TTL

TTL Examples

// Redis TTL
redis.set("product:123", product, Duration.ofMinutes(30));
redis.set("session:abc", session, Duration.ofHours(2));
redis.set("config:global", config, Duration.ofDays(1));

TTL Guidelines

Data Type	TTL
User session	30 min - 2 hours
Product data	5 - 30 min
Static config	1 - 24 hours
Rate limit counter	1 minute

Key Points

• Understanding Time-To-Live (TTL) is essential for production systems
• Always consider scalability and maintainability
• Test thoroughly before deploying to production
• Monitor performance and set up alerting

Common Patterns

1. Validation: Always validate input at the boundary
2. Error Handling: Use structured error responses
3. Logging: Log key events for debugging
4. Testing: Unit, integration, and load tests
5. Documentation: Keep docs updated with code changes

Key Principles

1. Follow SOLID principles
2. Write clean, readable code
3. Test thoroughly
4. Document decisions
5. Monitor in production

Implementation

• Start simple, refactor as needed
• Use established patterns
• Consider trade-offs
• Review with peers

Continuous Improvement

• Learn from incidents
• Update documentation
• Share knowledge
• Mentor others

Key Points

• Understanding Time-To-Live (TTL) is essential for production systems
• Always consider scalability and maintainability
• Test thoroughly before deploying to production
• Monitor performance and set up alerting

Common Patterns

1. Validation: Always validate input at the boundary
2. Error Handling: Use structured error responses
3. Logging: Log key events for debugging
4. Testing: Unit, integration, and load tests
5. Documentation: Keep docs updated with code changes