This app demonstrates graceful shutdown of an app running in Cloud Foundry.
Build the app with the following command:
$ ./gradlew assemble
Then push to Cloud Foundry with the included manifest.yml.
When the application container is shut down, a shutdown hook in the app will count down from 9 seconds and then allow the app to exit. Log output like the following will be written, along with Tomcat's shutdown logging:
2014-08-14 20:44:02.037 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Initiating graceful shutdown
2014-08-14 20:44:02.037 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Shutting down in 9 seconds
14-Aug-2014 20:44:02.081 INFO [Thread-6] org.apache.coyote.AbstractProtocol.pause Pausing ProtocolHandler ["ajp-nio-8009"]
14-Aug-2014 20:44:02.133 INFO [Thread-6] org.apache.catalina.core.StandardService.stopInternal Stopping service Catalina
14-Aug-2014 20:44:02.180 INFO [Thread-6] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-8080"]
14-Aug-2014 20:44:02.181 INFO [Thread-6] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["ajp-nio-8009"]
14-Aug-2014 20:44:02.182 INFO [Thread-6] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-8080"]
14-Aug-2014 20:44:02.182 INFO [Thread-6] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["ajp-nio-8009"]
2014-08-14 20:44:03.039 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Shutting down in 8 seconds
2014-08-14 20:44:04.040 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Shutting down in 7 seconds
2014-08-14 20:44:05.041 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Shutting down in 6 seconds
2014-08-14 20:44:06.042 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Shutting down in 5 seconds
2014-08-14 20:44:07.043 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Shutting down in 4 seconds
2014-08-14 20:44:08.045 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Shutting down in 3 seconds
2014-08-14 20:44:09.046 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Shutting down in 2 seconds
2014-08-14 20:44:10.048 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Shutting down in 1 seconds
2014-08-14 20:44:11.050 INFO 7816 --- [ Thread-5] o.c.s.shutdown.web.LifecycleComponent : Shutting down now