What happened when there was no more JVM memory? ... ..... I dont know. Was the garbage collector able to free the used memeory?...... Jprofiler: no, Yourkit and JConsole: yes
What happens when you run the garbage collector manually? ..... Jprofiler: nothing, Yourkit and JConsole: memory was correctly released. 2016-02-03 21:09 GMT+01:00 Amon Amon <argenst...@hotmail.com>: > > > What happened when there was no more JVM memory? Was the garbage > collector able to free the used memeory? > > What happens when you run the garbage collector manually? > > > Cheers, > Amon > > ________________________________________ > From: David Skalka <david.ska...@gmail.com> > Sent: Wednesday, February 3, 2016 8:06 PM > To: HttpClient User Discussion > Subject: Re: HttpClientBuilder Memory Leak > > Sorry for delay. > > java varsion is 1.8.0. 66-b17. The graph was made by Jprofiler. > > I tested same code with Yourkit a Jconsole wihout any leak. I dont > understand it. > > Can someone profile this code using JProfiler? It looks at the serious > errors of JProfiler > > > 2016-02-02 23:15 GMT+01:00 Gary Gregory <garydgreg...@gmail.com>: > > > Curious: What profiler and java version are you using? > > > > Gary > > > > On Tue, Feb 2, 2016 at 1:39 PM, David Skalka <david.ska...@gmail.com> > > wrote: > > > > > I updated httpclient to 4.5.1 and after 30minutes I see same result. > > > memory is growing up > > > > > > 2016-02-02 21:51 GMT+01:00 Dan Quaroni <q...@invoke.com>: > > > > > > > I don't really know what program is producing this image, but what I > > see > > > in > > > > this picture is that there are a lot of Strings in memory, which seem > > to > > > be > > > > living in HashMap(s). I don't know how this program he used analyzes > > > > memory usage... But either way, I can't reproduce it. > > > > > > > > On Tue, Feb 2, 2016 at 3:36 PM, Oleg Kalnichevski <ol...@apache.org> > > > > wrote: > > > > > > > > > On Tue, 2016-02-02 at 15:29 -0500, Dan Quaroni wrote: > > > > > > What version of HttpClient are you using? I cut the sleep down > to > > > 1ms > > > > > and > > > > > > have had it running for 25 minutes and am not observing any such > > > memory > > > > > > leak. > > > > > > > > > > > > > > > > If one takes even a cursory look at the memory profile one can > > clearly > > > > > see that out several dozen classes on the heap only one class > belongs > > > to > > > > > HttpCient - CPool and there are only ~900 instances of that class > > > > > compared to millions of instances of other classes. > > > > > > > > > > Oleg > > > > > > > > > > > On Tue, Feb 2, 2016 at 3:21 PM, Oleg Kalnichevski < > > ol...@apache.org> > > > > > wrote: > > > > > > > > > > > > > On Tue, 2016-02-02 at 21:16 +0100, David Skalka wrote: > > > > > > > > what is it "own data" ? > > > > > > > > > > > > > > > > > > > > > > https://drive.google.com/open?id=0B8cERbS5JTTtZkVpWmhVWS11UkU > > > > > > > > > > > > > > Oleg > > > > > > > > > > > > > > > > > > > > > > 2016-02-02 21:11 GMT+01:00 Oleg Kalnichevski < > ol...@apache.org > > >: > > > > > > > > > > > > > > > > > On Tue, 2016-02-02 at 20:58 +0100, David Skalka wrote: > > > > > > > > > > it is simple test application with one while. here is > whole > > > > > source > > > > > > > code: > > > > > > > > > > > > > > > > > > > > > > > > > > > > Have you looked at your own data? > > > > > > > > > > > > > > > > > > Oleg > > > > > > > > > > > > > > > > > > > > > > > > > > > > > import java.io.IOException; > > > > > > > > > > > > > > > > > > > > import org.apache.http.impl.client.CloseableHttpClient; > > > > > > > > > > import org.apache.http.impl.client.HttpClientBuilder; > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > public class Program { > > > > > > > > > > > > > > > > > > > > public static void main(String[] args) throws > > > IOException, > > > > > > > > > > InterruptedException { > > > > > > > > > > > > > > > > > > > > while(true){ > > > > > > > > > > CloseableHttpClient httpclient = > > > > > > > > > > HttpClientBuilder.create().build(); > > > > > > > > > > httpclient.close(); > > > > > > > > > > Thread.sleep(5); > > > > > > > > > > } > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > } > > > > > > > > > > > > > > > > > > > > } > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 2016-02-02 20:51 GMT+01:00 Oleg Kalnichevski < > > > ol...