I ran a sample test in Jmeter non-GUI mode and a transaction failed for few iterations. When I opened the the jtl report in View Results Tree listener, for the failed sampler I got 'No data to display' message. Not only this, but for all the samplers the same message was displayed.
Here I want to see what the request was and what was the response. How to get those details?
And also all the samplers are jumbled so it is very difficult to identify which iteration failed. Is there a way to get all the requests in an orderly manner?
Have a look at the listener Save Responses to a file you can save the failed responses to a folder and analyse that after your test. You can put variables (like ${__threadNum}) into the filename field to provide more information like iteration or user.
Related
Executed load testing script using JMeter for 50 users but it is not adding data in database for 50 users and adding only for 20 users, What is the issue?
Open your .jtl reusults file with a listener like Aggregate Report and check the number of failures, if it's around 40% - then you need to investigate the cause of the failures and see what needs to be done to fix them either from JMeter or from application under test perspectives.
If there are no failures in the .jtl file but your test is not doing what it is supposed to be doing - most probably it "silently" fails somewhere somehow. I would recommend adding Response Assertions to each and every step to validate that each response contains the anticipated data (or alternatively doesn't contain errors).
JMeter automatically treats HTTP status codes below 400 as successful and doesn't do any other checks so in case when an error occurs but application responds with a positive HTTP status code JMeter will consider the request as passed so you need to specify pass/fail criteria.
And last but not the least, you can temporarily amend the Results File Configuration so JMeter would store all the request/response details, after test run you will be able to examine the flows using View Results Tree listener and identify where and how exactly your script does fail.
I'm looking out for a tool that supports recording option in web on the tasks that I perform (search and result analysis).
I finally rerun the recorded script and calculate the time that is taken for each page that is loaded (generally based on the search criteria) within the web.
Once the page loading exceeds the defined time, the exceeded time should be highlighted.
The reports on this should be automatically saved.
The above scenario was tried using jmeter, but I was not able to set benchmark and automatically set the scenario as failed when the page load exceeds the defined number.
Please suggest a tool that could be used for the above mentioned scenario, and if the same could be done using Jmeter that I'm missing out.
Thanks in advance..!
In JMeter you have :
Duration Assertion which you can utilize to set the response time threshold. If response time exceeds the time set in the duration assertion JMeter will automatically mark the relevant sampler(s) as failed
SMTP Sampler which can be used for sending JMeter test results to the specified recipient(s). Add a tearDown Thread Group to your Test Plan (tearDown Thread Group is being executed after all other Thread Groups), put SMTP Sampler under this tearDown Thread Group and configure it to send .jtl results file at the end of the test. See Load Testing Your Email Server: How to Send and Receive E-mails with JMeter article for example configuration.
My jmx file has 30 requests , 30 users, and response data may very according to the user logged. I am using view result tree as listener, my question is how to know for which user for which a request failed to get a response from server?
There are multiple options, to provide exact solution we need to know more details.
JMeter provides information about thread (virtual user) number as "Thread Name"
You can append the relevant JMeter Variable to the sampler name:
N.B. Don't use View Results Tree listener for anything but tests development and debugging as it is very resource intensive, when it comes to load test execution it will consume lots of the RAM and it may ruin your test. Run you test in command-line non-GUI mode and use listeners to analyse the results file after test completion. More information on JMeter tuning for the maximum performance: 9 Easy Solutions for a JMeter Load Test “Out of Memory” Failure
I created a jmeter script for an MSTR application. The server on which this application is hosted was shut down by the Development team but my script is still running successfully.
Why is the script not giving errors??
In case of HTTP Requests JMeter automatically treats all HTTP Status Codes which are less than 400 as successful.
You can consider adding i.e. Response Assertion to ensure that the test is doing what it needs to do and, expected information is present at the page, not expected information is not present, etc. You can also set maximum response time via Duration Assertion, check response for being HTML/XHTML/XML-compliant via HTML Assertion, etc.
See How to Use JMeter Assertions in Three Easy Steps guide for comprehensive information on conditionally failing JMeter samplers using assertions
You are getting an impression that the script is running successfully based on the response code you are receiving. For correctness of the tests, it is advised that you add response assertions to your scripts and add certain text as a pattern which is expected as result of successful response for respective request.
In this case you also need to make sure that you don't add response assertion for each and every request as it can make the JMeter script heavy to execute and JMeter may run out of memory if appropriate memory is not allocated.
Add a response assertion and re-run the test and make practice to use it to validate the correctness of your script.
I'm setting up a Jmeter performance test case and in the debugging phase I need to log the full HTTP headers.
I have created my jmx script for a test.
I can't find anywhere how to tell Jmeter to log that to the ouput in jmeter/log.
Is it possible and how ?
In the JMeter workflow, it is usually the easiest to use the GUI to create and debug your test. The View Results Tree listener shows a tree of all your requests and responses, including header information. It should be mentioned, even though it is called out in a red box at that link, do NOT use the view results tree listener during a load test, it is a very expensive component that drains memory and CPU.
To debug from the command line, the save responses to a file listener is the usual go-to to save response data to disk, but I'm not certain it saves headers. The Simple Data Writer listener though does both Request and Response Headers via the configure panel.
Again, care should be taken to not leave in excessive logging for a full load test, your disk I/O could become a bottleneck.
And last, as with most things JMeter, you can replicate any behavior in a beanshell component. Either a post processor or an assertion.
if (someCondition) {
log.info(ResponseHeaders);
}