[CONF] Apache Qpid: Use Priority Queues (page edited)

Fri, 19 Sep 2008 05:25:03 -0700

Page Edited : qpid : Use Priority Queues

Use Priority Queues has been edited by Marnie McCormack (Sep 19, 2008).

(View changes)

Content:

It is possible to define a queue as a priority queue in the virtualhost configuration file. When defining the queue, add a <priority>true</priority> element. This will ensure that the queue has 10 distinct priorities, which is the number supported by JMS.

If you require fewer priorities, it is possible to specify a "<priorities>

Unknown macro: {int}
</priorities>" element which will give the queue that number of distinct priorities. When messages are sent to that queue, their effective priority will be calculated by partitioning the priority space. If the number of effective priorities is 2, then messages with priority 0-4 are treated the same and messages with priority 5-9 are treated equivalently. 

<queue>
          <name>test</name>
          <test>
            <exchange>amq.direct</exchange>
            <priority>true</priority>
          </test>
        </queue>

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