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by valyala 2147 days ago
The following time series databases are popular right now:

* ClickHouse (this is a general-purpose OLAP database, but it is easy to adapt it to time series workloads)

* InfluxDB

* TimescaleDB

* M3DB

* Cortex

* VictoriaMetrics

The last three of these TSDBs support PromQL query language - the most practical query language for typical time series queries [1]. So I'd recommend starting from learning PromQL and then evaluating time series databases from the list above.

[1] https://medium.com/@valyala/promql-tutorial-for-beginners-9a...