Two or more prometheus servers using one exporter binded to a port

[Thomas Will]

Hello experts,

Can two or more Prometheus servers scrape the same port binded by an exporter? Will there be any performance issue if done?

Cheers,

Thomas Will

[Brian Brazil]

On Wed, 27 May 2020 at 22:17, Thomas Will <thomasw...@gmail.com> wrote:

Hello experts,

Can two or more Prometheus servers scrape the same port binded by an exporter? Will there be any performance issue if done?

That's generally no problem, however there are rare exceptions like SNMP as some network devices just don't have the CPU power to handle concurrent walks.

--

Brian Brazil

www.robustperception.io

[Thomas Will]

Thanks, Brian. You are doing a great job. Keep it up!!

[Brian Brazil]

On Wed, 27 May 2020 at 22:24, Thomas Will <thomasw...@gmail.com> wrote:

Thanks, Brian. You are doing a great job. Keep it up!!

Thanks. I should also add that we do have some logic in the scrape scheduling to probabilistically reduce the chances that two Prometheus servers will scrape at the same time, though overlaps can of course happen - partially as the scrape duration tends towards the scrape interval.

Brian

 

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Brian Brazil

www.robustperception.io

[Julien Pivotto]

On 27 May 22:35, Brian Brazil wrote:
> On Wed, 27 May 2020 at 22:24, Thomas Will <thomasw...@gmail.com> wrote:
>
> > Thanks, Brian. You are doing a great job. Keep it up!!
> >
>
> Thanks. I should also add that we do have some logic in the scrape
> scheduling to probabilistically reduce the chances that two Prometheus
> servers will scrape at the same time, though overlaps can of course happen
> - partially as the scrape duration tends towards the scrape interval.

(since Prometheus 2.9.0)

>
> Brian
>
>
>
> >
> > On Thursday, May 28, 2020 at 2:51:46 AM UTC+5:30, Brian Brazil wrote:
> >>
> >> On Wed, 27 May 2020 at 22:17, Thomas Will <thomasw...@gmail.com> wrote:
> >>
> >>> Hello experts,
> >>>
> >>> Can two or more Prometheus servers scrape the same port binded by an
> >>> exporter? Will there be any performance issue if done?
> >>>
> >>
> >> That's generally no problem, however there are rare exceptions like SNMP
> >> as some network devices just don't have the CPU power to handle concurrent
> >> walks.
> >>
> >> --
> >> Brian Brazil
> >> www.robustperception.io
> >>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Prometheus Users" group.
> > To unsubscribe from this group and stop receiving emails from it, send an
> > email to prometheus-use...@googlegroups.com.
> > To view this discussion on the web visit
> > https://groups.google.com/d/msgid/prometheus-users/3cd0fb17-2d1b-46f6-9885-802e53de0f9a%40googlegroups.com

> > <https://groups.google.com/d/msgid/prometheus-users/3cd0fb17-2d1b-46f6-9885-802e53de0f9a%40googlegroups.com?utm_medium=email&utm_source=footer>
> > .

> >
>
>
> --
> Brian Brazil
> www.robustperception.io
>
> --
> You received this message because you are subscribed to the Google Groups "Prometheus Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to prometheus-use...@googlegroups.com.

> To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/CAHJKeLoKQY%3D5Qp9WbLeS96EVz4BrAq%2B%2B7fw55LMOqRYxA5mqRw%40mail.gmail.com.

--
Julien Pivotto
@roidelapluie

[Sally Lehman]

Anecdotally, I do this for HA, for a year now, and have had no conflicts that I've discerned thus far. 

[Thomas Will]

Thanks all for replying.