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When using the K6 Prometheus Remote Write Extension samples are being dropped under loads of 700TPS
No custom tags are being used and Prometheus doesn't appear to be under CPU or Memory stress
The same problem occurs if we remote write to Mimir.
k6 version
k6 = v0.38.0 extension = v0.0.2
OS
Windows
Docker version and image (if applicable)
No response
Steps to reproduce the problem
Simple K6 test using the K6 prometheus remote write extension.
import http from 'k6/http';
import { sleep } from 'k6';
export default function () {
let res1 = http.get('http://simple apache endpoint',);
sleep(.0001)
}
Hi @perrinj3,
we are already tracking this issue in #10.
When we will merge #38 it should help in reducing this load.
Unfortunately, with the current implementation, skipping tags as suggested here could be the unique option in reducing the amount of data to deliver.
We are actively working on the main issue on the k6 side for resolving the root issue, so we will be able to provide a better-aggregated view of the different metrics.
I close this issue, feel free to re-open or add more observations directly in #10.
Brief summary
When using the K6 Prometheus Remote Write Extension samples are being dropped under loads of 700TPS
No custom tags are being used and Prometheus doesn't appear to be under CPU or Memory stress
The same problem occurs if we remote write to Mimir.
k6 version
k6 = v0.38.0 extension = v0.0.2
OS
Windows
Docker version and image (if applicable)
No response
Steps to reproduce the problem
Simple K6 test using the K6 prometheus remote write extension.
Expected behaviour
Samples should be written out within 1 sec flush period for the tested TPS. We would like to run error free at 1200TPS
Actual behaviour
WARN[0432] Remote write took 5.1603032s while flush period is 1s. Some samples may be dropped. nts=150005
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