Resource Assignment Recovery Notification System
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Solution Overview
Problem
Existing systems fail to effectively communicate the loss of resources or data to entities that could restore them, leading to unavailability and interruption of access in data centers.
Innovation Solution
A resource assignment system with recovery notification procedures that invokes recovery notification calls in response to registration, generating messages to report lost resources or buckets to applications or nodes, utilizing a partitioning and recovery manager to allocate leases and manage resource ownership across nodes, and employing consistent hashing for bucket management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system uses traditional resource allocation without recovery notification, then the system structure remains simple, but resource loss goes undetected and cannot be restored
Solution Approach 1:
The system performs preliminary actions by establishing lease agreements and registration mechanisms before resource loss occurs. The owner node registers its resources with the lookup library in advance, and the system continuously monitors lease validity, enabling proactive detection and notification of resource loss before it impacts system operations.
Solution Approach 2:
The invention implements a feedback mechanism where the lookup library continuously monitors resource availability and sends recovery notifications to owner nodes when resources are lost or become unavailable. This closed-loop feedback system enables automatic detection, notification, and restoration of lost resources, improving reliability while maintaining manageable system complexity through automated processes.
2Reliability
If the system implements recovery notification procedures, then resource loss detection and restoration is improved, but system complexity increases
Solution Approach 1:
The lookup library serves as an intermediary between owner nodes and client devices, centralizing the resource monitoring and notification functions. Instead of implementing complex peer-to-peer monitoring between all nodes, the lookup library mediates resource registration, lease management, and recovery notifications, simplifying the overall system architecture while enabling comprehensive resource loss detection and restoration.
3Loss of time
If the system continuously monitors resource availability, then resource loss is detected timely, but system overhead and processing load increase
Solution Approach 1:
The system uses periodic lease renewal mechanisms instead of continuous monitoring. The owner node must periodically renew its lease agreements with the lookup library to maintain resource ownership. This periodic action efficiently detects resource loss (when lease renewal fails) while minimizing system overhead compared to continuous monitoring approaches.
Data Source
AI summary
The application discloses a resource assignment system including recovery notification procedures or methods to notify an application or node of potentially lost resources. The recovery notification procedures or calls are invoked in response to a recovery notification registration function. In response to recovery notification registration, a recovery notification or call is generated to report lost resources.