[jboss-user] [JBoss Messaging] - Re: Messages are moved to expiry queue only when there is a

timfox do-not-reply at jboss.com
Fri Jul 27 14:34:00 EDT 2007

"genman" wrote : What I did for JBoss MQ is schedule a timeout to occur for all expiring messages, similar to the scheduled message feature, which does the move/removal.
  | There are some scalability issues with doing that. Namely, every soon and not-so-soon expired message ID is kept in memory on a heap. It'd be better if the expiry date was kept as a separate column in the DB, and indexed, to assist in finding these messages without having to scan them all.

Yes, I thought about this too.

It would be the easiest solution to implement, but as you mention too, I think it has scalability issues.

I am thinking along the lines of a expirer thread that periodically scans the queue

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