node_exporter - change collection frequency/interval

[Hugo Cartigny]

Hi everyone, this is my first post here :)

How is it possible to change the default collection frequency/interval in node_exporter?

I don't even know what it is by default.

The Github repo is reaaaally not mentioning this at all, which is very annoying.

How is the interval defined by default? What controls it? I really don't understand.

Thanks in advance for your answers :)

[b.ca...@pobox.com]

> How is it possible to change the default collection frequency/interval in node_exporter?

There isn't one.  node_exporter only collects when scraped (make a http request to it).  If you don't scrape it, it doesn't collect anything.

If you're scraping it from prometheus, then it's controlled by scrape_interval in the scrape_config (job definition).  If not set there, then it falls back to the global scrape_interval, and if that's not set either, it defaults to 1 minute.

See: https://prometheus.io/docs/prometheus/latest/configuration/configuration/

[Hugo Cartigny]

Thank you very much!

[Julien Pivotto]

On 04 Dec 04:55, Hugo Cartigny wrote:
> Thank you very much!

https://github.com/prometheus/node_exporter#filtering-enabled-collectors

you can define multiple jobs and use http params:

- job_name: node
scrape_interval: 15s
params:
collect[]:
- arp
- bonding
- conntrack
- cpu
- entropy
- hwmon
- infiniband
- loadavg
- meminfo
- job_name: node_systemd
scrape_interval: 1m
params:
collect[]:
- systemd

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--
Julien Pivotto
@roidelapluie

[Julien Pivotto]

Sorry, it seems that I was not even answering your question.. please ignore my mail :)