JMeter Live Changes Config

Overview

This plugin allows users to manipulate (through a REST API) JMeter test plans on-the-go. Here's a couple things that are modifiable:

Throughput
Number of active threads
Variables
Properties

Users can also:

View a summary of the test results
End the test remotely
Retrieve a quick status of the test (time running, active threads, etc.)

Why

There are some scenarios where this kind of tool becomes very handy. For example;

Testing the impact of different load scenarios against a system
Container sizing (on Kubernetes/OSE, for example)
Correcting certain test parameters while the test is running

Setup

Java version 9+ is required

Download the latest JAR from the release section
Move the file to your $JMETER_HOME/lib/ext folder
Start JMeter, load your test plan
Add the Live Changes Config element to the root of your test plan
Set the port you want to be able to communicate with (defaults to 7566)
Start your test
By using any HTTP client (Postman, Insomnia, cURL, etc.) communicate with the REST API to change your test's values

Documentation

An API documentation is available here, it is directly generated from the swagger.yaml.

Contributing

This plugin is licensed under the MIT license.

All contributions are welcomed and appreciated.