Multithreading MDBs

[sysuser1]

I am currently using JBoss 3.2.1. My app consists of 2 MDBs listening on 2 separate queues. I have set them up so that only one instance of each MDB will be active at a time (i.e. only one listener on each queue) by setting MaximumSize to 1 in the invoker-proxy-binding session of the jboss.xml file. The problem is, when it's running it seems that only one thread has been assigned to serve both MDBs (Thread.currentThread().getName() constantly shows "Thread Pool Worker-0".) Isn't the container supposed to assign a separate thread to serve each MDB in this case to achieve some sort of concurrency? Any help from people who understand how the JBoss container works is appreciated. Thanks.

[raja05]

Are you using the configuration-name parameter in your jboss.xml or
redefining the standardjboss.xml to have only one worker thread?

-Raj

[sysuser1]

I am setting it in my jboss.xml. Actually I tried it in both jboss.xml and standardjboss.xml and the same thing happened.