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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.
TANGENT: protobuf marshal/unmarshal is fast and has many other good attributes. Looking at their docs I don't see C bindings. I used protobuf with C in the past but I think a co-worker wrote C bindings himself for our project.
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