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Posted to jmeter-dev@jakarta.apache.org by bu...@apache.org on 2007/06/29 12:40:49 UTC
DO NOT REPLY [Bug 42778] New: - Samplers reliably skipped by ThreadGroup iterator (r550144)
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Summary: Samplers reliably skipped by ThreadGroup iterator
(r550144)
Product: JMeter
Version: Nightly (Please specify date)
Platform: PC
OS/Version: Linux
Status: NEW
Severity: major
Priority: P2
Component: Main
AssignedTo: jmeter-dev@jakarta.apache.org
ReportedBy: tim-asf@baverstock.org.uk
Within the following attached script, HTTP samplers 2 and 4 are reliably
skipped, when they should be being executed. I came across this in nightly build
r541884, but it also happens in r550144.
I spent a couple of days trying to track this down, and isolated it to something
strange within the call to controller.next() in JMeterThread:run() when it
leaves the IfController and starts sniffing the SimpleController after it: the
sequence manages to set the TransactionSampler to be its own subsampler, instead
of the HTTPSampler it initially gets hold of.
I have the vague idea that it's a flaw around nextIsAController, but I don't
understand what the various methods think they're supposed to be doing. (I
couldn't find any useful documentation; if there is some, I'd be interested to
know where it is, for future reference.)
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DO NOT REPLY [Bug 42778] - Samplers reliably skipped by ThreadGroup iterator (r550144)
Posted by bu...@apache.org.
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------- Additional Comments From tim-asf@baverstock.org.uk 2007-06-29 03:43 -------
Created an attachment (id=20419)
--> (http://issues.apache.org/bugzilla/attachment.cgi?id=20419&action=view)
A simple script whose second and fourth HTTP samplers are unexpectedly skipped
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DO NOT REPLY [Bug 42778] - Samplers reliably skipped by ThreadGroup iterator (r550144)
Posted by bu...@apache.org.
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------- Additional Comments From sebb@apache.org 2007-06-29 04:45 -------
There are some errors reported in the log file; this is due to the If
Controller condition which is incorrect. Disabling the If Controller (which
does nothing anyway) allows HTTP-2 to work.
HTTP-4 still fails to run - there is another error in the log file which I
will investigate.
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DO NOT REPLY [Bug 42778] - Transaction Controller skips sample (NPE)
Posted by bu...@apache.org.
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sebb@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
Summary|Samplers reliably skipped by|Transaction Controller skips
|ThreadGroup iterator |sample (NPE)
|(r550144) |
------- Additional Comments From sebb@apache.org 2007-06-30 08:16 -------
Thanks, that works fine.
Patch has been committed in r552158.
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DO NOT REPLY [Bug 42778] - Transaction Controller skips sample (NPE)
Posted by bu...@apache.org.
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<http://issues.apache.org/bugzilla/show_bug.cgi?id=42778>.
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------- Additional Comments From sebb@apache.org 2007-06-30 08:20 -------
(In reply to comment #0)
> I have the vague idea that it's a flaw around nextIsAController, but I don't
> understand what the various methods think they're supposed to be doing. (I
> couldn't find any useful documentation; if there is some, I'd be interested
to
> know where it is, for future reference.)
AFAIK, there's only the code.
It could do with more Javadoc, and an explanatory package.html, as it's pretty
complicated.
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DO NOT REPLY [Bug 42778] - Samplers reliably skipped by ThreadGroup iterator (r550144)
Posted by bu...@apache.org.
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------- Additional Comments From alf@i100.no 2007-06-30 02:40 -------
Created an attachment (id=20422)
--> (http://issues.apache.org/bugzilla/attachment.cgi?id=20422&action=view)
Suggested patch
Thanks for finding and reporting this bug.
This patch solves the problem for both the two attached test scripts.
The problem was that the TransactionController did not return the next real
sampler or controller, but instead returned the TransactionSampler, which was
incorrect.
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DO NOT REPLY [Bug 42778] - Samplers reliably skipped by ThreadGroup iterator (r550144)
Posted by bu...@apache.org.
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sebb@apache.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #20419|0 |1
is obsolete| |
------- Additional Comments From sebb@apache.org 2007-06-29 04:59 -------
Created an attachment (id=20420)
--> (http://issues.apache.org/bugzilla/attachment.cgi?id=20420&action=view)
Transaction controller with and without simple controller
I've attached a simpler test case which shows the problem - the nested Simple
Controller seems to be causing problems for the Transaction Controller.
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