Last week I have a chance to perform Redis cluster migration. Our Redis cluster contains 6 high memory VMs. At peak, it has 800 request/second. In this article I would like to explain how we migrate Redis cluster with zero downtime as well as lesson learned I’ve gathered.

Here’s the quick post. I wrote this to remind myself, the working setup I enjoyed most. The ultimate arrangement for immense productivity, 12h+ in front of computer. Do and learn much things.