Martyn Taylor created ARTEMIS-366:
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             Summary: MQTT Retain Messages use message.copy()
                 Key: ARTEMIS-366
                 URL: https://issues.apache.org/jira/browse/ARTEMIS-366
             Project: ActiveMQ Artemis
          Issue Type: Improvement
            Reporter: Martyn Taylor


The MQTT Retain implementation uses special address to handling retained 
messages.  Any retained message received will be forwarded to the appropriate 
address and a copy sent to the special retain address.

Since we are not uses pooled buffers, the buffer allocation for copies of 
retained messages can be high.  We should try to use a message reference 
instead of copy.



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