Ramesh Raja wrote:
Hi Team,
We're trying to use Jmeter and Selenium for performance testing. When we
run scripts with one thread, the execution succeeds; however, if we run the
scripts with five threads, two or three of the threads fail every time
We tried with reducing the ramp-up time and made use of the Selenium Grid
feature.yet having the same problem.
--
Thanks & Regards,
*Ramesh Raja*
rajaramesh2...@gmail.com
Unfortunately your "fail" statement doesn't tell the full story, you
need to share at least response message and jmeter.log file
<https://jmeter.apache.org/usermanual/get-started.html#logging>contents
so we could understand what's going on. Also it's not very clear how do
you integrate JMeter with Selenium. If you use some custom Groovy code
in JSR223 Samplers- make sure that it's thread-safe
<https://www.baeldung.com/java-thread-safety> and you're not re-using
the same WebDriver instance by multiple threads.
Also be aware of WebDriver Sampler
<https://jmeter-plugins.org/wiki/WebDriverSampler/> plugin which
provides JMeter integration with Selenium and it's suitable for
multi-threaded execution.
And last but not the least, using real browsers for load testing is not
recommended by either Selenium developers
<https://www.selenium.dev/documentation/test_practices/discouraged/performance_testing/>
or WebDriver Sampler developers
<https://jmeter-plugins.org/wiki/WebDriverTutorial/>, you should be
using HTTP Request
<https://jmeter.apache.org/usermanual/component_reference.html#HTTP_Request>
samplers to create the main load (make sure to configure JMeter to
behave like a real browser
<https://guide.blazemeter.com/hc/en-us/articles/206733719-How-to-make-JMeter-behave-more-like-a-real-browser>)
and i.e. 1 instance of WebDriver for checking the frontend performance.
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