I am using jboss-4.0.5.GA and MySQL 5.0 My default-ds.xml configuration is .... ... <connection-url>jdbc:mysql://test1,test2/TESTDB?zeroDateTimeBehavior=convertToNull&failOverReadOnly=false</connection-url> .... I want to do some specifc operations whenever a database failover occurs. I would like to know, how to implement the listener for failover, and what are the configurations needed in jboss Posting it here as suggested by Brian in JBoss Clustering Forum Moderator (I Hope) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4052085#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...