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Date: Wed, 19 Jul 2006 15:37:46 +0530
From: "Arunan Kannan" <arunank@gmail.com>
To: "Cosio, Raul" <jose_raul_cosio@merck.com>
Subject: Re: Tomcat shutdowns unexpectedly - Please help
Cc: users@tomcat.apache.org
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Hi Cosio

thank you very much.

There is no such suspecious servlet details in web.xml

Hi All,

My problem seems to be very peculiar and haven't heard this before.
The tomcat gets shutdown unexpectedly after 3 hours only on this particular
system.
the same tomcat with same confgiurations when run on a other system, it runs
properly and there is no problem.

on this particular system the problem occurs always.
 # uname -a
SunOS CBT 5.8 Generic_117350-36 sun4u sparc SUNW,Sun-Blade-1000
dunno what to do. i have tried all.. nothing is fruitfull.

Also it is very amazing that when i run a simple script at background which
will echo hello once in 10 minute and is infite...the problem doesn't
occurs...dunno why...

while [ true ]
do
        echo "hello"
        sleep 600
done

why?
whats the problem?
How to resolve?

I am very much confused.
Please help.

Thanks again,
Thanks and regards,
Arunan


On 7/18/06, Cosio, Raul <jose_raul_cosio@merck.com> wrote:
>
> David,
>
> - Do you have in your web.xml some kind of <servlet> tag sometimes used
> to start a background thread that might be causing the problem?
> Unfortunately I work with WinXP and not everithing is written to
> catalina.out, what I do is run tomcat in a DOS prompt, if it hangs then
> I can read all the output generated, sometimes caused by the JVM...
>
> - Are you trying to open de /admin tool but it's not installed already
> on your server?
>
> -----Original Message-----
> From: Arunan Kannan [mailto:arunank@gmail.com]
> Sent: Martes, 11 de Julio de 2006 09:54 a.m.
> To: Tomcat Users List; Martin Gainty
> Subject: Re: Tomcat shutdowns unexpectedly - Please help
>
>
> Hi David, Martin, and Alireza,
>
> Thank you very much for your comments and suggestions. Thanks a lot.
>
> Hi David,
> There is no logs corresponding to this shutdown anywhere on the system.
> I
> couldn't find any thing relevent to this crash on syslog or at any other
> place. Thanks for your help.
>
> Hi Martin,
> Here is the log from catalina.out file. Please have a look at it.
> Jul 10, 2006 11:57:18 PM org.apache.coyote.http11.Http11Protocol init
> INFO: Initializing Coyote HTTP/1.1 on http-8080
> Starting service Tomcat-Standalone
> Apache Tomcat/4.1.31
> Jul 10, 2006 11:57:21 PM org.apache.coyote.http11.Http11Protocol start
> INFO: Starting Coyote HTTP/1.1 on http-8080
> Jul 10, 2006 11:57:21 PM org.apache.jk.common.ChannelSocket init
> INFO: JK2: ajp13 listening on /0.0.0.0:8009
> Jul 10, 2006 11:57:21 PM org.apache.jk.server.JkMain start
> INFO: Jk running ID=0 time=2/53  config=/temp/jakarta-tomcat-4.1.31
> /conf/jk2.pro
> perties
> Stopping service Tomcat-Standalone
>
> and here are the logs from localhost_admin_log.2006-07-10.txt
>
> 2006-07-11 05:01:40 StandardContext[/admin]: Servlet /admin threw load()
> excepti
> on
> javax.servlet.ServletException: Wrapper cannot find servlet class
> org.apache.web
> app.admin.ApplicationServlet or a class it depends on
>        at org.apache.catalina.core.StandardWrapper.loadServlet
> (StandardWrapper.
> java:844)
> 6)      at org.apache.catalina.core.StandardWrapper.load(
> StandardWrapper.java:77
> t.ja
> 3363)rg.apache.catalina.core.StandardContext.loadOnStartup(StandardConte
> x
> 586)    at org.apache.catalina.core.StandardContext.start(
> StandardContext.java:3
> .java:774) org.apache.catalina.core.ContainerBase.addChildInternal
> (ContainerBase
> 0)      at org.apache.catalina.core.ContainerBase.addChild(
> ContainerBase.java:76
> ----
> --at java.lang.reflect.Method.invoke(Method.java:324)
>        at
> org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:156)
>
> 2006-07-11 05:01:40 StandardWrapper[/admin:invoker]: Loading container
> servlet i
> nvoker
>
> I couldn't understand much. Can you please let me know some more info
> about
> this.
>
> As you said, I tried to find some timeout parameters in the conf files.
>
> <!-- Define a non-SSL Coyote HTTP/1.1 Connector on port 9080 -->
> <Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
>           port="9080" minProcessors="5" maxProcessors="75"
>           enableLookups="true" redirectPort="9443"
>           acceptCount="100" debug="0" connectionTimeout="20000"
>           useURIValidationHack="false" disableUploadTimeout="true" />
> <!-- Note : To disable connection timeouts, set connectionTimeout value
> to -1 -->
>
>
> In the server.xml the ConnectionTimeout is set to 20000. I will change
> that
> to 0 and let you know the results. Thanks for your help.
>
> Hi Alireza,
>
> The tomcat I am using is not configured with apache.
>
> Initially I run some sample application and left it ideal for some 3 to
> 4
