I have few HTTP requests gather under single Transaction Controller. generate parent sample is checked.
when i run the test I get around 6 charts for eatch of the parameters - 6 for throughput, 6 for Average and so...
what does it mean?
BTW, if generate parent sample is not checked then I get even more charts - for each of the http samples - this makes sense
As per documentation:
http://jmeter.apache.org/usermanual/generating-dashboard.html#configuration_requirements
To have a successful graph generation, you need to uncheck "Generate Parent Sample" otherwise you face the issue you're seeing.
Generate Parent Sample removes information required for the missing graphs, that's why they are blank.
Related
I'm looking for a way to display pie chart/table after running 100 tests, but all available built-in reports seem to accumulate data on time spent per sample, controller and about performance metrics.
Although tests mostly check performance and some metrics are usefull, we also need statistics on actual response data.
Each http request queries service for items availability per product.
After tests finish we also would like pie chart appear with 3 sections:
Available
Low on stock
Unavailable
Now, I found "Save Responses to a file" listener but it generates separate files which isn't very good. Also with "View Results Tree" we can specify filename where responses will be dumped.
We don't need the whole response object and preferably not even write anything to disk.
And than, how to actually visualize that data in JMeter after tests complete? Would it be Aggregate Graph?
So to recap: while threads run, each value from json response object (parsed with JPath) should be remembered somewhere and after tests complete these variables should be grouped and displayed as a pie chart.
I can think only of Sample Variables property, if you add the next line to user.properties file:
sample_variables=value1,value2,etc.
next time when you run JMeter test in command-line non-GUI mode the .jtl result file will contain as many extra columns as you have Sample Variables and each cell will contain respective value of the variable for each Sampler.
You will be able to use Excel or equivalent to build your charts. Alternatively you could use Backend Listener and come up with a Grafana dashboard showing what you need.
I am working on a use case where I have to hit multiple API end-points in parallel. I need to capture the response time of all the end-points and also the highest response time. By checking the Generate parent sample for Parallel controller I am getting the highest response time but then I am not getting the response time for child samples(all end-points). If I don't check the Generate parent sample then only the response time of end-points I am able to see in report and not the highest response time.
I don't understand what you're talking about, if I add View Results Tree listener I'm able to see both highest and individual response times:
The same applies to JMeter test execution in command-line non-GUI mode, the .jtl results file contains 3 entries: individual response times and the highest one:
timeStamp,elapsed,label,responseCode,responseMessage,threadName,dataType,success,failureMessage,bytes,sentBytes,grpThreads,allThreads,URL,Latency,IdleTime,Connect
1645003103393,1916,bzm - Parallel Controller,200,OK,Thread Group 1-1,,true,,14450,351,1,1,null,0,0,0
1645003103597,593,example.com,200,OK,Thread Group 1-1,text,true,,1046,113,1,1,http://example.com/,585,0,435
1645003103597,1712,jmeter.apache.org,200,OK,Thread Group 1-1,text,true,,13404,238,1,1,https://jmeter.apache.org/,764,0,435
I was wondering if there was a easier way to do this. Below is a simple load test specification:
WHen I run for high loads the Summary Report might report percentage errors. And you can also probably view those requests in that View Results Tree page. (That is if we catch the error-ed request quickly enough).
Now what do we do if we want to study all the errors to see if there is some pattern in them, or, simply to know all kinds of errors in the http load test? I am looking for some feature or hack to this effect.
You can generate HTML Reporting Dashboard which provides:
A Statistics table providing in one table a summary of all metrics per transaction including 3 configurable percentiles, basically the same as your Summary Report listener
An error table providing a summary of all errors and their proportion in the total requests
A Top 5 Errors by Sampler table providing for every Sampler (excluding Transaction Controller by default) the top 5 Errors
Response codes per second zoomable chart
There is a separate Listener - Response Codes per Second
JMeter .jtl result files are basically .CSV files so you can open it with MS Excel or equivalent and perform grouping or plot errors messages at a timeline chart
And last but not the least, for "high loads" it's recommended to disable or even remove all the Listeners (especially View Results Tree guy) because they don't add any value and just consume the valuable resources.
I am using the View Results in Table and View Results In Tree to view some results of a test.
My thread group has a number of users = 20; Rump up period =1; Loop=1000; This is a request to send the coordinates to server. After running these results differ. In View Results in Table displays error statuses:
But in View Results In Tree the result is successful, without errors:
What does it mean?
Problem with the view "Results in Tree" is that it doesnt show all Samples. It just shows the latest 500 sampels
From the User's Manual...
Starting with version 3.2 the number of entries in the View is restricted to the
value of the property view.results.tree.max_results which defaults to 500 entries. The old behaviour can be restored by setting the property to 0. Beware, that this might consume a lot of memory.
So the last 500 entires from your table should match with the tree. For more information you might wanna check this
You'll have to restart JMeter for it to apply the new setting
As per JMeter Changelog for version 3.2
Starting with JMeter version 3.2 the number of results in View Results Tree is limited by default to 500 entries. If you want more entries, you have to set the property view.results.tree.max_results to a higher value, or to 0, if you don't want to impose any limit. You can set the property in bin/user.properties. More info might be found here.
Add the next line to user.properties file (it lives in JMeter's "bin" folder)
view.results.tree.max_results=0
Restart JMeter to pick the property up
This way you will "tell" View Results Tree listener to show all the samplers (be aware that JMeter can fail to display 20 000 samplers in the View Results Tree listener)
Out of topic, but still important:
As per View Results Tree listener documentation
View Results Tree MUST NOT BE USED during load test as it consumes a lot of resources (memory and CPU). Use it only for either functional testing or during Test Plan debugging and Validation.
As far as I can see, you are running your test in GUI mode. Please don't, JMeter GUI should be used for tests development and debugging only, when it comes to test execution you should run your test in command-line non-GUI mode.
Here i have A recording controller and test script recorder. I recorded the user activities using template. This automatically creates a Recording controller and then transaction controller. Each transaction controller has child HTTP request wrapped inside it. Now when I run the test after creating a test script, I see that the aggregated result shows information about (throuput, error, min etc) for child HTTP request(Sampler) as well as the parent transaction controller.
I'll make it more clearer with images below.
In the above picture ive created the test plan. Now when I run this test i get following result. The circled ones are the transaction controller.
Here, i have circled the parent transaction controller. Now why on earth is this adding up to the result.
Question: Is it making any request to the website? Why is this showing up and adding values to the child request. This thing is just a sum of all its child request - so, why is it adding up in the table?
Here again if I click on the "Generate parent sample" then it hides the child request and shows only the summed up report which is totally different from above report.
Now the question is how do I turn things around. What are the consequences. And what should I do in this case. Shall i compute the parent-child report or just the parent report data?
As per documentation of Transaction Controller:
The Transaction Controller generates an additional sample which measures the overall time taken to perform the nested test elements.
So if you don't want this additional sampler, just remove it or replace it by Simple Controller.
Note it is useful when it contains more than 1 sampler.
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