LoadRunner - lr_vuser_status_message function

There are situations during load testing when you want to find out which data(i.e. username) was consumed by a VUser(For example, Few VUser were having errors). If you don't have proper logging turned on(or a code) during load testing, it can be a pain. One way of getting data information is to use lr_vuser_status_message function.

From LR Help "The lr_vuser_status_message function sends a string to the Status area of the Controller. It also sends this string to the Vuser log. When run from VuGen, the message is sent to output.txt"

For example, In the error log(Controller) you can find out which VUser had an error and using lr_vuser_status_message function you can then find out what data that VUser was using. This way it helps save time in debugging any data related issues.

Following example shows how to use lr_vuser_status_message function.


In the code above, UserName parameter string is passed into the lr_vuser_status_message function.

Now during load testing if you open VUser window in controller, following is what you will see.


From the image above you can notice the UserName(Status column) that each VUser is using in current iteration.

Now if you have an error in the error log, find out which VUser had the error and open up VUser window to find out what data that Vuser was using. It won't tell you what caused the error but will give you enough information to start investigating.