Run sampler in only one thread at a time.

[Ronan Klyne <ro...@groupbc.com>]

Hi all,

I have a scenario to test in which there is one controller user and many 
subordinates. Each user is only allowed to log in from one place at a 
time (only one cookie string will be valid at once).

I would like the subordinates to be able to send reports to the 
controller, and then verify that the controller recieved them. In order 
to compare the posted data with the controllers page, I have my 
subordinates log out, then, in that thread, log in as the controller to 
verify that the information was sent correctly. After this is done, the 
thread will log out of the controller account and continue it's 
subordinate work.

Is it possible to put some kind of synchronisation in my test plan such 
that only one thread at a time is allowed to run the controller samples?

Thanks,

    Ronan

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Re: Run sampler in only one thread at a time.

[Ronan Klyne <ro...@groupbc.com>]

Deepak Shetty wrote:
> hi
> as far as I know , you cannot directly do this in JMeter.
> However if you get an identifiable error message when your controller user
> attempts to login (if there is already a controller logged in), then you
> might be able to poll in a loop.
>   
Unfortunately, logging in a second time will invalidate the first 
session, and the tests using that first session will fail.

I'm starting to think about using a Beanshell timer and post-processor 
to manage a semaphore type lock, but that's really hacky and prone to 
errors.
The same could be said for writing a CGI script to handle the 
synchronisation with delayed http responses and sampling that.

> I guess you could also decouple the controller as a separate thread group
> and base a final test on how many reports he received v/s how many he should
> have
>   
I'd like to be able to do this in the same thread so as to have the 
posted data in memory when I do the comparison. I suppose that I could 
always write that out to a file....

> regards
> deepak
>
>
> On Mon, Oct 19, 2009 at 8:03 AM, Ronan Klyne <ro...@groupbc.com>wrote:
>
>   
>> Hi all,
>>
>> I have a scenario to test in which there is one controller user and many
>> subordinates. Each user is only allowed to log in from one place at a time
>> (only one cookie string will be valid at once).
>>
>> I would like the subordinates to be able to send reports to the controller,
>> and then verify that the controller recieved them. In order to compare the
>> posted data with the controllers page, I have my subordinates log out, then,
>> in that thread, log in as the controller to verify that the information was
>> sent correctly. After this is done, the thread will log out of the
>> controller account and continue it's subordinate work.
>>
>> Is it possible to put some kind of synchronisation in my test plan such
>> that only one thread at a time is allowed to run the controller samples?
>>
>> Thanks,
>>
>>   Ronan
>>
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>> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
>> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>>
>>
>>     
>
>   


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Re: Run sampler in only one thread at a time.

[Deepak Shetty <sh...@gmail.com>]

hi
as far as I know , you cannot directly do this in JMeter.
However if you get an identifiable error message when your controller user
attempts to login (if there is already a controller logged in), then you
might be able to poll in a loop.

I guess you could also decouple the controller as a separate thread group
and base a final test on how many reports he received v/s how many he should
have
regards
deepak


On Mon, Oct 19, 2009 at 8:03 AM, Ronan Klyne <ro...@groupbc.com>wrote:

> Hi all,
>
> I have a scenario to test in which there is one controller user and many
> subordinates. Each user is only allowed to log in from one place at a time
> (only one cookie string will be valid at once).
>
> I would like the subordinates to be able to send reports to the controller,
> and then verify that the controller recieved them. In order to compare the
> posted data with the controllers page, I have my subordinates log out, then,
> in that thread, log in as the controller to verify that the information was
> sent correctly. After this is done, the thread will log out of the
> controller account and continue it's subordinate work.
>
> Is it possible to put some kind of synchronisation in my test plan such
> that only one thread at a time is allowed to run the controller samples?
>
> Thanks,
>
>   Ronan
>
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> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>
>