Ken Delong wrote:

> Suppose I have a Message-driven bean that is linked to a Topic in an
> application.  If the app is clustered, so that there are copies of my MDB in
> multiple JVMs, what happens?  Since a Topic usually broadcasts is message to
> every active subscriber, does that mean that an MDB in each JVM will get a
> copy of the message?


Good question. It depends on whether your clustered JMS/MDB
implementation provides a "single system image", which in my opinion
it should if the clustering architecture is solid.

Best to ask your vendor.

<vendor>

With Sybase EAServer, only one JVM will receive such a message
(however if that JVM crashes another will take the message).

</vendor>


> Is this documented in the spec somewhere?  I couldn't find it.
>
> ----------------------
> Kenneth DeLong
> Senior Consultant
> Valtech, Inc.
> Cell phone: 510-517-5839
>
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