermined threshold. The resource deletion module 74 is connected to the determining module 72, and is configured to delete the time and the number of times the access to the expired resource recorded in the heat statistics table. The connection relationship between the above-mentioned determination module 72 and each module shown in FIG. 6 can be various. The example shown in FIG. 7 is only an example. For example, the determination module 72 can also be connected to the notification module. After 28.

The main body of execution of each of the foregoing methods may be an RR, and each of the foregoing devices may be applied to the RR.

The embodiments of the present invention are described below in conjunction with RR:

In order to solve the above problems in the related art, the embodiment of the present invention provides a non-proxy mode Hypertext Transfer Protocol (HTTP) request scheduling method, according to whether the cache subsystem can request the resources. A cache service is provided to determine whether to perform 302 redirect processing on the HTTP request and when the cache subsystem performs content caching. The method includes:

1. For content that cannot be cached by the cache subsystem, the RR does not perform the 302 redirection process, and the source station directly provides services to the user, so as to avoid the problem that the cache subsystem cannot provide the service and the user experience is poor.

2. For the content that the cache subsystem can cache, when the content requested by the user does not belong to the hotspot resource, the RR does not redirect the request, but only performs the heat statistics, and directly provides the service to the user by the source station to avoid frequent access by the cache subsystem. The source station may result in restricted access.

3. When the content requested by the user belongs to the hotspot resource, and the number of accesses reaches the access heat threshold, the RR notifies the OTT Cache of the drop-down content. When the user requests the same resource, the RR forwards the request to the OTT Cache, and the cache subsystem Providing services directly, avoiding network congestion caused by direct large-scale access to the source station, saving bandwidth and improving user experience, and improving the cache hit ratio of OTT Cache.

The implementation of the solution in the embodiment of the present invention may depend on the design of two tables: a url heat statistics table (same as the above heat statistics table) and a cache content distribution table. The url heat statistics table is used to count the url access heat. The cache content distribution table is used to record the resources that the cache subsystem can provide services for users.

FIG. 8 is a flow chart of user request scheduling and heat statistics according to an embodiment of the present invention. As shown in FIG. 8, the process includes the following steps:

Step S802, the user initiates an HTTP request.

Step S804, according to the black and white list, IP segment and other rules, determine whether the url (ie, the above HTTP request) needs to be hijacked, when the determination result is necessary, go to step S806, otherwise, go to step S810;

Step S806, when it is determined that the HTTP request of the user needs to be hijacked by the RR, the RR records the current request in the heat statistics table according to the user access url (steps S812-S814), and determines whether the content exists in the cache content distribution table. If yes, go to step S808, otherwise, go to step S810;

Step S808, responding to the user request, redirecting to the OTT Cache, and providing the service by using the cache subsystem;

Step S810, ignoring the current request, and allowing the user to directly download the foregoing resource from the source station;

Step S812, determining whether there is an access record of the url in the heat statistics table, if the result of the determination is non-existent, go to step S814, otherwise, go to step S816;

In step S814, the heat statistics table adds a record, the number of accesses is recorded as 1, and the request time is recorded; the recorded statistics items include: a.key: the complete url requested by the user uses the md5 algorithm to calculate the 32-bit encrypted string as the key.

b. Service node id: The id number of the service node that the user has scheduled this time.

c. Number of visits: Each time a user visits, the count is incremented by 1.

d. Last access time: Record the time of the last user visit, in milliseconds.

e. The hotspot threshold (same first threshold as described above): the threshold is obtained, and the url of the user is matched from the blacklist list of the HTTP domain name to the corresponding domain name record, and the hotspot threshold of the url is obtained from the recorded entry. . For different websites, the system sets different thresholds and sends them to the RR through the HTTP domain name blacklist and whitelist interface. When the number of accesses reaches this threshold, the RR notifies the OTT Cache to cache. After the content is pulled down, the OTT Cache notifies the RR to update the content. After receiving the notification, the RR updates the memory data and saves it in the content distribution table. The hotspot threshold statistics and content pull-down process are as shown in Figure 9, and the content reporting process is attached. Figure 10 shows.

Step S816, if there is a record corresponding to the key of the url in the heat meter, the number of accesses of the record is increased by 1, and the last access time is changed to the current time.

The md5 value can be calculated as the record key according to the url requested by the user. Through the content distribution table, it is checked whether the content corresponding to the key has been cached on this node. If the content exists, the user request is redirected to the cache subsystem in response to the user request. If it does not exist, the user request is ignored and the user is returned directly to the source.

