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Tomcat java processes eat processor.

We use a slightly modified version of what was posted to this list a long
time back.  It lets us look at a running website and quite easily see which
of our pages have got themselves 'stuck'. 

http://marc.theaimsgroup.com/?l=tomcat-user&m=109455426721082&w=2

(It's at the bottom of that page.)

Further along in the thread is this helpful filter: 
http://marc.theaimsgroup.com/?l=tomcat-user&m=109464294927932&w=2



> -----Original Message-----
> From: Rick Cockerham [mailto:rick (at) pocketknifesoftware.com] 
> Sent: Monday, June 19, 2006 10:21 AM
> To: Tomcat Users List
> Subject: Re: Tomcat java processes eat processor.
> 
> 
> 
> I wish it would give me a stack trace.  That would be wonderful.  The 
> part I left out was just a list of all the loaded libraries.
> 
> I can't risk a switch in software.  I realize this is a tough one.  I 
> have very little flexibility to help me debug.  That's why I'm asking 
> you guys!
> 
> Thanks,
> Rick
> 
> 
> 
> Leon Rosenberg wrote:
> > On 6/19/06, Rick Cockerham <rick (at) pocketknifesoftware.com> wrote:
> >>
> >> OK.  I finally got a file dumped out from this kill.  But, 
> it doesn't 
> >> look interesting to me.  Any idea what this means to me?
> >>
> >> Any other debug ideas?
> >
> > a) paste complete stack trace
> > b) try a regular vm (suns for example)
> >
> > regards
> > Leon
> >>
> >> Thanks,
> >> Rick
> >>
> >> Unexpected Signal : 3 occurred at PC=0x45C6D876 
> >> Function=(null)+0x45C6D876 
> >> Library=/opt/blackdown-jdk-1.4.2.01/jre/lib/i386/server/libjvm.so
> >>
> >> NOTE: We are unable to locate the function name symbol for 
> the error
> >>       just occurred. Please refer to release documentation 
> for possible
> >>       reason and solutions.
> >>
> >> Dynamic libraries:
> >> 08048000-08057000 r-xp 00000000 08:03 815431 
> >> /opt/blackdown-jdk-1.4.2.01/bin/java
> >> ...................
> >> ...................etc.
> >>
> >> Heap at VM Abort:
> >> Heap
> >>  PSYoungGen      total 102400K, used 84863K [0x4a170000, 
> 0x53770000,
> >> 0x53770000)
> >>   eden [0x4a170000,0x4d1702f8,0x4d370000)
> >>   from [0x4d370000,0x4f64fc38,0x50570000)
> >>   to   [0x50570000,0x50570000,0x53770000)
> >>  PSOldGen        total 256000K, used 215274K [0x53770000, 
> 0x63170000,
> >> 0x63170000)
> >>   object [0x53770000,0x609aa8c0,0x63170000)
> >>  PSPermGen       total 16384K, used 16250K [0x63170000, 0x64170000,
> >> 0x67170000)
> >>   object [0x63170000,0x6414e9f0,0x64170000)
> >>
> >> Local Time = Mon Jun 19 09:27:56 2006
> >>
> >>
> >> Peter Crowther wrote:
> >> >> From: Rick Cockerham [mailto:rick (at) pocketknifesoftware.com]
> >> >> Didn't work.  -3 doesn't kill it.
> >> >>
> >> >
> >> > No.  It produces a thread dump, and the process carries on going.
> >> Given
> >> > that you were complaining about not wanting to restart 
> Tomcat twice 
> >> > daily, I thought you'd appreciate a non-fatal solution :-).
> >> >
> >> >               - Peter
> >> >
> >> > 
> -------------------------------------------------------------------
> >> > --
> >> > To start a new topic, e-mail: users (at) tomcat.apache.org
> >> > To unsubscribe, e-mail: users-unsubscribe (at) tomcat.apache.org
> >> > For additional commands, e-mail: users-help (at) tomcat.apache.org
> >> >
> >> >
> >>
> >> --
> >>
> >> Rick Cockerham
> >> Pocket Knife Software, Inc. http://www.pocketknifesoftware.com
> >> 512-249-0467
> >>
> >>
> >> 
> ---------------------------------------------------------------------
> >> To start a new topic, e-mail: users (at) tomcat.apache.org
> >> To unsubscribe, e-mail: users-unsubscribe (at) tomcat.apache.org
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> >>
> >>
> >
> > 
> ---------------------------------------------------------------------
> > To start a new topic, e-mail: users (at) tomcat.apache.org
> > To unsubscribe, e-mail: users-unsubscribe (at) tomcat.apache.org
> > For additional commands, e-mail: users-help (at) tomcat.apache.org
> >
> 
> -- 
> 
> Rick Cockerham
> Pocket Knife Software, Inc.
> http://www.pocketknifesoftware.com 
> 512-249-0467
> 
> 
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users (at) tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe (at) tomcat.apache.org
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> 
> 


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