[Question] Re-use of existing metrics for single test plan with multiple TG's

[winstondz]

I am having issues getting all the metrics in the grafana dashboard. Here is my current setup: Grafana (docker) v 7.1.5 Prometheus (docker) v2.21.0

I have an existing JMeter test plan which is structured as such: Test Plan | Reusable Test Fragments ----|Samplers | TG1 ----| Simple Controller --------|SamplerA |Prometheus Listener1 |TG2 ----|SimpleController1 --------|SamplerA ----|SimpleController2 --------|SamplerB --------|SamplerC |Prometheus Listener2

Prometheus Listener 1 and Prometheus Listener 2 are the exact same components (with the same metric names) defined for each TG

In Grafana, I see only the metrics related to Sampler A (I dont have additional filtering in the PROM query), but I dont see any from Samplers B and C. I am not sure whether I am using it the right way or if there's a better way to use it?

I am using api_count_total with the legend {{label}}

[johrstrom]

It's got to do with the internals of the prometheus library. Basically once you "register" a metric, you can't register another with the same name. This is why the 2nd listener is useless, it can't register anything.

I'd suggest just moving them to a single global listener outside of the thread groups if you can. Otherwise you'll have to rename the metrics in one of the listeners.

[sriram474]

Hi Jeff ohrstrom,

Do you have any plugins for the testng as well to extract the metrics from testng suite to prometheus db. Appreciate your reply.

Regards Ramakrishna sriram474@gmail.com

[johrstrom]

@sriram474 Not sure I follow. You want to pull the metrics from prometheus and put them into a csv so jmeter can read them?

[sriram474]

I am expecting the other way, like Just in case if we have any plugin like testng-prometheus-plugin and then pushes the required metrics to prometheus in order to view them in the grafana dashboard.

Regards Ramakrishna(RK)

Thanks & Regards

Ramakrishna.Telapolu,

On Mon, Sep 28, 2020 at 7:12 PM Jeff Ohrstrom notifications@github.com wrote:

@sriram474 https://github.com/sriram474 Not sure I follow. You want to pull the metrics from prometheus and put them into a csv so jmeter can read them?

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