'Grafana panel query only pick up one value when using query variables from Prometheus

I have defined a query variable like enter image description here

When using this variable to build a panel query enter image description here

I tried to investigate the problem via query inspector, then I found that the query only pick up one value from the variable with the query string of "sum(kube_pod_container_resource_limits_cpu_cores{node=~"de1tst-78j9w-infra-46r7f"})" enter image description here

And because the host that the query picks up coincidentally doesn't contain the metric, so it shows "N/A".

I want the panel query collects all nodes metrics that the variable returns, how could I let the panel query as expected by specifying "node=~${workers}"?

prometheusgrafanapromqlprometheus-node-exporter


Solution 1:[1]

In Dashboard settings > Variables, set the following:

Hide               = empty
Multi-value        = enable
Include All option = enable

Use the "workers" picklist selector which will appear at the top of the dashboard to select the desired nodes or the "All" option.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Marcelo Ávila de Oliveira

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