On 19/12/2018 20:22, Louis Zipes wrote: > Just to confirm, the relevant thread dump will have this type of header and I > want to get it while the Tomcat is attempting to stop? > > 2018-12-18 08:33:58 Full thread dump Java HotSpot(TM) 64-Bit Server VM > (24.80-b11 mixed mode):
Exactly. Then look for the thread that is still processing a JSP and figure out why it is taking so long. Mark > > > -----Original Message----- > From: Mark Thomas [mailto:ma...@apache.org] > Sent: Wednesday, December 19, 2018 2:55 PM > To: users@tomcat.apache.org > Subject: Re: Windows Service not stopping Tomcat 8.5.35 but only if it has > been active for more than a day > > - - - external message, proceed with caution - - - > > > On 19/12/2018 19:44, Louis Zipes wrote: >> >> First of all, congratulations to Woonsan on his achievement! >> >> My issue is that I'm running Tomcat 8.5.35/JDK 1.7 on Windows 2012 and I'm >> stopping and starting it using Windows Service. I have no problems starting >> the Tomcat service and I also have no problems stopping the Tomcat service >> IF I stop it that day. However, if I leave it running for more than a day >> then I can't stop it (it goes into Stopping mode and then eventually times >> out). I realize that there are manual ways to kill it then but of course I >> want to figure out the cause of it. Note that since this is a lower >> environment, I don't have a lot of background jobs running and when I look >> at the Jconsole it doesn't look that 'bad'. This was not a problem when I'm >> running the application using Tomcat 7 on the same machine. Obviously, I >> had to adopt the service.bat and server.xml files to use in Tomcat 8 so >> maybe I accidently deleted a key parameter but really, in the service.bat I >> just used the Xmx parameter from Tomcat and in server.xml >> >> I know about thread dumps but some of those are 4 gig in size and hard to >> analyze. What I'm looking for from the experts here is the order of >> troubleshooting operations and logs. > > 4GB sounds like a heap dump. > > You want a thread dump. > >> For example, I have the Tomcat logs and one log shows this: >> >> 19-Dec-2018 13:36:43.521 INFO [Thread-13] >> org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler >> ["ajp-nio-8009"] >> 19-Dec-2018 13:36:43.549 INFO [Thread-13] >> org.apache.catalina.core.StandardService.stopInternal Stopping service >> [Catalina] >> 19-Dec-2018 13:36:43.612 INFO [localhost-startStop-2] >> org.apache.catalina.core.StandardWrapper.unload Waiting for [1] instance(s) >> to be deallocated for Servlet [jsp] >> 19-Dec-2018 13:36:44.705 INFO [localhost-startStop-2] >> org.apache.catalina.core.StandardWrapper.unload Waiting for [1] instance(s) >> to be deallocated for Servlet [jsp] >> 19-Dec-2018 13:36:45.799 INFO [localhost-startStop-2] >> org.apache.catalina.core.StandardWrapper.unload Waiting for [1] instance(s) >> to be deallocated for Servlet [jsp] >> >> Is this a real error message that is pointing to an issue. > > Yes. It looks like you have a long running JSP that hasn't stopped. A > thread dump is what you need here. You should be able to generate one by > right-clicking on the Tomcat Manager icon in the task bar. The dump > should be in one of the log files. > >> Basically, what would be the order of operations to try to troubleshoot this >> issue? Do I stay within Tomcat, do I look to the Windows machine itself, do >> I look to the JDK to see if there is problem? > > Start at a thread dump. > > Mark > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > --------------------------------------- > CONFIDENTIALITY NOTICE: This message is for intended addressee(s) only and > may contain information that is confidential, proprietary or exempt from > disclosure. If you are not the intended recipient, please contact the sender > immediately. Unauthorized use or distribution is prohibited and may be > unlawful. > > --------------------------------------------------------------------- > 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
