Noga Cohen is a Sr. Product Marketing Manager for CA BlazeMeter. She manages the BlazeMeter blog and other content activities. Noga focuses on creating technological content in the fields of performance, load testing and API testing, both independently and by managing writers who are developers. Noga has more than 5 years of experience in a wide scope of writing techniques: hi-tech, business, journalist and academic.

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Oct 18 2017

What's New in JMeter 3.3?

JMeter 3.3 was released by the Apache JMeter™ team at the end of September. This upgrade is part of JMeter’s progress and quality improvement to remain a modern and updated load testing tool. This release follows quite a few releases in the past year: JMeter 3.0 was released a year ago, in September 2016. It was upgraded to version 3.1 in November 2016 and to JMeter 3.2 in May 2017. Read this blog post to learn everything you need to know about JMeter’s new version.


JMeter 3.3 is here. Here’s what’s new:


HTTP Cookie Manager Implementation Box Removed


The implementation menu box was removed because JMeter supports only one HTTP Client implementation, making the UX cleaner.




what's new in jmeter 3.3?




newest features in jmeter 3.3


Function Helper Dialog Shows Function Result


Now you can see the results of the function JMeter generates, in addition to the function. This can help you understand how JMeter generates function results for you, and improve your knowledge of how tests are run.


Here’s how it works:

  • Options-> Function Helper Dialog
  • Choose a function.
  • Configure the function values.
  • Click “Generate”.
  • You will see the function to be used in JMeter, like before, and also a preview of the results.


learn jmeter 3.3


By clicking “Generate” again you will see more results.


HTTP Sampler Supports Brotli Compression (Google’s Algorithm)


You can now load test the Brotli Compression by adding the “br” encoding value to the HTTP Header Manager.


“Vary” Header Responses are Cached Properly


In the past, Vary header responses weren’t cached at all. Now they are. Good news for users who use advanced HTTP caching features.


Transaction Samples Aren’t Dropped Anymore


In the past, some threads that were interrupted in the middle of a transaction weren’t reported anywhere. Now, this has been fixed. Interrupted transactions are reported in success and failure reports, for a more accurate load test analysis. This fix was contributed by BlazeMeter.


“Thundering Herd” Bug Fixed


In the past, if you ran a test that had threads that were sleeping on timers, and you stopped the test or it was interrupted, all of the sleeping threads would be released at once. This created a huge spike that could crash your target environment. Now, this bug is fixed, and if you stop a test, sleeping threads stay connected to their timers.


Read about all the fixes in this version, here.


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