Re: What can cause a clean Tomcat shutdown?
- Original Message - From: Larry Isaacs [EMAIL PROTECTED] To: 'Tomcat Users List' [EMAIL PROTECTED] Sent: 2002. jlius 15. 22:38 Subject: RE: What can cause a clean Tomcat shutdown? I am not aware of any way to have a spontaneous clean shutdown in Tomcat 3.3.1 (besides sending a shutdown message like shutdown.sh does). If feasible, I would recommend compiling a custom version of Tomcat 3.3.1, with extra logging added to help detect the cause. I would start with ContextManager.shutdown(). Add some logging (there doesn't appear to be helpful logging there by default), and print a stack trace. Then see where the logs lead you, adding more logging as needed. Thanks for the suggestion, Larry. Since every servlet's destroy() is called as well, I've placed a stack trace dump into one of load-on-startup servlet's destroy() method (not that I'm afraid of custom-compiling Tomcat, just this seemed simpler). Now waiting to see what comes up (since we experience approx. one shutdown weekly, we have to be patient). I'll analyze the situation when I have the stack trace and post the findings here. Cheers, Attila. Cheers, Larry -Original Message- From: Attila Szegedi [mailto:[EMAIL PROTECTED]] Sent: Monday, July 15, 2002 9:51 AM To: Tomcat Users List Subject: What can cause a clean Tomcat shutdown? Guys, I'm asking this question again in hope someone notices this time: Except for the stop command sent to the Ajp12 connector, is there another event that will cause a Tomcat 3.3.1 to shut down cleanly? We experience sporadic spontaneous clean shutdowns of Tomcat 3.3.1 and have no idea what causes them. We know these are normal shutdowns since the servlet log shows the contexts are being unloaded and servlets' destroy() methods are being called - just as if someone has issued a tomcat.sh stop (before you ask: nobody does). Any clues appreciated. Cheers, Attila. -- Attila Szegedi home: http://www.szegedi.org -- To unsubscribe, e-mail: mailto:tomcat-user- [EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
What can cause a clean Tomcat shutdown?
Guys, I'm asking this question again in hope someone notices this time: Except for the stop command sent to the Ajp12 connector, is there another event that will cause a Tomcat 3.3.1 to shut down cleanly? We experience sporadic spontaneous clean shutdowns of Tomcat 3.3.1 and have no idea what causes them. We know these are normal shutdowns since the servlet log shows the contexts are being unloaded and servlets' destroy() methods are being called - just as if someone has issued a tomcat.sh stop (before you ask: nobody does). Any clues appreciated. Cheers, Attila. -- Attila Szegedi home: http://www.szegedi.org -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: What can cause a clean Tomcat shutdown?
What about System.exit() in a servlet? RS Attila Szegedi [EMAIL PROTECTED] on 07/15/2002 08:51:20 AM Please respond to Tomcat Users List [EMAIL PROTECTED] To:Tomcat Users List [EMAIL PROTECTED] cc: Subject:What can cause a clean Tomcat shutdown? Guys, I'm asking this question again in hope someone notices this time: Except for the stop command sent to the Ajp12 connector, is there another event that will cause a Tomcat 3.3.1 to shut down cleanly? We experience sporadic spontaneous clean shutdowns of Tomcat 3.3.1 and have no idea what causes them. We know these are normal shutdowns since the servlet log shows the contexts are being unloaded and servlets' destroy() methods are being called - just as if someone has issued a tomcat.sh stop (before you ask: nobody does). Any clues appreciated. Cheers, Attila. -- Attila Szegedi home: http://www.szegedi.org -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: What can cause a clean Tomcat shutdown?
I think I spoke a little too quicky earlier. Sorry. I believe System.exit() doesn't unload the web applications. Presently I can't think of any other way for a clean Tomcat shutdown. RS [EMAIL PROTECTED] on 07/15/2002 09:38:54 AM Please respond to Tomcat Users List [EMAIL PROTECTED] To:Tomcat Users List [EMAIL PROTECTED] cc: Subject:Re: What can cause a clean Tomcat shutdown? What about System.exit() in a servlet? RS Attila Szegedi [EMAIL PROTECTED] on 07/15/2002 08:51:20 AM Please respond to Tomcat Users List [EMAIL PROTECTED] To:Tomcat Users List [EMAIL PROTECTED] cc: Subject:What can cause a clean Tomcat shutdown? Guys, I'm asking this question again in hope someone notices this time: Except for the stop command sent to the Ajp12 connector, is there another event that will cause a Tomcat 3.3.1 to shut down cleanly? We experience sporadic spontaneous clean shutdowns of Tomcat 3.3.1 and have no idea what causes them. We know these are normal shutdowns since the servlet log shows the contexts are being unloaded and servlets' destroy() methods are being called - just as if someone has issued a tomcat.sh stop (before you ask: nobody does). Any clues appreciated. Cheers, Attila. -- Attila Szegedi home: http://www.szegedi.org -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: What can cause a clean Tomcat shutdown?
