[Bug 57357] New: CSV Data Set Config tends towards threads using same lines

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=57357

            Bug ID: 57357
           Summary: CSV Data Set Config tends towards threads using same
                    lines
           Product: JMeter
           Version: 2.12
          Hardware: PC
            Status: NEW
          Severity: normal
          Priority: P2
         Component: HTTP
          Assignee: issues@jmeter.apache.org
          Reporter: nicholaspmgodfrey@gmail.com

Created attachment 32296
  --> https://issues.apache.org/bugzilla/attachment.cgi?id=32296&action=edit
Fiddler trace where bunching can be seen after a while

I've got a fairly simple script and want to run it with 5 threads. I have data
set to 'All Threads' nad a ramp up time of 120 seconds and things start of
fine. But after a while, I start to see bunches of the same calls, ultimately
in bunches of the number of threads - so bunches of 5 in this case. This takes
a while to develop but I can clearly see it in a Fiddler trace. I tried version
2.10 and it's doing the same thing. I also have a timer in the script and tried
a gaussian random timer but am still getting the same pattern developing over
time. Attaching a Fiddler screenshot. I tried it with unique data as well (so
not expecting any duplicates) but still get the effect.

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[Bug 57357] CSV Data Set Config tends towards threads using same lines

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=57357

Philippe Mouawad <p....@ubik-ingenierie.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
                 CC|                            |p.mouawad@ubik-ingenierie.c
                   |                            |om
                 OS|                            |All

--- Comment #1 from Philippe Mouawad <p....@ubik-ingenierie.com> ---
Hi,
Can you create a simple Test plan based on Debug Sampler and CSV Dataset
showing issue ?

Thanks

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[Bug 57357] CSV Data Set Config tends towards threads using same lines

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=57357

--- Comment #2 from Nicholas Godfrey <ni...@gmail.com> ---
Hi, I was just about to answer you and I have found the problem. It's my code
I'm afraid. I have a model I am developing (here:
http://www.webwob.com/html/jmeter_raw_.html ) and I made a mistake by storing
the adjusted_url in a system property. It should be in a local variable of
course. I didn't think of threads at the time. I'll fix this now so don't
bother downloading that project just yet. can you close this bug. Thanks. (user
error).

Nick

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[Bug 57357] CSV Data Set Config tends towards threads using same lines

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=57357

Nicholas Godfrey <ni...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |INVALID

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