Configure timer managers

A timer manager acts as a thread pool for application components that use asynchronous beans. Use the administrative console to configure timer managers. The timer manager service is enabled by default. If you are not familiar with timer managers, review the conceptual section, Timer managers, in the Asynchronous beans topic.

Overview

Note: The timer manager service is only supported from within the Enterprise Java Beans (EJB) container or Web container. Looking up and using a configured timer manager from a J2EE application client container is not supported.

Procedure

1. Start the administrative console.

2. Select Resources > Asynchronous beans > Timer managers.

3. Specify a Scope value and click New.

4. Specify the following required properties:

   Scope

   The scope of the configured resource. This value indicates the location for the configuration file.

   Name

   The display name for the timer manager.

   JNDI Name

   The Java Naming and Directory Interface (JNDI) name for the timer manager. This name is used by asynchronous beans that need to look up the timer manager. Each timer manager must have a unique JNDI name within the cell.

   Number of Timer Threads

   The maximum number of threads that are used for timers.

5. [Optional] Specify a Description and a Category for the timer manager.

6. [Optional] Select the Service Names (J2EE contexts) on which you want this timer manager to be made available. Any asynchronous beans that use this timer manager then inherit the selected J2EE contexts from the component that creates the bean. The list of selected services also is known as the "sticky" context policy for the timer manager. Selecting more services than are actually required might impede performance.

7. Save your configuration.

Results