Scaling Your SaaS: Infrastructure Best Practices

As your SaaS grows, you'll need to scale your infrastructure. Here's how to do it right.

Database Optimization

Connection Pooling

Use connection pooling to manage database connections efficiently. Tools like PgBouncer can help.

// Example: Using connection pooling with Drizzle
import { drizzle } from 'drizzle-orm/postgres-js';
import postgres from 'postgres';

const client = postgres(process.env.DATABASE_URL!, { max: 10 });
const db = drizzle(client);

Caching Strategy

Implement multi-layer caching:

1. Browser caching for static assets
2. CDN caching for global distribution
3. Redis caching for frequently accessed data

Load Balancing

Distribute traffic across multiple servers to handle increased load and provide redundancy.

Monitoring & Observability

Track these key metrics:

• Response times
• Error rates
• Database query performance
• Memory usage
• CPU utilization

Horizontal Scaling

Design your application to scale horizontally by adding more servers rather than upgrading existing ones.

Stateless Design

Ensure your application doesn't store session state on individual servers. Use Redis or a database for session management.

Conclusion

Scaling is an ongoing process. Start with good fundamentals and iterate as you grow. Monitor your metrics and optimize bottlenecks as they appear.