Scaling PostgreSQL without Microservices: Lessons from Notion’s 480 Shards

📰 Dev.to · Souvick Sarkar

Learn how Notion scaled PostgreSQL to 480 shards without microservices, and apply these lessons to your own database scaling challenges

advanced Published 21 Feb 2026
Action Steps
  1. Analyze your database workload to identify bottlenecks and areas for optimization
  2. Configure PostgreSQL for horizontal partitioning using sharding
  3. Implement a sharding strategy using a library or framework like Postgres-XL or Citus
  4. Test and monitor your sharded database for performance and scalability
  5. Apply lessons from Notion's experience to your own database scaling challenges
Who Needs to Know This

Database administrators and engineers on a team can benefit from this article to improve their PostgreSQL scaling strategies, while developers can learn how to design more scalable database architectures

Key Insight

💡 Scaling PostgreSQL without microservices is possible using sharding, which can improve performance and reduce latency

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🚀 Scale PostgreSQL to 480 shards without microservices! 💡 Learn from Notion's experience and apply these lessons to your own database scaling challenges #PostgreSQL #Scaling #Database

Key Takeaways

Learn how Notion scaled PostgreSQL to 480 shards without microservices, and apply these lessons to your own database scaling challenges

Full Article

I’ve been using Notion to manage my projects for a long time—it’s a faithful friend in my workflow....
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