Hello Muralidhar, thank you for your quick reply.
I realize that the absolute startup time in my test is not very long. What concerns me is the difference between the startup times of tomcat 6 and tomcat 8 with the very same application. I wonder, if the longer startup time could be the result of some misconfiguration or misuse I do not see. > Gesendet: Montag, 15. Dezember 2014 um 14:40 Uhr > Von: "Yaragalla Muralidhar" <yaragallamur...@gmail.com> > An: "Tomcat Users List" <users@tomcat.apache.org> > Betreff: Re: Startup of tomcat 8 takes twice as long as startup of tomcat 6 > > for me it is taking more than that. I have deployed a simple war file. It > took so long to deploy it. > > omcat-8.0.15\webapps\ROOT has finished in 240 ms > 15-Dec-2014 19:08:32.348 INFO [main] > org.apache.coyote.AbstractProtocol.start St > arting ProtocolHandler ["http-nio-8080"] > 15-Dec-2014 19:08:32.357 INFO [main] > org.apache.coyote.AbstractProtocol.start St > arting ProtocolHandler ["ajp-nio-8009"] > 15-Dec-2014 19:08:32.360 INFO [main] > org.apache.catalina.startup.Catalina.start > Server startup in 336069 ms > > > *Thanks and Regards,* > Muralidhar Yaragalla. > > *http://yaragalla.blogspot.in/ <http://yaragalla.blogspot.in/>* > > On Mon, Dec 15, 2014 at 7:03 PM, gch...@gmx.de <gch...@gmx.de> wrote: > > > > > > > > Hi, > > > > we used to deploy our webapp in a tomcat 6.0.35 and want to upgrade to > > tomcat 8.0.9. > > During testing we discovered, that the startup process of tomcat 8 is > > twice as long as the startup process of tomcat 6 (with the same single > > webapp deployed) > > > > My test system is as follows: > > Windows 7, JRE 1.7.0, Tomcat 6.0.35/8.0.9 > > > > Inspection of the log files revealed, that the additional time is used for > > class loading: > > > > Log of tomcat 6: > > ... > > Nov 28, 2014 5:07:59 PM org.apache.tomcat.util.digester.Digester > > endDocument > > Fein: endDocument() > > Nov 28, 2014 5:07:59 PM org.apache.catalina.loader.WebappClassLoader > > loadClass > > Fein: loadClass(org.springframework.web.util.Log4jConfigListener, false) > > ... > > Fein: Parent class loader is: WebappClassLoader > > context: > > delegate: false > > repositories: > > ----------> Parent Classloader: > > org.apache.catalina.loader.StandardClassLoader@189ff97 > > Nov 28, 2014 5:08:08 PM org.apache.jasper.compiler.JspRuntimeContext > > initClassPath > > Fein: Compilation classpath initialized: ... > > Nov 28, 2014 5:08:08 PM org.apache.jasper.servlet.JspServlet init > > Fein: Scratch dir for the JSP engine is: ... > > Nov 28, 2014 5:08:08 PM org.apache.jasper.servlet.JspServlet init > > Fein: IMPORTANT: Do not modify the generated servlets > > Nov 28, 2014 5:08:08 PM org.apache.catalina.core.StandardContext start > > Fein: Starting completed > > ... > > Nov 28, 2014 5:08:09 PM org.apache.catalina.startup.Catalina start > > Information: Server startup in 10861 ms > > > > Log of tomcat 8: > > ... > > 28-Nov-2014 16:09:09.128 FINER [localhost-startStop-1] > > org.apache.tomcat.util.scan.StandardJarScanner.scan Not scanning JAR > > [file:/C:/Program%20Files/tomcat%208/tolina_webserver-3.0.0-SNAPSHOT-20141103-130423/bin/tomcat-juli.jar] > > from classpath > > 28-Nov-2014 16:09:09.128 FINE [localhost-startStop-1] > > org.apache.catalina.loader.WebappClassLoader.loadClass > > loadClass(org.apache.jasper.servlet.JasperInitializer, false) > > 28-Nov-2014 16:09:09.128 FINE [localhost-startStop-1] > > org.apache.catalina.loader.WebappClassLoader.loadClass Delegating to parent > > classloader1 java.net.URLClassLoader@1c47dd5 > > 28-Nov-2014 16:09:09.128 FINE [localhost-startStop-1] > > org.apache.catalina.loader.WebappClassLoader.loadClass Loading class from > > parent > > ... > > 28-Nov-2014 16:09:28.362 FINE [localhost-startStop-1] > > org.apache.jasper.compiler.JspRuntimeContext.