WO2017012475A1 - Procédé et dispositif d'acquisition de données - Google Patents

Procédé et dispositif d'acquisition de données Download PDF

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Publication number
WO2017012475A1
WO2017012475A1 PCT/CN2016/089307 CN2016089307W WO2017012475A1 WO 2017012475 A1 WO2017012475 A1 WO 2017012475A1 CN 2016089307 W CN2016089307 W CN 2016089307W WO 2017012475 A1 WO2017012475 A1 WO 2017012475A1
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WIPO (PCT)
Prior art keywords
data
acquisition request
routing device
data acquisition
cache server
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PCT/CN2016/089307
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English (en)
Chinese (zh)
Inventor
王晨纯
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阿里巴巴集团控股有限公司
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Publication of WO2017012475A1 publication Critical patent/WO2017012475A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a data acquiring method and device.
  • the traditional CDN domain name can only be returned to a storage center, and the content returned by the source station is cached on the CDN node and transparently transmitted to the client. This also means that the domain name of a CDN can only correspond to the file of a single storage center. Storage facility.
  • CDN domain name can only be returned to one storage center, which results in multiple domain names when data resources are distributed in multiple storage centers, and cannot be merged into one domain name to access, resulting in high user cost. , affecting the user's experience.
  • a domain name can only be returned to a storage center, which causes the cost of using multiple storage centers to be too high, and affects the user experience.
  • the present application proposes a data acquisition method, including:
  • the routing device receives the data acquisition request from the source of the CDN cache server,
  • the routing device searches for data corresponding to the data acquisition request based on the data acquisition request;
  • the routing device generates a feedback message based on the search result
  • the routing device sends the feedback message to the CDN cache server to cause the CDN cache server to obtain the data based on the feedback message.
  • the method before the routing device receives the data acquisition request of the CDN cache server, the method further includes:
  • the data acquisition request includes a URL of the data, where the data is stored in a storage center.
  • the routing device searches for data corresponding to the data acquisition request based on the data acquisition request, and specifically includes:
  • the routing device performs a data search based on the URI to determine a storage center where the data is located;
  • the routing device extracts a domain name of a storage center where the data is located.
  • a data index table is pre-stored in the routing device, where the index table stores a correspondence between each storage center and data stored in each storage center.
  • the routing device performs a data search based on the URI to determine a storage center where the data is located, and specifically includes:
  • the routing device performs a lookup in the index table based on the URI to determine a storage center where the data is located.
  • the routing device stores, in advance, a correspondence between a domain name of each storage center and the data acquisition request.
  • the routing device performs a data search based on the URI to determine a storage center where the data is located, and specifically includes:
  • the routing device looks up the data in various storage centers based on the URI to determine a storage center in which the data resides.
  • the routing device generates a feedback message based on the search result, which specifically includes:
  • the routing device generates a second URL based on the extracted domain name and the URI as a feedback message.
  • the application also proposes a data acquisition method, including:
  • the CDN cache server returns the received data acquisition request to the routing device
  • the CDN cache server receives a feedback message that is sent by the routing device based on the data acquisition request, where the feedback message includes an address where the data corresponding to the data acquisition request is located;
  • the CDN cache server acquires data corresponding to the data acquisition request based on the feedback message.
  • the feedback message includes a URL of the data, where the data is stored in a storage center;
  • the acquiring, by the CDN cache server, the data corresponding to the data acquisition request, based on the feedback message specifically includes:
  • the CDN cache server acquires the data in the determined storage center according to the URI.
  • the method further includes:
  • the CDN cache server caches the data and sends the data to a user terminal corresponding to the data acquisition request.
  • the application also proposes a routing device, including:
  • a receiving module configured to receive a data acquisition request from a source of the CDN cache server
  • a searching module configured to search for data corresponding to the data acquisition request based on the data acquisition request
  • a generating module configured to generate a feedback message based on the search result
  • a sending module configured to send the feedback message to the CDN cache server, so that the CDN cache server acquires the data based on the feedback message.