FIG. 9 is a flowchart of threshold statistics and content pull-down according to an embodiment of the present invention. As shown in FIG. 9, the process includes the following steps:

Step S902, the RR background process, periodically scans the heat statistics table, and processes each record in turn;

Step S904, taking out the next record;

In step S906, it is determined whether the record has expired (the current time minus whether the last access time of the url is greater than or equal to the expired time). If the result of the determination is yes, it is determined that the url is overdue, and the process goes to step S908; otherwise, the process goes to step S910;

Step S908, deleting the url related record;

Step S910, determining whether the number of accesses is greater than or equal to the hotspot threshold, if the determination result is yes, go to step S912, otherwise, go to step S916;

Step S912, according to the key value of the url and the node id and other information to determine whether there is the url record in the cache content table, if the determination result is yes, then go to step S916, otherwise, go to step S914;

Step S914, notifying the OTT Cache to download the content corresponding to the url;

Step S916, indicating that the content is cached, and does not need to notify the OTT Cache, and the hot record processing is completed.

Step S918, it is determined whether there are still unprocessed records, if the determination result is yes, go to step S904, otherwise, go to step S920;

Step S920, waiting for an access request of the user.

As can be seen from the above process, the RR can find the record that reaches the hotspot threshold, notify the cache subsystem to perform content caching, and clean up the url records that have not been accessed again for a long time. RR needs to support different website or file suffixes. Different thresholds, such as www.sohu.com or sina.com, can be set separately for different cache threshold policies. When the RR receives a user's HTTP download request, the RR finds the corresponding matching rule record in the table according to the matching rule, and then finds a heat threshold for the current request url, and saves it to the content heat statistics table. When the number of times the user requests the same resource reaches the website cache popularity threshold, the cache subsystem issues a request drop-down to the source station. After the content is successfully cached, if the user requests the same resource again during the validity period, the RR determines that the cache subsystem can provide the service by querying the cache content distribution table, and forwards the request to the cache subsystem, which is directly This user provides content services.

FIG. 10 is a flowchart of content cache result reporting according to an embodiment of the present invention. As shown in FIG. 10, the process includes the following steps:

In step S1002, when the RR main program starts, the content distribution table is first loaded from the database (disk), and the content distribution data is saved in the memory cache for use by the scheduling process. (corresponding to steps S1-S3 in Fig. 10)

In step S1004, when the cache subsystem has content update, the RR is notified to perform content update. (corresponding to step S4 in Fig. 10)

In step S1006, the RR updates related records in the memory cache, adding/deleting. (corresponding to step S5 in Fig. 10)

In step S1008, the RR persists the record to the disk. (corresponding to step S6 in Fig. 10)

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

FIG. 11 is a simplified networking diagram of a Content Delivery Network (CDN) system according to an embodiment of the present invention. The entire system mainly includes a scheduling subsystem and a cache subsystem. The RR scheduling subsystem hijacks and redirects the user's HTTP request. The cache subsystem is composed of SLB7 and OTT Cache. When the RR redirects the user's HTTP request to the cache subsystem, the cache subsystem provides services for the user.

12 is a diagram of a non-proxy mode processing mechanism according to an embodiment of the present invention. The FIG. 12 depicts that after the RR is hijacked to the user's HTTP download request, the cache subsystem misses and reaches a heat threshold for content pull-down (corresponding to FIG. 12). The process of reaching the threshold proxy download) and the cache hit. As shown in FIG. 12, the process includes the following steps:

The processing flow of the cache subsystem miss includes:

Step S1202: The user sends an HTTP file download request.

Step S1204, the RR hijacks the download request.

Step S1206, determining that the file is not cached in the cache subsystem (corresponding to the foregoing resource), and ignoring the HTTP file download request of the user;

In step S1208, the source station provides a file download service for the user.

The content pulldown process that reaches the heat threshold includes:

Step S1210, the number of accesses in the heat statistics table is +1;

Step S1212: The hotspot threshold is reached, and the OTT Cache is notified to download.

In step S1214, the OTT Cache downloads the file successfully.

The processing flow of cache hits includes:

Step S1216, the user sends an HTTP file download request.

Step S1218, the RR hijacks the above download request;

Step S1220, determining that the foregoing file has been cached in the cache subsystem, and notifying the user to redirect to the cache subsystem;

Step S1222, redirecting the HTTP file download request of the user to the OTT Cache;

In step S1224, the OTT Cache provides a file download service for the user.

In the embodiment of the present invention, a non-proxy mode HTTP request scheduling method is implemented. The scheduling subsystem determines when the cache subsystem pulls down the content through the maintenance of the heat statistics table, records the content cache condition through the cache content distribution table, and determines the cache subsystem. Can you provide services to users? The scheduling subsystem determines whether to perform 302 redirect processing on the HTTP request according to whether the cache subsystem can provide a cache service to the requested resource.

It should be noted that each of the above modules may be implemented by software or a combination of software and hardware. For the latter, the foregoing may be implemented by, but not limited to, the above modules are all located in the same processor; or, the above modules Located in multiple processors.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S11. The first request message is received, where the first request message is used to request access to the first predetermined resource.

S12. Count, according to the foregoing first request message, the number of accesses to access the first predetermined resource.

S13. Determine whether the number of accesses reaches a first predetermined threshold.

