In a Nutshell
Oracle was one of the first commercial databases to foresee the need for an efficient mechanism to deal with a large user population and workload distribution in a single-instance database as well as Oracle RAC environments. Workload distribution is very critical for an Oracle RAC environment to have balanced resource utilization among the cluster nodes and for optimal performance.
The Transparent Application Failover (TAF) feature helps the connected sessions seamlessly migrate to another instance during an unexpected instance failure. Complex applications and applications not supported by TAF configurations can utilize the Fast Application Notification (FAN) feature discussed in this chapter. End-user applications can subscribe ...
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