  • it also includes:
  • a modifying module configured to modify a return source address of the CDN cache server to an address of the routing device, so that when the CDN cache server returns to the source, the routing device receives a data acquisition request of the CDN cache server back to the source.
  • the data acquisition request includes a URL of the data, where the data is stored in a storage center.
  • the searching module is specifically configured to:
  • the routing device performs a data search based on the URI to determine a storage center where the data is located;
  • the routing device extracts a domain name of a storage center where the data is located.
  • a data index table is pre-stored in the routing device, where the index table stores a correspondence between each storage center and data stored in each storage center.
  • the searching module performs a data search based on the URI to determine a storage center where the data is located, and specifically includes:
  • a lookup is performed in the index table based on the URI to determine a storage center where the data is located.
  • the routing device stores, in advance, a correspondence between a domain name of each storage center and the data acquisition request.
  • the searching module performs a data search based on the URI to determine a storage center where the data is located, and specifically includes:
  • the data is looked up in various storage centers based on the URI to determine a storage center in which the data resides.
  • the generating module is specifically configured to:
  • a second URL is generated as a feedback message based on the extracted domain name and the URI.
  • the application also proposes a CDN cache server, comprising:
  • a source module configured to return the received data acquisition request to the routing device
  • a receiving module configured to receive a feedback message that is sent by the routing device based on the data acquisition request, where the feedback message includes an address where the data corresponding to the data acquisition request is located;
  • an obtaining module configured to acquire data corresponding to the data acquisition request based on the feedback message.
  • the feedback message includes a URL of the data, where the data is stored in a storage center;
  • the obtaining module is specifically configured to:
  • the data is obtained in the determined storage center according to the URI.
  • the CDN cache server further includes:
  • a sending module configured to cache the data, and send the data to a user terminal corresponding to the data obtaining request.
  • the application also discloses a data acquisition system, including:
  • a routing device configured to receive a data acquisition request from a source of the CDN cache server, search for data corresponding to the data acquisition request based on the data acquisition request, generate a feedback message based on the search result, and send the feedback message to the a CDN cache server, such that the CDN cache server acquires the data based on the feedback message;
  • a CDN cache server configured to: return a received data acquisition request to the routing device; and receive, by the routing device, a feedback message that is based on the data acquisition request, where the feedback message includes data corresponding to the data acquisition request. And the address corresponding to the data acquisition request is obtained based on the feedback message.
  • the data acquisition request of the CDN cache server is received by the device, and the data corresponding to the data acquisition request is searched based on the data acquisition request; and the feedback message is generated based on the search result.
  • a domain name can be returned to multiple storage centers, which reduces the cost of use and improves the user experience.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a data acquisition method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart diagram of a data acquisition method according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a routing device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a routing device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a CDN cache server according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a data acquisition system according to an embodiment of the present application.
  • the embodiment of the present application discloses a data acquisition method, which is applied to a system as shown in FIG. 1 including multiple storage centers, in which the CDN cache server will data from the user terminal.
  • the request source is sent back to the routing device, and after the routing device finds the data, the feedback message generated by the storage center based on the data is fed back to the CDN cache server, so that the CDN cache server caches the data and returns the data to the user terminal, thereby reducing the user and the user.
  • the workload of the CDN cache server improves the user experience.
  • the method is shown in Figure 2 and includes the following steps:
  • Step 201 The routing device receives a data acquisition request from a source of the CDN cache server.
  • the method further includes:
  • the source address of the CDN cache server is modified to the address of the routing device, so that when the CDN cache server returns to the source, the routing device receives the data acquisition request from the source of the CDN cache server.
  • the terminal where the user is located sends a data acquisition request to the CDN cache server
  • the data corresponding to the data acquisition request is not in the cache of the CDN cache server
  • the corresponding data is obtained by the other device based on the data acquisition request, by default.
