WebSphere MQ----Queue

in the The concept of the queue in MQ is basically the same as the concept in the data structure of our school, and this queue is actually a container for storing messages. Where queues can be divided into the following:

• Local queue: Where only the local queue is the real queue entity. Where the local queue can be divided into: Initialize the queue (initialize the queue as the triggering function of the message), the target queue (the destination queue is the destination of the message, can hold the message for a long time), the dead-letter queue (if the message cannot reach the destination and cannot be routed out, it will be put into the dead letter queue), Answer queue (because the message needs to respond after sending, the response can be automatically generated by the system of the message report, or the other application generated by the reply message), command queue, transmission queue (in the transmission of the message to be sent far away will be placed in the transmission queue, at the appropriate time will be sent to the distance, From the standpoint of the local system, the transmission queue is used to stage output messages.

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• Remote queues: In fact, remote queues are similar to alias queues and are just a queue definition. Where the remote queue is defined is usually a local queue that points to other remote queue managers. The remote queue includes the target Queue Manager and the target queue name during the definition process, and the definition of such a queue is transparent to the application that is visited. This technique not only requires the application to operate on a simple queue name, but also dynamically changes the route by modifying the remote queue definition online.

• Alias queue: An alias queue is a queue that points to the local queue manager

• Model queue: The model queue is actually a queue definition in itself, but when the model queue is opened, the Queue Manager creates a local queue, called a dynamic queue, with this definition as the model.

WebSphere MQ----Queue