-
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.
will reply here also in case anyone else wanted an answer. You could use the original C++ library with C++ or any language that interops with C++ (e.g. C#), so that's there for ya if you need
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.