On Wed, 21 Oct 2020 at 14:32, Jhanssen Fávaro <[email protected]>
wrote:
>
> Hi folks,
> I am brand new in prometheus world, and I have an understanding/basic
> question:
>
> Why from a rule file I can not retrieve the {{ $labels.instance }}
> variable ?
>
There is no instance label, as you aggregated it away with the sum(). If
you want to have that label available you would mention it in the by
clause, or use without and mention only the labels you wanted to remove.
Brian
>
> Sample Kafka Alert:
> - alert: Under_Replicated_Partition_Count
> expr: sum(kafka_server_replicamanager_underreplicatedpartitions)
> by(env) > 0
> for: 1m
> labels:
> severity: critical
> oid: "1.3.6.1.4.1.XXXX.15.1.2.3.1"
> * instance: "{{ $labels.service_name }}"*
> annotations:
> summary: 'Kafka {{ $labels.service_name }}: {{ $value }} under
> replicated partitons'
> description: 'Under-replicated partitions means that one or more
> replicas are not available. This is usually because a broker is down.
> Restart the broker, and check for errors in the logs.'
>
> This bold line is same as anything... I've tried already in the
> annotation/description section, also but no look..
>
> Any ideas or how wold I managed to get this done ?
>
>
> Best regards!
> Jhanssen
>
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>
--
Brian Brazil
www.robustperception.io
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