# Prometheus

URL: https://donedeploy.com/technologies/prometheus/

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Questions

## Prometheus: frequently asked

How long can Prometheus keep data?

It can keep weeks or months on local disk depending on volume. For longer retention or many clusters, we add remote storage such as Thanos or Grafana Mimir.

How do we avoid alert fatigue?

Alert on user-facing symptoms, not every metric. Each alert should need action and have a runbook; the rest belong on dashboards.

Running Prometheus, or deciding whether to? Tell us what you have; the first consultation is free.

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