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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
> his father started working with programmable logic controllers (PLCs), and his interest in these controllers led him to purchase a Z80 processor board and start programming on it
In the PLC world there is a notion of "tags". These are values pushed or poked by PLCs with some kind of external (networked) access. They are essentially network-wide global variables. If you think about it for a little while this looks like key+value store. There are some common operations with tags: on/off, counters, bit fields, along with static/updating values. There is a notion that if a tag hasn't been updated in a while it is "stale" or unreliable.
Although my POC deployment of RKVDNS (DNS Proxy for Redis https://github.com/m3047/rkvdns/) revolves around SecOps / DevOps / DevSecOps, my horizon is SCADA and rationalizing the federation (edge) vs centralization (cloud) dilemma for observables, leveraging the reality that these days even (Purdue) Level 1 has DNS.