Scripting NGINX for Overload Protection

I spoke at nginx.conf in September about how Shopify uses NGINX for handling flash sale load. tl;dr you can use Lua or nginScript to cache dynamic content and build a queueing system directly into your load balancers. We do this in a stateless way so load balancers don't need to synchronize. I also touched on our network/inter-DC routing setup and tools for debugging NGINX in production.

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Related talks:

• Xavier Denis on Intelligent Load Balancers
• Scott Francis on Building an HTTP Request Router With NGINX and Lua
• Florian Weingarten on Scaling Shopify's Multitenant Architecture Across Multiple Data Centres
• Simon Eskildsen on Shopify in Multiple Datacenters