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Posted to user@jmeter.apache.org by bobMeliev <b....@gmail.com> on 2013/09/20 08:02:43 UTC
Re: jmeter memory leak?
When you get this error a file with extension .hprof gets created. This is
the heap dump created when the JVM crashed. This file can be analysed using
Heap Analysis tools to identify the root cause. Ex: You can try analysing
using JHAT (
http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html )
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Re: jmeter memory leak?
Posted by sebb <se...@gmail.com>.
On 21 September 2013 09:05, Sergio Boso <se...@bosoconsulting.it> wrote:
> just to add some info, you have to take in account that Jmeter keeps all the
> sample's result in memory, even i there is no further process for it.
Half true.
Samplers store the full response unconditionally in memory (except if
MD5 hash is selected), regardless of whether there are any other test
elements that need to use the data.
However this is temporary - JMeter only _keeps_ the result in memory
if it is still needed.
For example, the Tree View and Table Listeners display individual
samples, so they keep all sample results.
And in non-GUI mode, since there are no displays, even the Tree View
Listener does not store thre results.
> So, if you are downloading some large objects (like imaging, SW updates and
> so on), then you can easily go out of memory.
>
> If this is the case, look for the maximum object size run just few threads
> and increase memory accordingly (HEAP option, in Jmeter start script)
>
> HTH
>
> Sergio
>
>
>
> Il 20/09/2013 08.02, bobMeliev ha scritto:
>
>> When you get this error a file with extension .hprof gets created. This is
>> the heap dump created when the JVM crashed. This file can be analysed
>> using
>> Heap Analysis tools to identify the root cause. Ex: You can try analysing
>> using JHAT (
>> http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html )
>>
>>
>>
>> --
>> View this message in context:
>> http://jmeter.512774.n5.nabble.com/jmeter-memory-leak-tp4938431p5718206.html
>> Sent from the JMeter - User mailing list archive at Nabble.com.
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
>> For additional commands, e-mail: user-help@jmeter.apache.org
>>
>
>
> --
>
> Ing. Sergio Boso
>
>
>
>
>
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Re: jmeter memory leak?
Posted by Sergio Boso <se...@bosoconsulting.it>.
just to add some info, you have to take in account that Jmeter keeps all the sample's result in memory, even i there is no further
process for it.
So, if you are downloading some large objects (like imaging, SW updates and so on), then you can easily go out of memory.
If this is the case, look for the maximum object size run just few threads and increase memory accordingly (HEAP option, in Jmeter
start script)
HTH
Sergio
Il 20/09/2013 08.02, bobMeliev ha scritto:
> When you get this error a file with extension .hprof gets created. This is
> the heap dump created when the JVM crashed. This file can be analysed using
> Heap Analysis tools to identify the root cause. Ex: You can try analysing
> using JHAT (
> http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html )
>
>
>
> --
> View this message in context: http://jmeter.512774.n5.nabble.com/jmeter-memory-leak-tp4938431p5718206.html
> Sent from the JMeter - User mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
> For additional commands, e-mail: user-help@jmeter.apache.org
>
--
Ing. Sergio Boso
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Re: jmeter memory leak?
Posted by umesh prajapati <pr...@gmail.com>.
but the problem is i dont know how to debug or I dont know what do i need
to look into once jhat make the data available on a local webserver
On Fri, Sep 20, 2013 at 11:59 AM, umesh prajapati <pr...@gmail.com>wrote:
> Got it thanks
>
>
> On Fri, Sep 20, 2013 at 11:50 AM, Kirk Pepperdine <
> kirk.pepperdine@gmail.com> wrote:
>
>> it's included in the JDK
>>
>> -- Kirk
>>
>> On 2013-09-20, at 11:27 AM, umesh prajapati <pr...@gmail.com> wrote:
>>
>> > Hi bob
>> >
>> > I couldnt find the download link for jhat tool. Would really appreciate
>> if
>> > you could send me the link for it
>> >
>> >
>> > On Fri, Sep 20, 2013 at 6:37 AM, umesh prajapati <praumesh86@gmail.com
>> >wrote:
>> >
>> >> Thanks again for sharing useful tips. .;)
>> >> On Sep 19, 2013 11:03 PM, "bobMeliev" <b....@gmail.com> wrote:
>> >>
>> >>> When you get this error a file with extension .hprof gets created.
