5.2.2 Stopping a J2EE application
For a J2EE application that provides services to a client only for a specific time in a day, you need to stop the J2EE application every day at a fixed time and restart it on the following day. Further, when maintaining services that are continuously operated for 24 hours, you need to determine the operations that can provide continuous services by stopping only some operations instead of stopping all J2EE applications at the same time. When stopping a J2EE application, the method of first stopping the receipt of requests, processing the requests that are already received and then stopping the J2EE application is called service lock. When you stop a J2EE application during daily operations, you can stop the services safely by executing an appropriate service lock. The way of service lock that you can execute differs based on the configuration of J2EE applications and the system configuration.