HA setup for prometheus

I would like to understand what is the best option for setting up HA for prometheus ?

@kavinsethu I think your best option would be to implement thanos with prometheus for HA and also multi-cluster environment if needed.

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You could choose any setup like Prometheus + Thanos/VictoriaMetrics or Grafana Mimir. All of these stack is using long-term storage and they can deduplicate metrics from two or three prometheus replicas.