On 23 May 10:20, Julius Volz wrote:
> The normal case in the situation where an exporter cannot reach a backend
> is to just not return the backend metrics at all, but expose a
> <mybackend>_up metric by the exporter that is set to 1 if the backend is
> reachable and 0 if it's down. For example, "haproxy_up" in the HAProxy
> Exporter or "mysql_up" in the MySQLd Exporter. Then you can alert on that.
>
> If you really would like to keep exposing the backend time series even if
> you cannot gather data for them, then you could set them to NaN
> ("float('nan')" in Python).
Note that you need to implement a collector to not expose the data ; not update
a
gauge.
>
> On Sat, May 23, 2020 at 2:12 AM Humberto Ramos Costa <[email protected]>
> wrote:
>
> > I'm using the Prometheus python lib to create a exporter.
> > This exporter gets data from another apllication running on the same
> > machine.
> > There are some situations where i can't get the data and i woul like to
> > set the metrics (Gauge in this case) with nodata (like None in python).
> >
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> > .
> >
>
>
> --
> Julius Volz
> PromLabs - promlabs.com
>
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--
Julien Pivotto
@roidelapluie
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