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What type of callbacks are supported with OCI when using FAN/FCF?

April 26, 2017callbacks fan fcf OCI supported type

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What type of callbacks are supported with OCI when using FAN/FCF?

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There are two separate callbacks supported. The HA Events (FAN) callback is called when an event occurs. When a down event occurs, for example, you can clean up a custom connection pool. i.e. purge stale connections. When the failover occurs, the TAF callback is invoked. At failover time you can customize the newly created database session. Both FAN and TAF are client-side callbacks. FAN also has a separate server side callout that should not be confused with the OCI client callback.