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Posted to users@tomcat.apache.org by Mohit Anchlia <mo...@gmail.com> on 2008/10/04 08:57:52 UTC
Heap dump of servlet
I have a servlet running under tomcat. Question is how do I take haeap
dump of only servlet instance. On stand alone applications it's easy
to do with kill -QUIT PID but in this case there is no PID of a
servlet. If I do on tomcat's PID then I'll get lost.
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RE: Heap dump of servlet
Posted by Martin Gainty <mg...@hotmail.com>.
i would use either jmap, jhat or jconsole..instructions located at
http://www.rtidemo.org/drupal/node/122
Martin
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> Date: Mon, 6 Oct 2008 08:23:01 -0700
> From: mohitanchlia@gmail.com
> To: users@tomcat.apache.org
> Subject: Re: Heap dump of servlet
>
> Is there any way to get just the heapdump of servlet threads?
>
> On Sat, Oct 4, 2008 at 12:16 AM, Leon Rosenberg
> <ro...@googlemail.com> wrote:
> > kill -QUIT produces the thread dump, not the heap dump. That's being
> > said it works exactly the same way with tomcat as with any other
> > application, the whole thread dump is dumped out to the standard out
> > which in this case is catalina.out.
> >
> > Leon
> >
> > On Sat, Oct 4, 2008 at 8:57 AM, Mohit Anchlia <mo...@gmail.com> wrote:
> >> I have a servlet running under tomcat. Question is how do I take haeap
> >> dump of only servlet instance. On stand alone applications it's easy
> >> to do with kill -QUIT PID but in this case there is no PID of a
> >> servlet. If I do on tomcat's PID then I'll get lost.
> >>
> >> ---------------------------------------------------------------------
> >> To start a new topic, e-mail: users@tomcat.apache.org
> >> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> >> For additional commands, e-mail: users-help@tomcat.apache.org
> >>
> >>
> >
> > ---------------------------------------------------------------------
> > To start a new topic, e-mail: users@tomcat.apache.org
> > To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> > For additional commands, e-mail: users-help@tomcat.apache.org
> >
> >
>
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RE: Heap dump of servlet
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: Mohit Anchlia [mailto:mohitanchlia@gmail.com]
> Subject: Re: Heap dump of servlet
>
> Is there any way to get just the heapdump of servlet threads?
Since the heap is shared by all threads in the JVM, there's no such thing as a "heapdump of servlet threads". Use jmap or similar tools to see what's in the heap of a running JVM.
- Chuck
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Re: Heap dump of servlet
Posted by Mohit Anchlia <mo...@gmail.com>.
Is there any way to get just the heapdump of servlet threads?
On Sat, Oct 4, 2008 at 12:16 AM, Leon Rosenberg
<ro...@googlemail.com> wrote:
> kill -QUIT produces the thread dump, not the heap dump. That's being
> said it works exactly the same way with tomcat as with any other
> application, the whole thread dump is dumped out to the standard out
> which in this case is catalina.out.
>
> Leon
>
> On Sat, Oct 4, 2008 at 8:57 AM, Mohit Anchlia <mo...@gmail.com> wrote:
>> I have a servlet running under tomcat. Question is how do I take haeap
>> dump of only servlet instance. On stand alone applications it's easy
>> to do with kill -QUIT PID but in this case there is no PID of a
>> servlet. If I do on tomcat's PID then I'll get lost.
>>
>> ---------------------------------------------------------------------
>> To start a new topic, e-mail: users@tomcat.apache.org
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>
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> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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>
>
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Re: Heap dump of servlet
Posted by Leon Rosenberg <ro...@googlemail.com>.
kill -QUIT produces the thread dump, not the heap dump. That's being
said it works exactly the same way with tomcat as with any other
application, the whole thread dump is dumped out to the standard out
which in this case is catalina.out.
Leon
On Sat, Oct 4, 2008 at 8:57 AM, Mohit Anchlia <mo...@gmail.com> wrote:
> I have a servlet running under tomcat. Question is how do I take haeap
> dump of only servlet instance. On stand alone applications it's easy
> to do with kill -QUIT PID but in this case there is no PID of a
> servlet. If I do on tomcat's PID then I'll get lost.
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
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