Hello all. When i get this exception is possible know what DataSource throw the Exception? There is any configuration on log4j for JBoss Connection Manager log the name of resource throw those exception types? I think this is trivial to do, but i don't know if is possible do it with a simple configuration on JBoss services. javax.resource.ResourceException: No ManagedConnections available within configured blocking timeout ( 30000 [ms] ) | at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.getConnection(InternalManagedConnectionPool.java:301) | at org.jboss.resource.connectionmanager.JBossManagedConnectionPool$BasePool.getConnection(JBossManagedConnectionPool.java:500) | at org.jboss.resource.connectionmanager.BaseConnectionManager2.getManagedConnection(BaseConnectionManager2.java:347) | at org.jboss.resource.connectionmanager.TxConnectionManager.getManagedConnection(TxConnectionManager.java:330) | at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:402) | at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:849) | at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:90) | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223011#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...