[Feature] Support for "Node Graph" panel

[hyberdk]

Hi all,

I was wondering if there are support for the new Node Graph panel plugin in the clickhouse datasource?

This is the one that I am talking about:
https://grafana.com/docs/grafana/latest/panels/visualizations/node-graph/

As far as I can see, there needs to be some special data frames returned. If there already are support, then do anyone have a working installation running or can you point to some better documentation than what is on the grafana.com docs?

Thanks a lot.

Esben

[Slach]

@hyberdk thanks a lot for your reporting
I will try add this functionality to next release

[hyberdk]

@Slach that would be awesome, let me know if you need someone to test or something like that..

Unfortunately the languages you use in this project is not really my flavor, so help coding is not realistic ;-)

[lmangani]

Surprisingly, this actually works without any modifications in Grafana 8.1.0

Node Graph can be fed using two different table formatted (A,B) queries with the following mandatory fields in each:

• nodes
  • id (distinct, unique)
  • title
  • mainStat (optional float metric)
• edges
  • id (ie: concat(source,target))
  • source
  • target
  • mainStat (optional float metric)

Note all the objects in source + target edges must exist as node ids for the panel to work!

The full list of optional parameters is available here

[iamshreeram]

Hi @lmangani, I hope you're doing well.

Does this setup without requiring any plugins?
We're currently publishing OpenTelemetry metrics to ClickHouse, and we're trying to view the data in node graph. However, it appears that the node graph isn't displaying any information, even though the query itself is returning the expected results.

I've attached a screenshot for your reference. I would really appreciate any assistance you can provide. Thank you!

[lmangani]

@iamshreeram at the time of writing it did but Grafana is ever changing so they probably broke this capability. Which version are you using? If you want something to do this nicely out of the box with ClickHouse check our project qryn which does this (and much more) natively and supports the full tempo API 😉