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From Philippe Mouawad <philippe.moua...@gmail.com>
Subject Re: Distributed testing - Memory usage
Date Thu, 29 Sep 2011 12:57:49 GMT
Hello,
You OOM is related to bug in HTTP HC4 implementation that is fixed in
2.5.1-RC3.

So using nightly build will fix your issue.
But please confirm it does.

Regards
Philippe

On Thu, Sep 29, 2011 at 2:46 PM, Philippe Mouawad <
philippe.mouawad@gmail.com> wrote:

> Hi again,
> Thanks for your post I will review it as soon as I have time.
> Can you run your test with last trunk version ? See nightly builds
> 2.5.1-RC3
>
> From my tests, I don't reproduce your issue with what you specified on
> Trunk version:
>
>    - 5 Threads
>    - 10000 iterations
>    - 15 HTTPClient going to jakarata site
>    - Constant Timer
>    - -l option
>
> So either we fixed it either there is something more in your JMX.
>
> Regards
> Philippe
>
>
> On Thu, Sep 29, 2011 at 2:36 PM, poox <rb@bancha.net> wrote:
>
>> Hi Philippe, thanks for your response.
>>
>> I already had the HeapDump setup as requested, here's a link to one of the
>> many I have from testing:
>>
>> http://www.mediafire.com/?r4xqa08chm6y5cq
>>
>> With regard to your questions:
>>
>> - I have tried differnt numbers of threads from 1 - 20 but in all cases
>> the
>> memory usage escalates and eventually oom kills jmeter. Naturally this
>> takes
>> a little bit longer with 1 thread as the memory usage is lower and the
>> ramp
>> up slightly slower.
>>
>> - I can't really share my JMX file as it has private information in it, I
>> have tried stripping it all back to a single HTTP request however and it
>> still causes the memory to slowly escalate on the slave servers.
>>
>> - I have changed the Xmx value to as high as possible without impacting on
>> system performance. At no point am I hitting swap on any of the systems
>> involved.
>>
>> The servers in question are Intel C2D 2.66 CPUs with 2GB RAM, I am using
>> the
>> following Xmx value on all servers:
>> HEAP="-Xms1024m -Xmx1024m"
>>
>> with per-sample settings of:
>> NEW="-XX:NewSize=128m -XX:MaxNewSize=256m"
>>
>>
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://jmeter.512774.n5.nabble.com/Distributed-testing-Memory-usage-tp4849000p4852905.html
>> Sent from the JMeter - User mailing list archive at Nabble.com.
>>
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>>
>>
>
>
> --
> Cordialement.
> Philippe Mouawad.
>
>
>
>


-- 
Cordialement.
Philippe Mouawad.

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