node.js resource monitoring app

For a while now I’ve been working on a node.js based tracker. This is basically a pixel that you attach to any website and it captures information about the visitors. With this development comes the (not small, not irrelevant) task of monitoring the app and the server to be able to define tests as “successful” or “in need of more testing”.
So, I have built a small piece of code that goes within the tracker server, and it repeatedly captures system information and stores it in a Redis database. Another script returns a set of graphs that feed from the Redis information and present the relevant numbers in a visual fashion. Continue reading