Handling checkout deadlocks during peak traffic is a critical challenge for enterprise Magento merchants. In this post, I’ll share how we tackled Magento checkout deadlocks for a major retailer facing severe infrastructure bottlenecks during traffic surges. This is a deep dive into the technical implementation, performance optimization, and infrastructure scaling strategies that helped us improve checkout speed, reduce latency, and maintain conversion rates under pressure.

The Problem: Deadlocks Crippling Checkout During Traffic Spikes

Our client, a large retailer running Adobe Commerce (Magento), experienced frequent checkout deadlocks during traffic surges. These deadlocks caused:

Increased checkout latency and timeouts

Poor user experience and abandoned carts