Following the JMeter step-by-step documentation https://jmeter.apache.org/usermanual/jmeter_proxy_step_by_step.html
It says;
What should I see in the "view results tree"?
How do I know if things are okay or not?
What does it mean if nothing shows in the results tree?
Validate is a feature which appeared in JMeter 3.0, it basically runs your Test Plan with 1 user in 1 iteration with no pauses if there are Timers in your test plan.
In View Results Tree listener you should see all executed requests including request and response details.
If request is successful (by default JMeter treats HTTP status codes below 400 as successful) - it will be "green", otherwise it will appear as red.
If there is nothing in View Results Tree it means either that no requests were executed or you put it into wrong place, View Results Tree listener obeys JMeter Scoping Rules so it should be at the same level as your Samplers (or higher)
Related
I am trying to generate a test report for a thread group.
I see that since i run a http request in while loop controller, the request shows up in the report with too many failures as i also have an assertion to the request.
These are not failures but, tries, how do i make sure that these dont get captured in the report.
I am using View results in table listener for report. I tried to remove assertion for this http request so that it is not captured in the report? Is this the right approach?
As per 9 Easy Solutions for a JMeter Load Test “Out of Memory” Failure article:
Use Assertions Sparingly
Every test element added to the test plan will be processed - and this takes CPU time and memory. This also applies to all your Assertions, and is especially true for Compare Assertions - which consumes a lot of resources and memory. Only use the assertions you need and, even then, just use the amount that are absolutely required.
So removing the assertion seems to be a right approach to me.
Also if it's a Response Assertion you can modify it to accept 2 (or more) criteria so you can configure it to not to fail on "tries", example setup which accepts HTTP Status Codes 200 and 501 and will fail for everything else:
I just finished a test case in JMeter and the result is fine; however, I somehow want to see the result reflecting also in the log view.
For some reason, the Sample time (ms) is not reflecting on the log view (Log level: Debug)
Does someone have an idea on how to display that too?
Add listeners to your test plan. Aggregate report and Tree view result, for example.
But use them only for debugging your tests.
I don't think JMeter will report response times in the log file even given you set the most verbose logging level, if you want to have this data in log - I would recommend going for JSR223 Listener instead.
Add JSR223 Listener to your test plan at the same level as all your Samplers live (or according to JMeter Scoping Rules if you want limited samplers to be affected)
Put the following code into "Script" area:
log.info(prev.getSampleLabel(true) + ' response time: ' + prev.getTime())
That's it, now you will be able to see the response times in the jmeter.log file
Update - Deleting the Aggregate report and rerunning the test now gives an error rate of 0. Why is this required?
I am using JMeter 4.0 to hit a REST web service with 20 thread groups by sending a POST request with a JSON body. All 20 requests succeed and give proper response (200 with a correct JSON body). Why is the error rate above 99%? (See image below). Also, why is no of samples is 10063 in report even though View Results Tree tab shows 20 HTTP requests (each with error count 0).
If you run JMeter test which assumes 20 HTTP Request and seeing > 10 000 in the listener - most probably you are opening an incorrect .jtl results file in the listener.
Double check that "Filename" input field is empty
Prior to running a new test make sure to clean "in-memory" results by choosing Run -> Clear All from JMeter's main menu (or click Control+E)
Be aware that using Listeners is a some form of a performance anti-pattern, they don't add any value but consume valuable system resources which can be either used for something else or left intact to save the trees. So:
Remove all the listeners from the test plan
Run your test in command-line non-GUI mode like:
jmeter -n -t test.jmx -l result.jtl
When your test is finished either open JMeter GUI and inspect the result.jtl file with the listener of your choice (you can load it using aforementioned "Filename" tab)
Or generate an HTML Reporting Dashboard out of the result.jtl file - it will contain statistical information, tables and charts outlining your test results.
View Results Tree since few versions only keep last 500 SampleResult and only refreshes every few seconds.
So the number of samples in view results tree is not the total.
Besides, you should never run a load test in GUI mode as it impacts negatively performances of Jmeter injection.
see this for best practices :
https://www.ubik-ingenierie.com/blog/jmeter_performance_tuning_tips/
I record and run the Jmeter script by keeping number of users = 1, in tread group.
Results tree output:
I increased the number of users to 3 and result tree output order changed.
Therefore my some of regular expression exacter logics get failed and resultant responses failed. How can I avoid this situation.
Is there way to manage result tree execution order.
If your regular expressions are under the requests and not at the same level as of HTTP requests then it should not be a problem.Every thread/vUser will run independently. But, in view results you will see request as and when executed by different threads and not in sequence.
As per JMeter Functions and Variables user manual chapter:
Variables are local to a thread
Each JMeter thread (virtual user) executes Samplers upside down (or according to the Logic Controllers). JMeter threads are absolutely independent from each other and each thread has its own variables.
So the problem must be somewhere else, inspect the state of the variables using Debug Sampler and the response data for /oauth calls - it might simply not contain the necessary token value.
Also there is a suspicious call to bundle.js, my expectation is that you should not be executing it directly. The good practices is to configure HTTP Request Defaults to download embedded resources and use parallel pool to be closer to what real browsers do.
See Web Testing with JMeter: How To Properly Handle Embedded Resources in HTML Responses article for more detailed explanation.
In my test plan I want to make java request and check how it was done by making jdbc request, But I don't exactly know when java request will change DB. I want to make several requests with waiting after each. And if JDBC request doesn't special changes after certain time stop whole test. After that I want to see progress where test plan stopped in view results tree.
BUT
If I use any stop-thread functions, there are no data in View Results Tree.
Haw can I do what I want with jmeter?
Thanks.
you can use a similar mechanism to the one described here:
http://www.sourcepole.ch/2011/1/4/waiting-for-a-page-change-in-jmeter