Network Deployment (Distributed operating systems), v8.0 > Reference > Sets
WebSphere MQ messaging provider activation specification broker properties
Use this panel to view or change the broker settings of the selected activation specification for use with the WebSphere MQ messaging provider. These broker settings determine how the WebSphere MQ messaging provider interacts with a broker for the purposes of publishing messages and subscribing to topics. Updates to the settings take effect when the server is restarted.
To view WebSphere MQ activation specification broker properties, use the administrative console...
- In the navigation pane, click Resources > JMS ->Activation specifications to display existing activation specifications.
- If appropriate, in the content pane, change the Scope setting to the level at which the activation specifications are defined. This restricts the set of activation specifications displayed.
- Select the name of the activation specification that you want to work with.
- In the content pane under Additional properties, click Broker properties to view a list of the broker properties of the WebSphere MQ activation specification.
Under General Properties there are four groups of properties:
- Queues
- Capabilities
- Tune
- Additional
Make any required changes to these groups and then click Apply to return to the activation specification.
When specifying WebSphere MQ properties, the following restrictions apply:
- Names can have a maximum of 48 characters, with the exception of channels, which have a maximum of 20 characters.
- The property values that you specify must match the values specified when configuring WebSphere MQ for JMS resources. For more information about configuring WebSphere MQ for JMS resources, see the WebSphere MQ Use Java section of the WebSphere MQ library.
A WebSphere MQ activation specification has the following broker properties.
Broker control queue
The queue to which broker control messages are sent.
Information Value Data type String Default SYSTEM.BROKER.CONTROL.QUEUE
Broker subscriber queue
The queue from which subscription messages are received.
Information Value Data type String Default SYSTEM.JMS.ND.SUBSCRIBER.QUEUE
Broker connection consumer subscription queue
The queue to receive subscription messages for connection consumers from.
Information Value Data type String Default SYSTEM.JMS.ND.CC.SUBSCRIBER.QUEUE
Broker connection consumer durable subscription queue
The queue to receive subscription messages for durable connection consumers from.
Information Value Data type String Default SYSTEM.JMS.D.CC.SUBSCRIBER.QUEUE
Version
The version of the broker used. This determines some of the capabilities that the broker is assumed to have. For example, whether to use an RFH version 1 or version 2 header in publications.
Information Value Data type Radio button Default Version 1 broker Range
Version 1 broker
Message selection cannot be specified.
Version 2 broker
Message selection can be specified. If you select this option, also complete Specify where message selection occurs.
Specify where message selection occurs
The process in which message selection is performed. This property is enabled only if v2 broker was selected.
Information Value Data type Drop-down list Default CLIENT Range
CLIENT
Message selection is performed in the application server process.
BROKER
Message selection is performed in the broker process.
Subscription store
The process for tracking subscriptions.
Information Value Data type Drop-down list Default MIGRATE Range
MIGRATE
Any information that is held on queues is migrated to the broker mechanism for persisting subscription information. If subscription information is already persisted using the broker mechanism then specifying a value of Migrate is equivalent to specifying a value of Broker.
BROKER
Internal broker mechanisms are used to track subscription information.
QUEUE
A designated WebSphere MQ queue is used to record information about current subscriptions.
Durable subscription state refresh interval
How often a long running transaction is recreated and used to clean up durable subscriptions, for some versions of the queue manager.
Information Value Data type Integer Default 60000 Range Any positive integer
Subscription cleanup level
How aggressively messages are cleaned up if the subscriber that is expected to consume the messages terminates unexpectedly.
Information Value Data type Drop-down list Default SAFE Range
SAFE
A conservative algorithm is used to clean up subscriptions.
ASPROP
The cleanup algorithm is determined by a system property.
NONE
No cleanup of subscriptions is performed.
STRONG
An aggressive algorithm is used to clean up subscriptions.
Subscription cleanup interval
How often to check for orphaned subscriptions and clean up messages.
Information Value Data type Integer Default 3600000 Range Any positive integer
Subscription wildcard format
The wildcard format used for subscribing to more than one topic in a topic hierarchy.
Information Value Data type Drop-down list Default character wildcards Range
character wildcards
We can use an asterisk (*) or question mark (?) to represent characters, or strings of characters, in a topic name.
* is interpreted as matching many characters.
? is interpreted as matching a single character.
topic level wildcards
We can use a plus sign (+) or number sign (#) to represent topics in a multilevel topic hierarchy.
+ is interpreted as matching a single topic name.
# is interpreted as matching many topics in the hierarchy. / is used to delimit topics.
Optimize for sparse subscription patterns
An option to specify whether this activation specification is anticipated to receive a high proportion of messages that match its selection criteria. This information can be used to optimize message delivery.
Information Value Data type Check box Default Cleared Range
Cleared
Subscriptions frequently receive matching messages.
Selected
Subscriptions do not frequently receive matching messages.
Broker queue manager
The name of the queue manager that is running the broker, if it is not the same as the queue manager to which the activation specification connects.
Information Value Data type String Default The queue manager name that was specified in the activation specification.
Configure an activation specification for the WebSphere MQ messaging provider
Related
Map of administrative console panel names to command names and WebSphere MQ names
WebSphere MQ messaging provider activation specification settings