anonymous wrote : It seems that InternalManagedConnectionPool.getConnection() always retrieves the last member of available connections, without trying to find the corret one: | No that is not correct , these connections are already matched . mc.getGWConnectionRequestInfo().equals(info) This seems to be faling . Put some logging in the MCF's matchManagedConnection(..) , this method looks incorrect to me . Have you overridden the equals(..) of GWConnectionRequestInfo ? Have a look at the implementation of WrappedConnectionrequest.java at https://anonsvn.jboss.org/repos/jbossas/branches/Branch_4_2/connector/src... ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4118030#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...