SNMP Agent MIB Reference
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tuxTAppQDefDeliveryPolicy
Syntax
INTEGER { persist(1), non-persist(2) }
Access
Description
This object specifies the default delivery policy for the queue when no delivery mode is specified for a message enqueued to the queue. When the value is "persist," messages enqueued to the queue without an explicitly specified delivery mode are delivered using the persistent (disk-based) delivery method. When the value is non-persist, messages enqueued to the queue without an explicitly specified delivery method are delivered using the non-persistent (in memory) delivery method. When a queue's default delivery policy is modified, the delivery quality of service of messages that are in the queue before the modification are not changed. If the queue being modified is the reply queue named for any messages currently in the queue space, the reply quality of service is not changed for those messages as a result of changing the default delivery policy of the queue.
For non-persistent delivery, if the memory area is exhausted or fragmented so that a message cannot be enqueued, the enqueuing operation fails, even if there is sufficient persistent storage for the message. Similarly, if the persistent storage area is exhausted or fragmented so that a message cannot be enqueued, the enqueuing operation fails, even if there is sufficient non-persistent storage for the message. If the tuxTQspaceMemNonPersist object of the tuxTQspaceTbl group is zero (0) for a queue space, no space is reserved for non -persistent messages. In such a case, any attempt to enqueue a non-persistent message fails. This type of failure results, for example, when no delivery quality of service has been specified for a message and the tuxTAppQDefDeliveryPolicy object for the target queue has been set to "non-persist."
