How do you name the results of a query?

[Robin Pharaoh]

If I query:

sum by (status) (some query)

the result is always:

{status="200"}            v1

{status="500"}            v2

...

How do I make the resulting value

200           v1

500           v2

...

This would be super helpful for grafana dashboards where a graph panel is showing a specific value by service name for example.

[Brian Candler]

How to process the results of a prometheus query in grafana is a grafana question.  See:

https://community.grafana.com/t/extract-labels-values-from-prometheus-metrics/2087/9

When you are using dashboard variables set by prometheus queries, you can also use regular expressions to capture values out of the labels.

[Robin Pharaoh]

Thank you for the response. I am looking into the grafana link you sent me, though I do think this is still a prometheus question.

If we are using the prometheus UI, we still see the element / value columns. And I know certain queries will return just a label for the element name, but I can't seem to figure out why they do.

another example is 

sum(max_over_time(http_server_requests_seconds_count{ status="200"}[30m:5m]))

which simply returns

{}          value

[Brian Candler]

Sure: some PromQL functions return no metric name and/or no labels.  That's how those functions operate.

For example, sum(metric) doesn't return any labels, because it's summing together all the timeseries with that particular metric.  Each individual metric, by definition, has a different set of labels.  The sum of those metrics has no identifying labels, since it combines all those metrics.

[Matthias Rampke]

The Prometheus UI is deliberately not a dashboard. Grafana already does that and much better than we could.

time series identifiers always have a structure like

name{label1="value1",label2="value2"}

with or without a name (both your examples to not have a name); with zero or more label-value pairs (your first example has one, the second example none).

/MR

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