  • the CDN cache server has a preset source address, that is, a preset source address.
  • the CDN cache server receives the data acquisition request and does not cache the required data, it will obtain the source back to the source station based on the data. Obtain the data in the medium.
  • the source address of the CDN cache server is modified in this application.
  • the routing device may be modified by the routing device, or may be modified by any other device or manual setting, and modified to be the address of the routing device, so that when the source needs to be returned, the CDN cache server will data.
  • the obtaining request is sent to the routing device, and then the routing device searches for the corresponding data based on the data obtaining request; for example, the original source address of the CDN cache server is address 1 (ie, the source station address), and the address of the routing device is address 2.
  • the CDN cache server returns the data acquisition request to address 1, and after changing the source address from address 1 to address 2, the CDN cache server will request the data acquisition when it needs to return the source. Returning the source to address 2, that is, sending a data acquisition request to the routing device.
  • Step 202 The routing device searches for data corresponding to the data acquisition request based on the data acquisition request.
  • the data acquisition request includes a URL (Uniform Resource Locator), and the data is stored in the storage center.
  • URL Uniform Resource Locator
  • the routing device searches for data corresponding to the data acquisition request based on the data acquisition request, and specifically includes:
  • the routing device determines a URI (Uniform Resource Identifier) in the URL based on the URL in the data acquisition request; the routing device performs data search based on the URI to determine a storage center where the data is located; and the storage device where the routing device extracts the data domain name.
  • a URI Uniform Resource Identifier
  • the data is searched by the URI, and the specific search has the following two methods:
  • a data index table is pre-stored in the routing device, and a correspondence relationship between each storage center and data stored in each storage center is stored in the index table.
  • the routing device performs data search based on the URI to determine the storage center where the data is located, and specifically includes: the routing device searches the index table based on the URI, and determines the storage center where the data is located.
  • the routing device stores an index table in advance, and the index table may be as shown in Table 1.
  • the data acquisition request includes a URL
  • the URL includes the domain name and the URI. Therefore, after receiving the data acquisition request, the routing device extracts the URI, and the URI can determine the data to be searched, for example, to check If the data G is found, it can be found in the storage center 2 through the index table, thereby searching for the data and recording the domain name of the storage center 2.
  • mapping between the domain name of each storage center and the data acquisition request is pre-stored in the routing device
  • the routing device performs data search based on the URI to determine the storage center where the data is located, and specifically includes: the routing device determines each storage center corresponding to the data acquisition request based on the correspondence relationship; the routing device searches for data in each storage center based on the URI to determine the data. Storage center.
  • Step 203 The routing device generates a feedback message based on the search result.
  • the routing device generates a feedback message based on the search result, which specifically includes:
  • the routing device generates a feedback message based on the search result, which specifically includes:
  • the routing setting generates a second URI as a feedback message based on the extracted domain name (ie, the domain name of the storage center where the data is located) and the URI.
  • the storage center includes a data center and a source station as an example. If the data is found in the data center, the domain name of the data center (for example, www.ABCD.com) and the URI (for example, 1.jpg) are used. Generating a second URL as a feedback message, for example, may be www.ABCD.com/1.jpg as a feedback message, and if it is determined that the data is stored in the source station, similarly, the domain name of the source station is extracted, for example, www. EFC.com, and URI, for example 1.jpg, generate a second URL as a feedback message, for example, www.EFC.com/1.jpg as a feedback message.
  • the domain name of the data center for example, www.ABCD.com
  • the URI for example, 1.jpg
  • Step 204 The routing device sends a feedback message to the CDN cache server, so that the CDN cache service acquires the data based on the feedback message.
  • step 203 a feedback message is generated, and then the routing device sends the generated feedback message to the CDN cache server, so that the CDN cache server receives the feedback message (either the second URL or the third URL).
  • the corresponding data is found based on the feedback message (either in the data center or at the source station), the data is cached, and the data is presented to the terminal where the user is located.
