Help configure MDB threads
Under JBoss 4.0 and earlier versions I had an MDB with the following jboss.xml deployment descriptor:
<jboss> <enterprise-beans> <message-driven> <ejb-name>LoggingMDB</ejb-name> <destination-jndi-name>queue/loggingQueue</destination-jndi-name> <configuration-name>LoggingMDB Message Driven Bean</configuration-name> </message-driven> </enterprise-beans> <container-configurations> <container-configuration extends="Standard Message Driven Bean"> <container-name>LoggingMDB Message Driven Bean</container-name> <container-pool-conf> <MinimumSize>1</MinimumSize> <MaximumSize>100</MaximumSize> <strictMaximumSize>false</strictMaximumSize> </container-pool-conf> <depends>xo.services:service=ConfigurationManager</depends> </container-configuration> </container-configurations> </jboss>
It worked, the MDB would scale up to 100 threads.
However now we've upgraded our servers to JBoss 4.2.3, and the MDB seems to be limited to 15 threads.
As a first step in fixing this, I updated the MDB code/packaging to EJB3 with annotation such as:
@MessageDriven
(activationConfig={
@ActivationConfigProperty(propertyName="destinationType",
propertyValue="javax.jms.Queue"),
@ActivationConfigProperty(propertyName="destination",
propertyValue="queue/loggingQueue"),
@ActivationConfigProperty(propertyName = "maxSession",
propertyValue = "100")})
However it still seems to be limited to 15 threads.
Reviewing random bits of unorganized wiki documentation I found the answer may be in deploy/ejb3-interceptors-aop.xml:
<domain name="Message Driven Bean"> ... <annotation expr="!class(@org.jboss.annotation.ejb.PoolClass)"> @org.jboss.annotation.ejb.PoolClass (value=org.jboss.ejb3.StrictMaxPool.class, maxSize=15, timeout=10000) </annotation> </domain>
Could somebody please explain to me whether it's possible to:
* Configure these annotations in a separate file, preferably bundled in the EJB jar/ear?
* Affect the pool size of this particular MDB, rather than the default which would affect other MDBs?
