This topic applies only on the z/OS operating system.

Performance considerations for WebSphere Application Server Version 5 queue destinations

To optimize performance, configure the queue destination properties to best fit your applications. For example, setting the Expiry property to SPECIFIED and the Specified Expiry property to 30000 milliseconds for the expiry timeout, reduces the number of messages that can be queued.

To ensure that there are enough underlying WebSphere MQ resources available for the queue, you must ensure that you configure the queue destination properties adequately for your application usage.

For queue destinations configured on a WebSphere Application Server Version 5 node, you should also consider queue attributes of the internal JMS server that are associated with the queue name. Inappropriate queue attributes can reduce the performance of WebSphere operations.
BOQNAME
The excessive backout requeue name. This can be set to a local queue name that can hold the messages which were rolled back by the WebSphere applications. This queue name can be a system dead letter queue.
BOTHRESH
The backout threshold and can be set to a number once the threshold is reached, the message will be moved to the queue name specified in BOQNAME.
For more information about using these properties, see:



Related tasks
Configuring a Version 5 WebSphere queue destination
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