  • the above is based on the routing device side.
  • the second embodiment of the present application also provides a data acquisition method in the CDN cache server, as shown in FIG. 3, including:
  • Step 301 The CDN cache server returns the received data acquisition request to the routing device.
  • Step 302 The CDN cache server receives a feedback message that is sent by the routing device based on the data acquisition request, where the feedback message includes an address where the data corresponding to the data acquisition request is located;
  • Step 303 The CDN cache server acquires data corresponding to the data acquisition request based on the feedback message.
  • the feedback message includes a URL of the data, and the data is stored in the storage center;
  • the CDN cache server obtains the data corresponding to the data acquisition request based on the feedback message, and specifically includes:
  • the CDN cache server determines the domain name of the storage center where the data is located and the URI of the data based on the URL in the feedback message;
  • the CDN cache server fetches data in the determined storage center based on the URI.
  • the method further includes:
  • the CDN cache server caches the data and sends the data to the user terminal corresponding to the data acquisition request.
  • the second embodiment of the present application further provides a data acquisition method in a specific scenario, including:
  • the user has a lot of picture data, part of which is stored in the data center (data center domain name: user-bucket.oss.aliyuncs.com), and part of it is stored in the user-defined source station (source domain name is In :image-source.somesite.com), the user visits www.somesitecdn.com (the CDN domain name of the image). Since the user wants to migrate the image from the source station to the data center, the user needs to fill in his source domain name. Image-source.somesite.com, and register his current CDN domain name www.somesitecdn.com, and the routing device stores the mapping relationship between www.somesitecdn.com and image-source.somesite.com;
  • the CDN cache server When the user visits www.somesitecdn.com, it passes through the CDN cache server. Since the source address of the CDN cache server is modified into a routing device in advance, the CDN cache server returns the access request to the routing device, whereby the routing device is based on The access request looks up the data to determine if the data is stored in the data center or the source station.
  • a picture abc.jpg has been uploaded to the data center, then when the user visits www.somesitecdn.com/abc.jpg, the routing device finds the picture in the data center, then returns X-SECOND-PROXY- PASS: user-bucket.oss.aliyuncs.com/abc.jpg Header to the CDN cache server, CDN cache server then go to user-bucket.oss.aliyuncs.com/abc.jpg to capture the image, cache the image and return to user.
  • the CDN cache server performs multiple times of returning through the routing device, so that the user actually sees and accesses the same CDN domain name, and realizes that a CDN domain name can be returned to multiple source stations.
  • the third embodiment of the present application further discloses a routing device, as shown in FIG. 4, including:
  • the receiving module 401 is configured to receive a data acquisition request of a source back of the CDN cache server, where
  • the searching module 402 is configured to search for data corresponding to the data acquisition request based on the data acquisition request;
  • a generating module 403, configured to generate a feedback message based on the search result
  • the sending module 404 is configured to send the feedback message to the CDN cache server, so that the CDN cache server obtains the data based on the feedback message.
  • the routing device further includes:
  • the modifying module 505 is configured to modify the return source address of the CDN cache server from the source station address to the address of the routing device, so that when the CDN cache server returns the source, the routing device receives the data returned by the CDN cache server. Get the request.
  • the data acquisition request includes a URL of the data, and the data is stored in a storage center.
  • the searching module 402 is specifically configured to:
  • the routing device Determining, by the routing device, a URI in the URL based on a URL in the data acquisition request; the routing device performs a data search based on the URI to determine a storage center where the data is located; and the routing device extracts the The domain name of the storage center where the data resides.
  • the routing device is pre-stored with a data index table, where the index table stores a correspondence between each storage center and data stored in each storage center;
  • the searching module 402 performs a data search based on the URI to determine a storage center where the data is located, and specifically includes:
  • a lookup is performed in the index table based on the URI to determine a storage center where the data is located.
