I have test with 40 Threads and all sharing CSV file with 5000 rows. I wan't all these threads use unique row during test no duplication. My Current flow is like this..
Test Plan
CSV Data Set Config (All theads)
OnlineQuote(Thread Group with 40 threads)
Transaction Controller
Submit Transaction (Get data from CSV)
If you are OK to stop test when data set if completely used, just set:
Recycle on EOF = false
Stop thread on EOF = false
Related
I have a task to execute 100K requests using CSV data driven
CSV holds ids
100,
101,
102,
...
In JMeter CSV Data Set Config is saving id variable and call API with ${id}
This is working fine, but I want to execute requests in parallel to reduce time of execution.
It seems that parallel sampler/controller can't be used in this case,
How can this be done using CSV driven test?
In the CSV Data Set Config set "Sharing Mode" parameter to All threads.
In the Thread Group set "Number of Threads" to the desired value
That's it, JMeter will run your requests in parallel and each thread (virtual user) will pick up new line from the CSV file on each iteration as it can be seen using i.e. View Results in Table listener
What I want to do:
I would like to test behavior of the system for 50 users. Each user has to do the same action X times,
with different input ( X - depends on how many records I have in the CSV file, so if the file contains 1000 records, each user will do the action 20 times).
What I actually did to do that:
I set up CSV Data Set Config (with CSV file with 1000 lines) and ofc set up Number of Threads to 50
What is my problem:
Now I'm quite not sure how to share the CSV file so that all user will have unique poll of the lines from the file. (so each user will have his unique lines from the CSV)
What can I do to workaround:
I can copy thread groups to make 50 thread groups, and add them separated CSV files, but it sounds ridiculous...
Given you set the following values in the CSV Data Set Config
Recycle on EOF: False
Stop thread on EOF: True
Sharing mode: All threads
then each thread (virtual user) will fetch new value(s) from the CSV file which will guarantee uniqueness of the test data
You can check this yourself by using __threadNum() function and ${__jm__Thread Group__idx}; variable
More information: CSV Data Set Config in Sharing Mode - Made Easy
In thread group under thread properties, we can set
number of threads = 50
ramp up period = 1
loop count = 20
So, here each thread after a sec will take next line from csv file and execute it.
This way the same csv file will be shared among different threads.
I would recommend to create multiple CSV files for your test plan and assign the variables accordingly for smooth execution of the script. Using same CSV file can not solve the problem as there are times when few threads executing much faster and others are slow in that case action will start replicating between different threads.
We are trying to establish no of threads depending on the number of columns present in a csv file, and each thread should pick up data from respective rows of those columns.
can someone help us out in achieving the same.
So from the attached screenshot we would want 6 threads to be established and thread1 should be posting data under user1 itself, thread2 from user2 and so on.
To achieve this you can use CSV Data Set Config
How to set CSV Data Set Config?
Right Click on thread group
Navigate to Add > Config element
Click on CSV Data Set Config
Create one csv or txt file and CSV Data set config as per below attached screenshot.
Whenever you want to user your values, just provide ${user1}, ${user2} and so on.
For more details you can refer CSV Data Set Config from user manual.
Using ${path} in the 'Paths:' and providing the CSV file location in the 'Filename' under CSV Data Set Config, I am able to get a single user accessing the URL's one after the other from the CSV file.
But to complete my test, I want to get 1000 users access 1000 URL's concurrently to demonstrate the maximum load on a Database server. Please advice.
I am on Jmeter5.0
Define CSV Data Set Config with (default) Sharing mode All threads -
(the default) the file is shared between all the threads.
In same hierarchy of the sampler
Define in Thread Group Number of Threads: 1000
And execute test while each thread get different line/values from CSV
If you want to have "bursty load":
Set "Number of Threads" under your Thread Group to 1000
Add Synchronizing Timer as a child of your HTTP Request sampler and set "Number of Simultaneous Users to Group by" to 1000
So your test plan would look like:
It will execute 1000 requests at exactly the same moment and stop
If you want "prolonged load" - just let your Thread Group to iterate "Forever". You can limit test duration using "Scheduler" input:
It will execute requests with 1000 virtual users as fast as it can for 10 minutes
Hi I am new to JMeter.
Is it possible that I can input a CSV file (with 25 rows of unique customerID number) and use many HTTP (GET) URL request simultaneously for every row in the csv file?
Thank you for your response in advance.
Assuming that you have one thread group, with n threads, what you describe is the default behavior of CSV data set when you set the sharing mode to All threads. Every thread, will pickup the customer id from next line of the file.
Please see following link for details.
http://jmeter.apache.org/usermanual/component_reference.html#CSV_Data_Set_Config