Lab
A Cloud Guru

Advanced Prometheus Queries

The Prometheus Query Language (PromQL) provides a variety of tools that enable you to transform your raw metric data into useful and actionable information. In this lab, you will have the opportunity to explore some advanced features of Prometheus queries as you build queries to solve slightly complex problems.

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Path Info

Level

Intermediate

Duration

1h 0m

Published

Jun 12, 2020

Challenge

Write a Query to Determine Which Instances Have High CPU Utilization
1. Access the Prometheus expression browser in your web browser:
```
http://<PROMETHEUS_SERVER_PUBLIC_IP>:9090
```
2. Run a query to add the CPU usage in the system and user modes for each instance. Then, filter the results to only instances where the combined number of CPU seconds is more than 10000:
```
(node_cpu_seconds_total{mode="system"} + ignoring(mode) node_cpu_seconds_total{mode="user"}) > 10000
```
3. Log in to the Prometheus server and open the output file:
```
vi /home/cloud_user/report.md
```
Challenge

Get the Per-Second Rate of Increase in HTTP Request Duration for All Instances
1. Run a query from the Prometheus expression browser:
```
rate(http_request_duration_seconds_sum[5m])
```
2. Copy the output, including the element data and values.
3. On the Prometheus server, open the output file in a terminal:
```
vi /home/cloud_user/report.md
```
4. Paste in the data obtained using the query at the end of the file.

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

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