S Arvind wrote: > Pid very thanks for guiding me .. one more help alone... can u please tell > me how to check which thread it is runnin by quartz other then checking code > ... i am centos, jvm 5, tomcat 5 and tomcat 6.. i think i am disturbin u > lot, but ...
As Dan said, "kill -QUIT <pid>", and as I said previously, familiarise yourself with jstack, jmap and possibly jconsole, all of which are command line tools available with the Sun JREs. p > -Arvind S > > * > "Many of lifes failure are people who did not realize how close they were to > success when they gave up." > -Thomas Edison* > > > On Mon, Apr 27, 2009 at 7:18 PM, Pid <p...@pidster.com> wrote: > >> S Arvind wrote: >>> Is the application completely unchanged for deployment on Tomcat 6? >>>>> yes it is completely *unchanged*... is anything must be changed for >>> quartz? >> okay, then your best bet is to explore what the JVM is doing after >> shutdown and check which threads are still running. >> >> p >> >> >> >>> --Arvind S >>> >>> * >>> "Many of lifes failure are people who did not realize how close they were >> to >>> success when they gave up." >>> -Thomas Edison >>> * >>> >>> On Sat, Apr 25, 2009 at 5:06 PM, Pid <p...@pidster.com> wrote: >>> >>>> Please do not keep using "reply to all". It is annoying and >>>> unnecessary. I will obviously receive a copy of the mail if you just >>>> send a reply to the list. >>>> >>>>> Did you write your application? >>>>>>> there are team of 200 Engineers wrote that application so i dont know >>>>> where the problem is >>>>> Are you using Quartz in your application? >>>>>>> yeah we have quartz scheduler in our application. But when we run in >>>>> Tomcat 5 we dont have this kind of problem >>>> Is the application completely unchanged for deployment on Tomcat 6? >>>> >>>> When you shutdown, Quartz will log a message describing the number of >>>> running threads, this may help diagnose the problem. The count may be >>>> above 20, but that isn't necessarily a bad thing. >>>> >>>> >>>>> Are you starting new Threads in your app? >>>>>>> Might be, i have to ask each team. >>>> Check that they are being properly terminated. Even if the devs promise >>>> they are, double check. >>>> >>>>> When you have started and stopped the application a few times are there >>>>> still multiple java processes running? >>>>>>> YES, this is the only thing assigned to me to correct it. >>>> You should ensure that the old processes are terminated before starting >>>> new ones, as an old one may hang onto one of the ports that Tomcat uses, >>>> thus preventing new instances from starting up. >>>> >>>> The Linux "kill" command can do this. >>>> >>>> >>>> However... >>>> >>>> After shutdown has been requested and while the process is still >>>> running, take a thread dump, or use the java tools to examine the state >>>> of the JVM. See if you can spot which Threads are still running. >>>> >>>> Try jmap, jstack and jconsole (if you're on a local machine). >>>> >>>> >>>> p >>>> >>>> >>>> >>>> >>>>> *"Many of lifes failure are people who did not realize how close they >>>> were >>>>> to success when they gave up." >>>>> -Thomas Edison >>>>> * >>>>> >>>>> On Sat, Apr 25, 2009 at 2:21 PM, Pid <p...@pidster.com> wrote: >>>>> >>>>>> S Arvind wrote: >>>>>>> Thanks pid... >>>>>>> >>>>>>> Can u able to give me more idea to solve it if possible.. >>>>>> Did you write your application? >>>>>> >>>>>> Are you using Quartz in your application? >>>>>> >>>>>> Are you starting new Threads in your app? >>>>>> >>>>>> When you have started and stopped the application a few times are >> there >>>>>> still multiple java processes running? >>>>>> >>>>>> >>>>>> p >>>>>> >>>>>> >>>>>>> Thanks, >>>>>>> Arvind S >>>>>>> >>>>>>> >>>>>>> *"Many of lifes failure are people who did not realize how close they >>>>>> were >>>>>>> to success when they gave up." >>>>>>> -Thomas Edison >>>>>>> * >>>>>>> >>>>>>> On Sat, Apr 25, 2009 at 2:00 PM, Pid <p...@pidster.com> wrote: >>>>>>> >>>>>>>> S Arvind wrote: >>>>>>>>> A wierd problem occur while shutdowning the tomcat 6 in the Fedora >>>> and >>>>>>>>> Centos. Usually i use shell file to shutdown. After shutting down >>>> when >>>>>>>> see >>>>>>>>> the postgre preocess by [code]*ps -ef | grep java*[/code] it is >>>> still >>>>>>>> showing >>>>>>>>> the process as running. >>>>>>>>> >>>>>>>>> such as >>>>>>>>> >>>>>>>>> [code] tomcat 14694 1 72 Apr23 ? 23:44:25 >>>>>>>>> /usr/java/jdk1.5.0_13/jre/bin/java >>>>>>>>> -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager >>>>>>>>> >> -Djava.util.logging.config.file=/usr/share/tomcat6/apache-tomcat-6.0.18/conf/logging.properties >>>>>>>>> -verbose:gc -Xloggc:gc.log -XX:+PrintGCDetails -XX:MaxPermSize=512M >>>>>>>>> -Xms1024M -Xmx1024M -Djava.awt.headless=true >>>>>>>>> >> -Djava.endorsed.dirs=/usr/share/tomcat6/apache-tomcat-6.0.18/endorsed >>>>>>>>> -classpath >> :/usr/share/tomcat6/apache-tomcat-6.0.18/bin/bootstrap.jar >>>>>>>>> -Dcatalina.base=/usr/share/tomcat6/apache-tomcat-6.0.18 >>>>>>>>> -Dcatalina.home=/usr/share/tomcat6/apache-tomcat-6.0.18 >>>>>>>>> -Djava.io.tmpdir=/usr/share/tomcat6/apache-tomcat-6.0.18/temp >>>>>>>>> org.apache.catalina.startup.Bootstrap start [/code] >>>>>>>>> >>>>>>>>> So if i keep repeating the start and shutdown after few cycles it >> is >>>>>>>>> completely refusing to start. What might be the source or reason of >>>>>> this >>>>>>>>> problem? Advance Thanks, >>>>>>>> If you are leaving an active process behind when you stop the >> server, >>>>>>>> then doing it lots of times over isn't going to be healthy. >>>>>>>> >>>>>>>> Usually this is because your application has left non-daemon threads >>>>>>>> running that haven't been shutdown. It was was recently pointed out >>>> (on >>>>>>>> this list) that the Quartz job scheduler is often a culprit in this >>>>>> regard. >>>>>>>> If you have are starting threads yourself, then you need to make >> sure >>>>>>>> that you properly terminate them when the application (and server) >>>> shuts >>>>>>>> down. >>>>>>>> >>>>>>>> A ServletContextListener is useful in this regard. >>>>>>>> >>>>>>>> >>>>>>>> p >>>>>>>> >>>>>>>> >>>>>>>>> Arvind S >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> * >>>>>>>>> "Many of lifes failure are people who did not realize how close >> they >>>>>> were >>>>>>>> to >>>>>>>>> success when they gave up." >>>>>>>>> -Thomas Edison* >>>>>>>>> >> --------------------------------------------------------------------- >>>>>>>> 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 >>>>>> >>>>>> >>>> --------------------------------------------------------------------- >>>> 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 >> >> > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
