WO2017080459A1 - Procédé, dispositif et système de mise en cache et de fourniture de contenu de service et support de stockage - Google Patents

Procédé, dispositif et système de mise en cache et de fourniture de contenu de service et support de stockage Download PDF

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Publication number
WO2017080459A1
WO2017080459A1 PCT/CN2016/105244 CN2016105244W WO2017080459A1 WO 2017080459 A1 WO2017080459 A1 WO 2017080459A1 CN 2016105244 W CN2016105244 W CN 2016105244W WO 2017080459 A1 WO2017080459 A1 WO 2017080459A1
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Prior art keywords
identifier
cache
url
message
content
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PCT/CN2016/105244
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English (en)
Chinese (zh)
Inventor
唐彦霞
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中兴通讯股份有限公司
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Publication of WO2017080459A1 publication Critical patent/WO2017080459A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • 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
    • 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

Definitions

  • 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.
  • FIG. 1 is a schematic diagram of a user acquiring network content.
  • 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.
  • IP Internet Protocol
  • 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.
  • IP Internet Protocol
  • 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).
  • Web World Wide Web
  • HTTP Hypertext Transfer Protocol
  • 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.
  • mobile cellular networks eg 2G, 3G or Long Term Evolution (LTE, Long Term) Evolution
  • WLAN wireless local area network
  • PCs personal computers
  • mobile terminals personal computers
  • 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.
  • MD5 message digest algorithm 5
  • 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:
  • 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:
  • 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:
  • 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.
  • This embodiment further provides another method for caching and providing service content, including:
  • 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.
  • 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.
  • FIG. 1 is a schematic diagram of a user acquiring network content
  • FIG. 2 is a schematic flowchart of a method for caching and providing service content according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an RR device according to an embodiment of the present invention.
  • FIG. 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.
  • FIG. 2 provides a method for caching content, including:
  • Step 200 The RR device hijacks an access request of the user equipment.
  • the URL is included in the access request.
  • 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.
  • 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.
  • 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.
  • 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.
  • %d represents a number
  • %. represents any character
  • %x represents a hexadecimal number
  • %w represents a letter or a number
  • + represents a plurality
  • &ns is a parameter of a URL.
  • the regular expression can be summarized by looking at the URL of each content.
  • 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. .
  • the RR device 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the RR device sends the access request to the server, and the server serves the user equipment.
  • 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 method for caching and providing the service content may include:
  • 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 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,
  • 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.
  • the access request, and the cached success message refer to the foregoing embodiment, and the description will not be repeated here.
  • 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.
  • 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.
  • 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:
  • 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 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.
  • the method further includes:
  • the embodiment further provides another method for caching and providing service content.
  • the method is applied to the cache device, and includes:
  • 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 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.
  • the method further includes:
  • 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 further includes:
  • an 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 in the access request is successful, and save the obtained identifier.
  • the hijacking module is configured to:
  • the first sending module is configured to:
  • 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.
  • the first sending module is further configured to:
  • 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 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.
  • an embodiment of the present invention further provides a content load balancing apparatus, including 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 second sending module is configured to:
  • 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 second receiving module is further configured to:
  • the second sending module is further configured to:
  • the second receiving module is further configured to:
  • the second sending module is further configured to:
  • an embodiment of the present invention further provides a cache device, including 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 third sending module is configured to:
  • 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.
  • 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 third receiving module is further configured to:
  • 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.
  • an embodiment of the present invention further provides 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 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.
  • the RR device is further configured to:
  • the content load balancing device is also configured to:
  • 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.

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Abstract

La présente invention concerne un procédé, un dispositif et un système de mise en cache et de fourniture de contenu de service, le procédé comprenant les étapes suivantes : un routeur de demande (RR) détourne une demande d'accès d'un équipement utilisateur ; le RR acquiert un identifiant correspondant à un localisateur uniforme de ressources (URL) dans la demande d'accès et, l'identifiant acquis n'étant pas trouvé dans l'identifiant préstocké, il envoie un message mis en cache préalablement à un système d'équilibrage de charge de contenu ; le système d'équilibrage de charge de contenu acquiert l'identifiant correspondant à l'URL dans le message mis en cache préalablement, et envoie le message mis en cache préalablement à un dispositif de mise en cache correspondant à l'identifiant acquis ; le dispositif de mise en cache acquiert l'identifiant correspondant à l'URL dans le message mis en cache préalablement, calcule le trajet correspondant à l'identifiant, met en cache le contenu qui est téléchargé d'un serveur et correspond à l'URL, sur le trajet acquis par calcul, et envoie un message de réussite de mise en cache au RR ; et le RR sauvegarde l'identifiant acquis. Les modes de réalisation de la présente invention concernent un support de stockage informatique.
PCT/CN2016/105244 2015-11-10 2016-11-09 Procédé, dispositif et système de mise en cache et de fourniture de contenu de service et support de stockage WO2017080459A1 (fr)

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