On 23 Apr 13:20, Jared Bischof wrote:
> I have a question about using the labels from one metric to query for the
> presence/absence of another metric.
>
> For example, I have some nodes that (when they are online) emit this metric:
>
> up{name="node1"} 1
> up{name="node2"} 1
>
> At the same time, I am propagating cadvisor metrics from these nodes:
>
> container_last_seen{name="grafana", node="node1"} 1587672314
> container_last_seen{name="fluentd", node="node1"} 1587672284
> container_last_seen{name="grafana", node="node2"} 1587672251
>
> In this case, I would like to create an alert that triggers because "node2"
> is up but the container_last_seen metric is absent for grafana on node2. Is
> this possible to do?
Can you try something along:
up{job="node"} == 1 unless on (instance) group_right()
container_last_seen{name="grafana"}
>
> Thanks.
>
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--
(o- Julien Pivotto
//\ Open-Source Consultant
V_/_ Inuits - https://www.inuits.eu
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