Prometheus self-monitoring

[huihui...@gmail.com]

Hi,

I want to know that is there any program for prometheus self-monitoring? Or any HA plan?

Thanks!

[Nicholas Capo]

Generally speaking, the way to do HA is to run two or more identical Prometheus servers, and have them scrape every target, including each other.
This way you get `up` alerts if either server goes down.

For my machines, I configure each server to scrape local targets and every other server, even the ones in other datacenters.
Thus, I have multi-way meta-monitoring, with HA in each datacenter.

Finally, I have configured at least two Alertmanagers in each datacenter, that all join into single large mesh. Each Prometheus discovers all the Alertmanagers for sending notifications.

Hope that helps.

Nicholas

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[Nicholas Capo]

See also: https://www.robustperception.io/high-availability-prometheus-alerting-and-notification/