Re: Which listeners required in server.xml?
Bill Barker wrote: !-- JMX Support for the Tomcat server. Documentation at /docs/non-existent.html -- Listener className=org.apache.catalina.mbeans.ServerLifecycleListener / This looks like it is left over from the admin webapp (RIP). It doesn't look like it does anything particularly useful anymore, but again the warning about weird errors. There is almost certainly some code in there that is now redundant. However, this listener is currently where we make sure all of the mbeans are destroyed when a server stops. Only an issue when embedding and starting/stopping the server. So, scope for clean-up but at least some code needs to remain here or elsewhere. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Which listeners required in server.xml?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Bill, On 5/30/2009 12:43 AM, Bill Barker wrote: Christopher Schultz ch...@christopherschultz.net wrote in message Adding the APR library will give you a significant performance improvement even with the plain-old HTTP connector. It might be worth installing APR and leaving that listener in there. Urm, and u are basing this on what? I am basing this on my recent benchmarking, with some results available on this list under the thread Apache httpd vs Tomcat static content performance. I'm not just talking out of my ass, here. A low-traffic dynamic site should see next to nothing using APR, and could even lose (given the interlocks to JNI). It all depends on who is smarter, the JVM developer, or the APR develper for CentOS. CentOS is just another GNU/Linux flavor. I doubt any optimizations are made especially for it (or other Linux flavors), so I wouldn't worry too much about the APR developer for CentOS having to do too much work to get decent performance out of it. It's not like httpd is a dog on CentOS or anything. Again, to the OP, profile both configurations for your OS, and make the decision then. +1 - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkokEQ0ACgkQ9CaO5/Lv0PCxewCfeijsi0vMkH6nwuIRi6IUpdyp GgwAniEROVb9ScKvEzjHICuiLv0CEQFR =NttG -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Which listeners required in server.xml?
Running tomcat 6.0.18 server.xml has the following listener's enabled by default: !--APR library loader. Documentation at /docs/apr.html -- Listener className=org.apache.catalina.core.AprLifecycleListener SSLEngine=on / !--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -- Listener className=org.apache.catalina.core.JasperListener / !-- JMX Support for the Tomcat server. Documentation at /docs/non-existent.html -- Listener className=org.apache.catalina.mbeans.ServerLifecycleListener / Listener className=org.apache.catalina.mbeans.GlobalResourcesLifecycleListener / I am using standalone tomcat (no apache) without SSL, without APR, I am not using any manager or host-manager applications .. Do I need these listeners or can I remove some/all of them? -- View this message in context: http://www.nabble.com/Which-listeners-required-in-server.xml--tp23787784p23787784.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Which listeners required in server.xml?
DONT_NEEDdont need with Comment Running tomcat 6.0.18 server.xml has the following listener's enabled by default: !--APR library loader. Documentation at /docs/apr.html -- Listener className=org.apache.catalina.core.AprLifecycleListener SSLEngine=on / DONT_NEEDNO Implementation of LifecycleListener that will init and and destroy APR? then comment this out !--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -- Listener className=org.apache.catalina.core.JasperListener / DONT_NEEDNO implementation of listener is designed to initialize Jasper before web applications are started then DONT_NEEDcomment out !-- JMX Support for the Tomcat server. Documentation at /docs/non-existent.html -- Listener className=org.apache.catalina.mbeans.ServerLifecycleListener / DONT_NEEDNo implementation of LifecycleListener that instantiates the set of MBeans associated with the DONT_NEEDcomponents of a running instance of Catalina. (MX Agents) then comment this out Listener className=org.apache.catalina.mbeans.GlobalResourcesLifecycleListener / DONT_NEEDNo Implementation of LifecycleListener that instantiates the set of MBeans associated with global DONT_NEEDJNDI resources that are subject to management. then comment this out! I am using standalone tomcat (no apache) without SSL, without APR, I am not using any manager or host-manager applications .. Do I need these listeners or can I remove some/all of them? DONT_NEEDIf No Apr then remove AprLifecycleListener DONT_NEEDIf No Jsp then remove JasperListener DONT_NEEDIf No MBean then remove ServerLifecycleListener DONT_NEEDIf No JNDI then remove GlobalResourcesLifecycleListener -- View this message in context: http://www.nabble.com/Which-listeners-required-in-server.xml--tp23787784p23787784.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org _ Hotmail® has ever-growing storage! Don’t worry about storage limits. http://windowslive.com/Tutorial/Hotmail/Storage?ocid=TXT_TAGLM_WL_HM_Tutorial_Storage1_052009
RE: Which listeners required in server.xml?
mgainty wrote: Do I need these listeners or can I remove some/all of them? DONT_NEEDIf No Apr then remove AprLifecycleListener DONT_NEEDIf No Jsp then remove JasperListener DONT_NEEDIf No MBean then remove ServerLifecycleListener DONT_NEEDIf No JNDI then remove GlobalResourcesLifecycleListener Thank you very much. I am not explicitly using JNDI or MBean in my app, but I am not sure if Tomcat relies on this functionality either internally or with Spring? -- View this message in context: http://www.nabble.com/Which-listeners-required-in-server.xml--tp23787784p23788146.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Which listeners required in server.xml?
