The case I encounter is that if one of the database on RAC array is suddenly down, the transaction is rolled back and connections between JBoss and Database are broken.
What I want is to preserve the JDBC connections and redirect them to another oracle database on the array. Also, can transactions preserved?
In this case, should I use TAF or FCF?
Besides, if TAF is suggested to be used, is it true that thick driver has to be used in JBoss?