I have login sampler which i just want to run only once to get cookies but other sampler in Thread Group 2 will run multiple times.
Currently when i run plan it run Login also multiple times. How to config Login sampler to run only once?
The easiest is to put the sampler under Once Only Controller, this way it will be executed only during first Thread Group iteration
If your criteria are more complex - go for If Controller where you can specify custom and even multiple conditions for executing the child(ren) sampler(s)
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I have been looking into postman and JMeter for a school project and I know that you can run a postman test and get results using JMeter. I have also been told that the main reason for JMeter is that you can run that test many times in JMeter unlike postman.
Does anyone know how to do this? got any links or resources you can share or just know the answer yourself?
I have been searching online for answers and I have connected the 2 application through using the HTTP(S) Test Script Recorder but this only provides me with 1 result and I have been unable to find anything that talks about using this to run the test many times.
If anyone is able to provide me with a solution it would be much appreciated
First of all you need to convert your Postman test into a JMeter test, the approach is as simple as running test in Postman using JMeter as the proxy:
Configure JMeter for recording. The fastest way is using JMeter Templates
feature
From JMeter's main menu choose File -> Templates -> Recording and click "Create". You should get a Test Plan structure like:
Expand HTTP(S) Test Script Recorder and click "Start"
Prepare Postman for recording.
From Postman's main menu choose File -> Settings -> Proxy and configure it like:
Run your collection in Postman
JMeter should generate relevant HTTP Request samplers under the Recording Controller
Now expand Thread Group and set the desired number of threads (virtual users) and loops (iterations)
Run your test in JMeter
Inspect results using View Results Tree listener
More information: Building a Web Test Plan - Adding Users
After you record the script in JMeter, you can run multiple times in Thread Group element by (increasing Threads Number to run script with multi threads or) increasing Loop Count, if you want to just repeat the script
thread group element controls the number of threads JMeter will use to execute your test. The controls for a thread group allow you to:
Set the number of threads
Set the ramp-up period
Set the number of times to execute the test
My case is-
I have to login in a website and then have to fecth a data.
For that I have created one thread group and created two HTTP request , one for login and one to fetch data.
But I want login HTTP request to HIt one time and data fetching to hit for many Virtual users.
But There is one common thread group for both.
Please help How I can sort out this?
If you need to run all requests after login in parallel, you may use Parallel Controller plugin:
Install JMeter Plugin Manager: Download plugins-manager.jar and put it into lib/ext directory, then restart JMeter.
Open menu Options -> Plugins Manager
Install Parallel Controller & Sampler plugin.
Add the Parallel Controller to the Test Plan: Right click on Thread Group -> Add -> Logic Controller -> bzm - Parallel Controller
Add your request samplers inside Parallel Controller.
Choose your Thread Group and set the number of threads (users) and loop count.
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.
So, if you want to run login sampler just once, set:
Number of Threads (users) to 1
Loop Count to 1
There are also different types of Thread Groups. Check official documentation for more information
JMeter threads (virtual users) are totally independent from each other, they use Thread Local Storage pattern for storing session information and variables therefore if you login with one user - it will be able to fetch the data, the second user will not be able to fetch the data if he isn't logged in.
If you're absolutely sure that you want to share the same login session across multiple virtual users and perform login only once consider the following test setup:
setUp Thread Group with 1 virtual user and 1 loop to perform login
Inter-Thread Communication Plugin to store the session information (i.e. Cookies) and pass it to the normal Thread Group
Normal Thread Group with as many users as you need using the data from the setUp Thread Group
Check out SynchronizationPluginsExample.jmx test plan for reference implementation.
I have an Application where i have to do load test.Its like i have request A and B,and i have to test with 10 users and request should go like first request - A,B ,second request - A,B with ramp up period 0.
Could Any one help on this.I tried doing with Simple controller but the request are sent randomly and fring error
Check the box for "Run Thread Groups Consecutively" in your test plan. It will send your request A and B for first users then for second users and so on.
See this:
If you really need to wait until 1st user is done before starting 2nd one the fastest and the easiest solution would be setting Number of Threads to 1 and loop requests A and B 10 times in your Thread Group configuration.
If for any reason you need to have 10 concurrent users but executing requests sequentially you can go for Inter-Thread Communication JMeter Plugin which allows synchronizing JMeter threads (even residing in different Thread Groups)
The recommended way of installing JMeter Plugins and keeping them up-to-date is using JMeter Plugins Manager
I am trying to create a jMeter script to perform file upload operation to a web application:
Test Plan
Thread Group
Launch application
Login
Navigate
Upload
Logout
In above case when we have multiple thread group then multiple files are getting uploaded. Although my requirement is to perform multiple upload operation (in parallel) in one thread operation.
How can this be done?
You only need one thread group for your requirements. Just set more users in that thread group and don't set ramp-up time. They will all login as fast as they can and do all the steps you have in your test plan. This would be the simplest way.
But, if you want all of them uploading at the exactly same moment, you can add If controller (preferably with While controller) to check if all of them have passed "Navigate" request and then enable the controller once all of them are ready for upload. This can be achieved by setting up counter which is increased when "Navigate" request is done, and once counter is equal to number of users, tell then to upload.
You cannot upload more than 1 file at a time using single thread
You cannot jump over threads number you've defined for the Thread Group
So the options are in:
Use multiple threads and Synchronizing Timer to ensure that file upload is executed at exactly the same moment
Do some scripting with i.e. JSR223 Sampler in order to trigger multiple file uploads from one thread, just like simulating AJAX calls with JMeter
i have one thread group in jmeter and in it i create several http request sampler and when i run this thread group,i found that seems all these http request executed one by one from "view rults tree". So i what to know how can all these http request run concurrently?
My thread group and test plan only need to be executed once one minute,and i use a bat file to run ,command is :
call C:\apachejmeter\bin\jmeter.bat -n -t C:\apachejmeter\app1.jmx -l d:\restmon\restmon.jtl
your prompt reply would be deeply appreciated!!!!!
This is how JMeter works:
JMeter creates threads defined in Thread Group
Threads start executing samplers upside down (default) or according to logic controllers
When there are no samplers to execute and no loops to iterate thread is being shut down
There are several ways to control concurrency:
Playing with ramp-up and run time
Using Synchronizing Timer which is capable of pausing threads until required number is reached and releases them at the same moment of time
Switching to Ultimate Thread Group which provides some extra options to control the load scenario.
I think that Synchronizing Timer is what you're looking for.