Amazon DynamoDB data modeling for Multi-tenancy – Part 3

This article is the third part of a series on designing a multi-tenant DynamoDB data model for an issue tracking application, focusing on validation, monitoring, and extensibility.

• Key validation approaches include:
  • Distributed load testing with multiple active tenants
  • Introducing "noisy neighbor" scenarios
  • Testing tenant onboarding, backup, and portability
• Monitoring strategies involve:
• Using CloudWatch Contributor Insights
• Tracking metrics like most accessed and throttled keys
• Creating alarms for tenant performance anomalies
• Tenant isolation testing is critical, including:
• Preventing cross-tenant data access
• Verifying IAM credential restrictions
• Testing various access scenarios
• Data model extensibility options:
• Overload existing Global Secondary Indexes
• Create additional GSIs
• Add new tables for new entities

The goal is to create a scalable, secure, and flexible DynamoDB data model that can grow with the application while maintaining strong tenant isolation.