5.4 Locking the J2EE application service

This subsection describes the locking of the Web application service and the locking of the CTM schedule queue.

The following table describes the organization of this section:

Table 5‒16: Organization of this section (Locking the J2EE application service)

Category	Title	Reference
Description	Locking the Web application service and releasing the lock	5.4.1
Operations	Methods of locking a service and stopping a J2EE application that can be executed for each system	5.4.2
	Service lock using a load balancer	5.4.3

A service implies the business provided by the J2EE application. You can lock the services by returning an error for the new request and by not returning an error and continuing the process for a request that is being executed.

Organization of this section

• 5.4.1 Locking the Web Application Service and Releasing the Lock

• 5.4.2 Methods of locking a service and stopping a J2EE application that can be executed for each system

• 5.4.3 Service Lock Using a Load Balancer

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