This is how the test script is designed. One thread group has multiple transaction controllers. Under each transaction controller there is a GraphQL request.
My question is say this test is executed for 500 threads so will all the requests under different transaction controllers be executed simultaneously i.e. will Request 1, Request 2 and Request 3 be executed concurrentlyClick to see image
It depends, each JMeter thread (virtual user) executes Samplers or in your case Transaction Controllers containing Samplers upside down and waits for the previous response before executing the next request.
If you have 500 concurrent users there is a chance that requests 1-3 will be executed at the same time, but they will be executed by different users.
In case you need to execute all 3 requests at the same time by 1 user - put them under Parallel 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 have a thread group with 2 http requests, the first one is for the user to log in and have two regular expression extractor so I can extract the credentials.
the second http request should use those credentials in the header.
This is all working except that jmeter is executing all login requests, and after that executes the second request.
I was expecting the login request to execute and after that the second request, and then repeat the whole thing.
Any sugestion?
If you just want to repeat your test flow set in Thread Group
Each thread will execute the test plan in its entirety and completely independently of other test threads. Multiple threads are used to simulate concurrent connections to your server application.
Number of Threads = 1 and Loop Count with the number of times you want to repeat.
This way you will execute the samplers sequentially.
If you set Number of Threads above 1 it will execute test flows in parallel, if you need it you will have to use Synchronizing Timer.
The purpose of the SyncTimer is to block threads until X number of threads have been blocked, and then they are all released at once.
I have written a simple test plan with the following steps
Test Plan
View Results in Table
Aggregate Report
Thread group
Threads: 5
Ramp-up period: 0s
Loop count: 1
Inside Thread Group
A dummy sampler to prove that all threads are running concurrently
HTTP request to upload a file
When I run the above tests, the dummy sampler is executed nearly the same time. However, I realize that only 1 thread can execute the HTTP request to upload file at a time, even when I have multiple threads. So the final result will be Thread 1 upload file -> finish -> Thread 2 upload file ... e.t.c.
Is this a normal behaviour and can I make file upload performs concurrently from multiple threads?
It depends on the number of threads, loop count and ramp-up period. JMeter starts threads within the time frame you specify in "Ramp-up period" input and the threads start executing samplers upside down (or according to the Logic Controllers). When there are no samplers to execute or loops to iterate the thread is being shut down.
If you need to configure JMeter to execute a certain request at exactly the same time by several threads add Synchronizing Timer as a child of this request and configure "Number of Simulated Users to Group by" setting to match the number of simultaneous users
Example execution:
As you can see, Dummy Samplers were started in 2 seconds while HTTP Request samplers were executed at nearly the same moment.
See Using the JMeter Synchronizing Timer article for more information on implementing these "rendezvous points" in JMeter tests
Assume I have two users in Thread Group and want them to fire two requests simultaneously. User 1 - HTTP Request A and User 2 - HTTP Request B.
Any ideas how to implement that ?
To trigger the requests simultaneously, you need to place your each requests in different thread group as shown below.
Also, make sure that in the Test Plan, below option is unchecked.
Above settings will execute the request simultaneously. Below is the sample output.
Just add Synchronizing Timer to your Thread Group and set Number of Simulated Users to Group by to 2 like:
The Synchronizing Timer will pause the first thread until second one is ready to execute the HTTP Request sampler so both threads will be run simultaneously. See Using the JMeter Synchronizing Timer article for more details.
I have 5 threads and each having multiple request (nearly 50).
When I start to execute all threads every thread running fine with all requests but only one thread (Thread3) not executing all required requests.
All my requests are executing through some conditional statement (ex: If TC1=TRUE --> execute).
In Thread 3 all conditions are correctly defined but always running only one request and others are not running, even not throwing any exception/error.
In jmeter log file there is also no exceptions/errors.
All requests (XML) also look to be executed fine.
Is there any way to find why threads are not running in jmeter?