On Sun 22 Nov 2020, 17:01 Kaloyan Simitchiyski, <
[email protected]> wrote:

> Hi folks,
>
> I'm using the jmx-exporter to collect metrics from Kafka brokers. However,
> I'm having a bit of trouble with a particular regex pattern:
>
> - pattern: kafka.network<type=RequestMetrics, name=ErrorsPerSec,
> request=(.+), error=(^(?!NONE$).*)><>Count
>     name: kafka_request_errors_total
>     type: COUNTER
>     cache: true
>     labels:
>         request: "$1"
>         error: "$2"
>
> I want to collect every sample except in the cases when the error
> attribute is NONE. The rule does not seem to work as the jmx-exporter stops
> returning the metric altogether. If I change the pattern to *error=(.+) *it
> works just fine.
> Have you guys done something similar? Is something wrong with my approach?
>

The ^ and $ are anchoring to the whole line, so that can never match. Try
without them.

Brian

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