Zero-Downtime Schema Migrations in Production PostgreSQL
📰 Dev.to · SoftwareDevs mvpfactory.io
Learn how to perform zero-downtime schema migrations in production PostgreSQL using tools like pg_osc and pgroll
Action Steps
- Use advisory locks to coordinate migration workers
- Implement shadow/ghost table copy-and-swap strategies for online schema changes
- Configure trigger-based row synchronization during migration
- Apply backfill batching and progress tracking for efficient migration
- Set up automatic rollback for failed migrations
Who Needs to Know This
Database administrators and developers on a team can benefit from this knowledge to ensure seamless schema updates without disrupting API requests
Key Insight
💡 Use advisory locks and shadow tables to perform online schema changes without locking out API requests
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🚀 Zero-downtime schema migrations in PostgreSQL? Yes! Learn how with pg_osc and pgroll 📈
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