Unified Routing and Caching Logic for CDN Edge Servers
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Solution Overview
Problem
Current content delivery networks (CDNs) face challenges in synchronizing routing and caching behaviors across different caches, requiring separate defined logic for each cache, which is burdensome for developers and prone to errors and inefficiencies.
Innovation Solution
A unified routing and caching logic system that receives a unified set of logic for multiple caches, analyzes it, and atomically sends the appropriate subset to each cache, allowing developers to specify caching and routing behaviors once, with the system handling configuration for all caches uniformly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate routing and caching logic is defined for each cache (browser cache, service worker cache, CDN cache), then each cache can be configured independently, but the device complexity and difficulty of maintenance increase significantly
Solution Approach 1:
The patent merges separate routing and caching logic definitions for browser cache, service worker cache, and CDN cache into a single unified logic definition. This unified logic is then automatically distributed to all cache types, reducing the number of separate code pieces from five or more to one, while maintaining the ability to configure each cache independently through the unified interface.
Solution Approach 2:
The patent creates a universal routing and caching logic definition that serves multiple cache types simultaneously. This single logic definition is adaptable to different cache implementations (browser cache, service worker cache, CDN cache) without requiring separate configurations for each, thereby reducing complexity while preserving adaptability.
2Adaptability or versatility
If separate routing and caching logic is defined for each cache, then specific cache behaviors can be customized, but the time required for updates and modifications increases
Solution Approach 1:
By combining all cache-specific routing and caching logic into a single unified definition, the patent enables developers to make changes in one place rather than evaluating and modifying multiple separate code pieces. This significantly reduces the time required for updates while maintaining the ability to customize behavior for each cache type through the unified logic.
3Adaptability or versatility
If multiple separate pieces of code are used for routing and caching logic, then each cache can be optimized individually, but the probability of errors and inconsistencies increases
Solution Approach 1:
The patent merges the definition of routing and caching logic into a single source that is automatically distributed to all cache types. This ensures that all caches receive consistent logic from the same definition, eliminating errors that arise from manual copying or synchronization of separate code pieces, while still allowing individual cache optimization through the unified interface.
Solution Approach 2:
The system implements automatic distribution and synchronization of the unified routing and caching logic to all cache types. This feedback mechanism ensures that any changes to the unified logic are automatically propagated to all caches, maintaining consistency and reducing the probability of errors across the system.
Data Source
AI summary
Disclosed are systems and methods for providing unified routing and caching logic for applications utilizing a CDN. First, the system maintains access to one or more edge servers for a CDN, with the one or more edge servers being configured to execute edge logic. The system receives code for an application in a specified application framework, with the code and/or application framework including a unified set of routing and caching logic for dynamic data to be applied to a number of caches, and with the unified set of routing and caching logic being derived from a centralized definition. For each of the caches, the system first analyzes the set of routing and caching logic to determine a subset of the routing and caching logic to be executed by the cache, and then atomically sends the determined subset of the routing and caching logic to the cache.