Redis really is a fundamental building block for designing distributed systems these days. I was kind of surprised, but all these examples exist independently in the Zapier codebase as well (all backed by Redis).

I've been meaning to open source our timeseries implementation for a while now, it is very similar to the linked article but uses a "{key}:YYYY:MM:DD:hh:mm:ss" pattern on hashes where you pick your stored granularity and TTL for each time unit. For example: store second granularity "{key}:YYYY:MM:DD:hh:mm": {0-60: count} for 8 hours, minute granularity "{key}:YYYY:MM:DD:hh": {0-60: count} for 24 hours, hour granularity "{key}:YYYY:MM:DD": {0-24: count} for 3 days, the rest forever. Very similar to https://github.com/jimeh/redistat or other implementations.

Fun!