Hierarchical Publish Subscribe System for Scalable Message Routing
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Solution Overview
Problem
Conventional publish/subscribe systems face scalability issues as they are scaled up, leading to increased complexity, security concerns, and performance degradation due to the large number of connections between clients and servers.
Innovation Solution
A hierarchical publish/subscribe system is introduced, where subscription requests are aggregated at remote relays and forwarded to central relays, reducing the number of connections and implementing a 'subscribe to one, publish to all' mechanism to eliminate duplicates and improve message delivery efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional publish/subscribe system is scaled up, then the system can handle more messages and subscribers, but the number of connections between clients and servers increases, leading to increased complexity and security concerns
Solution Approach 1:
The patent introduces a hierarchical architecture with multiple levels of relays (remote relays and central relays) to segment the traditional flat client-server connection structure. This segmentation reduces the number of direct connections by routing messages through intermediate relay nodes, thereby maintaining high message handling capacity while reducing connection complexity and security risks.
Solution Approach 2:
The patent employs relay nodes as intermediary components between clients and servers. These relays aggregate subscription requests and forward publication requests, acting as mediators that reduce the number of direct connections required. The relays maintain subscription information and route messages efficiently, solving the contradiction between productivity and connection complexity.
2Productivity
If a conventional publish/subscribe system is scaled up, then the system can handle more subscribers, but the number of connections increases, leading to performance degradation
Solution Approach 1:
The patent merges multiple subscription requests from different clients into a single subscription request at the relay level. By aggregating subscriptions at remote relays before forwarding to central relays, the system reduces the number of individual connection handling operations, thereby maintaining fast message delivery speeds even as the number of subscribers increases.
Solution Approach 2:
Relay nodes serve as intermediaries that pre-process and aggregate subscription information, reducing the overhead of individual connection handling. This mediation allows the system to maintain high message delivery speeds by minimizing the number of direct server-client interaction cycles required.
3Productivity
If a conventional publish/subscribe system is scaled up, then the system can handle more messages, but the number of connections increases, leading to increased security concerns
Solution Approach 1:
The hierarchical relay architecture segments the client-server communication into multiple trusted intermediate layers. By routing messages through relays that maintain authentication and authorization mechanisms, the system reduces the attack surface associated with direct client-server connections, thereby addressing security concerns while maintaining high message handling capacity.
Solution Approach 2:
Relay nodes act as secure intermediaries that enforce authentication and authorization policies between clients and servers. These intermediaries centralize security management and reduce the number of direct connection points that could be exploited, thereby reducing security risks while maintaining productivity.
4Reliability
If subscription requests are forwarded to all central relays, then message delivery reliability is improved, but redundant subscriptions and message processing occur
Solution Approach 1:
The patent implements preliminary action by having remote relays aggregate and filter subscription requests before forwarding them to central relays. This pre-processing eliminates duplicate subscriptions and reduces the number of messages that need to be processed at the central relay level, thereby maintaining message delivery reliability while reducing processing complexity.
Solution Approach 2:
The system uses feedback mechanisms where central relays acknowledge received subscriptions and publications, allowing remote relays to track which subscriptions have been successfully propagated. This feedback loop prevents redundant processing by allowing remote relays to optimize their message forwarding based on confirmation from central relays.
Data Source
AI summary
A method for transmitting messages in a publish/subscribe message system. The method also includes: receiving, at a first relay, a subscription request from a first client; recording, at the first relay, subscription information of the first client based on the subscription request; receiving, at the first relay, a publication request from a second client, wherein the publication request includes a message; and transmitting the message to the first client.