Dispatcher Load Balancing via Connectivity Disruption Feedback
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Solution Overview
Problem
Existing load balancing systems in distributed computing environments are vulnerable to connectivity disruptions between network service providers, which can negatively impact performance and are not effectively managed by current methods.
Innovation Solution
A communications system that includes source servers connected to the Internet via different portions, a dispatcher to collect and distribute jobs based on connectivity disruption information, and a knowledge base to store this information for informed routing decisions, ensuring that jobs are directed to servers with the best connectivity for target servers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If jobs are distributed across all available servers to provide faster processing, then productivity is improved, but reliability deteriorates when connectivity disruptions occur between network service providers
Solution Approach 1:
The system implements feedback mechanisms where source servers generate connectivity disruption information about target servers, the dispatcher collects this information from multiple source servers, and uses it to dynamically adjust job distribution decisions. This feedback loop enables the system to adapt to changing connectivity conditions and avoid routing jobs through disrupted network paths.
Solution Approach 2:
The system performs preliminary actions by having source servers continuously generate and report connectivity disruption information before jobs are distributed. The dispatcher collects and stores this information in advance in a knowledge base, so when job distribution decisions need to be made, the system already has up-to-date connectivity information available to guide routing decisions.
2Productivity
If load balancing distributes jobs uniformly across servers, then productivity is improved, but adaptability deteriorates when connectivity disruptions occur
Solution Approach 1:
The system transitions from static uniform load distribution to dynamic adaptive distribution. The dispatcher continuously collects connectivity disruption information from multiple source servers and adjusts job distribution decisions in real-time based on current network conditions. This dynamic approach allows the system to maintain high throughput by routing jobs through available paths while adapting to changing connectivity conditions.
Solution Approach 2:
The system changes the parameter of job distribution from uniform random selection to selection based on connectivity status. By using connectivity disruption information as a parameter for decision-making, the system can adjust which source servers receive jobs based on their current network connectivity to target servers, thereby maintaining productivity while adapting to connectivity failures.
3Reliability
If connectivity disruption information is collected from multiple source servers, then reliability is improved, but device complexity increases
Solution Approach 1:
The dispatcher serves as an intermediary that collects connectivity disruption information from multiple source servers and consolidates it into a unified knowledge base. This intermediary approach allows the system to gather reliable information from multiple sources without requiring complex direct communication between all components, simplifying the overall system architecture while maintaining reliability.
Solution Approach 2:
The system merges connectivity disruption information from multiple source servers into a single knowledge base maintained by the dispatcher. By combining information from multiple sources and consolidating it in one central location, the system achieves reliable connectivity information without the complexity of distributed decision-making across multiple independent components.
Data Source
AI summary
A communications system may include a plurality of target servers and a plurality of source servers connected to the Internet via respective different portions thereof. The source servers may be for establishing connections to desired target servers via the Internet, and they may also be subject to connectivity disruptions. Further, the source servers may generate connectivity disruption information for respective target servers. The communications system may further include a dispatcher for collecting the connectivity disruption information from the source servers, and for distributing jobs to the source servers based upon a respective target server associated with each job and the connectivity disruption information for the respective target server.