I'm trying out taurus to run some existing jmeter scripts, setting various properties to local values.
I can use the -gui mode to load the modified script in the jmeter GUI and debug. However, I can't update this and replace the original file because Taurus has added two jtl data writers. I can suppress "Errors Writer" with e.g. -o execution.0.write-xml-jtl=none, but I can't see a way to suppress "KPI Writer". It's also possible further undesirable modifications have been made.
Is there a way to launch the GUI so that I can edit the original file, using the properties from the Taurus yaml file?
You cannot run the original jmeter scripts through bzt however it is possible to manipulate few properties of the newly generated jmx file through the yml file. Modified jmx is a copy of original script where two Listeners (errors and kpi) and variables from the yml.
It now depends on what exactly are you looking to change?
Related
I add several components for debugging as Debug Sampler, View Results Tree and JSR223 Sampler that are useful in GUI mode, but I want it to be ignored when running load test,
Is there such option of executing Sampler/Listener only in GUI mode and not in command line/"load" mode?
I am not sure that this is the exact answer you are looking for but still let me try. We know that JMeter script is nothing but xml in disguise and structure look like this.
So for every Jmeter component, there is enable property which needs to be true so that it will get executed as part of JMeter Test plan. Now if we can change this some properties which can be passed as parameter then we can make them disable at the run time.
Change in jmx will be reflected like this...
If you run this script in Non GUI mode with additional property passed as parameter, we essentially achieve what we want.
jmeter -n -t .\ExcludeJMeterComponent.jmx -l result.CSV -e -o "Output" -DenabledDebugComponents=false
Issue with this approach is, if you load this script again in JMeter, these values, manually edited jmx going to go away/get override with your next save but if you are using any version control system to keep track of your jmx script [which you must be doing] it will be very easy to add this changes in the script again in no time.
I will post this with more details once my blog is set up.
Found a workaround, to send in CLI JMeter property as -JignoreFirstSampler
Add If Controller as a parent of samplers to exclude checking if property is defined
${__isPropDefined(ignoreFirstSampler)}
The __isPropDefined function returns true if property exists or false if not.
Is there a way to get the debug sampler results while running jmeter in non-gui mode? More simply I am looking for a way to log all the variable substitutions that happen while the test is run. I tried enabling and disabling debug logs for the available packages, but am still not able to get the substitutions.
Here are the options:
sample_variables property. For instance if you need to see values for variables foo and bar add the next line to user.properties file which lives under /bin folder of your JMeter installation:
sample_variables=foo,bar
and aforementioned variables values will be added as separate columns to .jtl results file. See Apache JMeter Properties Customization Guide for more information on JMeter properties and ways of working with them
You can print something to jmeter.log file via __log() or __logn() functions
What I try to achieve is to get JMeter results in 2 formats, for the same test execution. CSV is the one I'm mostly interested in, unless there are failures - then I may need to use data which can be saved only to XML. I can't use XML for most occasions, due to misc reasons.
I was looking at jmeter.save.saveservice.output_format cfg entry, it doesn't seem to accept both as valid entry. I was also looking at JMeter code itself, it also clearly separates both options.
Did anyone invent a hack to get both JMeter outputs at the same time?
Solution for both standalone JMeter and jmeter-maven-plugin is welcome.
If you use JMeter Maven plugin, as per Five Ways To Launch a JMeter Test without Using the JMeter GUI guide the default output has to be XML.
If you need CSV output as well - just add Simple Data Writer listener. If you looking for CSV data to be in line with JMeter default CSV values configure it as follows:
I know that we can export/save results of a listner in csv or xml format.
But what i want is to save the listner result once the script has been run.
There seems to be no way of doing this. currently giving a file path in a listner will work only before the execution begins not after it is over.
As per JMeter Performance and Tuning Tips guide it is recommended:
To use non-GUI mode for tests execution
To disable all the listeners during the test run
On test completion you should be able to open .jtl results file by the listener of your choice.
If you need to store some specific data required by this or that listener, take a look into jmeter.properties file (lives in /bin folder of your JMeter installation) and amend properties having "jmeter.save.saveservice." prefix according to your plans.
Perhaps Automatically generating nice graphs at end of your Load Test with Apache JMeter and JMeter-Plugins guide can also help.
Is there a way to create a JMeter test plan without going through the GUI?
I.E. can you create a script with pure code?
In a way - yes. You can create the JMX file in a text editor, but it would require knowing what every component needs.
You're better off creating in GUI mode and modifying the JMX file manually as needed.
Yes it's possible to write a test plan just by writing JAVA code.
The key classes to look into are:
StandardJMeterEngine - the main class which configures the Test Plan and executes it
HashTree - a special collection which holds Test Plan elements
A minimum of JMeter Controllers necessary to run the test.
Reference: http://blazemeter.com/blog/5-ways-launch-jmeter-test-without-using-jmeter-gui
I can write and run JMeter without GUI. JMeter use JMX file, as you can here.
Not entirely sure why you would want to write a JMX in this way? ... But yes, entirely possible if you understand the structure of the document.
You could use any basic text editor to achieve this (notepad / notepad++ for example).
A JMX file is a saved JMeter project in XML format. ~ Ref
Depending on your needs you could the browser editor from the JMeter Plugins website.
jmeter-plugins.org/editor/
Or simply save a basic JMX as a template and spend loads of time learning the structure, syntax and namings etc.