>> This is
>> >>> the heap dump created when the JVM crashed. This file can be analysed
>> >>> using
>> >>> Heap Analysis tools to identify the root cause. Ex: You can try
>> analysing
>> >>> using JHAT (
>> >>> http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html)
>> >>>
>> >>>
>> >>>
>> >>> --
>> >>> View this message in context:
>> >>>
>> http://jmeter.512774.n5.nabble.com/jmeter-memory-leak-tp4938431p5718206.html
>> >>> Sent from the JMeter - User mailing list archive at Nabble.com.
>> >>>
>> >>> ---------------------------------------------------------------------
>> >>> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
>> >>> For additional commands, e-mail: user-help@jmeter.apache.org
>> >>>
>> >>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
>> For additional commands, e-mail: user-help@jmeter.apache.org
>>
>>
>
Re: jmeter memory leak?
Posted by umesh prajapati <pr...@gmail.com>.
Got it thanks
On Fri, Sep 20, 2013 at 11:50 AM, Kirk Pepperdine <kirk.pepperdine@gmail.com
> wrote:
> it's included in the JDK
>
> -- Kirk
>
> On 2013-09-20, at 11:27 AM, umesh prajapati <pr...@gmail.com> wrote:
>
> > Hi bob
> >
> > I couldnt find the download link for jhat tool. Would really appreciate
> if
> > you could send me the link for it
> >
> >
> > On Fri, Sep 20, 2013 at 6:37 AM, umesh prajapati <praumesh86@gmail.com
> >wrote:
> >
> >> Thanks again for sharing useful tips. .;)
> >> On Sep 19, 2013 11:03 PM, "bobMeliev" <b....@gmail.com> wrote:
> >>
> >>> When you get this error a file with extension .hprof gets created.
> This is
> >>> the heap dump created when the JVM crashed. This file can be analysed
> >>> using
> >>> Heap Analysis tools to identify the root cause. Ex: You can try
> analysing
> >>> using JHAT (
> >>> http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html )
> >>>
> >>>
> >>>
> >>> --
> >>> View this message in context:
> >>>
> http://jmeter.512774.n5.nabble.com/jmeter-memory-leak-tp4938431p5718206.html
> >>> Sent from the JMeter - User mailing list archive at Nabble.com.
> >>>
> >>> ---------------------------------------------------------------------
> >>> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
> >>> For additional commands, e-mail: user-help@jmeter.apache.org
> >>>
> >>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
> For additional commands, e-mail: user-help@jmeter.apache.org
>
>
Re: jmeter memory leak?
Posted by Kirk Pepperdine <ki...@gmail.com>.
it's included in the JDK
-- Kirk
On 2013-09-20, at 11:27 AM, umesh prajapati <pr...@gmail.com> wrote:
> Hi bob
>
> I couldnt find the download link for jhat tool. Would really appreciate if
> you could send me the link for it
>
>
> On Fri, Sep 20, 2013 at 6:37 AM, umesh prajapati <pr...@gmail.com>wrote:
>
>> Thanks again for sharing useful tips. .;)
>> On Sep 19, 2013 11:03 PM, "bobMeliev" <b....@gmail.com> wrote:
>>
>>> When you get this error a file with extension .hprof gets created. This is
>>> the heap dump created when the JVM crashed. This file can be analysed
>>> using
>>> Heap Analysis tools to identify the root cause. Ex: You can try analysing
>>> using JHAT (
>>> http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html )
>>>
>>>
>>>
>>> --
>>> View this message in context:
>>> http://jmeter.512774.n5.nabble.com/jmeter-memory-leak-tp4938431p5718206.html
>>> Sent from the JMeter - User mailing list archive at Nabble.com.
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
>>> For additional commands, e-mail: user-help@jmeter.apache.org
>>>
>>>
---------------------------------------------------------------------
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Re: jmeter memory leak?
Posted by Kirk Pepperdine <ki...@gmail.com>.
I should add, I doubt that JMeter is leaking... I'll be using it this afternoon and I'll take a look to confirm.
