Content delivery CDN sub system and data synchronization method

Abstract

The invention discloses a content delivery CDN sub system and a data synchronization method. The CDN sub system concretely comprises a CDN management module, a storage module, a data base module, a CDN node and a data synchronization server, wherein the CDN node is used for sending the data synchronization requests and obtaining synchronization data files from the storage module according to received synchronization data notification messages; and the data synchronization server is used for receiving the data synchronization requests sent by the CDN node, obtaining full data or increased data from the data base module according to the data synchronization requests, storing the full data or increased data into a memory, generating the data files according to the memory data to be sent to the storage module, and sending the synchronization data notification messages to the CDN node. When the method and the system provided by the invention are used, the data amount of the synchronization data can be reduced, so the load of a service data base can be reduced, and the reliability of the system is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a content distribution CDN subsystem and a data synchronization method applied in an IPTV system. Background technique [0002] Internet Protocol Television (IPTV for short) is a technology that uses a broadband cable TV network to provide home users with a variety of interactive services including digital TV. resources and technologies to provide interactive television services to users. IPTV will gradually replace the existing analog TV and digital TV, becoming the development trend of the TV industry. [0003] The Content Delivery Network (CDN) subsystem is one of the most important subsystems in the IPTV system, which is responsible for scheduling, distribution, service, and management of all services in the entire IPTV system. The CDN subsystem in the prior art IPTV mainly includes a CDN management module, a CDN node (including a CDN agent management module and a bu...

AI Technical Summary

Problems solved by technology

[0013] The embodiment of the present invention provides a CDN subsystem for content distribution and a data synchronization method, which overcomes the problems in the prior art that obtain all data from the database with each synchronization, and use a single storage module to cause database efficiency and affect system reliability.

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