BPEL + AQ + Load Balancing + OAS Cluster

Hi all
Is there a way to provide load balancing when reading AQ messages (JMS queue, not topic) to a OAS Cluster?
Explaining:
A BPEL server reads a flat file and send JMS messages using an AQ adapter. In the other side, there is a Java application running on a OAS cluster expecting the JMS messages, reading the queue on the AQ. As there is just one queue and many consumers (6 applications instances running on the cluster), how can I provide JMS load balancing between these 6 applications?
Sorry if this is not the correct forum to post, if you could recommend another forum I would be glad.
Thank you
Marcelo

Hi,
thanks for your answer. could you please be more specific? We have found something in the JMS specification:
JMS Spec 1.1 / Sun:
6.11.1 Durable TopicSubscriber
Only one session at a time can have a TopicSubscriber for a particular durable subscription. See
Section 4.3.2, Client Identifier, for more information.
So only one instance (JVM) can have the JMS-connection open to the Topic. How do we load balance these messages then into the Oracle Application Server?
As a workaround, we we have currently deployed a "singleton EAR" which acts as a messaging bridge. It transfers messages from the topic into an "incoming queue" at AQ database. That queue is configured and visible on all OC4j instances. Is this the right way to load balance messages on a OC4J/OAS cluster?
grüße,
\thomas
Edited by: thavemei on 09.11.2009 02:26

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