You must have two Adaptive Servers configured for failover.
Only changes that were committed to the database before failover are retained when the client fails over.
You must set the REQUEST_HA_SESSION jConnect connection property to “true” (see “Connection properties”).
jConnect event notification does not work when failover occurs. See “Using event notification”.
Close all statements when they are no longer used. jConnect stores information on statements to enable failover. Unclosed statements result in memory leaks.