[jboss-user] [Messaging, JMS & JBossMQ] - Re: Higher JMSPriority not stepping in front of lower JMSPri

[adrian@jboss.org]

anonymous wrote : 
  | It appears that JBoss is queuing up a message before the MDB even processes it.  So a higher priority message must wait what appears to be the invoker-proxy-binding's  # of messages before it jumps in front.
  | 

Correct. It's called read ahead. It would be very inefficient (latency) to wait
until a message listener completes its onMessage() before
retrieving the next message to process from the server.

It's not configurable in JBossMQ, try JBoss Messaging 
or submit a patch to make it configurable (there's an old feature request
about it somewhere but it was closed when we stopped developing JBossMQ).

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