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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.
AWS AppRunner could do more or less everything. You'd have to build a container image yourself, since AppRunner does not have C++ support for the "Code-based" service, but building a container really isn't more complex than installing that bare metal server. (Really, pick an OS, install dependencies, copy your code, start a service. That is all.)
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