[receiver/prometheusremotewritereceiver]: Deduplicate Prometheus HA Samples

[cabrinha]

Component(s)

receiver/prometheusremotewrite

Describe the issue you're reporting

Does the https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/prometheusremotewritereceiver deduplicate samples received from Prometheus HA agents? https://prometheus-operator.dev/docs/platform/high-availability/

I believe that scrapes and therefore samples are duplicated in HA mode and I'm wondering if there is a mechanism in this receiver to catch and de-duplicate those samples.

[github-actions]

Pinging code owners:

• receiver/prometheusremotewrite: @dashpole @ArthurSens

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[ArthurSens]

Hi @cabrinha, thanks for the interest in using this receiver 🙂

No, right now we don't do deduplication for HA Prometheus. To be honest, the component is not ready at all for production usage. The component is still under development, and we're currently focused on implementing the basic features to consider the component "Alpha".

This is a good feature-request though!, cc @perebaj, let's keep this in mind once promoting the component to "Beta"!