Building resilient multi-tenant systems with Amazon SQS fair queues

AWS introduced Amazon SQS fair queues, a new feature designed to mitigate the "noisy neighbor" problem in multi-tenant systems by dynamically managing message delivery across different tenants.

• Fair queues help maintain low message dwell times for all tenants, even when one tenant overwhelms the queue
• The feature automatically identifies and prioritizes messages from quieter tenants
• Requires adding a tenant identifier (MessageGroupId) to messages
• No changes needed in consumer code or application logic
• Provides new CloudWatch metrics to monitor queue fairness

By transparently managing message distribution, SQS fair queues improve system resilience and quality of service in multi-tenant architectures without requiring complex custom solutions.