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[Bounty Submission] Resilient background job retry & monitoring#594

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zhdtty wants to merge 1 commit intorohitdash08:mainfrom
zhdtty:feature/resilient-job-retry
Open

[Bounty Submission] Resilient background job retry & monitoring#594
zhdtty wants to merge 1 commit intorohitdash08:mainfrom
zhdtty:feature/resilient-job-retry

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@zhdtty zhdtty commented Mar 21, 2026

👋 I'm @zhdtty and I'm submitting this PR for the Resilient background job retry & monitoring bounty (#130).

Summary

This PR implements a production-grade background job system with resilient retry logic, comprehensive monitoring, and dead letter queue support.

Technical Implementation

Core Features

  • Celery + Redis for distributed task processing
  • Exponential backoff retry with 5 max retries and jitter
  • Dead letter queue for failed tasks requiring manual intervention
  • Priority queues (high/default/low) for different workload types
  • Idempotency via Redis-based deduplication
  • Time limits (soft/hard) to prevent runaway tasks

Task Categories

  1. Reminder Tasks ()

      • Send notifications with retry
      • Periodic job to queue due reminders
      • Maintenance task for old logs
  2. AI Tasks ()

      • AI-powered financial insights
      • OCR receipt processing
  3. Report Tasks ()

      • Weekly financial summaries
      • Comprehensive monthly reports
      • Batch scheduling for all users

Monitoring & Observability

  • Prometheus metrics: task executions, durations, retries, failures
  • Flower UI: Real-time task monitoring at
  • API endpoints: , ,
  • NotificationLog model: Track delivery attempts and outcomes

Infrastructure

  • Docker Compose setup with dedicated worker containers
  • Celery Beat scheduler for periodic tasks
  • Separate worker pools per queue for resource isolation

Testing

  • Comprehensive test suite in
  • Tests for retry logic, dead letter queue, task monitoring
  • All tests passing with mocked external services

Documentation

Full documentation in covering:

  • Architecture overview
  • Task usage examples
  • Monitoring and troubleshooting
  • Configuration options

Verification Steps

  1. Run
  2. Access Flower at http://localhost:5555
  3. Create a reminder and verify it's processed
  4. Check for metrics

Checklist

  • Production-ready implementation
  • Comprehensive tests included
  • Documentation updated
  • Docker Compose configuration
  • Monitoring and observability

Bounty Details


Looking forward to your review!

- Add Celery with Redis for task queuing
- Implement exponential backoff retry strategy (5 retries max)
- Create dead letter queue for failed tasks
- Add priority queues (high/default/low)
- Implement comprehensive monitoring with Prometheus metrics
- Add Flower UI for task monitoring
- Create task management API endpoints
- Add NotificationLog model for delivery tracking
- Create Celery beat schedule for periodic tasks
- Add Docker Compose configuration for full stack
- Write comprehensive tests for task system
- Document background job system

Addresses bounty: Resilient background job retry & monitoring ()
Closes rohitdash08#130
@zhdtty zhdtty requested a review from rohitdash08 as a code owner March 21, 2026 08:13
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