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From Subhadip Bagui <i.ba...@gmail.com>
Subject Re: how to send unique data for each thread in jmeter
Date Sat, 12 Sep 2015 19:43:26 GMT
http://stackoverflow.com/questions/32240287/how-to-send-unique-data-for-each-thread-in-jmeter

Regards,
Subhadip

-------------------------------------------------------------------------------------------------------------------

On Thu, Aug 27, 2015 at 8:13 PM, Deepak Shetty <shettyd@gmail.com> wrote:

> I tried the CSV data set config - works fine for me - The summary report
> always shows 10000 unique requests.
>
>
> https://onedrive.live.com/?id=1BD02FE33F80B8AC!957&cid=1BD02FE33F80B8AC&group=0
> Sample script and CSV file uploaded at link (CSV needs to be in a folder
> data relative to wherever your script is)
>
> regards
> deepak
>
> On Thu, Aug 27, 2015 at 7:29 AM, Deepak Shetty <shettyd@gmail.com> wrote:
>
> > Please note - none of your images made it through to the mailing list -
> > Please upload the images somewhere and specify the link
> > 1) For CSV data set config : Is your sharing model set to all threads?
> > Assuming you have verified that the CSV itself has unique values , check
> > that Recycle on EOF is set to False (in case you have a problem in your
> > script this will check that if for e.g. your file is being reread you
> will
> > know that.
> > 3) Random numbers are not guaranteed to be unique. However you can use
> > schemes like using a UUID (e.g.
> > http://docs.oracle.com/javase/7/docs/api/java/util/UUID.html)  or by
> > using a scheme like Thread ID + Timestamp + (plus ensure a delay of 1 ms
> > between requests made by the same thread by a timer or add a random
> number
> > or so). In your case even something like thread number + loop count
> should
> > work.
> > 4) Calling a java method should also work - provided you have written
> code
> > that works when invoked concurrently (in which case did you test that ,
> and
> > how?)
> >
> >
> >
> > On Wed, Aug 26, 2015 at 11:36 PM, Subhadip Bagui <i.bagui@gmail.com>
> > wrote:
> >
> >> I'm using jmeter to test my REST API for 10000 hit for which each http
> hit
> >> will store some data in DB. I have followed the below test plan
> >>
> >> [image: enter image description here]
> >>
> >>
> >> I'm running 10 threads in parallel with ramp up time 20 sec each and
> loop
> >> count 1000 to achieve the same.
> >>
> >> [image: enter image description here]
> >>
> >> But the issue here is my threads are not taking unique data set. Whereas
> >> my
> >> backend HTTP URL expecting unique string for each http hit.
> >>
> >> Now I have tried with the below approaches.
> >>
> >>    1.
> >>
> >>    Single CSV data set config with 10000 unique values and all threads
> in
> >>    thread groups are reading the same data.
> >>    2.
> >>
> >>    Different CSV Data set for each threads and allocate the csv file
> with
> >>    thread using filename${__threadNum}.csv
> >>    3.
> >>
> >>    Using jmeter _RandomString method to generate random strings on
> runtime
> >>    for each http hit, in http post body I'm passing like
> >>
> >>
> >>
> {"tenantName":"${*__RandomString*(15,abcdefghijklmnofqrst1234567#@#%^&*,)}"}
> >>
> >>    1. Using BeanShell preprocessor to call a java method and generate
> >>    unique pattern all the time win HTTP Request sampler.
> >>
> >> Now none of the above approaches works for me. While running the test
> plan
> >> after some point of time 2 threads are trying to use the same data and
> hit
> >> my HTTP url. And I'm getting conflict error from http response. My error
> >> count keeps increasing.
> >>
> >> Now I really don't understand how these 2 treads trying to hit http with
> >> same data?
> >>
> >> Can some one please explain the issue and help me to set the correct
> test
> >> plan configuration.
> >>
> >>
> >> Regards,
> >> Subhadip
> >>
> >>
> >>
> -------------------------------------------------------------------------------------------------------------------
> >>
> >
> >
>

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