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From "Allistair Crossley" <Allistair.Cross...@QAS.com>
Subject RE: Why is tomcat (java) so memory intensive?
Date Tue, 21 Dec 2004 16:06:13 GMT
i think (from memory) it had to do with registering requests with jk. anyway, like i say, upgrade
and you'll see that leak go away i am pretty sure.

> -----Original Message-----
> From: Allistair Crossley 
> Sent: 21 December 2004 16:00
> To: Tomcat Users List; christoph@kutzinski.de
> Subject: RE: Why is tomcat (java) so memory intensive?
> 
> 
> you are right, tomcat 5.0.19 did have a memory leak. some 
> dispute it, but it is there, i had it also and used a 
> profiler to show it. you should upgrade to 5.0.28.
> 
> Allistair.
> 
> > -----Original Message-----
> > From: Philippe Deslauriers [mailto:deslauriers@beetext.com]
> > Sent: 21 December 2004 15:47
> > To: Tomcat Users List; christoph@kutzinski.de
> > Subject: RE: Why is tomcat (java) so memory intensive?
> > 
> > 
> > 
> > Actually no, I tough it was 256Mb. Thanks.
> > It will go out of memory around 125Mb 140Mb in the task 
> > manager. It depends.
> > 
> > But your point just prove my problem to be even stanger: if 
> > 64 Mb shoulb be
> > the limit
> > where did the other 60Mb+ go? (the JVM itself never takes 
> > that much memory,
> > not from my experience).
> > 
> > What I did not mention in the orgininal post is that I have 
> > the same problem
> > with an app running on 5.0.18 sam jdk, using -Xms256m 
> > -Xmx1024m, it will
> > also run OOM, and again profiling the app did not show any 
> > leak, and a large
> > gap between the total heap and whatever the task manger reports.
> > 
> > My main issue here is where does the gap come from?
> > 
> > 
> > -----Original Message-----
> > From: Christoph Kutzinski [mailto:kutzi@gmx.de]
> > Sent: Tuesday, December 21, 2004 10:22 AM
> > To: Tomcat Users List
> > Subject: Re: Why is tomcat (java) so memory intensive?
> > 
> > 
> > Philippe Deslauriers wrote:
> > > I am using Tomcat 5.0.19 on Windows XP SP2, J2SDK 1.4.2_03.
> > >
> > > I have a serious memory problem with Tomcat, it just EAT 
> > memory without
> > > explanation, until OOM error occurs.
> > >
> > > The Java.exe process in the windows task manager reports 
> > using between
> > 95Mb
> > > and 105Mb after the startup of the webapp. I do not use Xms 
> > Xmx options in
> > > dev mode.
> > 
> > You do know that the VM will only allocate 64 mb for heap 
> if you don't
> > use the Xmx option, do you?
> > After the 64 mb are used up the vm will throw an oom error.
> > How much memory does the taskmanager report before the oom 
> > error happens?
> > 
> > 
> > Christoph
> > 
> > 
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> > 
> > 
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> 
> 
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