Hotspot equalization method and system for cache nodes of content delivery network
A content distribution network and caching node technology, which is applied in the field of content distribution network, can solve the problems of heavy load and uneven load of nodes, and achieve the effects of improving high availability, reducing the risk of single point failure, and reducing costs
Active Publication Date: 2020-12-18
SHANGHAI QINIU INFORMATION TECH
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Problems solved by technology
[0011] The purpose of the present invention is to overcome the defects of excessive load of some cache nodes and uneven load among nodes in the prior art, and provide a technical solution for evenly distributing the load of cache nodes in the content distribution network
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[0041] see figure 1 , figure 1 It shows a schematic flow chart of automatic hotspot equalization in an embodiment, specifically including steps S1 to S4:
[0042] Step S1: The gateway receives and parses the client's request link;
[0043] When the client sends a request link to the content distribution network node, the gateway receives and analyzes the request link of the client, and obtains the source address, target address, target link and other information of the request link;
[0044] Step S2: The gateway obtains the first cache node based on the request link;
[0045] In the embodiment of the present invention, the step of obtaining a cache node mainly includes:
[0046] Step S201: the gateway queries the policy configuration center to obtain the hotspot balancing policy related to the request;
[0047] The gateway obtains the address of the node to be balanced from the hotspot balancing strategy according to the request link, and the policy configuration center st...
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The invention discloses a hotspot equalization method for cache nodes of a content delivery network, the method is applied to an edge node system of the content delivery network, the edge node systemcomprises a gateway, at least two cache nodes and a back-to-source module, the method comprises the following steps: receiving and analyzing a request link of a client; obtaining a first cache node inthe request link; constructing a cache request, and forwarding the cache request to the first cache node for processing; and receiving the returned cache data, and returning the cache data to the client. The invention further discloses a hotspot equalization system for cache nodes of a content delivery network, by utilizing the method and the system disclosed by the invention, the service of thecontent delivery network has the capabilities of overload protection and hotspot balancing, the risk of single-point failure of the service is reduced, and the high availability of the service is improved, so that the method and the system have obvious technical advantages and beneficial effects.
Description
technical field [0001] The present invention relates to the field of content distribution network, in particular to a method and system for balancing hotspots of caching nodes in the content distribution network. Background technique [0002] Usually, an edge node of a content distribution network consists of a gateway, a cache module and a back-to-source module. Among them, the gateway will firstly have access control, secondly have the control of current limit and limit, and finally forward the url (uniform resource locator) request to the cache module through the consistent hash algorithm; and the cache module is usually responsible for distributing other content to the network The response data is cached. When a url accesses the cache module, the cache module will first check whether the cache data of the url is stored on its node. If it does not exist, the request will be forwarded to the back-to-source module; The request is forwarded to the origin site or other conte...
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IPC IPC(8): H04L29/08
CPCH04L67/1008H04L67/568
Inventor 吴信谊姜智余小伟
Owner SHANGHAI QINIU INFORMATION TECH