> hr. There is no action done in this time. Then the tomcat gets shutdown
> unexpectedly.
>
> I will try your suggestion and let you know the result. Thanks for your
> help.
>
> Thanks again for all,
>
> Thanks and Regards,
>
> Arunan
>
>
> On 7/11/06, Martin Gainty <mgainty@hotmail.com> wrote:
> >
> > I would also look at workers.properties files and make sure
> > socket_KeepAlive is set on
> > Also socket_timeout is set to 0 so it never times out
> >
> > M-
> > *********************************************************************
> > This email message and any files transmitted with it contain
> confidential
> > information intended only for the person(s) to whom this email message
> is
> > addressed.  If you have received this email message in error, please
> > notify
> > the sender immediately by telephone or email and destroy the original
> > message without making a copy.  Thank you.
> >
> >
> >
> > ----- Original Message -----
> > From: "Mr Alireza Fattahi" <afattahi@yahoo.com>
> > To: "Tomcat Users List" <users@tomcat.apache.org>; "Martin Gainty" <
> > mgainty@hotmail.com>
> > Sent: Tuesday, July 11, 2006 9:45 AM
> > Subject: Re: Tomcat shutdowns unexpectedly - Please help
> >
> >
> > > Hi,
> > >
> > > I hope I get it correctly, the Tomcat shutdowns when it is ideal.
> That
> > means no one is working with it and there is no connection to it.
> > > If I assume correct and this is the case, please let me know if this
> > shutdown happens when there are some connections to it.
> > > We had this problem once with Apache and OracleAS, the OracleAS
> shouted
> > down itself when it does not received any requests (made a suicide!)
> We end
> > up writing a small program which was connected to Tomcat every 10 min
> and
> > requested a dummy page. It solved it.
> > >
> > > P.S: Did you configure your Tomcat with Apache?
> > >
> > > Hope it helps you!
> > >
> > >
> > >
> > > Martin Gainty <mgainty@hotmail.com> wrote: If the app is crashing
> then
> > you would see exceptions thrown in wither catalina.out /
> > stdout_YYYYMMDD.log / stderr_YYYYMMDD.log
> > > If the service is crashing on startup(misconfigured JVM, startup
> jars
> > missing) then check the jakarta_service_YYYYMMDD.log
> > >
> > > HTH,
> > > Martin--
> > >
> *********************************************************************
> > > This email message and any files transmitted with it contain
> > confidential
> > > information intended only for the person(s) to whom this email
> message
> > is
> > > addressed.  If you have received this email message in error, please
> > notify
> > > the sender immediately by telephone or email and destroy the
> original
> > > message without making a copy.  Thank you.
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: "David Smith"
> > > To: "Tomcat Users List"
> > > Sent: Tuesday, July 11, 2006 7:51 AM
> > > Subject: Re: Tomcat shutdowns unexpectedly - Please help
> > >
> > >
> > >> I'm no expert, but off the top of my head it appears your JVM is
> > >> crashing.  Especially true if there is absolutely no logging data
> just
> > >> before the process stops.  You may have indications of what's
> happening
> > >> in other log files like syslog or a core dump file.  You may also
> want
> > >> to look at bug reports for your OS and JDK.
> > >>
> > >>
> > >> --David
> > >>
> > >> Arunan Kannan wrote:
> > >>
> > >>> Hi,
> > >>>
> > >>> Please help me in guiding to find out the root cause of this
> problem.
> > >>>
> > >>> Tomcat Version: jakarta-tomcat-4.1.31
> > >>> Server OS: SUN OS 5.8
> > >>> JDK version: j2sdk1.4.2_11
> > >>>
> > >>> Initially the tomcat server is running perfectly and there is no
> > problem.
> > >>> There is no operation done on the server. Simply it is kept idle.
> > >>> After some 3 or 4 hours the tomcat gets shutdown unexpectedly.
> > >>>
> > >>> This happens repeatedly. Whenever I start the server, after some 3
> or
> > 4
> > >>> hours it gets stopped.
> > >>> There is not enough log to find the cause.
> > >>>
> > >>> I have posted this query in lot of forum and still it is a hard
> luck.
> > >>> I configured debug=5 in server.xml under conf directory to get
> maximum
> > >>> log,
> > >>> then also no use.
> > >>> There is no application running in the tomcat server.
> > >>>
> > >>> Simply the when tomcat is started in this SUN server after a few
> ours
> > it
> > >>> stops always.
> > >>> Please help me.
> > >>> Please let me know if I need to give more information.
> > >>>
> > >>> Thanks in advance,
> > >>> Thanks and Regards,
> > >>> Arunan
> > >>>
> > >>
> > >>
> > >>
> ---------------------------------------------------------------------
> > >> 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
> > >>
> > >>
> > >
> > >
> > > ~Regards,
> > > ~~Alireza Fattahi
> > >
> > > ---------------------------------
> > > Now you can scan emails quickly with a reading pane. Get the new
> Yahoo!
> > Mail.
>
>
>
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