I haven't used this, but thirty seconds' search on "tomcat memory leak tools" led me to this: http://java-source.net/open-source/profilers/jmemprof
jk On Thu, Jul 17, 2008 at 4:34 PM, STRUTS SL. Mailing List < [EMAIL PROTECTED]> wrote: > I know of tools that help test my application, for which I have looked and > looked again the code. Or some techniques to help me refine ... > > thanks > > ________________________________ > > De: Jianshuo Niu [mailto:[EMAIL PROTECTED] > Enviado el: jue 17/07/2008 22:22 > Para: Struts Users Mailing List > Asunto: [SPAM] Re: Help please TOMCAT 5 + Struts > > > > I would take a look at the code first to see if there is any unclosed > connection, loops, etc. Then, check the jdk version and tomcat config > files. > > > On Thu, Jul 17, 2008 at 4:10 PM, STRUTS SL. Mailing List < > [EMAIL PROTECTED]> wrote: > > > The application is started well and after a few hours or minutes that > stays > > frozen. without accepting more users. > > > > thanks to all are very helpful > > > > ________________________________ > > > > De: Jianshuo Niu [mailto:[EMAIL PROTECTED] > > Enviado el: jue 17/07/2008 19:41 > > Para: Struts Users Mailing List > > Asunto: [SPAM] Re: Help please TOMCAT 5 + Struts > > > > > > > > It looks like that something wrong in your code/archtechture. Was it slow > > right after you deployed the app, or gettting slower during the > operation? > > > > On Thu, Jul 17, 2008 at 12:45 PM, Paolo Niccolò Giubelli < > > [EMAIL PROTECTED]> wrote: > > > > > Maybe you got some memory leak in your code. Use a memory-inspecting > tool > > > and check for static objects. > > > If you check your memory usage, maybe you'll find that you eat all the > > > memory available, so you should tune your tomcat server changing the > > memory > > > parameters. > > > Regards, > > > Paolo Niccolò Giubelli > > > > > > STRUTS SL. Mailing List ha scritto: > > > > > > Hello for everybody; > > >> > > >> > > >> We have a big trouble with our Web Application. Our Tomcat 5.5 Server > is > > >> working properly, as we can see. The problem is concerning to the Web > > >> Project. It's frizzing randomly. It doesn't matter how many time was > > >> reloaded. From this moment never user can get in the Web Site. At the > > >> browser address bar we can see the session id that was assigned to the > > new > > >> session, but never the home page is presented, and we must be going to > > >> reload it. This reloading is making on the Tomcat Server. > > >> > > >> > > >> Web application historical summary: > > >> > > >> > > >> The Trapsatur Project was hosting on a Tomcat 4 Web Server, it was > > >> installed in our offices. It was working almost properly, but slowly. > > Cause > > >> that, we decided to get out this Server to be housing at office's ISP, > > front > > >> to Internet. At this moment we passed to Tomcat 5.5.26. It was begin > of > > >> troubles. > > >> > > >> > > >> We are adjusting the Web Application and the Tomcat Server > continuously. > > >> We resolved problems with DB connection, someone errors with SMTP > > server. In > > >> addition we adjusted several Tomcat's and JVM's parameters. Now we are > > doing > > >> some tests. We have assumed that the problem is the difference between > > >> servlet.jar used by our Web Project, and the servlet.jar used by > Tomcat > > >> Server. > > >> > > >> > > >> We want to thank in advance any help from any body. > > >> > > >> Best regard; > > >> > > >> > > >> /* Some mistakes catalina.out */ > > >> > > >> > > >> Exception in thread "DefaultQuartzScheduler_Worker-0" > > >> java.lang.OutOfMemoryError: PermGen space > > >> > > >> Exception in thread "DefaultQuartzScheduler_QuartzSchedulerThread" > > >> java.lang.OutOfMemoryError: PermGen space > > >> > > >> Exception in thread "http-80-Processor31" java.lang.OutOfMemoryError: > > >> PermGen space > > >> > > >> Exception in thread "http-80-Processor32" java.lang.OutOfMemoryError: > > >> PermGen space > > >> > > >> Exception in thread > > >> "ContainerBackgroundProcessor[StandardEngine[Catalina]]" > > >> java.lang.OutOfMemoryError: PermGen space > > >> > > >> 17-jul-2008 16:37:56 org.apache.coyote.http11.Http11BaseProtocol pause > > >> > > >> INFO: Pausing Coyote HTTP/1.1 on http-80 > > >> > > >> java.lang.reflect.InvocationTargetException > > >> > > >> Exception in thread "main" java.lang.OutOfMemoryError: PermGen space > > >> > > >> 17-jul-2008 16:38:59 org.apache.catalina.core.AprLifecycleListener > > >> lifecycleEvent > > >> > > >> INFO: The Apache Tomcat Native library which allows optimal > performance > > in > > >> production environments was not found on the java.library.path: > > >> > > > /opt/jdk1.5.0_15/jre/lib/i386/server:/opt/jdk1.5.0_15/jre/lib/i386:/opt/jdk1.5.0_15/jre/../lib/i386 > > >> > > >> 17-jul-2008 16:38:59 org.apache.coyote.http11.Http11BaseProtocol init > > >> > > >> > > >> > > >> ******************************** > > >> > > >> Christian A. Villamizar Lamus. > > >> > > >> Dpto. Informática - Trapsatur. > > >> > > >> Tel: 91.542.6666 - Fax: 91.548.0044 > > >> > > >> ?-mail: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED] > > > > >> www.trapsatur.com <http://www.trapsatur.com/> > > >> www.excursionesenmadrid.com <http://www.excursionesenmadrid.com/> > > >> www.excursionesenmadrid.es <http://www.excursionesenmadrid.es/> > > >> C/ San Bernardo 5 - 7. > > >> 28013 - Madrid. España. > > >> > > >> > > >> > > > > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > -- > > Jianshuo Niu > > > > > > > > > -- > Jianshuo Niu > > > -- Jim Kiley Technical Consultant | Summa [p] 412.258.3346 [m] 412.445.1729 http://www.summa-tech.com
