JMeter 2.12
python 2.7.18
I'm getting JMeterLibException: 'Incorrect log file format' for the below code using robot framework
${logPath}= set variable C:/Tests/output1.log
run jmeter C:/Tests/apache-jmeter-5.4.1/bin/jmeter.bat C:/Tests/100users.jmx ${logPath}
${result} analyse jtl convert ${logPath}
log ${result}
FOR ${ELEMENT} IN #{result}
log dictionary ${ELEMENT}
It seems that your "JMeterLib" (whatever it is) expects some specific JMeter .jtl file format and JMeter 5.4.1 default settings are not compatible with it.
Unfortunately we cannot really help you without seeing this "JMeterLib" output or source code so I can only provide a generic piece of advice:
JMeter .jtl file output is controllable via special set of properties responsible for Results file configuration, once you determine what exact metrics does your "JMeterLib" expect you can amend JMeter's configuration accordingly in order to make it compatible with your 3rd-party software assumptions.
More information:
Configuring JMeter
Apache JMeter Properties Customization Guide
You should use jtl file extension instead of log
${logPath}=set variableD:/Tests/output1.jtl
Can you please help in reading values from below files using JMeter Script or Beanshell script.
jmeter.properties
user.properties
jmeter.bat
What do you mean by "reading"? JMeter loads the properties defined in jmeter.properties and user.properties during its startup and you can get any value using __P() function
If you need to do this programmatically - here is example Groovy code (can be used in any of JSR223 Test Elements)
def jmeter_properties = new Properties()
jmeter_properties.load(new FileInputStream(new File('jmeter.properties')))
jmeter_properties.each { property ->
log.info(property.getValue())
}
jmeter.bat is a wrapper Windows batch file, it doesn't contain any JMeter Properties definitions
When using the WebDriver plugin for JMeter and using subsamples the labels that are set during the test do not appear in the results jtl file (and therefore the results tree/aggregate report etc.
WebDriver code (name = TestSampler):
WDS.sampleResult.subSampleStart('First SubSample')
...
WDS.sampleResult.subSampleEnd(true)
WDS.sampleResult.subSampleStart('Second SubSample')
...
WDS.sampleResult.subSampleEnd(true)
Desired outcome:
result.jtl file:
...
1603546255925,1000,First SubSample,,,ThreadGroup 1-1,text,true,,0,0,1,1,null,0,0,0
1603546257658,1000,Second SubSample,,,ThreadGroup 1-1,text,true,,0,0,1,1,null,0,0,0
Actual outcome:
result.jtl file:
...
1603546255925,1000,TestSampler-0,,,ThreadGroup 1-1,text,true,,0,0,1,1,null,0,0,0
1603546257658,1000,TestSampler-1,,,ThreadGroup 1-1,text,true,,0,0,1,1,null,0,0,0
note that the only difference is that the value passed to the ...subSampleStart(label) function appears in the result file instead of an indexed version of the sampler name.
Add the next line to user.properties file:
subresults.disable_renaming=true
Restart JMeter to pick the property up
Next time you will run your test you will see expected names
For GUI mode you can tick Functional Test Mode box on Test Plan level:
More information:
JMeter Bug 62550 - Modify SubResult Naming Policy
Apache JMeter Properties Customization Guide
Configuring JMeter
While executing the test through JMeter I found in Jmeter log:
2017/12/21 02:37:06 INFO - jmeter.services.FileServer: Default base='/u02/project/gold'
2017/12/21 02:37:06 INFO - jmeter.services.FileServer: Set new base='/home/project/gold/JMX'
I am executing the test from /u02/project/gold/apache-jmeter-3.1 but do not know from where JMeter set new base value which is another directory '/home/project/gold/JMX'? Please let me know how I can restrict jmeter to set new base value?
As per Apache JMeter version 3.3 FileServer class source code:
private static final String DEFAULT_BASE = System.getProperty("user.dir");// $NON-NLS-1$
So it should take user.dir (User working directory) Java System Property value as a default
If you need to override this to have another value you can set it by adding the next line to system.properties file (lives in "bin" folder of your JMeter installation)
user.dir=/some/custom/path
JMeter restart will be required to pick the property up.
Another option is setting the property value via -D command-line argument like:
jmeter -Duser.dir=/some/custom/path -n -t test.jmx -l result.jtl
More information:
Configuring JMeter
Apache JMeter Properties Customization Guide
Overriding Properties Via The Command Line
I am using:
${__eval( ${__FileToString(${filePath}\x.xml)})}
to get an XML String from a file. The variable filePath is not resolved and I'm always getting the error "FileNotFound exception". If the absolute path is given, it works. It seems the variable is not resolved before the FileToString function call. Is there a way to use a relative path?
JMeter uses FileServer class to determine it's base directory.
If you look into JMeter log you'll be able to see something like:
2014/07/14 15:32:12 INFO - jmeter.services.FileServer: Default base='/opt/jmeter/bin'
In my case it's /opt/jmeter/bin
So if I drop x.xml file into /opt/jmeter/bin folder it would be resolved via ${__FileToString(x.xml,,)} function.
There is a property which can control base directory for relative paths resolution:
# Prefix used to identify filenames that are relative to the current base
#jmeter.save.saveservice.base_prefix=~/
You can set it to any other folder and JMeter will use it as the base for paths resolution.
The property can be changed in:
jmeter.properties file
user.properties file
overriden via -J command-line argument as
jmeter -Jjmeter.save.saveservice.base_prefix=c:/xml_payload/
jmeter.properties and user.properties files live under /bin folder of your JMeter installation, FileServer base is usually the same folder.
See Apache JMeter Properties Customization Guide for more details on JMeter tuning using properties.