  • the routing device stores in advance a correspondence between a domain name of each storage center and the data acquisition request;
  • the searching module 402 performs a data search based on the URI to determine a storage center where the data is located, and specifically includes:
  • the data is looked up in various storage centers based on the URI to determine a storage center in which the data resides.
  • the generating module 403 is specifically configured to:
  • a second URI is generated as a feedback message based on the extracted domain name and the URI.
  • the embodiment of the present application further discloses a CDN cache server, as shown in FIG. 6, comprising:
  • the source module 601 is configured to return the received data acquisition request to the routing device.
  • the receiving module 602 is configured to receive a feedback message that is sent by the routing device based on the data acquisition request, where the feedback message includes an address where the data corresponding to the data acquisition request is located;
  • the obtaining module 603 is configured to acquire data corresponding to the data acquisition request based on the feedback message.
  • the feedback message includes a URL of the data, and the data is stored in a storage center;
  • the obtaining module 603 is specifically configured to:
  • the data is obtained in the determined storage center according to the URI.
  • the CDN cache server further includes:
  • a sending module configured to cache the data, and send the data to a user terminal corresponding to the data obtaining request.
  • the embodiment of the present application further discloses a data acquisition system, as described in FIG. 1 and FIG. 7, including:
  • a routing device configured to receive a data acquisition request from a source of the CDN cache server, search for data corresponding to the data acquisition request based on the data acquisition request, generate a feedback message based on the search result, and send the feedback message to the a CDN cache server, such that the CDN cache server acquires the data based on the feedback message;
  • a CDN cache server configured to: return a received data acquisition request to the routing device; and receive, by the routing device, a feedback message that is based on the data acquisition request, where the feedback message includes data corresponding to the data acquisition request. And the address corresponding to the data acquisition request is obtained based on the feedback message.
  • the data receiving request of the source of the CDN cache server is received by the routing device, and the data corresponding to the data obtaining request is searched based on the data obtaining request; and a feedback message is generated based on the search result,
  • a domain name can be returned to multiple storage centers, which reduces the cost of use and improves the user experience.
  • the present application can be implemented by hardware, or by software plus a necessary general hardware platform.
  • the technical solution of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various implementation scenarios of the present application.
  • modules in the apparatus in the implementation scenario may be distributed in the apparatus for implementing the scenario according to the implementation scenario description, or may be correspondingly changed in one or more devices different from the implementation scenario.
  • the modules of the above implementation scenarios may be combined into one module, or may be further split into multiple sub-modules.

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Abstract

La présente invention concerne un procédé et un dispositif d'acquisition de données. Le procédé comprend les étapes suivantes : un dispositif de routage reçoit un retour à l'origine de demande d'acquisition de données par un serveur cache de réseau de distribution de contenu (CDN), et le dispositif de routage recherche des données correspondant à la demande d'acquisition de données sur la base de la demande d'acquisition de données ; et le dispositif de routage génère un message de rétroaction sur la base d'un résultat de recherche, et envoie le message de rétroaction au serveur cache CDN, de telle sorte que le serveur cache CDN acquiert les données sur la base du message de rétroaction. De cette manière, au moyen d'un dispositif de routage, un retour à l'origine de nom de domaine d'une pluralité de centres de stockage est réalisé, ce qui permet d'économiser des ressources et d'améliorer l'expérience utilisateur.
PCT/CN2016/089307 2015-07-17 2016-07-08 Procédé et dispositif d'acquisition de données WO2017012475A1 (fr)

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CN113472852A (zh) * 2021-06-02 2021-10-01 乐视云计算有限公司 一种cdn节点的回源方法、装置及设备
CN113472852B (zh) * 2021-06-02 2023-07-25 乐视云网络技术(北京)有限公司 一种cdn节点的回源方法、装置、设备以及存储介质
CN115051876A (zh) * 2022-08-12 2022-09-13 中兴通讯股份有限公司 通信方法、xr联动通信系统、运行控制装置及存储介质

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