Configuring exception destination processing for a link to a foreign bus
You can configure the exception destination processing for a link from a service integration bus to another service integration bus or to a IBM MQ network. You can configure whether any undeliverable messages that the link handles are rerouted to an exception destination, and whether to use a system default exception destination or configure a specific exception destination.
Before you begin
To configure a specific exception destination for the link, the exception destination must exist. An exception destination must be a queue destination, and can be on the local bus or a foreign bus. See Creating a queue for point-to-point messaging.
About this task
An exception destination for a link is the destination for an inbound message when the service integration bus link or IBM MQ link cannot deliver the message to its target bus destination, or to the exception destination that is configured for that target destination, or when the target destination does not exist.
- None. The link does not use an exception destination and undeliverable messages are not rerouted to an exception destination. For a service integration bus link, such messages can block the processing of other messages waiting for delivery to the same destination. For a IBM MQ link, such messages can block the processing of other messages waiting for delivery through that link to the same bus.
- System. The link uses the default exception destination. Messages that cannot be delivered to the bus destination are rerouted to the system default exception destination for the messaging engine that this link is assigned to: _SYSTEM.Exception.Destination.messaging_engine_name. This is the default option.
- Specify. The link uses the specified exception destination. If the link cannot use this exception destination, it uses the system exception destination.
Note that best-effort messages are always discarded if they cannot be delivered to their target destination, that is, they never use an exception destination.
Any report options that are set in the properties of a message also affect exception destination processing. Depending on the report options, a message might be discarded if it is not delivered.