On Thursday, 17 September 2020 04:46:21 UTC+1, Jeivardan wrote:
>
> In my system I to record every state change of a variable can prometheus
> support this or promethus only save sample data?
>
>
Prometheus samples data periodically - this is called "scraping". You can
configure the scrape interval, but you can only provide one data point per
timeseries per scrape.
This is fundamental to prometheus' design. Prometheus contains a
timeseries database (TSDB), but you don't have direct write access to that
TSDB.
There are other TSDB's that do let you write ("push") arbitrary data.
Examples include TimescaleDB, InfluxDB, VictoriaMetrics.
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