My project structure in JMeter is now:
But there are some limitations:
A lot of duplicate transaction/module controllers
The only once controller is not working with the UltimateThreadGroup
Its not possible to use the setUp thread, because the cache is not shared between threads
The time from the warmup is different, i cant use the offset in my Synthesis Report
What is a better structure to skip the warmup (first threadrun) from my results?
If you want to just remove 1st execution of each sampler for each thread (virtual user) you can play the following trick:
Add JSR223 PostProcessor as a child of the request you want to ignore (or according to JMeter Scoping Rules if you want to remove the first execution of other samplers)
Put the following code into "Script" area:
if (vars.getIteration() == 1) {
prev.setIgnore()
}
where:
vars - is a shorthand for JMeterVariables class and getIteration() function returns the current Thread Group loop number
prev - is a shorthand for the SampleResult class and setIgnore() function tells JMeter to discard the result
Related
Before test, I added x variables to TestPlans,
After I run test as 10 thread 10 seconds ramp up
In while controller for condition that
${__javaScript("${x}" != "",)}
In beanshell:
vars.put("x","");
Normally, each thread occured 1 second, First thread changed x variable as "", therefore another threads don't meet if condition. why do threads get looped though ?
Note: Other threads did not start testing when using property instead of variable.
As per JMeter documentation:
Properties are not the same as variables. Variables are local to a thread; properties are common to all threads
so when you do vars.put("x",""); you change x variable value only for the current thread, other threads have their own values of the x variable.
If you want to amend the value so it would be visible for all threads - you will have to:
Change vars.put("x",""); to props.put("x","");
In the While Controller ${__javaScript("${__P(x,)}" != "",)}
Also: since JMeter 3.1 it's recommended to use JSR223 Test Elements and Groovy language for scripting so it worth considering migrating (the same applies to __javaScript() function in the While Controller), more information: Beanshell vs. JSR223 vs. Java For JMeter: Complete Showdown
I have a Thread Group with 10+ requests in same hierarchy.
I added Duration Assertion for all and it's working fine, except in 1 case:
If server is upload before test, first request failed due long duration caused by a server startup delay.
How can I ignore assertion in first request on the first execution?
You can add a JSR223 Listener to your Test Plan and use the code like:
if (prev.getSampleLabel().equals('First Sampler') && vars.getIteration() == 1) {
prev.setSuccessful(true)
}
It will mark the sampler with label of First Sampler as successful if it fails during first Thread Group iteration.
prev stands for SampleResult class instance, check out JavaDoc for available functions and properties. For example you might be interested in getAssertionResults()
I have a Test Plan, that executes multiple Thread Groups consequtevly - But for one of these Thread Groups I want to be executed once and on next Test Plan exection it should be ommited. Is this possible?
You can implement it as follows:
Put all the requests in your Thread Group under the If Controller and use the following expression as the "Condition"
${__groovy(!new File('somefile').exists(),)}
Add a JSR223 Sampler at the end of your Thread Group and put the following code into "Script" area:
new File('somefile').createNewFile()
If Controller checks for somefile file presence in JMeter's "bin" folder (or whatever is your current working directory) and if there is no file in it - its children will be executed.
JSR223 Sampler creates this somefile when it's being executed so next time you will run your test the condition will not be met and Thread Group will skip all its samplers. If you will need to re-enable the Thread Group - just delete this somefile
Not sure if I fully understood your requirement. If you would like to ignore a specific thread group dynamically , then you could pass the 'number of threads/users' for the thread group to 0 using properties.
more information is here - http://www.testautomationguru.com/jmeter-manage-test-plan/
I Have a setUp Thread group in which i am creating A resource with unique Id,path it will give me a url to test
In main Test group I have to Test each url created in setupthread group needs to be rigorsly tested.
testplan
In tearDown thread group i need to clear the setupgroup creation .
The problem i am facing is , the property value is getting overridden
Suppose say in SetUpthread group i have created 10 resources then its the last resouce always the mainTest thread group is getting executed
I am looking for a way foreach setupThread group resource the mainTest theadgroup must execute the no of times i specified in the TheadCount and LoopCount
eg: setUpThread group ThreadCount is 10 and Loop count is 10 then i will get 100 different unquie resources would be created then its the mainTest ThreadGroup
100 TC , 100 LC i.e., for each resource its 10000 times gets invoked .
please help me in acheiving this attached pic
You can take a look at http://jmeter-plugins.org/wiki/InterThreadCommunication/ plugin.
This will help in your case. Let me know if this works.
It is hard to suggest anything without having your test plan itself so here is just an approach, I don't guarantee that it'll work, however the idea should be fine.
You need to set up as many properties as many URLs you would like to be hit in the main thread group.
For instance, if you write some URL down in JSR223 Sampler using __counter() function output as postfix like:
This will generate the following properties:
URL_1=http://some.url
URL_2=http://some.other.url
etc.
After that in 2nd Thread Group you can add another JSR223 Sampler to convert JMeter Properties to JMeter Variables like:
Enumeration e = props.propertyNames();
while (e.hasMoreElements()) {
String propertyName = e.nextElement().toString();
if (propertyName.startsWith("URL_")) {
vars.put(propertyName, props.getProperty(propertyName));
}
}
Then you should be able to use ForEach Controller to iterate the variables.
Also make sure you use Groovy as JSR223 PostProcessor and Sampler language
I have a Bean shell preprocessor which ends up setting up some global variables like host name and the path according to the value that the user passes.
The variables that the bean shell sets would be used by all the thread group.
Currently i've placed my BS pre-processor outside a thread and it runs perfectly..
The issue is that it runs for every thread which isn't performance friendly.
I just want it to run once at the start of the Test plan to improve performance.
I tried to put it into a setUp thread but it doesn't work.
Is there something other that the BS-preprocessor that i can use which would be performance effective(which runs only once for the entire plan rather than for every thread).
You can put it under If Controller and use the following condition:
${__BeanShell(vars.getIteration() == 1)} && ${__threadNum} == 1
You can use setUp Thread Group which is designed for executing pre-test actions but in that case change all occurrences of vars.put() to props.put() as JMeter variables scope is limited to current thread group only and Properties are global for the whole JVM instance. See How to Use Variables in Different Thread Groups guide for additional information
JMeter SetUp thread group and TearDown thread group are meant for exactly this. These threads run at the start and the end of test plan. So, just add Setup thread group and add beanshells into. See links for more information:
http://jmeter.apache.org/usermanual/component_reference.html#setUp_Thread_Group
In the other hand, vars are limited for each thread groups. Use props to put a value which is shared with all thread groups.
This worked for me... Just configure a User Defined Variable called firstTimeIndicator and set the value to 1
String firstTimeIndicator = "";
firstTimeIndicator = vars.get("firstTimeIndicator");
if (firstTimeIndicator.equals("1")) {
log.info("The code inside the if statement executes once per test run...");
firstTimeIndicator = "0";
vars.put("firstTimeIndicator",firstTimeIndicator);
}
log.info("The code after the if statement executes once per thread");