Is exporters' data persisted ?

[Amine]

Hello,

I know that exporters can be different but let's take for example the node-exporter and cAdvisor.

I would like to know if their collected metrics are persisted on disk, and if so, do they have a retention time?

I ony found some answers on Github but not yet an official information.

Thank you,

Amine

[Stuart Clark]

On 2020-02-25 15:26, Amine wrote:
> Hello,
>
> I know that exporters can be different but let's take for example the
> node-exporter and cAdvisor.
> I would like to know if their collected metrics are persisted on disk,
> and if so, do they have a retention time?
>

> I ony found some answers on Github [1]but not yet an official
> information.
>

Exporters return the current data when polled, so don't store anything
themselves.

The data is persisted within the Prometheus TSDB once scraped.

--
Stuart Clark