Well yes, that's what puzzles us as well - it performs a clean shutdown without anyone running tomcat.sh stop. Also, the 8007 port is blocked by a firewall so it can't receive it from afar (and wouldn't react to a non-localhost stop command anyway...). Attila. - Original Message - From: [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Monday, July 15, 2002 5:32 PM Subject: Re: What can cause a clean Tomcat shutdown? I think I spoke a little too quicky earlier. Sorry. I believe System.exit() doesn't unload the web applications. Presently I can't think of any other way for a clean Tomcat shutdown. RS [EMAIL PROTECTED] on 07/15/2002 09:38:54 AM Please respond to Tomcat Users List [EMAIL PROTECTED] To:Tomcat Users List [EMAIL PROTECTED] cc: Subject:Re: What can cause a clean Tomcat shutdown? What about System.exit() in a servlet? RS Attila Szegedi [EMAIL PROTECTED] on 07/15/2002 08:51:20 AM Please respond to Tomcat Users List [EMAIL PROTECTED] To:Tomcat Users List [EMAIL PROTECTED] cc: Subject:What can cause a clean Tomcat shutdown? Guys, I'm asking this question again in hope someone notices this time: Except for the stop command sent to the Ajp12 connector, is there another event that will cause a Tomcat 3.3.1 to shut down cleanly? We experience sporadic spontaneous clean shutdowns of Tomcat 3.3.1 and have no idea what causes them. We know these are normal shutdowns since the servlet log shows the contexts are being unloaded and servlets' destroy() methods are being called - just as if someone has issued a tomcat.sh stop (before you ask: nobody does). Any clues appreciated. Cheers, Attila. -- Attila Szegedi home: http://www.szegedi.org -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: What can cause a clean Tomcat shutdown?
I am not aware of any way to have a spontaneous clean shutdown in Tomcat 3.3.1 (besides sending a shutdown message like shutdown.sh does). If feasible, I would recommend compiling a custom version of Tomcat 3.3.1, with extra logging added to help detect the cause. I would start with ContextManager.shutdown(). Add some logging (there doesn't appear to be helpful logging there by default), and print a stack trace. Then see where the logs lead you, adding more logging as needed. Cheers, Larry -Original Message- From: Attila Szegedi [mailto:[EMAIL PROTECTED]] Sent: Monday, July 15, 2002 9:51 AM To: Tomcat Users List Subject: What can cause a clean Tomcat shutdown? Guys, I'm asking this question again in hope someone notices this time: Except for the stop command sent to the Ajp12 connector, is there another event that will cause a Tomcat 3.3.1 to shut down cleanly? We experience sporadic spontaneous clean shutdowns of Tomcat 3.3.1 and have no idea what causes them. We know these are normal shutdowns since the servlet log shows the contexts are being unloaded and servlets' destroy() methods are being called - just as if someone has issued a tomcat.sh stop (before you ask: nobody does). Any clues appreciated. Cheers, Attila. -- Attila Szegedi home: http://www.szegedi.org -- To unsubscribe, e-mail: mailto:tomcat-user- [EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: What can cause a clean Tomcat shutdown?
Well hope you don't have some kind of cron job that periodically shuts Tomcat down. RS Attila Szegedi [EMAIL PROTECTED] on 07/15/2002 03:24:51 PM Please respond to Tomcat Users List [EMAIL PROTECTED] To:Tomcat Users List [EMAIL PROTECTED] cc: Subject:Re: What can cause a clean Tomcat shutdown? Well yes, that's what puzzles us as well - it performs a clean shutdown without anyone running tomcat.sh stop. Also, the 8007 port is blocked by a firewall so it can't receive it from afar (and wouldn't react to a non-localhost stop command anyway...). Attila. - Original Message - From: [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Monday, July 15, 2002 5:32 PM Subject: Re: What can cause a clean Tomcat shutdown? I think I spoke a little too quicky earlier. Sorry. I believe System.exit() doesn't unload the web applications. Presently I can't think of any other way for a clean Tomcat shutdown. RS [EMAIL PROTECTED] on 07/15/2002 09:38:54 AM Please respond to Tomcat Users List [EMAIL PROTECTED] To:Tomcat Users List [EMAIL PROTECTED] cc: Subject:Re: What can cause a clean Tomcat shutdown? What about System.exit() in a servlet? RS Attila Szegedi [EMAIL PROTECTED] on 07/15/2002 08:51:20 AM Please respond to Tomcat Users List [EMAIL PROTECTED] To:Tomcat Users List [EMAIL PROTECTED] cc: Subject:What can cause a clean Tomcat shutdown? Guys, I'm asking this question again in hope someone notices this time: Except for the stop command sent to the Ajp12 connector, is there another event that will cause a Tomcat 3.3.1 to shut down cleanly? We experience sporadic spontaneous clean shutdowns of Tomcat 3.3.1 and have no idea what causes them. We know these are normal shutdowns since the servlet log shows the contexts are being unloaded and servlets' destroy() methods are being called - just as if someone has issued a tomcat.sh stop (before you ask: nobody does). Any clues appreciated. Cheers, Attila. -- Attila Szegedi home: http://www.szegedi.org -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: What can cause a clean Tomcat shutdown?
Well hope you don't have some kind of cron job that periodically shuts Tomcat down. RS You mean, like a root kit? -- Joel Rees [EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
