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The DevOps 2.2 Toolkit
book

The DevOps 2.2 Toolkit

by Viktor Farcic
March 2018
Intermediate to advanced content levelIntermediate to advanced
360 pages
7h 52m
English
Packt Publishing
Content preview from The DevOps 2.2 Toolkit

Querying metrics from instrumented services

Let's open the Prometheus graph screen and explore different ways to query metrics scraped from the go-demo_main service.

open "http://$(docker-machine ip swarm-1)/monitor/graph" 

Please click the Graph tab, enter the query that follows, and click the Execute button

http_server_resp_time_sum / http_server_resp_time_count

We divided the summary of response times with the count of the requests. You'll notice that the output graph shows that the average value is close to zero. Feel free to hover over one of the lines and observe that the values are only a few milliseconds. The go-demo_main service pings itself periodically and the responses are very fast.

We should generate some slower responses since ...

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Publisher Resources

ISBN: 9781788991278Supplemental Content