The federation scrapes themselves also generate "up" metrics. So e.g. if
your federation scrape config is:
- job_name: federate
honor_labels: true
metrics_path: '/federate'
static_configs:
- targets:
- other-prometheus:9090
Then you will get up{job="federate", instance="other-prometheus:9090"} set
to 0 or 1 based on whether the federation scrape failed or succeeded.
honor_labels doesn't prevent this, the only time it makes things behave
differently is when target labels of a scrape target are already present in
the scraped metrics, in which case honor_labels keeps the labels sent by
the target instead of overwriting them with the target labels.
On Wed, Apr 29, 2020 at 6:59 PM Venkata Sandeep <[email protected]>
wrote:
> Hi All,
>
> We have multiple prometheus instances, each scraping the metrics of
> different services
> We have a federated prometheus to scrape metrics from these multiple
> prometheus instances (with honor_labels as true).
>
> If one of the prometheus instance is down, federated prometheus does n't
> have any metrics of the actual service. So it is becoming hard to
> understand if the prometheus instance is down or if the actual service is
> down.
>
> How to get the UP metrics of prometheus instance into federated prometheus?
>
> Thanks
> Sandeep
>
>
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