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Subject: RE: Tomcat shutdowns unexpectedly - Please help
Date: Thu, 13 Jul 2006 06:56:05 -0700
Message-ID: <5DD1E2BCE7C37A43B736388E5D8EE180010B22D1@ri-cnfqe161.cnf.com>
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Thread-Topic: Tomcat shutdowns unexpectedly - Please help
thread-index: Acamc90mrH+/ekLAQMGUDof3750/dgAECeYg
From: "Mead, Jennifer L - VSCM" <Mead.Jennifer@vectorscm.com>
To: "Tomcat Users List" <users@tomcat.apache.org>

It sounds like that SUN box is either configured different than the
other SUN machines or you have some bad memory modules in it.

Jen=20

-----Original Message-----
From: Arunan Kannan [mailto:arunank@gmail.com]=20
Sent: Thursday, July 13, 2006 4:59 AM
To: Tomcat Users List; Martin Gainty
Subject: Re: Tomcat shutdowns unexpectedly - Please help

Hi,

Even after making the timeout parameter to 0, still the problem exist.

Even I ran a continous polling application in the tomcat and still the
problem exist.

The tomcat server gets shutdown unexpectedly after some irregular period
of time 3 or 4 or 6 hrs. However this problem doesn't exists in other
sun machines.
Only in a particular system it is occuring. Please help me out to find
whats the problem with the system and the tomcat server.
Machine Detail: SUN OS 5.8
Tomcat versio: 4.1

Please help.
Thanks again.


On 7/11/06, Arunan Kannan <arunank@gmail.com> wrote:
>
>  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=20
> system. I couldn't find any thing relevent to this crash on syslog or=20
> 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=20
> Tomcat-Standalone Apache Tomcat/4.1.31 Jul 10, 2006 11:57:21 PM=20
> org.apache.coyote.http11.Http11Protocol start
> INFO: Starting Coyote HTTP/1.1 on http-8080 Jul 10, 2006 11:57:21 PM=20
> org.apache.jk.common.ChannelSocket init
> INFO: JK2: ajp13 listening on /0.0.0.0:8009 Jul 10, 2006 11:57:21 PM=20
> org.apache.jk.server.JkMain start
> INFO: Jk running ID=3D0 time=3D2/53  =
config=3D/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=20
> load() excepti on
> javax.servlet.ServletException: Wrapper cannot find servlet class=20
> 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=20
> 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=20
> 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 -->=20
> <Connector className=3D"org.apache.coyote.tomcat4.CoyoteConnector"
>            port=3D"9080" minProcessors=3D"5" maxProcessors=3D"75"
>            enableLookups=3D"true" redirectPort=3D"9443"
>            acceptCount=3D"100" debug=3D"0" connectionTimeout=3D"20000"
>            useURIValidationHack=3D"false" =
disableUploadTimeout=3D"true" />
> <!-- Note : To disable connection timeouts, set connectionTimeout=20
> 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=20
> to 4 hr. There is no action done in this time. Then the tomcat gets=20
> shutdown unexpectedly.
>
> I will try your suggestion and let you know the result. Thanks for=20
> 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=20
> > socket_KeepAlive is set on Also socket_timeout is set to 0 so it=20
> > never times out
> >
> > M-
> > ********************************************************************
> > * This email message and any files transmitted with it contain=20
> > confidential information intended only for the person(s) to whom=20
> > this email message is addressed.  If you have received this email=20
> > message in error, please notify the sender immediately by telephone=20
> > or email and destroy the original message without making a copy. =20
> > 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.=20
> > > 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=20
> > > 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=20
> > suicide!) We end up writing a small program which was connected to=20
> > 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=20
> > > then
> > you would see exceptions thrown in wither catalina.out /=20
> > stdout_YYYYMMDD.log / stderr_YYYYMMDD.log
> > > If the service is crashing on startup(misconfigured JVM, startup=20
> > > 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=20
> > > message
> > is
> > > addressed.  If you have received this email message in error,=20
> > > please
> > notify
> > > the sender immediately by telephone or email and destroy the=20
> > > 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=20
> > >> 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=20
> > >>> 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=3D5 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=20
> > >> 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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