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Posted to jmeter-dev@jakarta.apache.org by bu...@apache.org on 2006/05/08 16:18:21 UTC
DO NOT REPLY [Bug 39509] New: - Once-only controller running twice
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Summary: Once-only controller running twice
Product: JMeter
Version: 2.1.1
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: normal
Priority: P2
Component: Main
AssignedTo: jmeter-dev@jakarta.apache.org
ReportedBy: toxic.monkeys@virgin.net
The samples within the first Once-only controller contained within an
Interleave controller run twice. Any following Once-only controllers within
the Interleave controller correctly run once.
The interleave controller contains 3 once-only controllers, each containing 2
http requests. These are followed by 7 http requests.
I have also tried this on the 08 May 2006 build and get the same results.
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DO NOT REPLY [Bug 39509] - Once-only controller running twice
Posted by bu...@apache.org.
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------- Additional Comments From alf@i100.no 2007-05-14 06:42 -------
Created an attachment (id=20192)
--> (http://issues.apache.org/bugzilla/attachment.cgi?id=20192&action=view)
Unit test patch
This patch is meant as a help if someone picks up the work on this bug.
It is a slight restructuring of the current tests, plus a failing test, to
expose the problem reported on the InterleaveController and OnlyOnceController.
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DO NOT REPLY [Bug 39509] - Once-only controller running twice
Posted by bu...@apache.org.
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------- Additional Comments From alf@i100.no 2007-05-14 06:39 -------
(In reply to comment #2)
> Created an attachment (id=20179)
--> (http://issues.apache.org/bugzilla/attachment.cgi?id=20179&action=view) [edit]
> Test plan to show the bug
>
I have not been able to make a patch for this problem, mainly because I am not
sure how the correct behaviour would be.
Below is some of my thoughts after working on this, in case someone else are
going to have a look at this bug.
To me, the problem seems to be related to InterleaveController, and the way that
controller increases iteration count, and is being reinitialized.
The OnlyOnceController has an if test : "if (event.getIteration() == 1) {".
But for the InterleaveController, the first "iteration count" is 0, while for
LoopController it is 1, because LoopController overrides "getIterCount".
The "InterleaveController" also never resets the iteration count, so you will
only once get the "iteration count" equal to 1 from a InterleaveController.
The LoopController resets the iteration count, so for each time the loop is
entered, the OnlyOnceController is executed.
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DO NOT REPLY [Bug 39509] - Once-only controller running twice
Posted by bu...@apache.org.
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------- Additional Comments From sebb@apache.org 2007-12-05 15:00 -------
Once Only also behaves oddly under a Simple Controller - which one would
expect to be equivalent to a Loop Controller with count=1 - the OO should run
each time round the thread group, but it only runs twice.
Test plan to follow.
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DO NOT REPLY [Bug 39509] - Once-only controller running twice
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------- Additional Comments From alf@i100.no 2007-05-11 06:37 -------
Created an attachment (id=20179)
--> (http://issues.apache.org/bugzilla/attachment.cgi?id=20179&action=view)
Test plan to show the bug
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DO NOT REPLY [Bug 39509] - Once-only controller running twice
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------- Additional Comments From sebb@apache.org 2007-12-07 16:29 -------
The Once Only Controller needs to to know the state of its parent; this is
currently achieved via the iterationStart() method.
Unfortunately, not all Controllers actually call this method, and the
iteration count is not consistent - e.g. Loop Controller goes from 1 to
loopmax, and repeats when the loop repeats, whereas for the Simple Controller,
it starts at 0, and increments continually.
The behaviour of the OOC when part of a looping controller seems fairly well-
defined - and it performs as documented. But how should it behave as part of
other non-looping controllers? This does not seem to be well defined, nor does
it seem obvious how it should behave...
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DO NOT REPLY [Bug 39509] - Once-only controller running twice
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------- Additional Comments From sebb@apache.org 2006-05-20 20:31 -------
Confirmed.
A simple workround is to add a dummy sampler before the first Once Only
controller (e.g. Test Action)
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DO NOT REPLY [Bug 39509] - Once-only controller running twice
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------- Additional Comments From sebb@apache.org 2007-12-05 15:07 -------
Created an attachment (id=21233)
--> (http://issues.apache.org/bugzilla/attachment.cgi?id=21233&action=view)
Test showing diff behaviour of loop=1 and Simple Cont.
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