I am using JMS publisher and have a request xml copied on text message area , this xml has a node where i have put a beanshell script so that at each request new timestamp gets appends to the node to keep each request unique. How can i get the list of that node for each request sent?
Amend your Beanshell code to store generated timestamp into a JMeter Variable like:
${__BeanShell(long ts = System.currentTimeMillis(); vars.put("timestamp"\,String.valueOf(ts)); return ts;)}
It will store generated timestamp into a JMeter Variable called ${timestamp}
Add the following line to user.properties file (lives under /bin folder of your JMeter installation)
sample_variables=timestamp
Next time you run JMeter you'll be able to see generated timestamp values in the last column of .jtl results file.
See Sample Variables User Manual chapter for details.
By the way, you can generate timestamp without calling Beanshell, JMeter provides __time() function which can return current time in different formats. See How to Use JMeter Functions article for comprehensive explanation.
Related
As the title suggests, I am trying to figure out how to change the File Upload path in JMeter after X amount of seconds. I need this since I am testing an API that uses 60 files and I need to cycle through each file every minute. I already have an idea of using CSV Data Set Config but I'm not sure if that will change the File Path every minute like I need it to. Or maybe even read from the CSV file once per minute?
Use __P() function to read the path to the file from a JMeter Property path
${__P(path,)}
Add another Thread Group to your Test Plan and use a Debug Sampler in combination with CSV Data Set Config to read the next filename from the CSV file into path JMeter Variable
Add a Constant Timer or Flow Control Action sampler to introduce 60 seconds of sleep between iterations
And finally add a JSR223 PostProcessor to convert path variable into path property:
props.put('path', vars.get('path'))
see Top 8 JMeter Java Classes You Should Be Using with Groovy article to learn what do these props and vars shorthands mean
That's it, Debug Sampler will be executed each 60 seconds, the CSV Data Set Config will read next value from the CSV file and the JSR223 PostProcessor will update the path property value with the new filename or file path.
We have script, jssr preprocess which will copy the file from one bucket and paste it to another bucket in Amazon s3and http request which will take the file and do further processing.
Before copying file we do renaming filename with timestamp(function help builder). Everytime we do performance testing it has to pick unique file name.
But when I run send requests for 5 minutes, timestamp remain same, it's taking first timestamp through there is some second difference between each request. Is there any way each request to generate unique timestamp within jssr preprocessor
It's not very possible to come up with the solution without seeing your "script".
Blind shot: if you're using __time() function inside the JSR223 PreProcessor only first occurrence will be evaluated, on subsequent executions the same value will be used.
If this is the case either move the __time() function to the Parameters input field or use System.currentTimeMillis() function instead
Demo:
More information:
JSR223 Sampler Documentation
Apache Groovy - Why and How You Should Use It
Here is my scenario:
I created a test fragment for a sampler which is being used in many thread groups present in different jmx scripts. I sometimes would like to extract few values of this sampler result using few post processors.
Question:
How do I group and make these post processors reusable? I do not want to include as part of the test fragment itself as I don't need/want to execute post processor action every time.
Here is what I have tried:
I am able to save those post processors as a separate test fragment and include it in my test script right after the test fragment with the sampler whenever I want to execute them. I can save the sampler result to a jmeter variable and use it inside my post processor test fragment.
Is this a good approach? Please guide me.
Having Post-Procesors at the same level as all other Samplers is not a very good idea as they will be executed for each Sampler in their scope
Saving response data into a variable each time is also an overhead as according to your question you need the value sometimes
I would recommend using JSR223 Sampler to copy previous sampler response data and apply necessary Post-Processor(s) to it as child(ren).
The relevant code to copy the previous sampler response data would be as simple as:
SampleResult.setResponseData(ctx.getPreviousResult().getResponseData())
Where:
SampleResult - stands for current SampleResult
ctx - stands for JMeterContext
Check out Apache Groovy - Why and How You Should Use It article to learn more about Groovy scripting in JMeter conctept
The JSR223 Sampler can be saved as a Test Fragment as well.
Adding to #Dmitri T answer, in JSR PostProcessor you can save similar code in script file and reuse it
Script file A file containing the script to run, if a relative file path is used, then it will be relative to directory referenced by "user.dir" System property
Use the same script file in several post processors for re-usability:
I have created a test plan in Jmeter which executes certain queries and store elapsed time in csv file. I need to save row count against each sampler request. How can I achieve this?
Below is my CSV file configuration
Don't use any of JMeter Listeners to store test results, they don't add any value and create memory and disk IO overhead instead. You should be running your tests in command-line non-GUI mode like
jmeter -n -t test.jmx -l result.jtl
and when your test is finished either open result.jtl file with the listener of your choice or generate HTML Reporting Dashboard from it.
Coming back to your question. Given you have a JMeter Variable holding some "interesting" value and you would like this variable value to be added to test results just define sample_variables property and put the variable name there. For example, if you have JMeter Variable called rowcount add the next line to user.properties file:
sample_variables=rowcount
and next time you run your test you will see an extra column in the .jtl results file called rowcount holding the variable value for each and every sampler. See Sample Variables User Manual chapter for more details.
I have extracted the data from the response using jmeter's Regular expression extractor.Now i need to print those extracted values in excel.How to do that please help me out.I will be using multiple thread and all those output should be printed in excel as well.
The easiest way it to add the value to JMeter's .jtl results file, just take the next steps:
Add the following line to user.properties file (located in JMeter's "bin" folder)
sample_variables=your_variable_reference_name
or
pass the parameter via -J command-line argument like:
jmeter -Jsample_variables=your_variable_reference_name -n -t test.jmx -l result.jtl
Restart JMeter to pick the change up
Next time you run your JMeter test you will see an extra column in the .jtl results file containing the variable from regular expression extractor value for each sampler
References:
Sample Variables Property
Apache JMeter Properties Customization Guide
Another approach (for example if CSV format is not suitable for some readon) would be adding Apache POI libraries to JMeter Classpath and using JSR223 Test Elements to create and/or update Excel file, but this approach is harder as you will need to avoid concurrent writes or do in in i.e. tearDown phase to avoid race conditions and data loss.
See Busy Developers' Guide to HSSF and XSSF Features for example code for working with Excel documents using Java/Groovy.