topic Re: Referencing Dimensions value in calculations in Dashboards & Visualizations

How to reference dimensions value in calculations?

cortega — Fri, 02 Sep 2022 14:30:47 GMT

Hi,

I have a metric with 1 dimension containing an integer value.

I need to apply some calculation to the metric based on the dimension value.

The formula to apply to each Data Point would be sth like this:

metric_value*100/dimensionA_value

I have seen dimensions extensively used as filters but I was not able to find a way to reference the dimension value so that I can use it in a calculation like the one above.

Any idea, how could I accomplish that?

Thanks in advance

Cesar

Re: Referencing Dimensions value in calculations

ITWhisperer — Fri, 02 Sep 2022 09:43:54 GMT

Can you show where this dimension is coming from in your events?

Re: Referencing Dimensions value in calculations

cortega — Fri, 02 Sep 2022 10:04:09 GMT

Thanks for your reply.
I am getting this metric from a monitor configured in the signalfx-agent installed in my hosts.

Not sure I am properly replying to your question (not very skilled in Splunk/SignalFX yet)... if not, please let me know.

Re: Referencing Dimensions value in calculations

ITWhisperer — Fri, 02 Sep 2022 10:06:25 GMT

Can you share some of your sample events in a code block </> - depersonalised of course?

Re: Referencing Dimensions value in calculations

cortega — Fri, 02 Sep 2022 13:31:40 GMT

Hi!

Sorry, but still not sure where to get that information.

I see a "Events" tab in my Chart and in the Metric view... but both contain no data.

I just exported my metric Data Table to CSV just in case it helps to make things clearer (here are a couple of data points for reference:

provider_network_netmask	metric (sf_metric)	appcode	Plot Name	provider_network_name	Value Prefix	Value Suffix	Fri Sep 02 2022 12:54:40 GMT+0200 (Central European Summer Time)
16	neutron.provider_networks.ip_count	xxx	neutron.provider_networks.ip_count	network1			10
24	neutron.provider_networks.ip_count	xxx	neutron.provider_networks.ip_count	network2			2

Re: Referencing Dimensions value in calculations

ITWhisperer — Fri, 02 Sep 2022 15:22:08 GMT

From your chart, if you "open in search", then change the mode to verbose, the events tab will be populated with the events from your search.

From your search, is dimensionA_value present as a field? If not, where does this value comes from?