DNS Query Pre-Processing for Lower Content Delivery Latency
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Solution Overview
Problem
Content providers and CDN service providers face challenges in efficiently managing high volumes of content requests from client computing devices, particularly due to the strain on computing resources caused by embedded resources, which can be addressed by optimizing DNS query processing to implement pre-processing actions.
Innovation Solution
A DNS server component identifies pre-processing information from DNS queries to anticipate and accelerate content delivery by instructing computing devices to take actions such as preloading or transcoding resources before requests are made, thereby optimizing resource availability and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If content providers directly serve content requests from client computing devices, then they can maintain control over content delivery, but they experience strain on computing resources due to high volumes of requests
Solution Approach 1:
The patent introduces a CDN service provider as an intermediary between content providers and client computing devices. The CDN service provider operates computing devices that receive content requests from clients, retrieve content from the content provider, and deliver it back to the client. This intermediary system relieves the content provider's computing resources from handling individual request transactions while maintaining delivery control through coordinated operations.
2Speed
If CDN service providers maintain computing devices to cache and deliver content, then they can reduce latency and improve delivery efficiency, but they increase the complexity of the content delivery system
Solution Approach 1:
The patent implements preliminary action by having the CDN service provider's computing devices cache content from the content provider in advance of actual client requests. The system pre-positions content at strategic locations within the CDN network, so when clients request content, it can be delivered immediately from the cache rather than being retrieved in real-time from the origin server. This reduces latency while the modular CDN architecture manages complexity through standardized caching and delivery protocols.
3Device complexity
If content is delivered directly from the content provider to each client, then the system architecture remains simple, but response times increase due to the distance and load on the content provider
Solution Approach 1:
The patent applies segmentation by dividing the monolithic content delivery function into separate components: the content provider that maintains the master copy of content, and multiple CDN edge servers distributed geographically that handle delivery to clients. Each CDN server serves a specific region or client segment, reducing the distance and load on any single system. This segmented architecture improves response times while managing complexity through clear separation of concerns between origin and edge functions.
Data Source
AI summary
Systems and methods for processing a DNS query to identify and implement pre-processing information by a DNS server component in anticipation of a corresponding content request from a client computing device are provided. The pre-processing information can correspond to identification of content to be preloaded or other actions to be implemented by one or more computing devices in association with an anticipated client content request. Based on identification of the content or future actions, a DNS server component can provide the pre-processing information to one or more computing devices, such as computing devices of a CDN service provider and/or an original content provider, in advance of a corresponding request for content from the client computing device in order to improve performance associated with responding to the client request.