Unable to run for 500 threads

[Saranya C <sa...@maveric-systems.com>]

Hi,

I am trying to run a test with 500 threads, with 100 threads each distributed across 5 thread groups. But when i start the test, it hangs immediately after around a minute or two.

It shows the count of threads somewhere near 20 and entire jmeter gets stuck. Nothing could be done after that.

Is this because of the system specifications (2GB RAM; 40 GB HDD) or ????

Thanks in Advance,
Saranya C
============================================================================================================================================================== Disclaimer: This message is intended only for the individual or entity to which it is addressed. It may contain privileged, confidential information which is exempt from disclosure under applicable laws. If you are not the intended recipient, please note that you are strictly prohibited from disseminating or distributing this information (other than to the intended recipient) or copying this information. If you have received this communication in error, please notify us immediately by return email. ==============================================================================================================================================================

Re: Unable to run for 500 threads

[Flavio Cysne <fl...@gmail.com>]

A few questions to help us to help you.

Are you running this test on GUI or non-GUI mode?
How is HDD free space? Has it enough free space to generate logs?
Are all the JMeter slave/server instances at the same machine or is 1:1
ratio?
If you let it running, is there any exception logged?
If running on GUI mode, avoid using too many listeners. Disable every
listener and use only one Simple Data Writer listener. It uses less memory
than others.
Can you provide us part of the log that is relevant to this case?

Regards.


2013/6/13 Saranya C <sa...@maveric-systems.com>

> Hi,
>
> I am trying to run a test with 500 threads, with 100 threads each
> distributed across 5 thread groups. But when i start the test, it hangs
> immediately after around a minute or two.
>
> It shows the count of threads somewhere near 20 and entire jmeter gets
> stuck. Nothing could be done after that.
>
> Is this because of the system specifications (2GB RAM; 40 GB HDD) or ????
>
> Thanks in Advance,
> Saranya C
> ==============================================================================================================================================================
> Disclaimer: This message is intended only for the individual or entity to
> which it is addressed. It may contain privileged, confidential information
> which is exempt from disclosure under applicable laws. If you are not the
> intended recipient, please note that you are strictly prohibited from
> disseminating or distributing this information (other than to the intended
> recipient) or copying this information. If you have received this
> communication in error, please notify us immediately by return email.
> ==============================================================================================================================================================
>

Re: Unable to run for 500 threads

[Eugene Kazakov <yu...@gmail.com>]

Hello,
Try to creat a heapdump with -XX:-HeapDumpOnOutOfMemoryError
-XX:HeapDumpPath=./java_pid<pid>.hprof options and after that analyze it
with Memory analyzer tool


On 13 June 2013 18:48, Jomebrew <ai...@gmail.com> wrote:

> I run exclusively in GUI mode and run two thread groups with 250 threads
> each.  They share data and thread groups and run perpetually.  I am running
> on an older 2ghz dual quad core server.  I can run four instances of this
> scenario with a total of 2000 threads.   One thread group is in a tight
> loop waiting for events and one thread group is sending different requests
> based on a random chance.   Each instance of the four instances handles a
> couple hundred thousand transactions to a million a day.  I run instances
> for a few days to a week.
>
> I use the Simple Data Writer, View Results Tree (for errors only), Results
> Summary and Aggregate report in GUI mode.  I should try non-gui mode one
> day but I like looking at aggregate report data.
>
> This will use about 90% of CPU and about 4GB memory.  JMeter 2.9 uses a lot
> more CPU but less memory than 2.6.
>
>
>
> On Thu, Jun 13, 2013 at 5:12 AM, Saranya C <saranyac@maveric-systems.com
> >wrote:
>
> > Hi,
> >
> > I am trying to run a test with 500 threads, with 100 threads each
> > distributed across 5 thread groups. But when i start the test, it hangs
> > immediately after around a minute or two.
> >
> > It shows the count of threads somewhere near 20 and entire jmeter gets
> > stuck. Nothing could be done after that.
> >
> > Is this because of the system specifications (2GB RAM; 40 GB HDD) or ????
> >
> > Thanks in Advance,
> > Saranya C
> >
> ==============================================================================================================================================================
> > Disclaimer: This message is intended only for the individual or entity to
> > which it is addressed. It may contain privileged, confidential
> information
> > which is exempt from disclosure under applicable laws. If you are not the
> > intended recipient, please note that you are strictly prohibited from
> > disseminating or distributing this information (other than to the
> intended
> > recipient) or copying this information. If you have received this
> > communication in error, please notify us immediately by return email.
> >
> ==============================================================================================================================================================
> >
>



-- 
Thank you,
Eugene Kazakov

Re: Unable to run for 500 threads

[Jomebrew <ai...@gmail.com>]

I run exclusively in GUI mode and run two thread groups with 250 threads
each.  They share data and thread groups and run perpetually.  I am running
on an older 2ghz dual quad core server.  I can run four instances of this
scenario with a total of 2000 threads.   One thread group is in a tight
loop waiting for events and one thread group is sending different requests
based on a random chance.   Each instance of the four instances handles a
couple hundred thousand transactions to a million a day.  I run instances
for a few days to a week.

I use the Simple Data Writer, View Results Tree (for errors only), Results
Summary and Aggregate report in GUI mode.  I should try non-gui mode one
day but I like looking at aggregate report data.

This will use about 90% of CPU and about 4GB memory.  JMeter 2.9 uses a lot
more CPU but less memory than 2.6.



On Thu, Jun 13, 2013 at 5:12 AM, Saranya C <sa...@maveric-systems.com>wrote:

> Hi,
>
> I am trying to run a test with 500 threads, with 100 threads each
> distributed across 5 thread groups. But when i start the test, it hangs
> immediately after around a minute or two.
>
> It shows the count of threads somewhere near 20 and entire jmeter gets
> stuck. Nothing could be done after that.
>
> Is this because of the system specifications (2GB RAM; 40 GB HDD) or ????
>
> Thanks in Advance,
> Saranya C
> ==============================================================================================================================================================
> Disclaimer: This message is intended only for the individual or entity to
> which it is addressed. It may contain privileged, confidential information
> which is exempt from disclosure under applicable laws. If you are not the
> intended recipient, please note that you are strictly prohibited from
> disseminating or distributing this information (other than to the intended
> recipient) or copying this information. If you have received this
> communication in error, please notify us immediately by return email.
> ==============================================================================================================================================================
>