How to create multiple new users in a site by using JMeter

Question

I followed the instructions from this Stack Overflow page:

1. Record create user scenario using JMeter.
2. Parametrize add user request (username, details) with CSV data set config element.
3. Add CSV data set config with required no. of entries (500 in your case) where each line represents user details, user1, India, passwd1, user2, US, passwd2.
4. Add View result tree.

When I run this scenario, it displays this error and I don't know why:

Response code: 500

Can any experts out there share what I am doing wrong here?

Answer 1

HTTP Status Code 500 stands for Internal Server Error so first thing you should do when you see it is checking your application log files, most probably you will find the cause of the problem there.

Also be aware that record and replay won't work in 100% of times, modern web applications widely use dynamic request parameters and headers mostly for client state management and security reasons so you will need to take them into consideration as well so your test plan would look like:

• Open Login Page
  • Get all dynamic parameters using JMeter Post-Processors and store them into JMeter Variables
• Perform Login providing credentials from the CSV Data Set Config and dynamic parameters from the previous step.

The process is known as correlation and you should be able to find a lot of information over the web on it. Given JMeter will send the same requests as the real browser - you should be receiving the same responses.

Also add a HTTP Cookie Manager to your Test Plan, it automatically detects and handles Cookies and deals with cookie-based authentication

Answer 2

JMeter is a Load testing tool and not a data creation tool.

• It should be used for load testing and not functional aspects. Though it can be used for data creation because of its record and replay feature. (of course with parametrization)

To create data,

1. You need to record create user scenario using JMeter.
2. Parametrize add user request (username,details)with csv data set config element.
3. Add CSV data set config with required no. of entries (500 in your case) where each line represents user details, user1,India,passwd1 user2,US,passwd2.
4. Run script with 500 threads (not advisable but a possible way) or single thread with 500 loop count. This will create users with data from csv. After that you can load test your website.