Hi, Look the thread dump generates some stack trace information which can help you identify the portion of the source where the code might be getting stuck. (Total Number of thread running/active in JVM) You have to check those portions of the code...is there any infinite loop while getting connections or in some other way...
Importantly have you ever tried doing any performance testing / load testing for your application. That helps determine where the application generally breaks!!! or the limits of the application :). Hope thinks works out for you. Arnab C -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Wednesday, February 18, 2004 3:26 PM To: Tomcat Users List Subject: Réf. : RE: Réf. : Re: Very Very Slow performance of Tomcat Arnab, Do you know how to use ThreadDump in order to detect application hanging reasons ? _______________________________________________ NATEXIS ASSET MANAGEMENT Meissa SAKHO 01 58 19 45 71. . . . . . . . . . . . (84571) [EMAIL PROTECTED] "Arnab Chakravarty" <[EMAIL PROTECTED]> 18/02/2004 10:05 Veuillez répondre à "Tomcat Users List" Pour : "Tomcat Users List" <[EMAIL PROTECTED]> cc : Objet : RE: Réf. : Re: Very Very Slow performance of Tomcat Hi, Can u check the total number of concurrent connections (Apache) when the problem occurs: The way to do this is: ptree | grep -c httpd : Would give the number of concurrent connections. The values of MaxClients / maxProcessor varies from application to application and the load one would expect when the application is live. ThreadDump helps detecting where the application is getting hanged...connections problems is one of the issues...can see the same in the dumps... Arnab C -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Wednesday, February 18, 2004 2:11 PM To: Tomcat Users List Subject: Réf. : Re: Very Very Slow performance of Tomcat Antonio, I'm facing to the same performance problems with Tomcat. My the maxProcessor value is equal to 75 while the Apache's MaxClients is equals to 150. the MaxKeepAliveRequests of apache is equal to 100 Do you understand the relationship between theses attributes ? _______________________________________________ NATEXIS ASSET MANAGEMENT Meissa SAKHO 01 58 19 45 71. . . . . . . . . . . . (84571) [EMAIL PROTECTED] Antonio Fiol Bonnín <[EMAIL PROTECTED]> 18/02/2004 08:55 Veuillez répondre à "Tomcat Users List" Pour : Tomcat Users List <[EMAIL PROTECTED]> cc : Objet : Re: Very Very Slow performance of Tomcat Is maxProcessors lower than Apache's MaxClients? Are you hitting the max. number of connections to your database? When it goes slow, does it hang later? Are you closing all your connections to the DB? Q: ---> Is there a "checklist" somewhere for this kind of things? It would be useful for nearly everyone. Antonio Fiol Deepak Hegde wrote: >Hi All, > >I am running Tomcat 4 and Apache 1.3 and Struts Framework on Sun Sparc >machine having O.S 5.8 version. > >Web application is developed to use Postgres Database also. > >I am facing lots of performance issues with Tomcat i.e sometimes tomcat process hangs and website stops opening and some times it goes very slow. The Problem gets sloved when i restart the tomcat service again. > >I am really struggling find out the reason for this.... > >Somebody please help me .. > >Regards, >Deepak > > > > L'integrite de ce message n'etant pas assuree sur internet, Natexis Banques Populaires ne peut etre tenu responsable de son contenu. Toute utilisation ou diffusion non autorisee est interdite. Si vous n'etes pas destinataire de ce message, merci de le detruire et d'avertir l'expediteur. The integrity of this message cannot be guaranteed on the Internet. Natexis Banques Populaires can not therefore be considered responsible for the contents.Any unauthorized use or dissemination is prohibited. If you are not the intended recipient of this message, then please delete it and notify the sender. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] L'integrite de ce message n'etant pas assuree sur internet, Natexis Banques Populaires ne peut etre tenu responsable de son contenu. Toute utilisation ou diffusion non autorisee est interdite. Si vous n'etes pas destinataire de ce message, merci de le detruire et d'avertir l'expediteur. The integrity of this message cannot be guaranteed on the Internet. Natexis Banques Populaires can not therefore be considered responsible for the contents.Any unauthorized use or dissemination is prohibited. If you are not the intended recipient of this message, then please delete it and notify the sender. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]