Types of local queue

 

Each queue manager can have some local queues that it uses for special purposes:

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.

These special queues are described in greater detail in the following sections.

 

Parent topic:

Types of queue

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