CDN Request Scheduling via Domain Rewriting for Equipment Room Routing
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Solution Overview
Problem
Existing CDN network request scheduling methods fail to ensure that access requests are allocated to the correct equipment room units, particularly in complex service scenarios involving converged CDNs, due to the inability of CDN nodes to handle cell-based forwarding.
Innovation Solution
A CDN network request scheduling method that involves obtaining attribution information from clients, rewriting domain names using predefined rules to include CDN service provider and equipment room identifiers, and forwarding requests to the appropriate equipment rooms based on these identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DNS-based resolution is used to forward traffic to different equipment room units, then users can access equipment room units in corresponding regions, but it cannot be ensured that access requests are allocated to the equipment room units in the corresponding regions
Solution Approach 1:
The patent segments the domain name into multiple parts including CDN service provider identifier and equipment room identifier. This segmentation allows the scheduling system to precisely route requests to specific equipment room units while maintaining system modularity and manageability.
Solution Approach 2:
The patent performs preliminary domain name rewriting at the client side before request transmission. By pre-processing the domain name to include scheduling information, the system ensures accurate request allocation without requiring complex real-time scheduling decisions at the CDN node level.
2Adaptability or versatility
If forwarding and redirection based on access gateway is used, then user traffic can be forwarded to corresponding equipment room units, but when a forwarding path passes through a CDN node, the CDN node does not know how to handle cell-based forwarding
Solution Approach 1:
The patent uses the rewritten domain name as an intermediary carrier to transmit scheduling information. Instead of requiring CDN nodes to understand complex cell-based forwarding mechanisms, the domain name itself encodes the routing information, simplifying the forwarding process at CDN nodes while maintaining adaptability to different CDN scenarios.
Solution Approach 2:
The patent changes the parameter representation by embedding equipment room identifiers and CDN service provider identifiers directly into the domain name structure. This parameter transformation allows standard CDN nodes to handle specialized routing requirements without requiring complex additional mechanisms.
3Measurement precision
If domain name rewriting with CDN service provider identifier and equipment room identifier is implemented, then accurate scheduling to correct equipment rooms is achieved, but the domain name structure becomes more complex
Solution Approach 1:
The patent segments the domain name into distinct components including CDN service provider identifier and equipment room identifier. This segmentation achieves precise scheduling by allowing each component to carry specific routing information while maintaining an organized and manageable domain name structure.
Data Source
AI summary
Disclosed in the present disclosure are a CDN network request scheduling method, an electronic device, and a storage medium. The method includes: obtaining an original network request generated by the client for a target service; obtaining a first domain name rewriting rule corresponding to the target attribution information, and rewriting the original domain name by using the first domain name rewriting rule, to obtain a first domain name; updating the original domain name in the original network request by using the first domain name, to obtain a target network request; and sending the target network request to a target CDN server corresponding to the target CDN service provider identifier, so that the target CDN server obtains a target scheduling path corresponding to the target equipment room identifier, and forwards the target network request to a target equipment room according to the target scheduling path.