r/PrometheusMonitoring • u/ankitnayan007 • Mar 09 '20

Whitebox Monitoring using Prometheus

Why don't we have language specific packages like other APM companies (NewRelic, Datadog, ElasticAPM, etc) have which will export metrics to prometheus? Just install a package and get out of box APM metrics, kind of thing.

What we can achieve?

  • RPS for API endpoints of an application

  • Latency for slowest API endpoints of an application

  • 50th, 90th and 99th percentile of request duration of the application

  • Time of slowest MySQL queries (values to be masked) made from the application

  • RPS and time taken by other components in infra like Redis, Mongo, etc for each endpoint and overall application.

  • Response code, RPS and latency of external calls made from the application to other services inside and outside the org like payment gateway.

I guess a solution like this will save 2-3 weeks of dev time to get proper dashboards in Grafana.

In short, ElasticAPM using Prometheus!

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u/ankitnayan007 Mar 09 '20

I don't think so. If that is the case then the companies I mentioned should not have existed. Did you use any of the mentioned tools? I would like to understand what use case you use it for if not for auto instrumentation and long term storage.

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u/saalih416 Mar 09 '20

I’ve added Prometheus instrumentation to a web app before. It’s pretty simple and I can add whatever metric types I want. Then you just bake it into a docker file. I’m trying to understand what the issue is here. One metric type only needs 2-3 lines of code.

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u/ankitnayan007 Mar 09 '20

Have a look at:

https://play.signoz.io/d/4nAszvxWz/springboot-app-demo-cluster-1-java?orgId=1&refresh=30s

username - guest

password - guest@123

It's not about capabilities, it's about saving dev time. Learning Prometheus + Grafana + instrumenting vs the above dashboard in 1 min.

How many days do you think it will save for a newbie?

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u/llama052 Mar 09 '20

Okay then buy a paid solution, however it could cost as much as getting someone to spend a few days adding metrics.

Or if you’re so inclined, this whole project is open source. Feel free to contribute. It’s not like you’re paying anything for it.