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From "Mead, Jennifer L - VSCM" <Mead.Jenni...@vectorscm.com>
Subject RE: Tomcat shutdowns unexpectedly - Please help
Date Thu, 13 Jul 2006 14:30:41 GMT
Are you the unix admin?  Or do you have an unix admin to help out?
There is limited things one can do without being root.  The easy stuff
to do is check out how much memory there is, how much Gig on that
particular machine, look at the swap size that is configured, run "ipcs"
to look at what memory is loaded and how it is being used, compare that
to the other boxes.  Possibly "top" is loaded on the boxes.  The system
admin has other tools available to them that help further.  You can send
your core dumps off to SUN.  If you have the machines configured exactly
the same in every way yet one is dieing then I suspect it is hardware
related.

Jen 

-----Original Message-----
From: Arunan Kannan [mailto:arunank@gmail.com] 
Sent: Thursday, July 13, 2006 7:03 AM
To: Tomcat Users List
Subject: Re: Tomcat shutdowns unexpectedly - Please help

Can you please let me know how to diagnoise the issue further please
help

thanks again,
arunan


On 7/13/06, Mead, Jennifer L - VSCM <Mead.Jennifer@vectorscm.com> wrote:
>
> 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
>
> -----Original Message-----
> From: Arunan Kannan [mailto:arunank@gmail.com]
> 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 
> > 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(StandardCon
> te
> 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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