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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.
Once upon a time, you could roll your own of this using `tup` which might have my favorite "how it works" in the readme:
How is it so awesome?
In a typical build system, the dependency arrows go down. Although this is the way they would naturally go due to gravity, it is unfortunately also where the enemy's gate is. This makes it very inefficient and unfriendly. In tup, the arrows go up. This is obviously true because it rhymes. See how the dependencies differ in make and tup:
[ Make vs. Tup ]
See the difference? The arrows go up. This makes it very fast.
https://gittup.org/tup/
Also has a whitepaper: https://gittup.org/tup/build_system_rules_and_algorithms.pdf