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Subject: thread group scheduler confusion...
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From: Greg.Peace@MDSUK.COM
Date: Sun, 7 Aug 2005 10:21:50 +0100
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Hi I'm new to all this so please forgive me if the answer is obvious and=20
I'm just being daft.

I've got two test plans, one for testing our application (a)  and one our=20
database (b). My test plans have the following structure (really there are =

30 thread groups but the ideas the same)

Tesplan
      Thread group 1
          SimpleController
                For test plan (a) HTTP Request
                For test plan (b) JDBC Requests
=20
      Thread group 2
          SimpleController
                For test plan (a) HTTP Requests
                For test plan (b) JDBC Requests
=20

The thread groups contain different Config elements depending on the=20
testplan; ie for testplan (a) HTTP Request Defaults and HTPP Cookie=20
Manager. Whilst for testplan (b) I have JDBC Database login Defaults and=20
JDBC Database Connection Pool Defaults.=20

The thread groups properties have the forever and scheduler boxes ticked.=20
The scheduler configuration has the start and end time are say 10 minutes=20
apart but the same for both thread groups. The Duration is left blank, and =

the startup delay is set at 0.5 for thread group 1 and 120 for thread=20
group 2. Ie I want the second thread group to start 2 minutes after the=20
first and both thread groups to end at the same time.

The tests are automated from an ant script with my resultlog/output format =

set as xml. In my Jmeter properties file I have=20
sampleresult.timestamp.start=3Dtrue.

The confusion comes when I start looking at the results. For testcase (a), =

ie the one with the HTTP requests all looks fine. I start getting the=20
second thread group's requests 2 minutes after the first thread group.=20
However from testcase (b) there's no delay between thread group 1 and 2.=20
I've got a work around, by chaging the starttime for each subsequent=20
thread group to be later however I'd like to understand why my startup=20
delay wasn't working for me in the JDBC test.

Thanks for your time and help

Greg Peace

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