Monitoring Linux Host Metrics with Prometheus | Node Exporter (Setup, Scrape, Query, Grafana)

Prometheus Monitoring with Julius | PromLabs

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In this video, I show you how you can use the Prometheus Node Exporter to monitor Linux (or Unix) host metrics. We first download and run the Node Exporter and then we monitor it with Prometheus. Then, we explore some of the available metrics in Prometheus and show how to import an exhaustive Node Exporter dashboard into Grafana.
Check my Prometheus training courses if you want to learn Prometheus in a structured way from the ground up:
training.promlabs.com/
Chapters:
00:00 Introduction
00:53 Downloading & Unpacking the Node Exporter
01:51 Node Exporter Command-Line Flags
03:48 Running the Node Exporter
04:04 Inspecting the Node Exporter's /metrics Endpoint
04:51 Scraping the Node Exporter with Prometheus
05:50 Verifying Successful Target Scrapes
06:05 Querying Node Exporter Metrics (CPU & Network Usage)
08:24 Showing Host Metrics in Grafana
09:47 Outro & PromLabs Trainings
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30 июл 2024

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Комментарии : 10

@rafainfernal Год назад

Great tutorial

@gouravrelhan7372 9 месяцев назад

Thank you so much

@Jam-ht2ky Год назад

Thank you for the tutorial, you are definitely the best fit to explain Prometheus & Grafana. Thank you simplifying soo much the explanation

@PromLabs Год назад

Wow, thank you so much for the compliment, I'm so glad you liked it! :)

@FurqanMrafiq 6 месяцев назад

Hi Julius ! Thanks for amazing videos. I'm doing a project for my postgraduate in which I've install minikube and running a docker container based service on my local host 3001. The service is accessible through web browser and perfectly working. I want to enable this service monitoring enable at Prometheus but state shows down at localhost:9090/target even though ive mentioned localhot:3001 as my target under scrape configs. I'm pretty confused what to do ? should I enable any other option ? please guide ?

@user-jj1un1jr8w 5 месяцев назад

Hi Julis, I'm having trouble fetching metrics from the target host RHEL 8. I've installed the Node Exporter on RHEL and it's running fine. I've verified the metrics using the navigator, and they seem to be working. However, when I declared the host from my Ubuntu server to Prometheus, the targets always show as down, with no host detected. (no rout )

@PromLabs 5 месяцев назад

Hi! For specific scenario support questions like that, it's usually better to reach out to one of the public community channels (for example, the users mailing list is great for getting competent answers from people). See prometheus.io/community/

@jamel056 2 месяца назад

hello Julius, Thanks for this great explaining. I actually have a problem when scrape any port except the main port for prometheus (9090), for example: port 9100 for node-exporter or any other port and it always has down state. could you please tell me how could i fix this problem

@PromLabs 2 месяца назад

Not sure what the problem is here if you checked that the network connectivity from Prometheus to the other process works and that the port is specific in the target. But generally it's a good idea to ask with more details on the users mailing list (see prometheus.io/community/).