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From "Noam Camiel" <n...@mdrm.com>
Subject Re: tomcat jitters, then hangs - please help
Date Mon, 07 Apr 2003 11:09:19 GMT

On Thursday, October 09, 2003 10:39 PM "Remy Maucherat" <remm@jboss.org>
wrote:
> It is very surprising that the connector will manage to exit the accept
> loop without logging some kind of error (which would be in catalina.out,
> rather than in the main logs). Do you see some stack trace originating
> from the PoolTcpEndpoint or ThreadPool classes ?

There were no logs indicating this, and actually, after the server started
there are no other logs appearing in catalina.out

> No idea at this point. Most (all) such reports were for RH 9. All also
> mention a period of about a day before an incident.

Thanks, let me know if there's any news.
Regards,
Noam



----- Original Message -----
From: "Remy Maucherat" <remm@jboss.org>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Sent: Thursday, October 09, 2003 10:39 PM
Subject: Re: tomcat jitters, then hangs - please help


> Noam Camiel wrote:
> > On Thursday, October 09, 2003 5:11 PM "Ryan Lissack"
> > <rlissack@buildonline.com> wrote:
> >
> >>Hi Noam,
> >>
> >>We have experienced similar problems.  You will notice in the thread
dump
> >>that there is no thread from the connectors thread pool waiting on an
> >>accept
> >
> >
> > I see your what you mean, I compared the thread dump to a "good" dump
when
> > the server is operational and there indeed I found a thread from the
> > connectors thread pool waiting on accept:
> >
> > 3XMTHREADINFO      "http80-Processor24" (TID:0x100688E0,
> > sys_thread_t:0x87810C0, state:R, native ID:0x41CCCF40) prio=5
> > 4XESTACKTRACE          at java.net.PlainSocketImpl.socketAccept(Native
> > Method)
> >
> > This does not appear to exist in the "bad" dump.
>
> It is very surprising that the connector will manage to exit the accept
> loop without logging some kind of error (which would be in catalina.out,
> rather than in the main logs). Do you see some stack trace originating
> from the PoolTcpEndpoint or ThreadPool classes ?
>
> >>What OS are you on, RH9??
> >
> > Yes, Im on RH9.
> >
> > Any ideas why this could happen?  could it be some system resource
limit?
> > Is your application an intensive app? My application is not an intensive
one
> > and the hangs occur hours after i start the server (usually a day
later).
>
> No idea at this point. Most (all) such reports were for RH 9. All also
> mention a period of about a day before an incident.
>
> --
> xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Re'my Maucherat
> Senior Developer & Consultant
> JBoss Group (Europe) Sa`RL
> xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
>
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