For anyone else who might be having this problem: I think I have figured it out.
My initial conclusion was correct; JBoss was creating more message threads than it had the heap capacity to support, causing an OutOfMemoryError. The minimum and maximum number of message threads for a standard MDB queue is regulated by the message-driven-bean invoker-proxy-binding in conf/standardjboss.xml: | <invoker-proxy-bindings> | <invoker-proxy-binding> | <name>message-driven-bean</name> | ... | <MinimumSize>1</MinimumSize> | <MaximumSize>15</MaximumSize> | ... | You can change the default values, or specify custom minimum/maximum number of threads for the MDB(s) in your app by doing the following: 1. Copy the "message-driven-bean" invoker-proxy-binding from standardjboss.xml into the jboss.xml for your application. Remember to enclose it in <invoker-proxy-bindings> tags. 2. Change the name tag to something else. 3. Copy the "Standard Message Driven Bean" container-configuration into your application's jboss.xml. It should look something like this: | <container-configuration> | <container-name>Standard Message Driven Bean</container-name> | <call-logging>false</call-logging> | <invoker-proxy-binding-name>message-driven-bean</invoker-proxy-binding-name> | ... | <container-configuration> | Remember to enclose it in <container-configurations> tags. 4. Change the container-name tag value to something else. 5. Change the invoker-proxy-binding-name tag to reflect the new name of your invoker-proxy-binding. 6. Make sure that all the MDB references in jboss.xml refer to the new container configuration by changing/adding the configuration-name tag: | <enterprise-beans> | <message-driven> | <ejb-name>SomeMDB</ejb-name> | <destination-jndi-name>queue/SomeMDBQueue</destination-jndi-name> | <configuration-name>WhateverNameYouGaveTheContainerConfig</configuration-name> | </message-driven> | | ... | I think that the process is similar for stateless session beans as well, but might require some research as to how it differs. Relevant links: http://wiki.jboss.org/wiki/Wiki.jsp?page=ConfigJBossMDB http://www.precisejava.com/javaperf/j2ee/EJB.htm#EJB148 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3935243#3935243 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3935243 ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
