Dear OM Community,
While shutting down OM5-Tomcat via shutdown.sh, Tomcat is not shutting down. These links state some method in Webapp could be preventing the shutdown process of Tomcat: https://stackoverflow.com/questions/18340873/why-tomcat-will-not-bind-to-shu tdown-port-8005 https://stackoverflow.com/questions/2217382/tomcat6-shutdown-port-not-listen ing?noredirect=1 <https://stackoverflow.com/questions/2217382/tomcat6-shutdown-port-not-liste ning?noredirect=1&lq=1> &lq=1 Could anyone provide any guidance what we need to modify in OM5 code or any other place to properly shutdown Tomcat? Here is the log snippet. There are several more such errors while shutting down. ------------------------------ 21-Nov-2019 23:24:29.843 INFO [main] org.apache.catalina.core.StandardServer.await A valid shutdown command was received via the shutdown port. Stopping the Server instance. 21-Nov-2019 23:24:29.844 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["http-nio-5080"] 21-Nov-2019 23:24:29.850 INFO [main] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8009"] 21-Nov-2019 23:24:29.856 INFO [main] org.apache.catalina.core.StandardService.stopInternal Stopping service [Catalina] [34mINFO [0;39m 11-21 23:24:29.884 [36mo.a.w.Application:539 [main][0;39m - [OpenmeetingsApplication] destroy: Wicket jQuery UI initializer [34mINFO [0;39m 11-21 23:24:29.885 [36mo.a.w.Application:539 [main][0;39m - [OpenmeetingsApplication] destroy: Wicket extensions initializer [34mINFO [0;39m 11-21 23:24:29.885 [36mo.a.w.Application:539 [main][0;39m - [OpenmeetingsApplication] destroy: Wicket Kendo UI initializer [34mINFO [0;39m 11-21 23:24:29.885 [36mo.a.w.Application:539 [main][0;39m - [OpenmeetingsApplication] destroy: Wicket core library initializer [34mINFO [0;39m 11-21 23:24:29.885 [36mo.a.w.Application:539 [main][0;39m - [OpenmeetingsApplication] destroy: DevUtils DebugBar Initializer [34mINFO [0;39m 11-21 23:24:29.885 [36mo.a.w.Application:539 [main][0;39m - [OpenmeetingsApplication] destroy: org.wicketstuff.dashboard.DashboardContextInitializer@72690a1 [34mINFO [0;39m 11-21 23:24:29.885 [36mo.a.w.Application:539 [main][0;39m - [OpenmeetingsApplication] destroy: Wicket jQuery UI initializer (plugins) [34mINFO [0;39m 11-21 23:24:29.885 [36mo.a.w.Application:539 [main][0;39m - [OpenmeetingsApplication] destroy: Wicket Kendo UI initializer (theme-default) 21-Nov-2019 23:24:29.886 INFO [main] com.hazelcast.core.LifecycleService.null [172.17.0.1]:5701 [dev] [3.12] [172.17.0.1]:5701 is SHUTTING_DOWN 21-Nov-2019 23:24:29.891 INFO [hz.server-1.cached.thread-2] com.hazelcast.internal.partition.impl.MigrationManager.null [172.17.0.1]:5701 [dev] [3.12] Shutdown request of Member [172.17.0.1]:5701 - 799babea-5e78-4cf9-a099-f4b1fb09b9c9 this is handled 21-Nov-2019 23:24:29.965 INFO [main] com.hazelcast.instance.Node.null [172.17.0.1]:5701 [dev] [3.12] Shutting down connection manager... 21-Nov-2019 23:24:29.965 INFO [main] com.hazelcast.instance.Node.null [172.17.0.1]:5701 [dev] [3.12] Shutting down node engine... 21-Nov-2019 23:24:29.979 INFO [main] com.hazelcast.instance.NodeExtension.null [172.17.0.1]:5701 [dev] [3.12] Destroying node NodeExtension. 21-Nov-2019 23:24:29.980 INFO [main] com.hazelcast.instance.Node.null [172.17.0.1]:5701 [dev] [3.12] Hazelcast Shutdown is completed in 90 ms. 21-Nov-2019 23:24:29.980 INFO [main] com.hazelcast.core.LifecycleService.null [172.17.0.1]:5701 [dev] [3.12] [172.17.0.1]:5701 is SHUTDOWN 21-Nov-2019 23:24:30.023 WARNING [main] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [Openmeetings] registered the JDBC driver [com.mysql.cj.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 21-Nov-2019 23:24:30.024 WARNING [main] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [Openmeetings] appears to have started a thread named [nioEventLoopGroup-2-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: java.base@11/java.lang.Thread.sleep(Native Method) io.netty.util.concurrent.SingleThreadEventExecutor.confirmShutdown(SingleThr eadEventExecutor.java:719) io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:505) io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventEx ecutor.java:905) io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable .java:30) java.base@11/java.lang.Thread.run(Thread.java:834) 21-Nov-2019 23:24:30.025 WARNING [main] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [Openmeetings] appears to have started a thread named [org.springframework.scheduling.quartz.SchedulerFactoryBean#0_Worker-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: java.base@11/java.lang.Object.wait(Native Method) org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:555 ) Thank you. Sincerely, Hemant K. 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