Types of local queue
Each queue manager can have some local queues that it uses for special purposes:
These special queues are described in greater detail in the following sections.
- Transmission queues
- A transmission queue is a local queue that holds messages destined for a remote queue. The messages are forwarded to their destination queue by WebSphere MQ when a communication program and link are available.
- Initiation queues
- An initiation queue is a local queue on which the queue manager puts a message to start an application when certain conditions (such as more than 10 messages arriving, for example) are met on a local queue.
- Dead-letter (undelivered message) queue
- The dead-letter queue is a local queue on which the queue manager and applications put messages they cannot deliver. You need to process any messages that arrive on this queue.
- System command queue
- The system command queue is a queue to which suitably authorized applications can send WebSphere MQ commands.
- System default queues
- When you create a queue (other than a dynamic queue), WebSphere MQ uses the queue definitions stored in the system default queues.
- Channel queues
- Channel queues are used for distributed queue management.
- Event queues
- Event queues hold event messages. These messages are reported by the queue manager or a channel.
Parent topic:
Types of queue
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