Graphite has been obsolete for 5+ years. There are commercial products with unlimited scaling, great UI, alerting and a hundreds things out of the box (see datadog and competitors).
I was on Roy's team at this time. I am not one of the four mentioned in the link, but I definitely know exactly who is being talked about. I wanted to comment that these four were considered outliers even by Netflix standards for being very high performing. So bear in mind the example is an extreme one.
Yeah, and the key difference is simple: The 100x engineers in Netflix just understood that file-based lookup for key-value pairs won't scale for OLAP-like workload on time series, and of course they possessed the sheer capability of implementing the right technology from ground up.
