topic Re: Node.js Event Loop metrics to Dashboards V2 in DQL

Add Node.js Event Loop Metrics to Dashboards V2 Using DQL

mouru — Thu, 18 Dec 2025 14:29:27 GMT

Hi, I'm trying to get timeseries tiles about common Node.js event loop metrics to be viewed in Dashboards V2, but the tile seems to show false values ( around 5% avg.) When the host event loop dashboard shows values around 5% to 66% utilization.

Re: Node.js Event Loop metrics to Dashboards V2

Taylor-Sanchez — Wed, 22 May 2024 15:22:33 GMT

Hi @mouru ,

Your image seems to only show the result of your tile. It also looks as though you were using some kind of a query to create this dashboard - if so, what was the query that you used to create the timeseries? If not, how did you create this tile?

Re: Node.js Event Loop metrics to Dashboards V2

mouru — Thu, 23 May 2024 05:32:24 GMT

This timeseries is straight from Data Explorer, which shows the Event Loop Utiliziation correctly, I just pressed the Open with Dashboards.

The query:

timeseries utilization=avg(dt.runtime.nodejs.eventloop.utilization), by: { dt.entity.process_group_instance } , filter: { in(dt.entity.process_group_instance, classicEntitySelector("type(process_group_instance),entityName.equals(process_name)")) }

Re: Node.js Event Loop metrics to Dashboards V2

mouru — Wed, 19 Feb 2025 09:26:34 GMT

Hi, now that most of the NodeJS metrics are available in Grail, when will the tick frequency and tick duration made available in Grail?

builtin:tech.nodejs.uvLoop.totalTime

builtin:tech.nodejs.uvLoop.count

It seems to be not available at all here:

https://docs.dynatrace.com/docs/analyze-explore-automate/metrics/built-in-metrics-on-grail#node-js

Re: Node.js Event Loop metrics to Dashboards V2

IzabelaRokita — Thu, 18 Dec 2025 14:29:06 GMT

Hey @mouru ,
I just wanted to check in and see if you still need help with this. If so, I’d be happy to look into it for you! 😊
Please let me know what works best for you.

Re: Node.js Event Loop metrics to Dashboards V2

mouru — Mon, 09 Feb 2026 08:23:03 GMT

Hi, how that the nodejs metrics are available in Grail I am more than pleased, this is resolved.