What is Grafana used for?
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Quick Answer
Grafana is a visualization and dashboarding tool that queries data sources like Prometheus, Loki, and Elasticsearch to build panels, and can also alert on them.
Detailed Answer
It is data-source agnostic, so one pane of glass can combine metrics, logs, and traces. Dashboards use variables/templating for reuse across services and environments, and dashboards-as-code (JSON in Git) keeps them versioned. Grafana complements Prometheus rather than replacing it.
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Interview Tip
Note it is data-source agnostic and supports dashboards-as-code — a sign you manage observability like software.
grafanadashboardsvisualization