I am testing a mobile app, and I have a Thread Group with about 40 HTTP requests, with the first being an access token request. What I want to do is if the access token fails, skip that current thread iteration.
There are at least 3 options:
You can define what action to take on sampler error on Thread Group level
If you need to limit this behavior to one sample add a Result Status Action Handler as a child of the request
If you need to skip current iteration based on certain condition use Test Action sampler in combination with If Controller
Related
I have multiple Simple Controllers under Thread group. All controllers have 1 HTTP request. Only one controller have 3 requests. How can I chain 3 requests in one simple controller to run sequentially.
Test Plan
The screenshot above is my test plan. In v4/bootstrap call I have 3 HTTP requests. Result of these 3 requests is token which I extract from get_v4/restart and then this token used for all other requests. For correct token generation 3 requests from v4/bootstrap call should run sequently. On summary report shown that amount of run 3 requests is different.
Each JMeter thread (virtual user) executes Samplers upside down. The same applies to Simple Controllers.
So you don't need to do literally anything, each thread will execute samplers sequentially as they appear in the Test Plan.
If you have more than 1 virtual user in the Thread Group you might be confused by the "wrong" order of sample results:
However each user is still executing samplers upside down, you can check it by adding __threadNum() function to show the current virtual user's number and __groovy() function calling vars.getIteration() method
You will see that each user executes samplers sequentially and starts over when the last sampler ends and there are iterations still:
I am trying to run http samplers sequentially for multiple requests. Where the output of 1 API response is the input of next API request. My concern is when I run with 5 users (for. e.g), then at given point of time it first executes 1st API with 5 users then second API with 5 users, in this process the API where input is required gets lost. Please help me on this.Actually I have used transaction controller also but here not sequentially api run,so getting file not found exception bcause of first api output response parameter is not passed to second api as a input parameter
I need a solution, where all the samplers are first executed for first user, then for second thread all the samplers are executed and so on.
Each JMeter Thread (virtual user) executes Samplers upside down, if you have 2 samplers each user will always run 1st sampler then it will run 2nd sampler.
You can use __threadNum() function and ${__jm__Thread Group__idx} pre-defined variable in order to verify that the execution order is sequential.
If you want all the users to execute first sampler then all users to execute the second sampler - go for Synchronizing Timer
If you want to get to the reason of the failure try saving the responses using i.e. Simple Data Writer as it might be the case your "first" API fails silently and hence your correlation doesn't extract the value.
I have a JMeter script which makes requests to 5 different endpoints. If there's an error, that thread should be stopped.
However, I would like to retry the request to the 3rd endpoint 3 times before stopping the thread.
Here is what my script looks like:
Thread Group (with Stop thread selected)
HTTP Request (1st endpoint)
HTTP Request (2nd endpoint)
Transaction Controller
While Controller
HTTP Request (3rd endpoint)
JSR223 PostProcessor (to save the response code in a variable for the while controller to check)
Counter (to keep track of the retry count)
JSR223 Assertion (to set the result as successful, so the first failed retries don't count)
HTTP Request (4th endpoint)
HTTP Request (5th endpoint)
Since I checked option Stop thread under Thread Group, if the first request to the 3rd endpoint fails, the thread stops and no retries are made.
If I check Continue, then the retries to the 3rd endpoint work as intended, but the thread doesn't stop if the requests to the other endpoints fail.
I also tried to add the following Groovy script to the JSR223 PostProcessor, but it didn't work:
if (prev.isStopThread()) {
prev.setStopThread(false)
}
I'd appreciate any help I can get.
Thank you!
Just set "Action to be taken after a Sampler error" to Continue in the Thread Group to prevent threads from stopping.
If you decide to stop the thread you can do it in 2 ways:
Via Flow Control Action Sampler (in conjunction with the If Controller)
Via any of your JSR223 Test Elements as
prev.setStopThread(true)
You don't even need a counter, since JMeter 5.0 While Controller exposes current iteration via __jm__While Controller__idx pre-defined variable
I am running my load tests in jmeter. I have login service and a serviceX which is to be tested. I want Authtoken from login service to run serviceX. Token expires every minute. Currently I am having login service in the same thread group and running as much as serviceX. I dont want to continue this. I want to run login service once in every minute in single thread and pass the token to serviceX and ServiceX runs the defined number of threads and time. how to achieve this?
Use Once Only Controller to achieve this. This controller executes the request inside it only once per thread and passes over any other requests under it during further iterations through the test plan.
So, you can put your login service inside the Once Only Controller and serviceX outside of the controller. You have to configure your Thread Group accordingly for the iterations or you can wrap up your serviceX under Loop Controller.
Example:
Say, you want to login your first thread only once and then wants to run serviceX for 10 times, here is the below test plan sample:
Remember, as you want to log in once in a minute and once the only controller works on per thread, so you have to use rampup your thread groups accordingly. Suppose, there are 2 threads, and they will log in in a one-minute interval, then the Thread group configurations will be like:
Now, if you want to run your serviceX for 5 times after the 1st thread login, put your serviceX under the loop controller scope and the loop count value to 5
This is the results of this sample test plan:
Hope this helps!
If you use only one token across all threads (virtual users) it makes sense to add another Thread Group with 1 thread and infinite number of loops to your Test Plan and add a HTTP Request sampler to it along with the relevant Post-Processor to extract the token. Also add a Constant Timer to add pauses between requests, i.e. use 55000 milliseconds as the thread delay value.
Once you have the token you can convert it into a JMeter Property via __setProperty() function
In your "main" Thread Group you can read the current token value using __P() function
My application is not allowing to execute one of the HTTP sampler by multiple threads at a time and throwing "RECORD_LOCKED" exception. So please suggest how to create synchronized sampler(should be execute only one thread at a time ) to solve this issue.
Assume below are my samplers in Thread group and I want to run this thread group with 10 threads. But the 2nd HTTP sampler should be executed by only one thread group at a time. After login completion(2nd sampler) of one thread then only another thread should execute that sampler.
Thread Group 1
Login page HTTP Sampler
Enter UserName / Password and click on Login HTTP Sampler
Home Page View HTTP Sampler
To Lock the specific Sampler from other threads use the controller:
Right click the HTTP Sampler-> Insert Parent -> Logic Controller -> Critical Section Controller
Critical Section Controller ensures that its children elements (samplers/controllers, etc.) will be executed by only one thread