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From "Arunan Kannan" <arun...@gmail.com>
Subject Re: Tomcat shutdowns unexpectedly - Please help
Date Thu, 20 Jul 2006 05:09:09 GMT
Please help....:(

>
> 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
> > > >
> > > > ---------------------------------
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