AW: Tomcat 7.0.2: Cannot stop thread started by web application
You're right. The threads are being shutdown asynchronously. Thanks, Stephan -Ursprüngliche Nachricht- Von: Mark Thomas [mailto:ma...@apache.org] Gesendet: Mittwoch, 15. Dezember 2010 17:16 An: Tomcat Users List Betreff: Re: Tomcat 7.0.2: Cannot stop thread started by web application On 15/12/2010 15:41, "Näcker, Stephan (UIT)" wrote: > Hey there, > > I 'm working on the following log file output: > > 15.12.2010 15:37:51 org.apache.catalina.loader.WebappClassLoader > clearReferencesThreads > SCHWERWIEGEND: The web application [/phoenix-webapp] appears to have started > a thread named [Replication Thread] but has failed to stop it. This is very > likely to create a memory leak. > 15.12.2010 15:37:51 org.apache.catalina.loader.WebappClassLoader > clearReferencesThreads > SCHWERWIEGEND: The web application [/phoenix-webapp] appears to have started > a thread named [Replication Thread] but has failed to stop it. This is very > likely to create a memory leak. > > These are threads started by the EHCache cache manager. When undeploying the > web application, Tomcat fails to stop it. > > I implemented a web application predestroy listener, which is called while > undeployment and shuts down the cache. When monitoring the threads, JConsole > tells me that there are no replication threads left running. > > So, I 'm wondering if there is a serious problem leading to memory leaks? Or > does Tomcat stops the threads? Or does Tomcat collect running threads > information while EHCache has not yet finished shutting down? Has anyone any > idea? Sounds like the threads are being shutdown asynchronously. Tomcat triggers the ServletContextListeners before checking for leaks. If that is the case you should be fine but in your shoes I'd want to confirm that that is the case. Mark - 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
Re: Tomcat 7.0.2: Cannot stop thread started by web application
On 15/12/2010 15:41, "Näcker, Stephan (UIT)" wrote: > Hey there, > > I 'm working on the following log file output: > > 15.12.2010 15:37:51 org.apache.catalina.loader.WebappClassLoader > clearReferencesThreads > SCHWERWIEGEND: The web application [/phoenix-webapp] appears to have started > a thread named [Replication Thread] but has failed to stop it. This is very > likely to create a memory leak. > 15.12.2010 15:37:51 org.apache.catalina.loader.WebappClassLoader > clearReferencesThreads > SCHWERWIEGEND: The web application [/phoenix-webapp] appears to have started > a thread named [Replication Thread] but has failed to stop it. This is very > likely to create a memory leak. > > These are threads started by the EHCache cache manager. When undeploying the > web application, Tomcat fails to stop it. > > I implemented a web application predestroy listener, which is called while > undeployment and shuts down the cache. When monitoring the threads, JConsole > tells me that there are no replication threads left running. > > So, I 'm wondering if there is a serious problem leading to memory leaks? Or > does Tomcat stops the threads? Or does Tomcat collect running threads > information while EHCache has not yet finished shutting down? Has anyone any > idea? Sounds like the threads are being shutdown asynchronously. Tomcat triggers the ServletContextListeners before checking for leaks. If that is the case you should be fine but in your shoes I'd want to confirm that that is the case. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Tomcat 7.0.2: Cannot stop thread started by web application
Hey there, I 'm working on the following log file output: 15.12.2010 15:37:51 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SCHWERWIEGEND: The web application [/phoenix-webapp] appears to have started a thread named [Replication Thread] but has failed to stop it. This is very likely to create a memory leak. 15.12.2010 15:37:51 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SCHWERWIEGEND: The web application [/phoenix-webapp] appears to have started a thread named [Replication Thread] but has failed to stop it. This is very likely to create a memory leak. These are threads started by the EHCache cache manager. When undeploying the web application, Tomcat fails to stop it. I implemented a web application predestroy listener, which is called while undeployment and shuts down the cache. When monitoring the threads, JConsole tells me that there are no replication threads left running. So, I 'm wondering if there is a serious problem leading to memory leaks? Or does Tomcat stops the threads? Or does Tomcat collect running threads information while EHCache has not yet finished shutting down? Has anyone any idea? Stephan
