How manage the Tuxedo to reconnect to base what database restart or failover to standby dataguard?

Hi expert,

My Tuxedo apps using simple to connect to the oracle database, do not use XA.

All connect and disconnect statements written in code.

In the situation, when the base data to restart or failover of dataguard standby database. I have to restart all the servers in Tuxedo to reconnect to the Oracle server.

If I want to reconnect to the database in the application code. I need to know all the exception of disconnection and catch.

ORA-00028, ORA-03135, ORA-01012 are all oracle error. perhaps than others, no list.

Do you know how to enumerate all the exception?

or is there a way to reconnect db connection all servers in tuxedos at the request?

Thank you in advance,

Chao

Hi Chao,

The answer depends on the platform and version of Tuxedo.  On Oracle Engineered Systems with Tuxedo 12.1.3, you can make use of our new RAC are supported features to handle this in a transparent way, in addition to getting better performance if you use RAC.  New support includes support for FAN so connections can be switched forwards an instance goes down for maintenance.

For all other environments, I would say looking at TAF (application transparent failover).  TAF should be able to reconnect transparent to another instance or database dataguard.

Kind regards

Todd little

Chief Architect of Oracle Tuxedo

Tags: Fusion Middleware

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