How do I pass a variable from one Thread Group to another in JMeter

Question

I have a JMeter test with 2 Thread Groups - the first is a single thread (which creates some inventory) and the second has multiple threads (which purchase all the inventory

Answer 1

I found which I believe is the most simple way to get this done.

Use

Bean Shell PostProcessor

Set in one Thread Group

to set the variable (http://jmeter.apache.org/usermanual/best-practices.html#bsh_variables)

import org.apache.jmeter.util.JMeterUtils;
JMeterUtils.setProperty("PC_CREATED_PROMO_CODE", "value");

OR if you want to set it to a value contained in another variable

import org.apache.jmeter.util.JMeterUtils;
JMeterUtils.setProperty("PC_CREATED_PROMO_CODE", vars.get("Extracted_PC_CREATED_PROMO_CODE"));

Get in the other Thread Group

And then from the other thread group, read it via (http://jmeter.apache.org/usermanual/functions.html#__property)

${__property(PC_CREATED_PROMO_CODE)}