Canvas plugin using Standard option -> No value doesn't work

Grafana Dashboards
1
  • What Grafana version and what operating system are you using?
    “version”: “9.3.0-beta.1”
  • What are you trying to achieve?
    Using Canvas plugin with a metric that sometime is not available, display : “Double click to set field”

Try using Standard option → No value not work.

  • How are you trying to achieve it?
    Using: Standard option → No value not work to get NA value when the metric not exists

  • What happened?
    I see : “Double click to set field” instead of NA

  • What did you expect to happen?
    To get NA on the value of the not existed metric.

  • Can you copy/paste the configuration(s) that you are having problems with?
    I use override on the metric that not available all the time with standard option No value

  • Did you receive any errors in the Grafana UI or in related logs? If so, please tell us exactly what they were.
    No errors

  • Did you follow any online instructions? If so, what is the URL?
    I didn’t find accurate data in the confluence except for :
    Canvas | Grafana documentation

2

Hello,
Any update on this please ?
Is that supported or not ?

Regards,
Manal

3

I found this post in searching for a resolve for what seems to be the same issue.

Grafana v9.5.2 (cfcea75916)

When I select a field the box color updates and matches the metric value, but the box always reads “Field not found”. I’m not sure what I could be doing wrong.

4

Grafana v11.6 same issue.
Canvas plugin Standard option → No value not work
Is there a solution to this problem?

5

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->Modify your SQL query so it always returns the field (even if null) using COALESCE()
->In the Canvas panel, bind the field which displays “No Data” if the field value is null, otherwise shows the field value.

6

Thank you so much for your clear explanation and example! :folded_hands:
It makes perfect sense when using a SQL-based data source.

However, I’m currently using Zabbix as my data source, so unfortunately, I don’t have the ability to modify the query with COALESCE() or similar SQL functions.

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Do you happen to know if there’s a workaround for Zabbix data sources specifically? That would be incredibly helpful!

Thanks again for your support!