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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.
If you are interested in more information, then here is a link to the article where I describe implementation details of the first version of the engine. If you don't like technical articles, but you like code, then here is a source code.
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