[jboss-user] [Messaging, JMS & JBossMQ] - How does the durable subscription work behind the scenes?

scotthkao do-not-reply at jboss.com
Wed May 7 23:19:50 EDT 2008


I know that the JBossMQ message are stored first in the database. Does the underlying mechanism deal with durable subscription 
1. by making a durable copy for each subscriber (n copies of the same messages) or
2. by making a last sent message index (n copies of last sent index) and a single copy of complete messages?

Thanks,
Scott

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