JMeter/Blazemeter capabilities

Question

I am a Load Runner tester and would like to know how below requirements can be done in Jmeter.

• Data parameterization - How can we implement unique and random data parameterization in Jmeter.

• how do we get vuser id value for each virtual users in a Thread group?

• If we need to initialize/load any data during vuser initialization (vuser_init() in load Runner) , how can we do it? Also, how do we call any function when vuser is ending, like vusr_end() in LoadRunner.

Answer 1

In Core JMeter:

• For Data parameterization, use CSV DataSet , it will pick columns from CSV file and expose them as JMeter Variables you can use with ${varName}

• To get user id, use jmeter function __threadNum()

• There is no strict equivalent, for vuser_init you can use a Once Only Controller. For vuser_end, there is no equivalent

Answer 2

1. For parameterization:

   • CSV Data Set Config - for sequential data
   • Random CSV Data Set Config - for random data
   • HTTP Simple Table Server - for unique and random data, suitable for Distributed Testing (basically equivalent of the Virtual Table Server)
2. __threadNum()

3. Normally it is being done in:

   • vuser_init() - setUp Thread Group
   • vuser_end() - tearDown Thread Group