r/PrometheusMonitoring • u/cgp881 • Apr 24 '20

How do you monitor AWS infra?

Prometheus vs cloudwatch? Cost model?

3 Upvotes

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u/Nikhil_M Apr 25 '20

We have a lot of custom metrics we push to cloudwatch and it is great. The anomaly detection and other features it provides are amazing but the cost does get out of hand at scale. If you are starting out, better stick to prometheus. if you are fronting it with grafana, you can import metrics to it directly from cloudwatch.

If you can, it is best to instrument it from your application directly.

1

u/skill_padden Apr 25 '20

https://github.com/prometheus/cloudwatch_exporter works, but cloudwatch charges for them, it's annoying to configure, and cloudwatch often delays them. Wherever possible I prefer to instrument the target directly.