Context You can have more than a single Prometheus monitoring and ingesting the same metrics for redundancy. Cortex already does replication for redundancy, and it doesn’t make sense to ingest the same data twice. So in Cortex, we made sure we can dedupe the data we receive from HA Pairs of Prometheus. We do this via the following: Assume that there are two teams, each running their own Prometheus, monitoring different services. Let’s call the Prometheus T1 and T2. Now, if the teams are r...
