How ktown4u built a custom auto scaling architecture using an Amazon Aurora mixed-configuration cluster to respond to sudden traffic spikes

This article discusses how the e-commerce company ktown4u built a custom auto-scaling architecture using an Amazon Aurora mixed-configuration cluster to handle sudden traffic spikes without service disruptions.

Specifically, the article covers:

• The challenges ktown4u faced with unpredictable traffic spikes and limitations in Aurora Auto Scaling
• The idea of using an Aurora Serverless v2 read-only instance alongside provisioned instances to handle traffic bursts temporarily
• The architecture of Aurora hybrid (mixed-configuration) clusters with Serverless v2 instances
• Implementing high-resolution custom metrics and leveraging Route 53 weighted routing to dynamically direct traffic
• Configuring custom auto-scaling policies based on provisioned instance CPU usage
• The performance, reliability, and cost benefits observed with this architecture
• Conclusion highlighting the advantages of this solution