Hi Jorge,
Do you want only one MDB instance to consume from a queue at any point.
And your MDB is deployed on a standalone instance (or DAS).
Have you tried setting the max-pool-size to 1.
<bean-pool>
<steady-pool-size>1</steady-pool-size>
<resize-quantity>1</resize-quantity>
<max-pool-size>1</max-pool-size>
</bean-pool>
Please let me know if i have mis-understood your question.
Thanks
-Ramesh
Jorge Campins wrote:
> *From:* Jorge Campins <mailto:jrcampins_at_cantv.net>
> *To:* users_at_glassfish.dev.java.net <mailto:users_at_glassfish.dev.java.net>
> *Sent:* Thursday, June 12, 2008 6:55 AM
> *Subject:* (nbjrcg) Is it possible to control the number of concurrent
> instances of a Message-Driven-Bean?
>
> Is it possible to control the number of concurrent instances of a
> Message-Driven-Bean?
>
>
>
> In particular I would like to avoid messages from a specific queue to be
> retrieved in parallel by 2 or more instances of the corresponding MDB.
>
>
>
> Thanks.
>
>
>