Try using Java Impl, as it does not have this thread local Map,it could work.
On Mon, Oct 15, 2012 at 4:01 PM, unjc email <unjc.em...@gmail.com> wrote: > Hi Deepak, > > I am not using any custom sampler nor any custom code in the test dump > I sent. The sampler I used is HTTP Request Sampler with HttpClient4 > Implementation (no request parameters); I used a static proxy server > though. I am not sure what specific code that has the leak you are > referring. Could you explain more? > > > > Thanks, > Jacky > > On Sat, Oct 13, 2012 at 3:47 PM, Deepak Goel <deic...@gmail.com> wrote: > > Hey > > > > It looks like you are creating a lot of new objects and not closing > > them. The transaction most used by you, should have the code which is > > leaking > > > > :) > > Deepak > > > > On 10/12/12, sebb <seb...@gmail.com> wrote: > >> On 11 October 2012 15:02, unjc email <unjc.em...@gmail.com> wrote: > >>> Hi Philippe, > >>> > >>> Thanks for your time on analyzing the heap dump. It is unfortunate to > >>> hear that there will be no support of my test case from Jmeter. > >> > >> The problem is knowing when it is safe to drop a cache entry. > >> > >>> I suppose I could try to write my own plugin targeted on the > >>> performance for my test case. Is there any chance you could give me > >>> advice on which part of the code I should look into, in order to keep > >>> the memory utilization at a low level for my test? > >> > >> If you want to experiment, you could edit the class to ignore the cache. > >> However this might have other adverse effects. > >> > >>> > >>> Thanks and much appreciated. > >>> > >>> Jacky > >>> > >>> On Thu, Oct 11, 2012 at 8:07 AM, Philippe Mouawad > >>> <philippe.moua...@gmail.com> wrote: > >>>> Hello, > >>>> I looked at your heap dump, it seems you are load testing lots of > >>>> differents WEBSITES (I mean HOSTs are all different). > >>>> This is clearly a very "weird" use case that we don't handle for now, > and > >>>> I > >>>> am not sure we will. > >>>> > >>>> Regards > >>>> Philippe > >>>> > >>>> > >>>> On Thu, Oct 11, 2012 at 12:10 AM, unjc email <unjc.em...@gmail.com> > >>>> wrote: > >>>> > >>>>> I have uploaded the heap dump file online and it's available at > >>>>> http://dl.free.fr/qZBPvLRB8. > >>>>> > >>>>> > >>>>> > >>>>> Thanks, > >>>>> Jacky > >>>>> > >>>>> On Wed, Oct 10, 2012 at 3:20 PM, Philippe Mouawad > >>>>> <philippe.moua...@gmail.com> wrote: > >>>>> > Hello, > >>>>> > Which map are you talking about in HTTPHC4Impl ? > >>>>> > > >>>>> > If it's this one: > >>>>> > > >>>>> > - Map<HttpClientKey, HttpClient> map = HTTPCLIENTS.get(); > >>>>> > > >>>>> > Then it only exists once per thread and per combination of : > >>>>> > > >>>>> > - url.getProtocol()+"://"+url.getAuthority(); > >>>>> > this.hasProxy = b; > >>>>> > this.proxyHost = proxyHost; > >>>>> > this.proxyPort = proxyPort; > >>>>> > this.proxyUser = proxyUser; > >>>>> > this.proxyPass = proxyPass; > >>>>> > > >>>>> > so unless you change these per url , it won't grow a lot. > >>>>> > > >>>>> > Check what Deepak is suggesting and if issue persists, then > generate > >>>>> > a > >>>>> Heap > >>>>> > Dump and put it somewhere where we can download it. > >>>>> > > >>>>> > Regards > >>>>> > Philippe > >>>>> > > >>>>> > On Wed, Oct 10, 2012 at 8:53 PM, Deepak Shetty <shet...@gmail.com> > >>>>> wrote: > >>>>> > > >>>>> >> Hi > >>>>> >> its more likely that you have some listener turned on (like view > >>>>> >> results > >>>>> >> tree) - Even if a URL is 2000 characters you can calculate how > many > >>>>> >> URLs > >>>>> >> before you use up say 100MB of memory. Do you really have that > many > >>>>> >> URLs > >>>>> >> even if they are dynamic? > >>>>> >> http://jmeter.apache.org/usermanual/best-practices.html#lean_mean > >>>>> >> > >>>>> >> regards > >>>>> >> deepak > >>>>> >> > >>>>> >> On Wed, Oct 10, 2012 at 9:21 AM, unjc email <unjc.em...