Network Deployment (Distributed operating systems), v8.0 > Administer applications and their environment > Administer Service integration > Administer bus destinations


Administer durable subscriptions

Use the following tasks to display the durable subscriptions that exist, to enable a subscription to be changed, or to delete a subscription.

The default messaging provider supports the use of durable subscriptions to topics. This enables a subscriber to receive a copy of all messages published to a topic, even messages published during periods of time when the subscriber is not connected to the server.

If an application creates a durable subscription, it is added to the list that administrators can display and act upon by . Each durable subscription is created with a unique subscription identifier, clientID##subName where:

clientID

The client identifier used to associate a connection and its objects with the messages maintained for applications (as clients of the JMS provider). You should use a naming convention that helps you identify the applications, in case we have to relate durable subscriptions to the associated applications for runtime administration. For more information about client identifiers, see section 4.3.2 of the JMS 1.1 specification.

subName

The JMS durable subscription name used to uniquely identify a durable subscription within a given client identifier. For more information about JMS durable subscription names, see section 6.11.1 of the JMS 1.1 specification.

For durable subscriptions created by message-driven beans, the subscription name is set on the JMS activation specification. For other durable subscriptions, the value is set by the administrator on the JMS connection factory and by the JMS application on the createDurableSubscriber operation.

The server_name

durableSubscriptions.ser file in the WAS_HOME/temp directory is used by the messaging service to keep track of durable subscriptions for message-driven beans. If you uninstall an application that contains a message-driven bean, this file is used to unsubscribe the durable subscription. If we have to delete the WAS_HOME/temp directory or other files in it, ensure that you preserve this file.


Procedure


The consequences of changing durable subscriptions
Configure shared durable subscriptions for a connection factory
Configure shared durable subscriptions for an activation specification


Related


Topic names and use of wildcard characters in topic expressions
Known remote subscription points [Collection]
Known remote subscription points [Settings]
Subscriptions [Collection]
Subscriptions [Settings]