Netflix's Simian Army: Testing Cloud Reliability Through Intentional Failures
By
rognjen
Hand-rolled, kettle-boiled, baked to perfection. Worth every minute at the bakery.
Summary
Netflix discusses their cloud infrastructure reliability strategy called the "Simian Army" - a suite of tools designed to test and improve system resilience by intentionally causing failures in their cloud environment. The approach involves creating controlled chaos to ensure the system can withstand real-world failures, moving beyond traditional redundancy to proactive failure testing.
Key quotes
· 3 pulledThe cloud is all about redundancy and fault-tolerance. Since no single component can guarantee 100% uptime (and even the most expensive hardware eventually fails), we have to design a cloud architecture where individual components can fail without affecting the availability of the entire system.
Recently, we've been focusing on ways to improve availability and reliability and wanted to share some of our progress and thinking.
We've talked a bit in the past about our move to the cloud, and John shared some of our lessons learned in going through that transition in a previous post.
You might also wanna read
Why average CPU utilization is a misleading metric for cloud-native applications
The article discusses the pitfalls of relying on average CPU utilization metrics in cloud-native environments, particularly in Kubernetes. I
![](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect width="100" height="100" rx="12" fill="%23002b36"/><text x="50" y="68" font-family="system-ui,sans-serif" font-size="48" font-weight="bold" fill="%23cb4b16" text-anchor="middle">JT</text></svg>)
theocharis.dev·9d ago
Agumbe: AI-Powered Workspace Platform for Kubernetes Application Development
Agumbe is a platform that provides AI-powered workspaces for building and running applications on Kubernetes. It helps teams go from idea to
Product Hunt·2mo agoTowlion: Self-Hosted Micro-PaaS for GitHub-Based Application Deployment
Towlion is a self-hosted micro-PaaS (Platform as a Service) that enables developers to deploy full web applications directly from GitHub to
aws-doctor: Open-Source CLI Tool for AWS Security, Cost, and Best Practices Auditing
aws-doctor is an open-source command-line tool written in Golang that performs comprehensive health checks on AWS accounts. It audits securi
github.com·4mo ago
Debugging Envoy Load Balancer Latency with eBPF Zero-Code Instrumentation
The article describes a technical solution for debugging an Envoy Network Load Balancer using eBPF (Extended Berkeley Packet Filter) for zer
Wozz: Kubernetes Cost Optimization Tool for Preventing Resource Waste
Wozz is a Kubernetes cost optimization tool that helps engineering teams reduce cloud spending through two main approaches: a PR Cost Linter
github.com·5mo ago