Dynamic Service Request Rerouting for Composite Web Services
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Solution Overview
Problem
Integrating multiple levels of hosted services offered by different service providers into composite services is challenging due to difficulties in ensuring consistent performance and resource allocation across various service endpoints.
Innovation Solution
Implementing a dynamic rerouting mechanism that assigns service requests to initial service endpoints meeting minimum performance thresholds defined by Service Level Agreements (SLAs), with continuous monitoring and rerouting to alternate endpoints as necessary to maintain SLA compliance, thereby minimizing costs and maximizing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If service requests are assigned to initial service endpoints based on minimum performance thresholds, then SLA compliance is maintained, but system complexity increases due to continuous monitoring and dynamic rerouting requirements
Solution Approach 1:
The patent introduces a service endpoint management system that acts as an intermediary between service requests and multiple service endpoints. This mediator continuously monitors performance metrics, evaluates SLA compliance, and dynamically reroutes requests without requiring individual endpoints to implement complex monitoring logic, thus centralizing complexity in a dedicated management layer
Solution Approach 2:
The system implements dynamic rerouting where service requests are continuously reassigned between service endpoints based on real-time performance monitoring. When endpoints fail to meet SLA thresholds, the system automatically transitions requests to alternative endpoints, creating a flexible, adaptive routing mechanism that maintains reliability while distributing load dynamically
2Productivity
If multiple service endpoints are used to handle service requests, then resource utilization efficiency improves, but difficulty in ensuring consistent performance across endpoints increases
Solution Approach 1:
The patent implements continuous performance monitoring of service endpoints with feedback loops that track metrics such as response time, throughput, and error rates. This feedback mechanism enables the system to identify underperforming endpoints and automatically reroute requests to maintain consistent service quality across multiple endpoints, ensuring uniform performance standards are met
Solution Approach 2:
The system dynamically changes routing parameters based on monitored performance metrics. By adjusting which endpoints receive requests based on real-time parameter evaluation (performance thresholds, SLA compliance), the system maintains consistent service quality while efficiently utilizing multiple endpoints with varying capabilities
3Reliability
If dynamic rerouting is implemented to maintain SLA compliance, then service reliability improves, but loss of time due to monitoring and rerouting operations increases
Solution Approach 1:
The system performs preliminary evaluation of service endpoints against SLA thresholds before assigning requests. By pre-assessing endpoint capability and performance status, the system can make faster routing decisions and avoid time-consuming evaluations during request handling, thus reducing the time overhead of dynamic rerouting while maintaining reliability
Data Source
AI summary
Technologies are described herein for rerouting a service request between service endpoints. The service request is received, at a first web service, from a second web service. The first web service and the second web service may be components of a composite service. The service request is routed to an initial service endpoint configured to respond to the service request according to a service level agreement between the first web service and the second web service. Service criteria associated with the initial service endpoint are monitored. A determination is made as to whether the service criteria meet a performance threshold specified by the service level agreement. If the service criteria do not meet the performance threshold specified by the service level agreement, then the service request is rerouted from the initial service endpoint to an alternate service endpoint.