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BUG: Server crashes on startup due to database connection failures (IPv6/DNS issues)

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#228 1 comment 0 reactions 0 assignees View on GitHub

@Vishal-RAJ-DEV is already working on this.

Since Dec 10, 2025.

  • #227 by @Vishal-RAJ-DEV — open
  • #250 by @Sumanth2377 — open

Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
fastapi, postgresql, python, supabase
Domain
backend, databases

Research direction

No files, tests, or entry points are named. Start by reproducing startup with the Supabase PostgreSQL connection and inspect the database initialization and trending_niches access; done should include a non-crashing server, actionable errors, and defined behavior when IPv6 connectivity or the table is unavailable.

Written by the indexing model from the issue text.

Description

Is there an existing issue for this?
  • I have searched the existing issues
What happened?
Problem Description

The backend server crashes during startup due to database connection failures, specifically related to IPv6 DNS resolution issues with Supabase PostgreSQL connections.

Current Behavior
  • ❌ Server fails to start with getaddrinfo failed errors
  • ❌ No graceful fallback when PostgreSQL connection fails
  • ❌ Missing trending_niches table causes API endpoint crashes
  • ❌ Poor error messaging makes debugging difficult
  • ❌ Complete server failure instead of degraded functionality
Expected Behavior
  • ✅ Server should start successfully even with database connection issues
  • ✅ Graceful fallback to alternative database connection methods
  • ✅ Clear error messages guiding users on setup requirements
  • ✅ Robust error handling for missing tables
  • ✅ Development-friendly experience
Error Messages
Environment
  • OS: Windows 11
  • Python: 3.10
  • FastAPI: Latest
  • Database: Supabase PostgreSQL
  • Network: IPv6-only Supabase host with limited IPv6 connectivity
Root Cause Analysis
  1. IPv6 Connectivity: Supabase hosts resolve to IPv6-only addresses
  2. Network Limitations: Local network/ISP doesn't support IPv6 properly
  3. DNS Resolution: getaddrinfo fails for IPv6 addresses
  4. Missing Fallback: No alternative connection method
  5. Missing Tables: trending_niches table doesn't exist in database schema
Impact
  • 🚫 Blocks Development: New developers can't run the project
  • 🚫 Production Risk: Server crashes in environments with IPv6 issues
  • 🚫 Poor DX: Frustrating developer experience during setup
  • 🚫 Deployment Issues: Unreliable in various network configurations
Proposed Solution

Implement a robust database connection system with:

  1. IPv6 Detection & Handling

    • Detect IPv6 connectivity issues
    • Implement connection retry with exponential backoff
    • Add timeout configurations

  2. Supabase REST API Fallback

    • Use Supabase REST API when PostgreSQL fails
    • Maintain full CRUD functionality
    • Seamless fallback without code changes

  3. Enhanced Error Handling

    • Graceful handling of missing tables
    • Clear setup instructions for developers
    • Informative error messages instead of crashes

  4. Table Management

    • Auto-detection of missing tables
    • Setup instructions for manual table creation
    • Proper schema validation
Benefits of Fix
  • 🎯 100% Uptime: Server never crashes due to database issues
  • 🔄 Auto-Recovery: Automatically switches to working connection
  • 🛠️ Developer Friendly: Clear instructions and error messages
  • 📈 Production Ready: Handles various network configurations
  • 🚀 Improved DX: Smooth onboarding for new contributors
Labels

bug, database, connectivity, good-first-issue, help-wanted, enhancement

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  • I want to work on this issue
Dominant language
TypeScript
Stars
101
Forks
145
No merged PRs in 30d

Getting set up

  • No Dockerfile or Docker Compose file
  • Has a pull request template
  • No contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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