My requirement is to ALWAYS validate the input test data before firing the main sampler with that. Given that, I am using throughput shaping timer, I do not want to process the input in another sampler before passing it to the main sampler inside an IF controller. (Since the input processing sampler gets counted against the throughput)
I am trying to set TestLogicalAction programmatically inside a pre-processor for this.
The below line is working properly if I use it inside an assertion.
SampleResult.setTestLogicalAction(TestLogicalAction.START_NEXT_ITERATION_OF_THREAD);
But a variant of the same line is NOT working inside a pre-processor
Attempt1:
ctx.getPreviousResult().setTestLogicalAction(TestLogicalAction.START_NEXT_ITERATION_OF_THREAD);
Attemp2:
ctx.setTestLogicalAction(TestLogicalAction.START_NEXT_ITERATION_OF_THREAD);
Both the attempts are not throwing any errors. But they are not skipping the sampler execution after the pre-processor. How can I achieve this inside a pre-processor?
Related
I currently have a loop that executes a bunch of queries via JDBC request samplers. They should all share a random ID that changes on every loop.
I tried using the beanshell script and JSR223 PreProcessor. But the PreProcessor gets executed before every single JDBC reuqest sampler, not once per loop. I feel like there is an obvious fix to my problem that I am missing.
I also tried putting the JSR223 script into an "Only Once Controller". But then the random variable I inject with vars.put() is not visible to the JDBC sampler. Also, as far as i understand the Only Once Controller, it would only execute on the first loop iteration. Which is not what I want.
JSR223 PreProcessor obeys JMeter Scoping Rules so if you put it to be a child of i.e. q_insert1 sampler - it will be executed only once per iteration.
I would also recommend re-considering language selection, since JMeter 3.1 it's recommended to use Groovy for scripting
I am working on setting up a way to do a performance test for the rest API's using Jmeter which includes token expiry for every three minutes.
1.)Currently, I created two thread groups one for making a call to get "access_token" and setting into the property using Bean shell assertion setProperty, to be used in other thread Groups.
2.)I could see Second thread group can access the value set in the first step.
But my goal is to execute the first thread group every 2min 30 seconds continuously so that the second thread group can get the new token every 2 min 30 seconds.
I tried a constant timer, but didn't seem to work is there any way to do this or any other timer to use to achieve this token refresh?
Thanks in advance
The Constant Timer should work, but be aware that it creates a delay before each Sampler it it's scope so it might be the case your setting it up wrong, you can use i.e. a Dummy Sampler and put the Constant Timer as a child of the Dummy Sampler, this way your HTTP Request to get token will be executed, followed by the delay defined in the Constant Timer, followed by the Dummy Sampler, et.c
Example setup:
You might find Flow Control Action sampler easier to use
Also be aware that starting from JMeter 3.1 you're supposed to be using JSR223 Test Elements and Groovy language for scripting. Moreover it's not required to write any code, you can go either for __setProperty() and __P() functions combination or for Inter-Thread Communication Plugin
I have an http request sampler1 and extracting a 'JobID' value using regular expression extractor. Now, i have http request sampler2 to check a job status in the same thread group which uses 'JobID' from previous sampler using regular expression extractor. The sampler2 has a while loop controller with condition ${__javaScript("${Status}"!="Ready",)} which is to say keep executing the sampler until status is Ready.
The issue that i am facing is, when the first sampler fails, the second sampler just takes the variable name and keeps trying and never stops because of the while loop.
the second sampler http request gets formed like:
JobID=%24%JobID%7D&request=****
Is there a way to say stop executing the second sampler when first one fails. Any input on this would be of great help.
This is how JMeter works, each thread (virtual user) executes Samplers upside down (or according to the Logic Controllers)
If you want want to execute 2nd sampler only if first one is successful you need to put your While Controller along with the 2nd sampler under the If Controller and use ${JMeterThread.last_sample_ok} as the condition
Where ${JMeterThread.last_sample_ok} is a pre-defined variable holding the result of the previous Sampler
I want to run code at the beginning that sets up variables, but as far as I can tell, the options for running code are:
Sampler: Appears in JMeter reports and screws up my numbers.
Pre-processor/Post-processor/Assertion: Must be attached to existing sampler.
Timer: This works sometimes, but it appears that if you have your timers higher in the tree than your samplers, they just get ignored.
Listener: Runs after your samplers (I want this code to run before everything else).
Is there a way to run code without modifying reports or attaching it to a sampler?
Add Test Action sampler to the place in the Test Plan where you want to run your code
Add JSR223 PreProcessor as a child of the Test Action sampler
Tick Cache compiled script if available box
Put your code into Script area
This is something you're looking for as
Test Action sampler will not be reflected in the load report:
Each sampler (except Test Action) generates one or more sample results.
Currently Groovy is the best scripting option available in JMeter
See Execution order:
Configuration elements
Pre-Processors
Timers
Sampler ...
For example of Configuration element
The User Defined Variables Configuration element is different. It is processed at the start of a test, no matter where it is placed.
Inside it you can execute JMeter functions which include numerous options as to read from CSV, execute groovy or beanshell code...
You can add your action as a Sampler (no matter JSR223 or anything else) and then add a PostProcessor that will mark this Sampler's result as ignored. It can be done with JSR223 PostProcess with groovy script:
prev.setIgnore()
You can also control whether or not to ignore this sample based on the conditions.
My test configuration :
Loop Controller
--> Beanshell Sampler
vars.put("test", "${__CSVRead(*test,0)}");
Add it to an existing array retrieved from vars.getObject
In the above scenario, I am constructing my request payload dynamically in a loop controller. I had to put the CSVRead function in a separate Beanshell sampler under the loop controller since "${__CSVRead(*test,0)}" was reading the sample line if I use it within a for loop inside the beanshell sampler (interpreted mode).
While the above configuration meets my requirement, my *.jtl files are growing in size even for a 30 minute load test since the BeanShell sampler is getting measured all the time. While I am able to filter the required data by using the FilterResults tool, I want to know how to avoid this during the execution itself like the TestActionSampler
Use one of the following Test Elements instead:
BeanShell PreProcessor
BeanShell PostProcessor
Beanshell Timer
By default Timers and Pre/Post Processors execution time is not included into parent sampler elapsed time (unless you use Transaction Controller explicitly configured to do so), using this approach you will be able to exclude the time, required for constructing payload from test results.
I resolved it by using the following configuration.
Loop Controller
--> Test Action Sampler
--> Beanshell timer returning 0 at the end
vars.put("test", "${__CSVRead(*test,0)}");
Add it to an existing array retrieved from vars.getObject
return 0;