<init> Parent class loader is: > > WebappClassLoader > > context: /manager > > delegate: false > > ----------> Parent Classloader: > > java.net.URLClassLoader@1c47dd5 > > 28-Nov-2014 16:09:28.362 FINE [localhost-startStop-1] > > org.apache.jasper.compiler.JspRuntimeContext.initClassPath Compilation > > classpath initialized: ... > > 28-Nov-2014 16:09:28.362 FINE [localhost-startStop-1] > > org.apache.jasper.servlet.JspServlet.init Scratch dir for the JSP engine > > is: ... > > 28-Nov-2014 16:09:28.362 FINE [localhost-startStop-1] > > org.apache.jasper.servlet.JspServlet.init IMPORTANT: Do not modify the > > generated servlets > > 28-Nov-2014 16:09:28.362 FINE [localhost-startStop-1] > > org.apache.tomcat.util.modeler.Registry.registerComponent Managed= > > Catalina:type=JspMonitor,WebModule=//localhost/manager,name=jsp,J2EEApplication=none,J2EEServer=none > > 28-Nov-2014 16:09:28.362 FINE [localhost-startStop-1] > > org.apache.tomcat.util.modeler.BaseModelMBean.preRegister preRegister > > org.apache.jasper.servlet.JspServlet@1067d4c > > Catalina:type=JspMonitor,WebModule=//localhost/manager,name=jsp,J2EEApplication=none,J2EEServer=none > > 28-Nov-2014 16:09:28.362 FINE [localhost-startStop-1] > > org.apache.catalina.core.StandardContext.startInternal Starting completed > > 28-Nov-2014 16:09:28.362 FINE [localhost-startStop-1] > > org.apache.catalina.util.LifecycleBase.setStateInternal Setting state for > > [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/manager]] > > to [STARTING] > > 28-Nov-2014 16:09:28.362 FINE [localhost-startStop-1] > > org.apache.catalina.util.LifecycleBase.setStateInternal Setting state for > > [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/manager]] > > to [STARTED] > > ... > > 28-Nov-2014 16:09:28.377 FINE [main] > > org.apache.catalina.util.LifecycleBase.setStateInternal Setting state for > > [StandardServer[8005]] to [STARTED] > > 28-Nov-2014 16:09:28.377 INFO [main] > > org.apache.catalina.startup.Catalina.start Server startup in 21443 ms > > > > Searching the web and the mail archives resulted in quite a few hints how > > to improve performance generally. > > I followed the instructions on wiki.apache.org/tomcat/HowTo/FasterStartUp, > > in particular: > > - Disabling JAR scanning (metadata-complete="true", <absolute-ordering/> > > in the <web-app>. > > - in catalina.properties: > > tomcat.util.scan.StandardJarScanFilter.jarsToSkip=\*.jar > > org.apache.catalina.startup.ContextConfig.jarsToSkip=\*.jar > > org.apache.catalina.startup.TldConfig.jarsToSkip=\*.jar > > - Removing the web socket API and implementation JARs > > - Changing the entropy source (-Djava.security.egd=file:/dev/./urandom) > > > > These changes were in effect when the above logs were written. While these > > changes resulted in a faster startup process (on both tomcats), I found no > > clue about why tomcat 8 takes longer in general to complete server startup. > > > > I compared the jars loaded in both cases and tried to remove the two > > additional jars in tomcat 8. > > I compared the configurations of both tomcats and aligned the registered > > listeners and disabled XMLValidation and XMLNameSpaceAware in server.xml. I > > reduced the bigger MIME-Mapping in web.xml of tomcat 8 > > to the MIME-Mapping of tomcat 6. > > I compared the number of classes and ressources loaded and the number of > > ClassNotFound- or RessourceNotFound-Messages in the log files. > > > > None of these actions resulted in new insights to the problem. > > > > Any advice on this subject or any hint to additional ressources that could > > help would be appreciated very much. > > > > Best regards, > > Gero > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > > For additional commands, e-mail: users-h...@tomcat.apache.org > > > > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
