How AWS Cloud Customers Are Using Local Zones for Edge Computing

Production testing with dark canaries

Back in 2013, one of our large backend services wanted support in Rest.li for dark canaries. The service, at the time, involved duplicating requests from one host machine and sending it to another host machine. This was added via a Python tool to populate the host-to-host mapping in Apache ZooKeeper along with a filter to read this mapping and multiply traffic.

3 Years of Kubernetes in Production–Here’s What We Learned

We started out building our first Kubernetes cluster in 2017, version 1.9.4. We had two clusters, one that ran on bare-metal RHEL VMs, and another that ran on AWS EC2. Today, our Kubernetes infrastructure fleet consists of over 400 virtual machines spread across multiple data-centres.

Evernote’s CEO on the company’s long, tricky journey to fix itself