@apache.org > > > > >: > > > > > > > > > > > > > > > > > > > > > On Tue, 2016-02-02 at 20:42 +0100, David Skalka wrote: > > > > > > > > > > > > sorry i dont understand you. What do you mean by > "what > > > does > > > > > this > > > > > > > all > > > > > > > > > tell > > > > > > > > > > > > you" ? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Have you taken even a cursory look at your own data? > > > > > > > > > > > > > > > > > > > > > > What makes you think there is a leak in HttpClient? > > > > > > > > > > > > > > > > > > > > > > Oleg > > > > > > > > > > > > > > > > > > > > > > > 2016-02-02 20:21 GMT+01:00 Oleg Kalnichevski < > > > > > ol...@apache.org>: > > > > > > > > > > > > > > > > > > > > > > > > > On Tue, 2016-02-02 at 19:30 +0100, David Skalka > > wrote: > > > > > > > > > > > > > > Here is long running snapshot with types > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://drive.google.com/open?id=0B8cERbS5JTTtZkVpWmhVWS11UkU > > > > > > > > > > > > > > > > > > > > > > > > > > And what does this all tell you? > > > > > > > > > > > > > > > > > > > > > > > > > > Oleg > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 2016-02-02 17:22 GMT+01:00 Gary Gregory < > > > > > > > garydgreg...@gmail.com > > > > > > > > > >: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Can you look and see what kind of objects are > > > > retained? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Gary > > > > > > > > > > > > > > > On Feb 2, 2016 2:33 AM, "David Skalka" < > > > > > > > david.ska...@gmail.com > > > > > > > > > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Why this code causes a memory leak? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > code: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > *while(true){* > > > > > > > > > > > > > > > > * CloseableHttpClient httpclient = > > > > > > > > > > > > > HttpClientBuilder.create().build();* > > > > > > > > > > > > > > > > * httpclient.close();* > > > > > > > > > > > > > > > > * Thread.sleep(5);* > > > > > > > > > > > > > > > > * }* > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Here is a graph of memory allocation: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://drive.google.com/file/d/0B8cERbS5JTTtMnUyVXJNZDRFbHM/view > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > > > > > > > > > To unsubscribe, e-mail: > > > > > > > httpclient-users-unsubscr...@hc.apache.org > > > > > > > > > > > > > For additional commands, e-mail: > > > > > > > > > httpclient-users-h...@hc.apache.org > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > > > > > > > To unsubscribe, e-mail: > > > > > httpclient-users-unsubscr...@hc.apache.org > > > > > > > > > > > For additional commands, e-mail: > > > > > > > httpclient-users-h...@hc.apache.org > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > > > > > To unsubscribe, e-mail: > > > > httpclient-users-unsubscr...@hc.apache.org > > > > > > > > > For additional commands, e-mail: > > > > > httpclient-users-h...@hc.apache.org > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > > > To unsubscribe, e-mail: > > httpclient-users-unsubscr...@hc.apache.org > > > > > > > For additional commands, e-mail: > > > httpclient-users-h...@hc.apache.org > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org > > > > > For additional commands, e-mail: > httpclient-users-h...@hc.apache.org > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > *Daniel Quaroni* > > > > Principal Software Architect > > > > P: 781.810.2743 > > > > q...@invoke.com > > > > www.invoke.com > > > > See a Demo here <http://www.invoke.com/platform/demo> > > > > > > > > > > > > > > > -- > > E-Mail: garydgreg...@gmail.com | ggreg...@apache.org > > Java Persistence with Hibernate, Second Edition > > <http://www.manning.com/bauer3/> > > JUnit in Action, Second Edition <http://www.manning.com/tahchiev/> > > Spring Batch in Action <http://www.manning.com/templier/> > > Blog: http://garygregory.wordpress.com > > Home: http://garygregory.com/ > > Tweet! http://twitter.com/GaryGregory > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: httpclient-users-unsubscr...@hc.apache.org > For additional commands, e-mail: httpclient-users-h...@hc.apache.org > >
