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Add Concurrency Control Design #92

Description

@bcherrington

Description

Add design details for worker pool management, resource limits, and error propagation in concurrent operations.

Rationale

Effective concurrency control is essential for performance and stability when handling multiple uploads and downloads simultaneously.

Impact

High - Would improve performance and resource utilization while preventing system overload.

Relevant Documentation

  • Requirements: NFR-PERF-002
  • Architecture: SAS 3.2.3 (Key Abstractions - UploadManager/DownloadManager)
  • Design: SDS 2.1 (Class Diagram - UploadManager and DownloadManager classes)
  • Implementation: fs/upload_manager.go, fs/download_manager.go

Implementation Notes

  • Design worker pool architecture for concurrent operations
  • Implement resource limits and throttling mechanisms
  • Create error propagation patterns for concurrent tasks
  • Add prioritization for critical operations
  • Implement cancellation and timeout handling
  • Design monitoring and metrics for concurrent operations

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    documentationImprovements or additions to documentationenhancementNew feature or requestperformancePerformance improvementsstabilityStability improvements

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