[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
[email protected]

[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 ***@***.***> 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? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#89 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABYNXEZ25IRE6ESTFXCTORLSICHCXANCNFSM4RV5JFGQ> .