WebLogic Server supports Fast Connection Failover, an Oracle feature which provides an application-independent method to implement Oracle RAC event notifications, such as detection and cleanup of invalid connections, load balancing of available connections, and work redistribution on active Oracle RAC instances.
For more information, see Using Fast Connection Failover" in Universal Connection Pool for JDBC Developer's Guide.
To enable Fast Connection Failover on a data source, set the following connection pool properties:
In Driver Class Name—set the class name to oracle.jdbc.pool.OracleDataSource
.
In Properties—set the ONS configuration string to remotely subscribe the Oracle RAC nodes to Oracle FAN/ONS events. For example: ONSConfiguration=nodes=hostname1:port1,hostname2:port2
Note:
Oracle's OracleDataSource class is not XA-capable, so the resulting data source does not implement a XA connection pool.