[jboss-dev-forums] [Design of Messaging on JBoss (Messaging/JBoss)] - Re: Once and only once delivery?

[adrian@jboss.org]

"timfox" wrote : 
  | I think this is less intensive than tx logging since we only have to log the id rather than the entire tx state, also we don't have the extra client->server call for the prepare.
  | 

Are you sure? Writing a custom garbage collector sounds a lot more
complicated than using an already written and optimized transaction log in the
transaction manager.

Also, this is an additional overhead for people that deliberately
didn't select this QoS because they don't need it.

e.g. The body of the message already contains a unique id
that they need to check anyway because of the potential of a redelivery
after a failure.

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