Re: Restart-On-Failure for Tomcat?
Hi Paul, I hope you don't mind the direct e-mail. Would you mind sharing your wget script? Thanks, Robert On Sat, 05 Feb 2005 23:02:50 -0600, Paul [EMAIL PROTECTED] wrote: I would suggest either a process monitor or using cron to run script every minute or so that would use wget to get a test page and if it fails, restart tomcat. I've been using the latter of the two with good success for a while. Of course, I'm assuming your using Linux or the like, but if you're on Win then you can set the recovery options under services. I'm not aware of anything inherent in Tomcat. Regards, -Paul Robert McIntosh wrote: Hi, I'm supporting a web application running on Apache (2.0x) /Tomcat(5.0.x) w/ mod-jk. The web application seems to cause Tomcat (5.0.28) to fail on average once a week. Restarting tomcat tends to do the trick, however this is in a production enviornment. I've been looking for a restart-on-failure script or inherent feature in Tomcat that can perform this. Please forward me information on how to monitor Tomcat for error conditions and restart the application. Thanks! Robert [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Restart-On-Failure for Tomcat?
hello, i also have the problem that my tomcat stops does not respond, and this more than once a day. i'm currently looking for the cause of the problem, so i wrote a monitoring script that collects the top-output, does a thread-dump on the tomcat-process and performs a `netstat -p -n`, and finally sends this information via email. configuration is hold by a configuration file, whereas these days i put more and more configuration into the script itself, so separation of concerns is broken :) you can place the script in /etc/init.d/ and register it via chkconfig, configurations are placed in the conf-file and in the top of the monitoring-script, you should adapt all to your needs. as i don't know if attachments are handled properly by this list, i put the script on my website, so you can find it here too: http://www.javakaffee.de/jspwiki/Wiki.jsp?page=ServerSideDevelopment i hope it's helpful, cheers, martin On Thu, 2005-02-10 at 12:12 -0800, Robert McIntosh wrote: Hi Paul, I hope you don't mind the direct e-mail. Would you mind sharing your wget script? Thanks, Robert On Sat, 05 Feb 2005 23:02:50 -0600, Paul [EMAIL PROTECTED] wrote: I would suggest either a process monitor or using cron to run script every minute or so that would use wget to get a test page and if it fails, restart tomcat. I've been using the latter of the two with good success for a while. Of course, I'm assuming your using Linux or the like, but if you're on Win then you can set the recovery options under services. I'm not aware of anything inherent in Tomcat. Regards, -Paul Robert McIntosh wrote: Hi, I'm supporting a web application running on Apache (2.0x) /Tomcat(5.0.x) w/ mod-jk. The web application seems to cause Tomcat (5.0.28) to fail on average once a week. Restarting tomcat tends to do the trick, however this is in a production enviornment. I've been looking for a restart-on-failure script or inherent feature in Tomcat that can perform this. Please forward me information on how to monitor Tomcat for error conditions and restart the application. Thanks! Robert [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Martin Grotzke Hohenesch 38, 22765 Hamburg Tel. +49 (0) 40.39905668 Mobil +49 (0) 170.9365656 E-Mail[EMAIL PROTECTED] Onlinehttp://www.javakaffee.de watchtomcat Description: application/shellscript # # The configuration file for watchtomcat # # $Id: watchtomcat.conf.baseserver.com 94 2004-03-18 21:15:38Z grotzke $ # # for curl checking #CHECK_URL=http://www.javakaffee.de/jspwiki/Wiki.jsp?page=Main; CHECK_URL=http://tomcat.baseserver.net; SEARCH_WORD=wordtosearchfor # for which word shall be searched in the CHECK_URL-document? EXPECTED_WC_L=3# how many lines are expected to be found with the given SEARCH_WORD? [EMAIL PROTECTED]# where to send notifications signature.asc Description: This is a digitally signed message part
Re: Restart-On-Failure for Tomcat?