S14. When the determination result is yes, notify the cache subsystem to cache the first predetermined resource, where the cache subsystem is configured to provide the cached resource.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store program code, such as a hard disk, a disk, or an optical disk.

Optionally, in the embodiment, the processor performs the above steps S11-S14 according to the stored program code in the storage medium.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. On, Alternatively, they may be implemented by program code executable by a computing device such that they may be stored in a storage device by a computing device and, in some cases, may be executed in a different order than herein. The steps shown or described are either made separately into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

As described above, the resource cache method and apparatus provided by the embodiments of the present invention have the following beneficial effects: the problem that the cache subsystem is restricted from accessing and network congestion exists in the related art, thereby avoiding the cache subsystem being accessed. Limit and reduce the effects of network congestion.

Claims

A resource caching method includes:

Receiving a first request message, where the first request message is used to request access to a first predetermined resource;

And counting, according to the first request message, a number of accesses to access the first predetermined resource;

Determining whether the number of accesses reaches a first predetermined threshold;

When the determination result is yes, the notification cache subsystem caches the first predetermined resource, wherein the cache subsystem is used to provide the cached resource.
The method according to claim 1, wherein after notifying the cache subsystem to cache the first predetermined resource, the method further comprises:

Determining whether the cache subsystem successfully caches the first predetermined resource;

In the case where the determination result is yes, the first predetermined resource is provided by the cache subsystem.
The method of claim 2, after determining whether the cache subsystem successfully caches the first predetermined resource, further comprising:

If the result of the determination is yes, the cached first predetermined resource is recorded in the cache content distribution table, wherein the cache content distribution table records the resource that the cache subsystem has cached, and the cache The content distribution table is configured to redirect a request message for accessing the resource recorded in the cache content distribution table to the cache subsystem, and use the cache subsystem to provide the resource recorded in the cache content distribution table.
The method of claim 1 further comprising:

Receiving a second request message, where the second request message is used to request access to a second predetermined resource;

Determining whether the second predetermined resource is cached in the cache subsystem;

If the determination result is yes, the second request message is redirected to the cache subsystem, wherein the second request message is used to instruct the cache subsystem to provide the second predetermined resource.
The method of claim 1, wherein determining whether the number of accesses reaches a first predetermined threshold comprises:

Obtaining a heat statistics table, wherein the heat statistics table is used to record the time and number of times the resource is accessed;

Determining, according to the heat statistics table, whether the number of accesses reaches the first predetermined threshold.
The method of claim 5, further comprising:

Determining the expired resource according to the heat statistics table, wherein the expired resource is a resource whose difference between the current time and the latest time of accessing the expired resource exceeds a second predetermined threshold;

The time and number of times of accessing the expired resource recorded in the heat statistics table are deleted.
A resource cache device includes:

The first receiving module is configured to receive the first request message, where the first request message is used to request access to the first predetermined resource;

a statistics module, configured to count, according to the first request message, a number of accesses to access the first predetermined resource;

The first determining module is configured to determine whether the number of accesses reaches a first predetermined threshold;

The notification module is configured to notify the cache subsystem to cache the first predetermined resource when the determination result of the first determining module is YES, wherein the cache subsystem is configured to provide the cached resource.
The apparatus according to claim 7, further comprising:

a second determining module, configured to determine whether the cache subsystem successfully caches the first predetermined resource;

And providing a module, configured to provide the first predetermined resource by using the cache subsystem if the determination result of the second determining module is yes.
The apparatus of claim 8 further comprising:

a recording module, configured to record, in a case where the determination result of the second determining module is YES, the cached first predetermined resource in a cache content distribution table, wherein the cache content distribution table records a resource that has been cached by a cache subsystem, the cache content distribution table for redirecting a request message for accessing a resource recorded in the cache content distribution table to the cache subsystem, provided by the cache subsystem The resource recorded in the cache content distribution table.
The apparatus according to claim 7, further comprising:

a second receiving module, configured to receive a second request message, where the second request message is used to request access to a second predetermined resource;

a third determining module, configured to determine whether the second predetermined resource is cached in the cache subsystem;

a redirecting module, configured to redirect the second request message to the cache subsystem if the determination result of the third determining module is yes, wherein the second request message is used to indicate The cache subsystem provides the second predetermined resource.
The apparatus of claim 7, wherein the first determining module comprises:

An obtaining unit, configured to obtain a heat statistics table, wherein the heat statistics table is used to record the time and the number of times the resource is accessed;

The determining unit is configured to determine, according to the heat statistics table, whether the number of accesses reaches the first predetermined threshold.
The device according to claim 11, further comprising:

a determining module, configured to determine an expired resource according to the heat statistics table, wherein the expired resource is a resource whose difference between the current time and the latest time of accessing the expired resource exceeds a second predetermined threshold;

And deleting a module, configured to delete the time and the number of times the access to the expired resource recorded in the heat statistics table is accessed.