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3.8. Replication
Asynchronous replication of queue state through the use of events on a secondary broker.
For a detailed discussion, see the following resource:
queue state replication
3.9. Watchdog
The watchdog plug-in will kill the qpidd broker process if it becomes stuck for longer than a configured interval.
3.10. XML Exchange
A plug-in exchange which can open messages and run xquery against it's XML content in order to determine routing to the appropriate queue.
3.11. Last Value Queue (LVQ)
A queue in which the content is maintained as key-value pairs. Publishing to a LVQ updates the value against the key; consuming a message allows the last value to be read.
For a detailed discussion, see the following resources:
LVQ
LVQ Example
3.12. Priority Queue
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