@gmail.com > > > >>>>> wrote: > >>>>> >> > >>>>> >> > Hi all, > >>>>> >> > > >>>>> >> > I have memory and cpu issues when running heavy load testing > with > >>>>> >> > HTTP(S) sampler. The purpose of my test is to hammer the server > >>>>> >> > as > >>>>> >> > fast as Jmeter can, using a big list of hostnames and URIs, via > a > >>>>> >> > proxy server. The test plan I have setup is configured with > >>>>> >> > 100-thread thread group that contains a HTTPS Request sampler > >>>>> >> > (using > >>>>> >> > HTTPClient4) and Summary Results generator. > >>>>> >> > > >>>>> >> > The machine I am using has 12GB memory and 16-core cpu. I > monitor > >>>>> >> > the > >>>>> >> > top output throughout the test. I notice the RES size of the > >>>>> >> > jmeter > >>>>> >> > java process is growing really fast - it reaches 2GB heap size > >>>>> >> > limit > >>>>> >> > in less 5 minutes. The test could never go beyond 30-minute > mark > >>>>> >> > without OutOfMemory exception. I know there are plenty of free > >>>>> >> > memory > >>>>> >> > for me to expand the heap size; but my concern is whether there > is > >>>>> >> > a > >>>>> >> > memory leak in the code. I worry the process would suck up all > >>>>> >> > available memory anyway if I run a stress test for a day or > >>>>> >> > longer. > >>>>> >> > > >>>>> >> > I have skimmed through the code of HTTPHC4Impl and found that > there > >>>>> >> > is > >>>>> >> > cache "map" for HttpClient with regard to URL. I suspect this > >>>>> >> > cache > >>>>> >> > map could go pretty crazy in tests that deal with large number > of > >>>>> >> > (or > >>>>> >> > dynamic) URLs. Just curiosity, I tried running a test with > using > >>>>> >> > a > >>>>> >> > custom sampler as like HTTPHC4Impl but without the cache map; it > >>>>> >> > seems > >>>>> >> > help slowing down the pace of the heap size. However, the heap > >>>>> >> > size > >>>>> >> > (RES size in top output) never seem settle at one level over > time. > >>>>> >> > > >>>>> >> > Does anyone have any experience in running similar test as I do? > >>>>> >> > Does > >>>>> >> > it look like a potential "memory leak" to you? Any comment or > >>>>> >> > advice > >>>>> >> > will be appreciated. > >>>>> >> > > >>>>> >> > > >>>>> >> > > >>>>> >> > > >>>>> >> > Thanks, > >>>>> >> > Jacky > >>>>> >> > > >>>>> >> > > --------------------------------------------------------------------- > >>>>> >> > To unsubscribe, e-mail: user-unsubscr...@jmeter.apache.org > >>>>> >> > For additional commands, e-mail: user-h...@jmeter.apache.org > >>>>> >> > > >>>>> >> > > >>>>> >> > >>>>> > > >>>>> > > >>>>> > > >>>>> > -- > >>>>> > Cordialement. > >>>>> > Philippe Mouawad. > >>>>> > >>>>> --------------------------------------------------------------------- > >>>>> To unsubscribe, e-mail: user-unsubscr...@jmeter.apache.org > >>>>> For additional commands, e-mail: user-h...@jmeter.apache.org > >>>>> > >>>>> > >>>> > >>>> > >>>> -- > >>>> Cordialement. > >>>> Philippe Mouawad. > >>> > >>> --------------------------------------------------------------------- > >>> To unsubscribe, e-mail: user-unsubscr...@jmeter.apache.org > >>> For additional commands, e-mail: user-h...@jmeter.apache.org > >>> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: user-unsubscr...@jmeter.apache.org > >> For additional commands, e-mail: user-h...@jmeter.apache.org > >> > >> > > > > > > -- > > Namaskara~Nalama~Guten Tag~Bonjour > > > > > > -- > > Keigu > > > > Deepak > > +91-9765089593 > > deic...@gmail.com > > http://www.simtree.net > > > > Skype: thumsupdeicool > > Google talk: deicool > > Blog: http://loveandfearless.wordpress.com > > Facebook: http://www.facebook.com/deicool > > > > "Contribute to the world, environment and more : > http://www.gridrepublic.org > > " > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: user-unsubscr...@jmeter.apache.org > > For additional commands, e-mail: user-h...@jmeter.apache.org > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@jmeter.apache.org > For additional commands, e-mail: user-h...@jmeter.apache.org > > -- Cordialement. Philippe Mouawad.
