Jmeter - Variables from input file to output file

Question

Is there a way to write variables from csv input file to the .csv output file?

i have input.csv with

planID |planNum
----   |----
1      | 123456

Also, I have user defined variable: varToFlexibleFileWriter, value: "some value"

I am using flexible File writer to write output file In Record each sample as, I have : ${varToFlexibleFileWriter}|\t|${planNum}|\r\n

but in outfile I see:

userDefinedVar | planNum
some value     | ${planNum}

User defined variable is displayed as expected, but there is no value for planNum.

Is there a way to make flexible file writer to write variable values from input file? Thanks

Answer 1

You need to add some extra configuration so Flexible File Writer could save your planNum variable.

1. Add the next line to user.properties file (it is located in JMeter's "bin" folder)

   sample_variables=planNum
   

   JMeter restart will be required to pick the property up. Alternatively you can define the property by passing it via -J command-line argument like:

   jmeter -Jsample_variables=planNum -n -t yourplan.jmx -l results.jtl

2. Use variable#0 instead of ${planNum} in the Flexible File Writer

References:

• Saving JMeter Variables with Flexible File Writer
• Apache JMeter Properties Customization Guide

Answer 2

Every answer I see in all the internet avoids the main question!

How does one write a dynamic values to the output?

Clearly the original author of the thread wanted to submit changing values into the output. (csv, etc...) From every answer I see, the end result is NO, you cannot write changing values to Flexible File Writer!!!

If this had been the intent of the developer, they would had allowed custom ${vars} to be used in the plugin. EVERYTHING is static output. The only dynamic values are the tiny subset of vars that can be used and cannot be modified.