"jackminder" wrote : | In the future could I modify the transaction-service.xml and turn debugging off to eliminate these errors? | | | Serverlog Errors: | | SQLException occurred: No ManagedConnections available within configured blocking timeout ( 30000 [ms] ); - nested throwable: (javax.resource.ResourceException: No ManagedConnections available within configured blocking timeout ( 30000 [ms] )) | | | No , you don't need to play with the transaction-service.xml file . The error what you are seeing is explained here http://wiki.jboss.org/wiki/Wiki.jsp?page=WhatDoesTheMessageNoManagedConne... Here are the possibilities : 1) Leaked Connections . 2) Long Running genuine SQL's . You can check the leaked connections from the CachedConnectionManagerMbean's listInUseConnection from the jmx-console . To fix it you need to take care of the leaked connections which should be done by fixing the application code . View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4106966#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...