Regards,
Kirk
On 2013-09-20, at 11:27 AM, umesh prajapati <pr...@gmail.com> wrote:
> Hi bob
>
> I couldnt find the download link for jhat tool. Would really appreciate if
> you could send me the link for it
>
>
> On Fri, Sep 20, 2013 at 6:37 AM, umesh prajapati <pr...@gmail.com>wrote:
>
>> Thanks again for sharing useful tips. .;)
>> On Sep 19, 2013 11:03 PM, "bobMeliev" <b....@gmail.com> wrote:
>>
>>> When you get this error a file with extension .hprof gets created. This is
>>> the heap dump created when the JVM crashed. This file can be analysed
>>> using
>>> Heap Analysis tools to identify the root cause. Ex: You can try analysing
>>> using JHAT (
>>> http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html )
>>>
>>>
>>>
>>> --
>>> View this message in context:
>>> http://jmeter.512774.n5.nabble.com/jmeter-memory-leak-tp4938431p5718206.html
>>> Sent from the JMeter - User mailing list archive at Nabble.com.
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
>>> For additional commands, e-mail: user-help@jmeter.apache.org
>>>
>>>
---------------------------------------------------------------------
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For additional commands, e-mail: user-help@jmeter.apache.org
Re: jmeter memory leak?
Posted by Kirk Pepperdine <ki...@gmail.com>.
If you are looking for a memory leak in JMeter you first have to recognize that it naturally uses memory as if it is leaking memory. Second, if you're going to find the memory leak might I suggest you use the memory profiler in VisualVM. If you ask it look for object allocations and GC. That will give you a generational count. The JMeter object with the highest gen count is the one that is leaking
Regards,
Kirk
On 2013-09-20, at 11:27 AM, umesh prajapati <pr...@gmail.com> wrote:
> Hi bob
>
> I couldnt find the download link for jhat tool. Would really appreciate if
> you could send me the link for it
>
>
> On Fri, Sep 20, 2013 at 6:37 AM, umesh prajapati <pr...@gmail.com>wrote:
>
>> Thanks again for sharing useful tips. .;)
>> On Sep 19, 2013 11:03 PM, "bobMeliev" <b....@gmail.com> wrote:
>>
>>> When you get this error a file with extension .hprof gets created. This is
>>> the heap dump created when the JVM crashed. This file can be analysed
>>> using
>>> Heap Analysis tools to identify the root cause. Ex: You can try analysing
>>> using JHAT (
>>> http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html )
>>>
>>>
>>>
>>> --
>>> View this message in context:
>>> http://jmeter.512774.n5.nabble.com/jmeter-memory-leak-tp4938431p5718206.html
>>> Sent from the JMeter - User mailing list archive at Nabble.com.
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
>>> For additional commands, e-mail: user-help@jmeter.apache.org
>>>
>>>
---------------------------------------------------------------------
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For additional commands, e-mail: user-help@jmeter.apache.org
Re: jmeter memory leak?
Posted by umesh prajapati <pr...@gmail.com>.
Hi bob
I couldnt find the download link for jhat tool. Would really appreciate if
you could send me the link for it
On Fri, Sep 20, 2013 at 6:37 AM, umesh prajapati <pr...@gmail.com>wrote:
> Thanks again for sharing useful tips. .;)
> On Sep 19, 2013 11:03 PM, "bobMeliev" <b....@gmail.com> wrote:
>
>> When you get this error a file with extension .hprof gets created. This is
>> the heap dump created when the JVM crashed. This file can be analysed
>> using
>> Heap Analysis tools to identify the root cause. Ex: You can try analysing
>> using JHAT (
>> http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html )
>>
>>
>>
>> --
>> View this message in context:
>> http://jmeter.512774.n5.nabble.com/jmeter-memory-leak-tp4938431p5718206.html
>> Sent from the JMeter - User mailing list archive at Nabble.com.
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
>> For additional commands, e-mail: user-help@jmeter.apache.org
>>
>>
Re: jmeter memory leak?
Posted by umesh prajapati <pr...@gmail.com>.
Thanks again for sharing useful tips. .;)
On Sep 19, 2013 11:03 PM, "bobMeliev" <b....@gmail.com> wrote:
> When you get this error a file with extension .hprof gets created. This is
> the heap dump created when the JVM crashed. This file can be analysed using
> Heap Analysis tools to identify the root cause. Ex: You can try analysing
> using JHAT (
> http://docs.oracle.com/javase/6/docs/technotes/tools/share/jhat.html )
>
>
>
> --
> View this message in context:
> http://jmeter.512774.n5.nabble.com/jmeter-memory-leak-tp4938431p5718206.html
> Sent from the JMeter - User mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
> For additional commands, e-mail: user-help@jmeter.apache.org
>
>