On Thu, 2005-02-10 at 23:30 +0100, Martin Grotzke wrote: hello, i also have the problem that my tomcat stops does not respond, and this more than once a day. i'm currently looking for the cause of the problem, so i wrote a monitoring script that collects the top-output, does a thread-dump on the tomcat-process and performs a `netstat -p -n`, and finally sends this information via email. ha, i forgot to mention that it restarts tomcat, too ;) cheers, martin configuration is hold by a configuration file, whereas these days i put more and more configuration into the script itself, so separation of concerns is broken :) you can place the script in /etc/init.d/ and register it via chkconfig, configurations are placed in the conf-file and in the top of the monitoring-script, you should adapt all to your needs. as i don't know if attachments are handled properly by this list, i put the script on my website, so you can find it here too: http://www.javakaffee.de/jspwiki/Wiki.jsp?page=ServerSideDevelopment i hope it's helpful, cheers, martin On Thu, 2005-02-10 at 12:12 -0800, Robert McIntosh wrote: Hi Paul, I hope you don't mind the direct e-mail. Would you mind sharing your wget script? Thanks, Robert On Sat, 05 Feb 2005 23:02:50 -0600, Paul [EMAIL PROTECTED] wrote: I would suggest either a process monitor or using cron to run script every minute or so that would use wget to get a test page and if it fails, restart tomcat. I've been using the latter of the two with good success for a while. Of course, I'm assuming your using Linux or the like, but if you're on Win then you can set the recovery options under services. I'm not aware of anything inherent in Tomcat. Regards, -Paul Robert McIntosh wrote: Hi, I'm supporting a web application running on Apache (2.0x) /Tomcat(5.0.x) w/ mod-jk. The web application seems to cause Tomcat (5.0.28) to fail on average once a week. Restarting tomcat tends to do the trick, however this is in a production enviornment. I've been looking for a restart-on-failure script or inherent feature in Tomcat that can perform this. Please forward me information on how to monitor Tomcat for error conditions and restart the application. Thanks! Robert [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Martin Grotzke Hohenesch 38, 22765 Hamburg Tel. +49 (0) 40.39905668 Mobil +49 (0) 170.9365656 E-Mail[EMAIL PROTECTED] Onlinehttp://www.javakaffee.de signature.asc Description: This is a digitally signed message part
RE: Restart-On-Failure for Tomcat?
-Original Message- From: Trond G. Ziarkowski [mailto:[EMAIL PROTECTED] Sent: 07 February 2005 07:57 To: tomcat-user@jakarta.apache.org Subject: Re: Restart-On-Failure for Tomcat? Hi! Someone mentioned on this list a while ago that Java Service Wrapper is capable of doing this. Haven't tested it myself but you can check it out at http://wrapper.tanukisoftware.org/ Trond Alternatively, you might consider writing a persistent jini wrapper around tomcat. This would also allow you to autodiscover tomcat instances, and be alerted on state changes etc. It would be a bit of coding though James - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Restart-On-Failure for Tomcat?
Hi! Someone mentioned on this list a while ago that Java Service Wrapper is capable of doing this. Haven't tested it myself but you can check it out at http://wrapper.tanukisoftware.org/ Trond Robert McIntosh wrote: Hi, I'm supporting a web application running on Apache (2.0x) /Tomcat(5.0.x) w/ mod-jk. The web application seems to cause Tomcat (5.0.28) to fail on average once a week. Restarting tomcat tends to do the trick, however this is in a production enviornment. I've been looking for a restart-on-failure script or inherent feature in Tomcat that can perform this. Please forward me information on how to monitor Tomcat for error conditions and restart the application. Thanks! Robert [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Restart-On-Failure for Tomcat?
Hi, I'm supporting a web application running on Apache (2.0x) /Tomcat(5.0.x) w/ mod-jk. The web application seems to cause Tomcat (5.0.28) to fail on average once a week. Restarting tomcat tends to do the trick, however this is in a production enviornment. I've been looking for a restart-on-failure script or inherent feature in Tomcat that can perform this. Please forward me information on how to monitor Tomcat for error conditions and restart the application. Thanks! Robert [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Restart-On-Failure for Tomcat?
I would suggest either a process monitor or using cron to run script every minute or so that would use wget to get a test page and if it fails, restart tomcat. I've been using the latter of the two with good success for a while. Of course, I'm assuming your using Linux or the like, but if you're on Win then you can set the recovery options under services. I'm not aware of anything inherent in Tomcat. Regards, -Paul Robert McIntosh wrote: Hi, I'm supporting a web application running on Apache (2.0x) /Tomcat(5.0.x) w/ mod-jk. The web application seems to cause Tomcat (5.0.28) to fail on average once a week. Restarting tomcat tends to do the trick, however this is in a production enviornment. I've been looking for a restart-on-failure script or inherent feature in Tomcat that can perform this. Please forward me information on how to monitor Tomcat for error conditions and restart the application. Thanks! Robert [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
