# Someone Told Me ‘Just Add Cache’, Here’s What Actually Happened
2 min read
We’re running an application with multiple instances on Kubernetes, and like everyone else who has done horizontal scaling, we have Redis as a shared component.
We’re running an application with multiple instances on Kubernetes, and like everyone else who has done horizontal scaling, we have Redis as a shared component.
This issue is rampant in Node.js, Go, and Python — basically anywhere you’re not using a meta-framework like Java Spring Boot or Python Django.