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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.
No first-hand experience, but C++ is definitely a player. Check out John Lakos and bloomberg/bde. He was a force behind the improved allocators in C++11 and beyond. That repo I linked is a beast of a codebase (:
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