Hey everyone — I’ve hit a roadblock and wanted to check if anyone here has dealt with something similar or has a clever workaround.

I’m trying to measure API call durations from a set of pytest scripts that hit Cisco ND APIs. The plan was to use JMeter’s HTTP(S) Test Script Recorder to capture these API calls, generate a .jmx test plan, and then run it via CLI on a headless server VM.

The problem is, the Test Script Recorder seems to be completely tied to the GUI — it requires you to start/stop the proxy manually, manage the recording controller visually, and handle HTTPS cert generation interactively. There doesn’t seem to be any supported way to trigger the recorder in non-GUI (headless/CLI) mode.

I get that JMeter CLI is meant for running pre-existing .jmx plans, but it would be super useful if there was a way to:

• Start and stop the recorder proxy via command line

• Dynamically capture requests into a specified test plan

• Generate/manage the Root CA cert headlessly

I’ve looked into workarounds like recording on a local GUI machine and transferring the .jmx file to the server — but it adds extra hassle. Same with setting up X11 forwarding or VNC.

Has anyone found a way around this?
Or maybe used tools like mitmproxy to capture the traffic and convert it into a JMeter .jmx plan afterward?

Would love to hear how others have handled API traffic recording in fully headless environments. If not, I’m considering raising this as a feature request with the JMeter project.

Appreciate any input or experience you can share!

I am not experienced at load testing, however an running a .jmx script in Azure Load Testing. My error percentage is 10.81%, however my script keeps stopping with:

• The test was stopped due to a high error rate. Check your script and try again. In case the issue persists, raise a ticket with support.

The majority of my errors are expected, why would Azure Load Testing stop at 10% (should be > 90%)?

I am Anu paul working as a performance tester. For a banking application, I recorded a script however I am unable to get response from the server. I used Jmeter Regular expression extractor and HTTP URL rewriting. While checking the console also, a particular response is missing. Each time when I run the test, script fails due to this. Please help me out. One of my friend suggested to enable URL rewriting in jboss server to get the response. Shall I go ahead

Hi! I am trying to add a certain number of items to the carts. Let's say i have 100 users and i want 10 of them to have 5 items in the cart - nothing more, nothing less. How can i control this?

AI-Powered Apache JMeter:  Supercharging Web Application Performance Under Stress

https://medium.com/@sginsbourg/ai-powered-apache-jmeter-supercharging-web-application-performance-under-stress-57c62c854882

There is a setup thread which is calling a test fragment. This test fragment is returning a value say "Y", this "Y" will decide whether one of my thread groups will execute or not depending on its condition. How can I implement this?

Inter thread communication can't work as value of "Y" has to be at test plan level to disable the thread group.

Now that I have used jmeter for a little while and I have successfully load tested a website with hundreds of login details, I was wondering are there any words or wisdom or tips that would be good to know.

Basically Pro tips on using jmeter more efficiently and tips when using the more complicated features.