On 09/11/2007, kingt <[EMAIL PROTECTED]> wrote:
>
> Dear all,
>
> As I need to stress a cluster of Tomcat servers, using a single JMeter seems
> insufficient.

Have you tried using a single JMeter instance?

> I decide to try the JMeter remote testing.
>
> Since I have to test the web application LRU cache behavior, the input
> sequence of the requests (each would access a cached web object) is
> important to me.
>
> My input parameters carried on the requests are stored in a CSV file - like
> a proxy trace log. So I used the CSV data config component to drive the
> workload. I wish to ask - under distributed mode, will each client machine
> feed alternate requests in coordinated manner or just feed redundant request
> samples at about the same instant as if each client has the same replica of
> the CSV file to the cluster?

The CSV file needs to be present on each server host; each server will
read its own copy.

I suggest you partition the requests so each server exercises its own
set of URLs.

> Below example is to make it clear, suppose 3 remote clients are used and the
> CSV list is
> A
> B
> C
> D
> E
> F
> ....
>
> Which of the following patterns will the request injection be:
> Client0    Client1    Client2    Client3
> ------    -------    ------    -------
> A           B            C           D
> E           F            G           H
> ...

No

>
> or
>
> Client0    Client1    Client2    Client3
> ------    -------    ------    -------
> A           A            A           A
> B           B             B           B
> C           C            C           C
> ...

Yes

>
> I am also interested the answer to the same question for other components
> like cookie manager.

Each server runs independently.

The client JMeter collects and merges sample results from each server,
but there is no other co-operation between JMeter instances.

It would not make sense for the cookie manager to be shared between
JMeter instances - indeed cookies are not even shared between threads
in the same instance, because threads represent separate users.

> Thanks a lot for your help!
>
> --
> View this message in context: 
> http://www.nabble.com/JMeter-Distributed-%28Remote%29-Testing-vs.-CSV-Data-Config-tf4778362.html#a13669189
> Sent from the JMeter - User mailing list archive at Nabble.com.
>
>
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