Spring and/or DI frameworks do not use either JNDI or MXbean unless specifically configured to do so free to disable those listeners as they are serve no useful purpose Martin Gainty __ Verzicht und Vertraulichkeitanmerkung/Note de déni et de confidentialité Diese Nachricht ist vertraulich. Sollten Sie nicht der vorgesehene Empfaenger sein, so bitten wir hoeflich um eine Mitteilung. Jede unbefugte Weiterleitung oder Fertigung einer Kopie ist unzulaessig. Diese Nachricht dient lediglich dem Austausch von Informationen und entfaltet keine rechtliche Bindungswirkung. Aufgrund der leichten Manipulierbarkeit von E-Mails koennen wir keine Haftung fuer den Inhalt uebernehmen. Ce message est confidentiel et peut être privilégié. Si vous n'êtes pas le destinataire prévu, nous te demandons avec bonté que pour satisfaire informez l'expéditeur. N'importe quelle diffusion non autorisée ou la copie de ceci est interdite. Ce message sert à l'information seulement et n'aura pas n'importe quel effet légalement obligatoire. Étant donné que les email peuvent facilement être sujets à la manipulation, nous ne pouvons accepter aucune responsabilité pour le contenu fourni. Date: Fri, 29 May 2009 15:50:00 -0700 From: johnpi...@yahoo.com To: users@tomcat.apache.org Subject: RE: Which listeners required in server.xml? mgainty wrote: Do I need these listeners or can I remove some/all of them? DONT_NEEDIf No Apr then remove AprLifecycleListener DONT_NEEDIf No Jsp then remove JasperListener DONT_NEEDIf No MBean then remove ServerLifecycleListener DONT_NEEDIf No JNDI then remove GlobalResourcesLifecycleListener Thank you very much. I am not explicitly using JNDI or MBean in my app, but I am not sure if Tomcat relies on this functionality either internally or with Spring? -- View this message in context: http://www.nabble.com/Which-listeners-required-in-server.xml--tp23787784p23788146.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org _ Hotmail® has ever-growing storage! Don’t worry about storage limits. http://windowslive.com/Tutorial/Hotmail/Storage?ocid=TXT_TAGLM_WL_HM_Tutorial_Storage1_052009
Re: Which listeners required in server.xml?
johnrock johnpi...@yahoo.com wrote in message news:23787784.p...@talk.nabble.com... Running tomcat 6.0.18 server.xml has the following listener's enabled by default: !--APR library loader. Documentation at /docs/apr.html -- Listener className=org.apache.catalina.core.AprLifecycleListener SSLEngine=on / If you are not using APR, than you don't need this (and removing it gets rid of a message at startup). !--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -- Listener className=org.apache.catalina.core.JasperListener / If you are never going to use JSP pages, can probably remove it. However, it's pretty light-weight so would leave it in just so that I don't have to spend time with any weird errors. !-- JMX Support for the Tomcat server. Documentation at /docs/non-existent.html -- Listener className=org.apache.catalina.mbeans.ServerLifecycleListener / This looks like it is left over from the admin webapp (RIP). It doesn't look like it does anything particularly useful anymore, but again the warning about weird errors. Listener className=org.apache.catalina.mbeans.GlobalResourcesLifecycleListener / Also left over from the admin webapp (RIP). This one really doesn't do anything particularly useful anymore, so it is safe to remove. It should probably be removed from the distribution as well (at least for TC 7), since it was a bad idea in the first place. I am using standalone tomcat (no apache) without SSL, without APR, I am not using any manager or host-manager applications .. Do I need these listeners or can I remove some/all of them? -- View this message in context: http://www.nabble.com/Which-listeners-required-in-server.xml--tp23787784p23787784.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Which listeners required in server.xml?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 John, On 5/29/2009 6:08 PM, johnrock wrote: I am using standalone tomcat (no apache) without SSL, without APR, I am not using any manager or host-manager applications .. Adding the APR library will give you a significant performance improvement even with the plain-old HTTP connector. It might be worth installing APR and leaving that listener in there. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkogqhcACgkQ9CaO5/Lv0PDCKwCfRq5BCxjaog1MQYTqbMzY7zpc r4AAn0cu/kmZmWNq+stofg9zLEXeDP0p =/Oi6 -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Which listeners required in server.xml?
Christopher Schultz ch...@christopherschultz.net wrote in message news:4a20aa17.2050...@christopherschultz.net... -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 John, On 5/29/2009 6:08 PM, johnrock wrote: I am using standalone tomcat (no apache) without SSL, without APR, I am not using any manager or host-manager applications .. Adding the APR library will give you a significant performance improvement even with the plain-old HTTP connector. It might be worth installing APR and leaving that listener in there. Urm, and u are basing this on what? A low-traffic dynamic site should see next to nothing using APR, and could even lose (given the interlocks to JNI). It all depends on who is smarter, the JVM developer, or the APR develper for CentOS. Again, to the OP, profile both configurations for your OS, and make the decision then. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkogqhcACgkQ9CaO5/Lv0PDCKwCfRq5BCxjaog1MQYTqbMzY7zpc r4AAn0cu/kmZmWNq+stofg9zLEXeDP0p =/Oi6 -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
