Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What is Server-side Transparent Application Failover (TAF) and how do I use it?

April 26, 2017application failover server-side TAF transparent

0

Posted

What is Server-side Transparent Application Failover (TAF) and how do I use it?

1 Answer

0

Posted

Oracle Database 10g Release 2, introduces server-side TAF when using services. After you create a service, you can use the dbms_service.modify_service pl/sql procedure to define the TAF policy for the service. Only the basic method is supported. Note this is different than the TAF policy (traditional client TAF) that is supported by srvctl and EM Services page. If your service has a server side TAF policy defined, then you do not have to encode TAF on the client connection string. If the instance where a client is connected, fails, then the connection will be failed over to another instance in the cluster that is supporting the service. All restrictions of TAF still apply. NOTE: both the client and server must be 10.2 and aq_ha_notifications must be set to true for the service.