What is Intercommunication?
- Sending messages from one queue manager to another queue manager is known as
inter communication
- The receiving queue manager may by on the same machine or another.
- It could be executing on the platform where the local queue manager exists
- It could be executing on another platform supported by Web Sphere MQ
- The participating entities are
o Message channels, message channel agents
o Transmission queues, channel initiators and listeners
o Programs those are co-existing
What is Transmission Queue?
- Transmission queues store messages which are destined for a specific remote
queue manager
- At least one transmission queue must be defined for each remote queue manger
- The messages are directly be sent to the remote queue manager
What is Initiation Queues?
- Initiation queues are used for triggering
- A trigger message is put by a queue manager on an initiation queue when a
trigger is occurred
- Logical combinations are part of a trigger event which is detected by the
queue manager
What is Dead Letter Queue?
- When a queue is not delivered to their correct destinations, then it is called
as Dead Letter queue
- When the destination queue is full, the dead-letter queue occurs. It is
identified by SYSTEM.DEAD.LETTER.QUEUE.
- A dead-letter queue is defined for distributed queuing, on each queue manager
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